layout.test

<?php
/**
 * @file
 * Tests for the Layout module.
 */
require_once BACKDROP_ROOT . '/core/modules/simpletest/tests/upgrade/upgrade.test';

/**
 * Tests the interface for adding, removing, and moving blocks.
 */
class LayoutInterfaceTest extends BackdropWebTestCase {
  protected $profile = 'minimal';
  protected $admin_user;
  protected $web_user;
  protected $test_node1;
  protected $test_node2;
  protected $orphaned_blocks = FALSE;

  function setUp() {
    parent::setUp('layout_test');

    // Create and login admin user.
    $this->admin_user = $this->backdropCreateUser(array(
      'access administration pages',
      'administer site configuration',
      'administer modules',
      'administer layouts',
      'administer nodes',
    ));
    $this->backdropLogin($this->admin_user);

    // Create a web user.
    $this->web_user = $this->backdropCreateUser(array(
      'access user profiles',
      'access content',
      'administer nodes',
    ));

    // Create content types for testing.
    $this->backdropCreateContentType(array('type' => 'page', 'name' => 'Page'));
    $this->backdropCreateContentType(array('type' => 'post', 'name' => 'Post'));

    $this->test_node1 = $this->backdropCreateNode(array(
      'type' => 'post',
      'title' => $this->randomString(),
      'uid' => $this->admin_user->uid,
    ));

    $this->test_node2 = $this->backdropCreateNode(array(
      'type' => 'page',
      'title' => $this->randomString(),
      'uid' => $this->web_user->uid,
    ));
  }

  /**
   * Test the support for contexts within conditions and blocks.
   */
  function testRelationships() {
    // Make a new layout that creates a custom path with wildcards.
    $layout_title = $this->randomName();
    $layout_name = strtolower($layout_title);
    $layout_path = 'node/%';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_path,
    );
    // Check the path first to populate available contexts.
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Check path'));

     // Test Author from Content relationship.
    $edit = array();
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/configure', $edit, t('Add relationship'));

    $edit = array(
      'relationship' => 'author_from_node:relationship',
    );
    $this->backdropPost(NULL, $edit, t('Load relationship'));
    $this->backdropPost(NULL, array(), t('Add relationship'));

    $this->backdropPost(NULL, array(), t('Create layout'));

    // Add the test block that requires both node and user contexts.
    $this->clickLink(t('Add block'), 3);
    $this->assertText(t('A testing block for layouts with contexts.'));
    $this->clickLink(t('Layout bar block'));
    $select_options = $this->xpath('//*[@id=:select]//option', array(
      ':select' => 'edit-contexts-my-user',
    ));
    $this->assertEqual(count($select_options), 2, 'Two options are found in the select list.');
    $relationship_option = (string) $select_options[0]['value'];
    $this->assertTrue(strpos($relationship_option, 'relationship') === 0, 'First select list option is the user context from the author relationship.');

    $edit = array(
      'contexts[my_user]' => $relationship_option,
    );
    $this->backdropPost(NULL, $edit, t('Add block'));

    // Record the UUID for the newly added block.
    $last_block = $this->xpath('(//*[contains(@class,:region)]//*[@data-block-id])[last()]', array(
      ':region' => 'l-sidebar',
    ));
    $block_uuid = (string) $last_block[0]['data-block-id'];
    $block_edit_url = 'admin/structure/layouts/manage/' . $layout_name . '/configure-block/editor/' . $block_uuid;

    // Save the layout.
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Visit a node created by another user. The user context from that node,
    // rather than the current user, should be available.
    // The current user is User 2.
    $this->backdropGet('node/' . $this->test_node2->nid);
    $this->assertText(format_string('The user name is @name and the node title is @title', array('@name' => $this->web_user->name, '@title' => $this->test_node2->title)));
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name);

    // Change the user context on the test block to use the current user and
    // test that the node user is no longer displayed.
    $edit = array(
      'contexts[my_user]' => 'current_user',
    );
    $this->backdropPost($block_edit_url, $edit, t('Update block'));
    $this->backdropPost(NULL, array(), t('Save layout'));

    $this->backdropGet('node/' . $this->test_node2->nid);
    $this->assertNoText(format_string('The user name is @name and the node title is @title', array('@name' => $this->web_user->name, '@title' => $this->test_node2->title)));

    // Visit a node created by the current user (User 2) and test that the
    // correct user is displayed.
    $this->backdropGet('node/' . $this->test_node1->nid);
    $this->assertText(format_string('The user name is @name and the node title is @title', array('@name' => $this->admin_user->name, '@title' => $this->test_node1->title)));

     // Remove the author from node relationship.
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/configure', array(), t('Remove'));
  }

  /**
   * Test that layout templates may be enabled and disabled.
   */
  function testLayoutTemplates() {
    // Attempt to disable the 1 column layout (should fail).
    $this->backdropGet('admin/structure/layouts/settings');
    $edit = array(
      'templates[boxton]' => FALSE,
      'templates[moscone]' => TRUE,
      'templates[moscone_flipped]' => TRUE,
      'templates[simmons]' => TRUE,
    );
    $this->backdropPost(NULL, $edit, t('Save configuration'));
    $this->assertText(t('The "Boxton" layout template is currently in use and may not be disabled.'));

    // Check to see that the Simmons layout is an existing option.
    $this->backdropGet('admin/structure/layouts/manage/default/configure');
    $this->assertText('Simmons');

    // Disable the Bartik layout.
    $edit = array(
      'templates[boxton]' => TRUE,
      'templates[moscone]' => TRUE,
      'templates[moscone_flipped]' => TRUE,
      'templates[simmons]' => FALSE,
    );
    $this->backdropPost('admin/structure/layouts/settings', $edit, t('Save configuration'));
    $this->assertText(t('Your configuration has been saved.'));

    // Check to see that the Simmons layout is no longer an option.
    $this->backdropGet('admin/structure/layouts/manage/default/configure');
    $this->assertNoText('Simmons');

    // Check that hidden templates are not shown by default.
    $this->assertNoText('3/3/4 columns');

    // Enable hidden layouts manually.
    config_set('layout.settings', 'excluded_templates', array());

    // Check that the hidden templates are now available.
    $this->backdropGet('admin/structure/layouts/manage/default/configure');
    $this->assertText('3/3/4 columns');
    $this->backdropGet('admin/structure/layouts/settings');
    $this->assertText('3/3/4 columns');

    // Disable the legacy Bartik layout.
    $edit = array(
      'templates[three_three_four_column]' => FALSE,
    );
    $this->backdropPost('admin/structure/layouts/settings', $edit, t('Save configuration'));
    $this->assertNoText('3/3/4 columns');

    // Post again just make sure the hidden option doesn't return.
    $this->backdropPost('admin/structure/layouts/settings', array(), t('Save configuration'));
    $this->assertNoText('3/3/4 columns');
  }

  /**
   * Test the path view page link.
   */
  function testViewPageLink() {
    $this->backdropGet('admin/structure/layouts');
    $this->clickLink(t('Add layout'));

    // Create a new layout at a new path.
    $layout_title = $this->randomName();
    $layout_name = strtolower($layout_title);
    $layout_url = 'a-menu-item-path';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_url,
    );
    $this->backdropPost(NULL, $edit, t('Create layout'));
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name);
    layout_reset_caches();

    // Check that the view page link is present.
    $this->assertLinkByHref($layout_url, 0, 'View page link found.');
    $this->assertLink('View page', 0, 'View page link text found.');
    $this->clickLink(t('View page'));
    $this->assertResponse(200, 'View page link goes to path.');

    // Create a new layout overriding node/%.
    $layout_title = $this->randomName();
    $layout_name = strtolower($layout_title);
    $layout_url = 'node/%';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_url,
    );
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Create layout'));

    // Check that the view page link is not present.
    $this->assertNoLinkByHref($layout_url, 0, 'View page link found.');
    $this->assertNoLink('View page', 1, 'View page link text found.');
  }

  /**
   * Add and remove blocks from a custom layout path.
   */
  function testBlockBasics() {
    $this->backdropGet('admin/structure/layouts');
    $this->clickLink(t('Add layout'));

    // Create a new layout at a new path.
    $layout_title = $this->randomName();
    $layout_name = strtolower($layout_title);
    $layout_url = 'layout-test-path';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_url,
    );
    $this->backdropPost(NULL, $edit, t('Create layout'));

    // We should be taken to the layout content page next.
    $this->assertText(t('Layout created. Blocks may now be added to this layout.'));

    // Check that a block that requires contexts is not shown.
    $this->assertNoLink(t('Main page content'));
    $this->assertNoLink(t('Layout bar block'));

    // Add a block to the sidebar.
    $this->clickLink(t('Add block'), 3);
    $this->assertText(t('A testing block for layouts.'));
    $this->clickLink(t('Layout foo block'));
    $edit = array(
      'block_settings[count]' => 5,
    );
    $this->backdropPost(NULL, $edit, t('Add block'));

    // Record the UUID for the newly added block.
    $last_block = $this->xpath('(//*[contains(@class,:region)]//*[@data-block-id])[last()]', array(
      ':region' => 'l-sidebar',
    ));
    $block_uuid = (string) $last_block[0]['data-block-id'];
    $block_edit_url = 'admin/structure/layouts/manage/' . $layout_name . '/configure-block/editor/' . $block_uuid;

    // Check the admin label and description.
    $elements = $this->xpath('//*[contains(@id,:id)]//*[contains(@class,:class)]//span[normalize-space()=:title]', array(
      ':id' => 'layout-editor-block-' .$block_uuid,
      ':class' => 'layout-editor-block-title',
      ':title' => t('Layout foo block'),
    ));
    $this->assertEqual(count($elements), 1, 'The sample block label was found.');
    $elements = $this->xpath('//*[contains(@id,:id)]//*[contains(@class,:class)]//*[normalize-space()=:description]', array(
      ':id' => 'layout-editor-block-' .$block_uuid,
      ':class' => 'layout-editor-block-content',
      ':description' => t('A testing block for layouts.'),
    ));
    $this->assertEqual(count($elements), 1, 'The sample block description was found.');

    // Change the label and description.
    $block_new_label = $this->randomName();
    $block_new_description = $this->randomName();
    $edit = array(
      'admin_label' => $block_new_label,
      'admin_description' => $block_new_description,
    );
    $this->backdropPost($block_edit_url, $edit, t('Update block'));

    // Check the new admin label and description.
    $elements = $this->xpath('//*[contains(@id,:id)]//*[contains(@class,:class)]//span[normalize-space()=:title]', array(
      ':id' => 'layout-editor-block-' .$block_uuid,
      ':class' => 'layout-editor-block-title',
      ':title' => $block_new_label,
    ));
    $this->assertEqual(count($elements), 1, 'The sample block label was found.');
    $elements = $this->xpath('//*[contains(@id,:id)]//*[contains(@class,:class) and contains(text(), :description)]', array(
      ':id' => 'layout-editor-block-' .$block_uuid,
      ':class' => 'layout-editor-block-content',
      ':description' => $block_new_description,
    ));
    $this->assertEqual(count($elements), 1, 'The sample block description was changed.');

    // Save the layout.
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Check that the layout is in the listing of layouts.
    $this->backdropGet('admin/structure/layouts');
    $this->assertText(check_plain($layout_title));

    // Go to the the layout path and confirm the block exists, has the right
    // setting, and is the right place.
    $this->backdropGet($layout_url);
    $this->assertText('Foo subject');
    $this->assertText(format_string('The setting of count is @setting.', array('@setting' => 5)));
    $elements = $this->xpath('//*[contains(@class,:region)]//*[contains(@class,:block)]', array(
      ':region' => 'l-sidebar',
      ':block' => 'block-layout-test-foo',
    ));
    $this->assertEqual(count($elements), 1, 'The sample block was found in the sidebar.');

    // Try updating the block title to use a custom string.
    $block_new_title = $this->randomName();
    $edit = array(
      'title_display' => LAYOUT_TITLE_CUSTOM,
      'title' => $block_new_title,
    );
    $this->backdropPost($block_edit_url, $edit, t('Update block'));
    $this->backdropPost(NULL, array(), t('Save layout'));
    $this->backdropGet($layout_url);
    $this->assertText(check_plain($block_new_title));

    // Set the block title to nothing.
    $edit = array(
      'title_display' => LAYOUT_TITLE_NONE,
    );
    $this->backdropPost($block_edit_url, $edit, t('Update block'));
    $this->backdropPost(NULL, array(), t('Save layout'));
    $this->backdropGet($layout_url);
    $this->assertNoText('Foo subject');
    $this->assertNoText($block_new_title);

    // Set the block title back to normal and set a special block class.
    $custom_class = $this->randomName();
    $edit = array(
      'title_display' => LAYOUT_TITLE_DEFAULT,
      'style_settings[classes]' => $custom_class,
    );
    $this->backdropPost($block_edit_url, $edit, t('Update block'));
    $this->backdropPost(NULL, array(), t('Save layout'));

    $this->backdropGet($layout_url);
    $this->assertText('Foo subject');
    $this->assertNoText($block_new_title);
    $block_element = $this->xpath('(//*[contains(@class,:region)]//*[contains(@class,:block)])[contains(@class,:custom-class)]', array(
      ':region' => 'l-sidebar',
      ':block' => 'block-layout-test-foo',
      ':custom-class' => $custom_class,
    ));
    $this->assertEqual(count($block_element), 1, 'The sample block was found in the sidebar.');

    // Use the dynamic block style. Save once to update the form (usually done
    // via AJAX) then, edit and save again with the dynamic settings.
    $title_class = $this->randomName();
    $content_class = $this->randomName();
    $edit = array(
      'style' => 'dynamic',
    );
    $this->backdropPost($block_edit_url, $edit, t('Update block'));
    $edit = array(
      'style_settings[wrapper_tag]' => 'aside',
      'style_settings[title_tag]' => 'h3',
      'style_settings[title_classes]' => $title_class,
      'style_settings[content_tag]' => 'p',
      'style_settings[content_classes]' => $content_class,
    );
    $this->backdropPost($block_edit_url, $edit, t('Update block'));
    $this->backdropPost(NULL, array(), t('Save layout'));

    $this->backdropGet($layout_url);
    $block_element = $this->xpath('(//*[contains(@class,:region)]//aside[contains(@class,:block)])[contains(@class,:custom-class)]', array(
      ':region' => 'l-sidebar',
      ':block' => 'block-layout-test-foo',
      ':custom-class' => $custom_class,
    ));
    $this->assertEqual(count($block_element), 1, 'The sample block was found in the sidebar as an aside tag.');
    if ($block_element) {
      $title_element = $block_element[0]->xpath('h3');
      $content_element = $block_element[0]->xpath('p');
      $this->assertEqual(count($title_element), 1, 'The sample block has the correct H3 heading tag.');
      $this->assertEqual(count($content_element), 1, 'The sample block has the correct P content tag.');
      $this->assertEqual($title_element[0]['class'], $title_class, 'The sample block title has the correct class.');
      $this->assertEqual($content_element[0]['class'], $content_class, 'The sample block content has the correct class.');
    }

    // Try injecting XSS into the classes.
    $xss = '"><svg onload="alert(\'XSS hole\')">';
    // The filtered string after running through backdrop_html_class().
    $filtered_xss = 'svg onloadalertXSS hole';
    $edit = array(
      'style_settings[classes]' => $xss,
      'style_settings[title_classes]' => $xss,
      'style_settings[content_classes]' => $xss,
    );
    $this->backdropPost($block_edit_url, $edit, t('Update block'));
    $this->backdropPost(NULL, array(), t('Save layout'));

    $this->backdropGet($layout_url);
    $this->assertNoRaw($xss);
    $this->assertRaw($filtered_xss);

    // Try moving the block to a different position within the layout.
    $edit = array(
      'content[positions][content]' => $block_uuid,
      'content[positions][sidebar]' => '',
    );
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name, $edit, t('Save layout'));
    $this->backdropGet($layout_url);
    $block_element = $this->xpath('//*[contains(@class,:region)]//*[contains(@class,:block)]', array(
      ':region' => 'l-content',
      ':block' => 'block-layout-test-foo',
    ));
    $this->assertEqual(count($block_element), 1, 'The sample block was found in the content area after moving it from the sidebar.');

    // Move the block via the block configuration form.
    $edit = array(
      'region' => 'footer',
    );
    $this->backdropPost($block_edit_url, $edit, t('Update block'));
    $this->backdropPost(NULL, array(), t('Save layout'));

    $this->backdropGet($layout_url);
    $block_element = $this->xpath('(//*[contains(@class,:region)]//*[contains(@class,:block)])', array(
      ':region' => 'l-footer',
      ':block' => 'block-layout-test-foo',
    ));
    $this->assertEqual(count($block_element), 1, 'The sample block was found in the footer after moving via block form.');

    // Try moving the block into the sidebar again via the API.
    backdrop_static_reset();
    $layout = layout_load($layout_name);
    $layout->setBlockPosition($block_uuid, 'sidebar');
    $layout->save();

    $this->backdropGet($layout_url);
    $block_element = $this->xpath('(//*[contains(@class,:region)]//*[contains(@class,:block)])', array(
      ':region' => 'l-sidebar',
      ':block' => 'block-layout-test-foo',
    ));
    $this->assertEqual(count($block_element), 1, 'The sample block was found in the sidebar after moving via the API.');

    // With all the manipulations we've performed, make sure that the block is
    // still only shown once, and did not end up in multiple regions on the page
    // by accident.
    $block_element = $this->xpath('//*[contains(@class,:block)]', array(
      ':block' => 'block-layout-test-foo',
    ));
    $this->assertEqual(count($block_element), 1, 'The sample block is only displayed once after moving it.');

    // Finally, try removing the block.
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name);
    $remove_link = $this->xpath('//*[@data-block-id=:uuid]//a[contains(@class,"remove-block")]', array(
      ':uuid' => $block_uuid,
    ));
    $remove_url_parts = backdrop_parse_url($remove_link[0]['href']);
    $this->backdropGet($remove_url_parts['path'], $remove_url_parts);
    $this->backdropPost(NULL, array(), t('Save layout'));

    $this->backdropGet($layout_url);
    $this->assertNoText('Foo subject');
    $block_element = $this->xpath('//*[contains(@class,:block)]', array(
      ':block' => 'block-layout-test-foo',
    ));
    $this->assertEqual(count($block_element), 0, 'The sample block has been removed.');

    // Delete the layout to prevent it interfering with following tests.
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/delete', array(), t('Delete layout'));
  }

  /**
   * Test block path and type conditions.
   */
  function testBlockPathTypeConditions() {
    // Create a new layout overriding node/%.
    $layout_title = $this->randomName();
    $layout_name = strtolower($layout_title);
    $layout_url = 'node/%';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_url,
    );
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Create layout'));

    // Add a testing block, shown only on page nodes.
    $this->clickLink(t('Add block'), 3);
    $this->clickLink(t('Layout foo block'));
    $block_title = $this->randomString();
    $edit = array(
      'title_display' => LAYOUT_TITLE_CUSTOM,
      'title' => $block_title,
    );
    $this->backdropPost(NULL, $edit, t('Add visibility condition'));
    $edit = array(
      'condition' => 'node_type',
    );
    $this->backdropPost(NULL, $edit, t('Load condition'));
    $edit = array(
      'bundles[page]' => TRUE,
    );
    $this->backdropPost(NULL, $edit, t('Add visibility condition'));
    $this->backdropPost(Null, array(), t('Update block'));
    $this->backdropPost(Null, array(), t('Save layout'));

    $this->backdropGet('node/' . $this->test_node1->nid);
    $this->assertNoText(check_plain($block_title), 'Block not shown on post content.');

    $this->backdropGet('node/' . $this->test_node2->nid);
    $this->assertText(check_plain($block_title), 'Block shown on page content.');

    // Get the block UUID.
    layout_reset_caches();
    $layout = layout_load($layout_name);
    $block_uuid = end($layout->positions['sidebar']);

    // Edit condition to show this block only on post nodes.
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name . '/configure-block/editor/' . $block_uuid);
    $this->backdropPost(NULL, array(), t('Configure'));
    $this->assertRaw('<label for="edit-bundles">Node Type </label>');

    $edit = array(
      'condition' => 'node_type',
    );
    $this->backdropPost(NULL, $edit, t('Load condition'));
    $edit = array(
      'bundles[post]' => TRUE,
      'bundles[page]' => FALSE,
    );
    $this->backdropPost(NULL, $edit, t('Save visibility condition'));
    $this->backdropPost(Null, array(), t('Update block'));
    $this->backdropPost(Null, array(), t('Save layout'));

    $this->backdropGet('node/' . $this->test_node1->nid);
    $this->assertText(check_plain($block_title), 'Block shown on post content.');

    $this->backdropGet('node/' . $this->test_node2->nid);
    $this->assertNoText(check_plain($block_title), 'Block not shown on page content.');

    // Add another condition to show this block only on a single node path.
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name . '/configure-block/editor/' . $block_uuid);
    $this->backdropPost(NULL, array(), t('Add visibility condition'));
    $edit = array(
      'condition' => 'path',
    );
    $this->backdropPost(NULL, $edit, t('Load condition'));
    $edit = array(
      'paths' => 'node/' . $this->test_node1->nid,
    );
    $this->backdropPost(NULL, $edit, t('Add visibility condition'));
    $this->backdropPost(NULL, array(), t('Update block'));
    $this->backdropPost(Null, array(), t('Save layout'));

    // Create another post node and check the combination of conditions work.
    $second_post = $this->backdropCreateNode(array(
      'type' => 'post',
      'title' => $this->randomString(),
    ));
    $this->backdropGet('node/' . $this->test_node1->nid);
    $this->assertText(check_plain($block_title), 'Block shown on post content and path matches.');

    $this->backdropGet('node/' . $second_post->nid);
    $this->assertNoText(check_plain($block_title), 'Block not shown on post content when path does not match.');
  }

  /**
   * Test block entity ID conditions.
   */
  function testBlockEntityIDConditions() {
    // Create a new layout overriding node/%.
    $layout_title = $this->randomName();
    $layout_name = strtolower($layout_title);
    $layout_url = 'node/%';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_url,
    );
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Create layout'));

    // Create another post node.
    $second_post = $this->backdropCreateNode(array(
      'type' => 'post',
      'title' => $this->randomString(),
    ));

    // Add another testing block.
    $this->clickLink(t('Add block'), 3);
    $this->clickLink(t('Layout foo block'));
    $block_title = $this->randomString();
    $edit = array(
      'title_display' => LAYOUT_TITLE_CUSTOM,
      'title' => $block_title,
    );
    $this->backdropPost(NULL, $edit, t('Add visibility condition'));
    $edit = array(
      'condition' => 'node_nid',
    );
    $this->backdropPost(NULL, $edit, t('Load condition'));
    $edit = array(
      'entity_id' => $this->test_node1->nid,
    );
    $this->backdropPost(NULL, $edit, t('Add visibility condition'));
    $this->backdropPost(Null, array(), t('Update block'));
    $this->backdropPost(Null, array(), t('Save layout'));

    $this->backdropGet('node/' . $this->test_node1->nid);
    $this->assertText(check_plain($block_title), 'Block shown and node ID matches.');

    $this->backdropGet('node/' . $second_post->nid);
    $this->assertNoText(check_plain($block_title), 'Block not shown when node ID does not match.');

    // Get the block UUID.
    layout_reset_caches();
    $layout = layout_load($layout_name);
    $block_uuid = end($layout->positions['sidebar']);

    // Add another condition to show this block only for a particular user ID.
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name . '/configure-block/editor/' . $block_uuid);
    $this->backdropPost(NULL, array(), t('Add visibility condition'));
    $edit = array(
      'condition' => 'user_uid',
    );
    $this->backdropPost(NULL, $edit, t('Load condition'));
    $edit = array(
      'entity_id' => $this->web_user->uid,
    );
    $this->backdropPost(NULL, $edit, t('Add visibility condition'));
    $this->backdropPost(NULL, array(), t('Update block'));
    $this->backdropPost(Null, array(), t('Save layout'));

    $this->backdropGet('node/' . $this->test_node1->nid);
    $this->assertNoText(check_plain($block_title), 'Block not shown when user ID does not match.');

    $this->backdropGet('node/' . $second_post->nid);
    $this->assertNoText(check_plain($block_title), 'Block not shown when user ID does not match.');

    // Login as a the web user and test that the block is now shown.
    $this->backdropLogin($this->web_user);

    $this->backdropGet('node/' . $this->test_node1->nid);
    $this->assertText(check_plain($block_title), 'Block shown when user ID and node ID matches.');

    $this->backdropGet('node/' . $second_post->nid);
    $this->assertNoText(check_plain($block_title), 'Block not shown when user ID and node ID does not match.');
  }

  /**
   * Test the support for contexts within conditions and blocks.
   */
  function testContexts() {
    // Make a new layout that creates a custom path with placeholders.
    $layout_title = $this->randomName();
    $layout_name = strtolower($layout_title);
    $layout_path = 'node/%/foo/%';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_path,
    );
    // Check the path first to populate available contexts.
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Check path'));

    // The first context (node) should be auto-detected and not require a value.
    $edit = array(
      'context[required][3][plugin]' => 'user',
    );
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Create layout'));

    // Add the test block that requires both node and user contexts.
    $this->clickLink(t('Add block'), 2);
    $this->assertText(t('A testing block for layouts with contexts.'));
    $this->clickLink(t('Layout bar block'));

    $this->assertNoField('contexts[my_node]', 'Node context selector not shown, only a single option.');
    $this->assertField('contexts[my_user]', 'User context selector is shown.');
    $this->backdropPost(NULL, array(), t('Add block'));

    // Record the UUID for the newly added block.
    $last_block = $this->xpath('(//*[@id="layout-content-form"]//*[contains(@class,:region)]//*[@data-block-id])[last()]', array(
      ':region' => 'l-content',
    ));
    $block_uuid = (string) $last_block[0]['data-block-id'];
    $block_edit_url = 'admin/structure/layouts/manage/' . $layout_name . '/configure-block/editor/' . $block_uuid;

    $this->backdropPost(NULL, array(), t('Save layout'));

    $this->backdropGet('node/' . $this->test_node1->nid . '/foo/' . $this->web_user->uid);
    $this->assertText(format_string('The user name is @name and the node title is @title', array('@name' => $this->web_user->name, '@title' => $this->test_node1->title)));

    // Modify the layout path to remove "node/", removing the auto-selection.
    $edit = array(
      'path' => 'foo/%/bar/%',
    );
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/configure', $edit, t('Check path'));
    $edit = array(
      'context[required][1][plugin]' => 'node',
    );
    $this->backdropPost(NULL, $edit, t('Save layout'));

    // Check that the block still works, even with the contexts changed.
    $this->backdropGet('foo/' . $this->test_node1->nid . '/bar/' . $this->web_user->uid);
    $this->assertText(format_string('The user name is @name and the node title is @title', array('@name' => $this->web_user->name, '@title' => $this->test_node1->title)));

    // Change the second context to be a node context. The user context should
    // still work, as it will use the current user context.
    $edit = array(
      'context[required][3][plugin]' => 'node',
    );
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/configure', $edit, t('Save layout'));

    // Now the page should show the current user instead of the one in the URL.
    $this->backdropGet('foo/' . $this->test_node1->nid . '/bar/' . $this->test_node2->nid);
    $this->assertText(format_string('The user name is @name and the node title is @title', array('@name' => $this->admin_user->name, '@title' => $this->test_node1->title)));

    // Change the "my_node" context to use the argument in position 3 instead
    // of position 1.
    $this->backdropGet($block_edit_url);
    $this->assertField('contexts[my_node]', 'Node context selector is shown.');
    $this->assertNoField('contexts[my_user]', 'User context selector is not shown, only the current user available.');

    $edit = array(
      'contexts[my_node]' => '3',
    );
    $this->backdropPost(NULL, $edit, t('Update block'));
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Now the second node should be used as the title in the page.
    $this->backdropGet('foo/' . $this->test_node1->nid .  '/bar/' . $this->test_node2->nid);
    $this->assertText(format_string('The user name is @name and the node title is @title', array('@name' => $this->admin_user->name, '@title' => $this->test_node2->title)));

    // Delete the layout to prevent it interfering with following tests.
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/delete', array(), t('Delete layout'));

    // Make a new layout that creates a custom path with a string pass-through.
    $layout_title = $this->randomName();
    $layout_name = strtolower($layout_title);
    $layout_path = 'passthrough/%';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'boxton',
      'path' => $layout_path,
    );
    // Create with the default context (string pass-through).
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Create layout'));

    // Add the test block that requires both node and user contexts.
    $this->clickLink(t('Add block'), 2);
    $this->clickLink(t('String pass-through test'));
    $this->backdropPost(NULL, array(), t('Add block'));
    $this->backdropPost(NULL, array(), t('Save layout'));

    $argument_string = 'argument-value-from-url';
    $this->backdropGet('passthrough/' . $argument_string);
    $this->assertText(format_string('The page argument is @string', array('@string' => $argument_string)));

    // Test custom contexts.
    // Make a new layout with a random path.
    $layout_title = $this->randomName();
    $layout_name = strtolower($layout_title);
    $layout_path = $layout_name;
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_path,
    );
    // Check the path first to populate available contexts.
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Check path'));

    $this->assertNoText(t('Node ID: 1'));
    $this->assertNoText(t('Node ID: 2'));
    $this->assertNoText(t('User account ID: 3'));

    $this->backdropPost('admin/structure/layouts/add', array(), t('Create layout'));

    // Check that the test block that requires both node and user contexts is
    // not available.
    $this->clickLink(t('Add block'), 2);
    $this->assertNoText(t('A testing block for layouts with contexts.'));

    // Test custom context validation.
    $edit = array();
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/configure', $edit, t('Add context'));

    // Add a custom node context to the layout.
    $edit = array(
      'context' => 'node',
    );
    $this->backdropPost(NULL, $edit, t('Load context'));
    $edit = array(
      'id' => '2',
    );
    $this->backdropPost(NULL, $edit, t('Add context'));

    $this->assertNoText(t('Node ID: 1'));
    $this->assertText(t('Node ID: 2'));
    $this->assertNoText(t('User account ID: 3'));

    // Test configuring custom contexts.
    // Saving a File context will fail since no files have been created yet.
    $this->backdropPost(NULL, array(), t('Configure'));
    $edit = array(
      'context' => 'file',
    );
    $this->backdropPost(NULL, $edit, t('Load context'));
    $edit = array(
      'id' => '1',
    );
    $this->backdropPost(NULL, $edit, t('Save context'));
    $error_message = t('The selected File does not exist.');
    $this->assertRaw($error_message);
    $edit = array(
      'id' => '',
    );
    $this->backdropPost(NULL, $edit, t('Save context'));
    $error_message = t('An ID is required.');
    $this->assertRaw($error_message);
    $this->backdropPost(NULL, $edit, t('Cancel'));

    $this->backdropPost(NULL, array(), t('Remove'));

    $this->assertNoText(t('Node ID: 1'));
    $this->assertNoText(t('Node ID: 2'));
    $this->assertNoText(t('User account ID: 3'));

    // Add a custom node context to the layout.
    $this->backdropPost(NULL, array(), t('Add context'));
    $edit = array(
      'context' => 'node',
    );
    $this->backdropPost(NULL, $edit, t('Load context'));
    $edit = array(
      'id' => '1',
    );
    $this->backdropPost(NULL, $edit, t('Add context'));

    $this->assertText(t('Node ID: 1'));
    $this->assertNoText(t('Node ID: 2'));
    $this->assertNoText(t('User account ID: 3'));

    $this->backdropPost(NULL, array(), t('Save layout'));

    // Check that the test block that requires both node and user contexts is
    // now available.
    $this->clickLink(t('Add block'), 2);
    $this->assertText(t('A testing block for layouts with contexts.'));
    $this->clickLink(t('Layout bar block'));

    $this->assertNoField('contexts[my_node]', 'Node context selector not shown, only a single option.');
    $this->assertNoField('contexts[my_user]', 'User context selector is not shown.');
    $this->backdropPost(NULL, array(), t('Add block'));

    // Record the UUID for the newly added block.
    $last_block = $this->xpath('(//*[@id="layout-content-form"]//*[contains(@class,:region)]//*[@data-block-id])[last()]', array(
      ':region' => 'l-content',
    ));
    $block_uuid = (string) $last_block[0]['data-block-id'];
    $block_edit_url = 'admin/structure/layouts/manage/' . $layout_name . '/configure-block/editor/' . $block_uuid;

    $this->backdropPost(NULL, array(), t('Save layout'));

    $this->backdropGet($layout_path);
    $this->assertText(format_string('The user name is @name and the node title is @title', array('@name' => $this->admin_user->name, '@title' => $this->test_node1->title)));

    // Add another custom node context to the layout.
    $edit = array();
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/configure', $edit, t('Add context'));
    $edit = array(
      'context' => 'node',
    );
    $this->backdropPost(NULL, $edit, t('Load context'));
    $edit = array(
      'id' => '2',
    );
    $this->backdropPost(NULL, $edit, t('Add context'));

    $this->assertText(t('Node ID: 1'));
    $this->assertText(t('Node ID: 2'));
    $this->assertNoText(t('User account ID: 3'));

    $this->backdropPost(NULL, array(), t('Save layout'));

    $this->backdropGet($block_edit_url);
    $this->assertField('contexts[my_node]', 'Node context selector is shown.');
    $this->assertNoField('contexts[my_user]', 'User context selector is not shown, only the current user available.');

    $edit = array(
      'contexts[my_node]' => 'node2',
    );
    $this->backdropPost(NULL, $edit, t('Update block'));
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Now the second node should be used as the title in the page.
    $this->backdropGet($layout_path);
    $this->assertText(format_string('The user name is @name and the node title is @title', array('@name' => $this->admin_user->name, '@title' => $this->test_node2->title)));

    // Add a custom user context to the layout.
    $edit = array();
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/configure', $edit, t('Add context'));
    $edit = array(
      'context' => 'user',
    );
    $this->backdropPost(NULL, $edit, t('Load context'));
    $edit = array(
      'id' => $this->web_user->uid,
    );
    $this->backdropPost(NULL, $edit, t('Add context'));

    $this->assertText(t('Node ID: 1'));
    $this->assertText(t('Node ID: 2'));
    $this->assertText(t('User account ID: 3'));

    $this->backdropPost(NULL, array(), t('Save layout'));

    $this->backdropGet($block_edit_url);
    $this->assertField('contexts[my_node]', 'Node context selector is shown.');
    $this->assertField('contexts[my_user]', 'User context selector is shown.');

    $edit = array(
      'contexts[my_user]' => 'user3',
    );
    $this->backdropPost(NULL, $edit, t('Update block'));
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Now the web user's name should be used as the title in the page.
    $this->backdropGet($layout_path);
    $this->assertText(format_string('The user name is @name and the node title is @title', array('@name' => $this->web_user->name, '@title' => $this->test_node2->title)));

    // Test that custom layouts and path layouts work together.
    $layout_title = $this->randomName();
    $layout_name = strtolower($layout_title);
    $layout_path = 'node/%';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_path,
    );
    // Check the path first to populate available contexts.
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Check path'));

    $this->assertNoText(t('Node ID: 1'));
    $this->backdropPost('admin/structure/layouts/add', array(), t('Create layout'));

    // Add a custom node context to the layout.
    $edit = array();
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/configure', $edit, t('Add context'));
    $edit = array(
      'context' => 'node',
    );
    $this->backdropPost(NULL, $edit, t('Load context'));
    $edit = array(
      'id' => '2',
    );
    $this->backdropPost(NULL, $edit, t('Add context'));

    $this->assertText(t('Position 2: node/%'));
    $this->assertText(t('Node ID: 2'));
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Check that the test block that requires both node and user contexts is
    // now available.
    $this->clickLink(t('Add block'), 2);
    $this->assertText(t('A testing block for layouts with contexts.'));
    $this->clickLink(t('Layout bar block'));

    $this->assertField('contexts[my_node]', 'Node context selector shown.');

    $edit = array(
      'contexts[my_node]' => 'node2',
    );
    $this->backdropPost(NULL, array(), t('Add block'));

    $this->backdropPost(NULL, array(), t('Save layout'));

    // Go to a node path and check that the block shows with the correct
    // content.
    $this->backdropGet('node/' . $this->test_node1->nid);
    $this->assertText(format_string('The user name is @name and the node title is @title', array('@name' => $this->admin_user->name, '@title' => $this->test_node2->title)));

  }

  /**
   * Test the overriding of paths.
   */
  function testOverriddenPaths() {
    // Make a new layout that creates a custom path with placeholders.
    $layout_name = 'node';
    $layout_title = 'Generic Node';
    $layout_path = 'node/%';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_path,
    );
    // Save directly without checking contexts.
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Create layout'));

    // Add a block to the sidebar.
    $this->clickLink(t('Add block'), 3);
    $this->clickLink(t('Node title test'));
    $this->backdropPost(NULL, array(), t('Add block'));

    // Record the UUID for the newly added block.
    $last_block = $this->xpath('(//*[contains(@class,:region)]//*[@data-block-id])[last()]', array(
      ':region' => 'l-sidebar',
    ));
    //$block_uuid = (string) $last_block[0]['data-block-id'];

    // Change the title type to custom.
    $edit = array(
      'title_display' => LAYOUT_TITLE_CUSTOM,
      'title' => 'Generic node title',
    );
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/edit-title/editor/title', $edit, t('Save configuration'));
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name, array(), t('Save layout'));

    // Visit the sample node page and check that the block is visible.
    $this->backdropGet('node/1');
    $block_element = $this->xpath('//*[contains(@class,:region)]//*[contains(@class,:block)]', array(
      ':region' => 'l-sidebar',
      ':block' => 'block-layout-test-test-node-title',
    ));
    $this->assertEqual(count($block_element), 1, 'The block is shown on the overridden path.');
    $this->assertText($this->test_node1->body[LANGUAGE_NONE][0]['value'], 'Current page content is still shown on the overridden path.');

    // Clone the layout and make a second overriding item at the same path.
    $clone_layout_name = 'node_post';
    $edit = array(
      'name' => $clone_layout_name,
      'title' => 'Post node',
    );
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/clone', $edit, t('Clone layout'));
    $this->assertText('You may now configure the cloned layout.', 'Layout cloned and landed on settings page.');
    $this->backdropPost(NULL, array(), t('Add visibility condition'));
    $edit = array(
      'condition' => 'node_type',
    );
    $this->backdropPost(NULL, $edit, t('Load condition'));
    $edit = array(
      'bundles[post]' => TRUE,
    );
    $this->backdropPost(NULL, $edit, t('Add visibility condition'));
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Record the UUID for the same block in this layout.
    $last_block = $this->xpath('(//*[contains(@class,:region)]//*[@data-block-id])[last()]', array(
      ':region' => 'l-sidebar',
    ));
    $block_uuid = (string) $last_block[0]['data-block-id'];

    $edit = array(
      'title_display' => LAYOUT_TITLE_BLOCK,
      'title_block' => $block_uuid,
    );
    $this->backdropPost('admin/structure/layouts/manage/' . $clone_layout_name . '/edit-title/editor/title', $edit, t('Save configuration'));
    $this->backdropPost('admin/structure/layouts/manage/' . $clone_layout_name, array(), t('Save layout'));

    $this->backdropGet('node/' . $this->test_node1->nid);
    $this->assertText('Node title', 'The node-type specific layout is used over the generic layout, and the page title is copied from the block title.');

    $this->backdropGet('node/' . $this->test_node2->nid);
    $this->assertText('Generic node title', 'The generic layout is used when there is not a more specific layout.');

    // Check the weights of the layout to ensure they have the correct defaults,
    // then rearrange and check the paths again.
    $this->backdropGet('admin/structure/layouts/reorder', array('query' => array('layouts' => array('node_post', 'node'))));
    $this->assertFieldByXPath('//select[@name="layouts[' . $clone_layout_name . '][weight]"]', '-1');
    $this->assertFieldByXPath('//select[@name="layouts[' . $layout_name . '][weight]"]', '0');

    $edit = array(
      'layouts[node_post][weight]' => 1,
    );
    $this->backdropPost(NULL, $edit, t('Save order'));

    // Now both layouts should use the generic layout.
    $this->backdropGet('node/' . $this->test_node1->nid);
    $this->assertText('Generic node title', 'The generic layout is used on post content.');
    $this->backdropGet('node/' . $this->test_node2->nid);
    $this->assertText('Generic node title', 'The generic layout is used on generic content.');

    // Delete these layouts and ensure it goes back to the default layout.
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/delete', array(), t('Delete layout'));
    $this->backdropPost('admin/structure/layouts/manage/' . $clone_layout_name . '/delete', array(), t('Delete layout'));

    $this->backdropGet('node/' . $this->test_node1->nid);
    $this->assertNoText('Generic node title', 'The generic node layout has been deleted.');
    $this->assertNoText('Post node title', 'The post node layout has been deleted.');
    $this->assertRaw(check_markup($this->test_node1->body[LANGUAGE_NONE][0]['value'], $this->test_node1->body[LANGUAGE_NONE][0]['format']), 'The default layout is now displaying the node.');
  }

  /**
   * Check special conditions around the main content block.
   */
  function testMainContentBlock() {
    // Make a new layout that overrides an existing path.
    $layout_title = $this->randomName();
    $layout_name = strtolower($layout_title);
    $layout_path = 'layout-test-path'; // Provided by layout_test.module.
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_path,
    );
    // Save directly without checking contexts.
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Create layout'));

    // Add the main content block to the sidebar.
    $this->clickLink(t('Add block'), 3);
    $this->clickLink(t('Main page content'));
    $this->backdropPost(NULL, array(), t('Add block'));

    // Record the UUID for the newly added block.
    $last_block = $this->xpath('(//*[@id="layout-edit-main"]//*[contains(@class,:region)]//*[@data-block-id])[last()]', array(
      ':region' => 'l-sidebar',
    ));
    $new_content_block_uuid = (string) $last_block[0]['data-block-id'];

    // Save the layout.
    $edit = array(
      'title_display' => LAYOUT_TITLE_CUSTOM,
      'title' => 'Generic node title',
    );
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/edit-title/editor/title', $edit, t('Save configuration'));
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name, array(), t('Save layout'));

    // Check that the validation prevented two main content blocks.
    $this->assertText(t('The "@block" block may only be added once to this layout.', array('@block' => t('Main page content'))));

    // Delete the previous content block.
    $old_content_block = $this->xpath('//*[@id="layout-edit-main"]//*[contains(@class,:region)]//*[@data-block-id]', array(
      ':region' => 'l-content',
    ));
    $old_content_block_uuid = (string) $old_content_block[0]['data-block-id'];
    $remove_link = $this->xpath('//*[@id="layout-edit-main"]//*[@data-block-id=:uuid]//a[contains(@class,"remove-block")]', array(
      ':uuid' => $old_content_block_uuid,
    ));
    $remove_url_parts = backdrop_parse_url($remove_link[0]['href']);
    $this->backdropGet($remove_url_parts['path'], $remove_url_parts);

    $this->backdropPost(NULL, array(), t('Save layout'));
    $this->assertText(t('Layout content saved.'), 'Layout saved successfully after removing old content block.');

    // Check the front-end that the content is shown in the sidebar. Note that
    // the main content block does *not* have any wrappers, so we check directly
    // for the content we expect at /node, which is a list of post tags.
    $this->backdropGet($layout_path);
    $front_end_content = $this->xpath('//*[contains(@class,:region)]/div[@id=:page-content]', array(
      ':region' => 'l-sidebar',
      ':page-content' => 'layout-test-page-content',
    ));
    $this->assertEqual(count($front_end_content), 1, 'Main content shown in sidebar after moving main content block.');

    // Now remove the second main content block, which should be allowed even
    // though it is potentially a bad idea.
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name);
    $remove_link = $this->xpath('//*[@data-block-id=:uuid]//a[contains(@class,"remove-block")]', array(
      ':uuid' => $new_content_block_uuid,
    ));
    $remove_url_parts = backdrop_parse_url($remove_link[0]['href']);
    $this->backdropGet($remove_url_parts['path'], $remove_url_parts);

    $this->backdropPost(NULL, array(), t('Save layout'));
    $this->assertText(t('Layout content saved.'));

    // Check that the main content block is no longer displayed at all.
    $this->backdropGet($layout_path);
    $front_end_content = $this->xpath('//*[@id=:id]', array(
      ':id' => 'layout-test-page-content',
    ));
    $this->assertEqual(count($front_end_content), 0, 'Main content is no longer shown at all.');

    // Edit the default layout and ensure that the main content block cannot be
    // removed.
    $this->backdropGet('admin/structure/layouts/manage/default');
    $default_content_block = $this->xpath('//*[@id="layout-edit-main"]//*[contains(@class,:region)]//*[@data-block-id]', array(
      ':region' => 'l-content',
    ));
    $default_content_block_uuid = (string) $default_content_block[0]['data-block-id'];
    $remove_link = $this->xpath('//*[@data-block-id=:uuid]//a[contains(@class,"remove-block")]', array(
      ':uuid' => $default_content_block_uuid,
    ));
    $remove_url_parts = backdrop_parse_url($remove_link[0]['href']);
    $this->backdropGet($remove_url_parts['path'], $remove_url_parts);

    $this->backdropPost(NULL, array(), t('Save layout'));
    $this->assertText(t('The "@block" block must be added to this layout.', array('@block' => t('Main page content'))));

    // Cancel the changes to the default layout.
    $this->backdropPost(NULL, array(), t('Cancel'));

    // Delete the previous test layout.
    $layout = layout_load($layout_name);
    $layout->delete();

  }

  /**
   * Tests conditions and menu item navigation.
   */
  function testLayoutMenuItems() {
    $layout_name = strtolower($this->randomName());
    $layout_path = $layout_name . '/' . strtolower($this->randomName());
    $edit = array(
      'name' => $layout_name,
      'title' => $layout_name,
      'path' => $layout_path,
      'layout_template' => 'moscone_flipped',
    );
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Create layout'));

    $edit = array(
      'title_display' => LAYOUT_TITLE_CUSTOM,
      'title' => 'Menu item test',
    );
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/edit-title/editor/title', $edit, t('Save configuration'));
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name, array(), t('Save layout'));
    $this->backdropGet($layout_path);
    $this->assertResponse(200, 'Layout displayed at the given path.');

    // At this point there should only be a single custom path, so there should
    // only be a single "Menu settings" link on the listing page. If other
    // layouts are added in tests in this class, be sure they are deleted at the
    // end of the test.
    $this->backdropGet('admin/structure/layouts');
    $this->clickLink(t('Menu settings'));
    $this->assertUrl('admin/structure/layouts/menu/' . $layout_name, array(), 'Menu settings link goes to the correct layout menu item settings.');

    // Set as a normal menu item.
    $menu_title = $this->randomName();
    $edit = array(
      'menu[type]' => 'normal',
      'menu[title]' => $menu_title,
      'menu[weight]' => 1,
    );
    $this->backdropPost(NULL, $edit, t('Save menu settings'));

    // Check that the link is available on the homepage (via the main menu).
    $this->backdropGet('<front>');
    $this->assertLink($menu_title, 0, 'Menu link shown on the homepage.');

    $this->backdropPost('admin/structure/layouts/menu/' . $layout_name, array(), t('Add visibility condition'));
    $edit = array(
      'condition' => 'path',
    );
    $this->backdropPost(NULL, $edit, t('Load condition'));

    // This condition will make the menu item available on the home page, and
    // on the layout path itself. Note that the "layout_name" is the first part
    // of the path, so we allow access on it and its children paths.
    $edit = array(
      'paths' => "<front>\n$layout_name*\n",
    );
    $this->backdropPost(NULL, $edit, t('Add visibility condition'));
    $this->backdropPost(NULL, array(), t('Save menu settings'));

    $this->backdropGet('<front>');
    $this->assertLink($menu_title, 0, 'Menu link found on the homepage.');
    $this->backdropGet('node/' . $this->test_node1->nid);
    $this->assertNoLink($menu_title, 'Menu link not shown when conditions prevent it.');
    $this->backdropGet($layout_path);
    $this->assertLink($menu_title, 0, 'Menu link shown on the layout page itself.');

    // Change the menu item to a default local tab.
    $menu_tab_title = $this->randomName();
    $edit = array(
      'menu[type]' => 'default tab',
      'menu[title]' => $menu_tab_title,
      'menu[weight]' => 1,
      'menu[parent][type]' => 'normal',
      'menu[parent][title]' => $menu_title,
    );
    $this->backdropPost('admin/structure/layouts/menu/' . $layout_name, $edit, t('Save menu settings'));

    // Ensure that the parent item link still shows up.
    $this->backdropGet('<front>');
    $this->assertLink($menu_title, 0, 'Menu link found on the homepage when registered as a parent menu item link.');
    $this->clickLink($menu_title);
    $this->assertUrl($layout_name, array(), 'Menu link uses the parent path, without the default tab portion of the path.');

    // Create another layout to use as a second tab.
    $tab_layout_name = strtolower($this->randomName());
    $tab_layout_path = $layout_name . '/' . strtolower($this->randomName());
    $edit = array(
      'name' => $tab_layout_name,
      'title' => $tab_layout_name,
      'path' => $tab_layout_path,
      'layout_template' => 'moscone_flipped',
    );
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Create layout'));

    $tab_layout_title = $this->randomName();
    $edit = array(
      'menu[type]' => 'tab',
      'menu[title]' => $tab_layout_title,
      'menu[weight]' => 1,
    );
    $this->backdropPost('admin/structure/layouts/menu/' . $tab_layout_name, $edit, t('Save menu settings'));

    // On the "parent" path, we should now see the default tab and this new tab.
    $this->backdropGet($layout_name);
    $active_tab = $this->xpath('//ul[contains(@class,"tabs")]/li[contains(@class,"active")]/a[@href=:path]', array(
      ':path' => url($layout_name),
    ));
    $this->assertEqual(count($active_tab), 1, 'The menu default tab for a layout shows up properly.');
    $second_tab = $this->xpath('//ul[contains(@class,"tabs")]/li/a[@href=:path]', array(
      ':path' => url($tab_layout_path),
    ));
    $this->assertEqual(count($second_tab), 1, 'The normal menu tab for a layout shows up properly.');

    // Make a 3rd layout at a yet deeper path, creating another tab via its parent.
    $subtab_layout_name = strtolower($this->randomName());
    $subtab_layout_path = $tab_layout_path . '/' . strtolower($this->randomName());
    $subtab_layout_path_last = $subtab_layout_path . '/' . strtolower($this->randomName());
    $edit = array(
      'name' => $subtab_layout_name,
      'title' => $subtab_layout_name,
      'path' => $subtab_layout_path_last,
      'layout_template' => 'moscone_flipped',
    );
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Create layout'));

    $subtab_layout_title = $this->randomName();
    $subsubtab_layout_title = $this->randomName();
    $edit = array(
      'menu[type]' => 'default tab',
      'menu[title]' => $subsubtab_layout_title,
      'menu[weight]' => 0,
      'menu[parent][type]' => 'tab',
      'menu[parent][title]' => $subtab_layout_title,
    );
    $this->backdropPost('admin/structure/layouts/menu/' . $subtab_layout_name, $edit, t('Save menu settings'));

    // Reuse the "tab" item to be a child of the subtab.
    $subtab_layout_path_last = $subtab_layout_path . '/' . strtolower($this->randomName());
    $edit = array(
      'path' => $subtab_layout_path_last,
    );
    $this->backdropPost('admin/structure/layouts/manage/' . $tab_layout_name . '/configure', $edit, t('Save layout'));

    // Now we should have an active tab with subtabs, the first one is active.
    $this->backdropGet($subtab_layout_path);
    $active_tab = $this->xpath('//ul[contains(@class,"tabs")][contains(@class,"secondary")]/li[contains(@class,"active")]/a[@href=:path]', array(
      ':path' => url($subtab_layout_path),
    ));
    $this->assertEqual(count($active_tab), 1, 'The sub-tab default menu item for a layout shows up properly.');
    $second_tab = $this->xpath('//ul[contains(@class,"tabs")][contains(@class,"secondary")]/li/a[@href=:path]', array(
      ':path' => url($subtab_layout_path_last),
    ));
    $this->assertEqual(count($second_tab), 1, 'The sub-tab menu item for a layout shows up properly.');

    // Delete all the generated layouts.
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/delete', array(), t('Delete layout'));
    $this->backdropPost('admin/structure/layouts/manage/' . $tab_layout_name . '/delete', array(), t('Delete layout'));
    $this->backdropPost('admin/structure/layouts/manage/' . $subtab_layout_name . '/delete', array(), t('Delete layout'));

    // Check that both layouts and menu items are deleted.
    layout_reset_caches();
    $this->assertFalse(layout_load($layout_name), 'Base layout deleted.');
    $this->assertFalse(layout_load($tab_layout_name), 'Tab layout deleted.');
    $this->assertFalse(layout_load($subtab_layout_name), 'Sub-tab layout deleted.');
    $this->assertFalse(layout_menu_item_load($layout_name), 'Base menu item deleted.');
    $this->assertFalse(layout_menu_item_load($tab_layout_name), 'Tab menu item deleted.');
    $this->assertFalse(layout_menu_item_load($subtab_layout_name), 'Sub-tab menu item deleted.');
  }

  /**
   * Test region styles.
   */
  function testRegionStyles() {
    $this->backdropGet('admin/structure/layouts/manage/default/configure-region/editor/header');
    $edit = array(
      'element' => 'aside',
      'classes' => 'new-test-class',
    );
    $this->backdropPost(NULL, $edit, t('Save configuration'));
    $this->backdropGet('admin/structure/layouts/manage/default');
    $this->backdropPost(NULL, array(), t('Save layout'));

    $this->backdropGet('node');
    $style_exists = $this->xpath('//header[contains(@class,"l-header")]//aside[contains(@class,"new-test-class")]');
    $this->assertTrue($style_exists, 'Style exists on header div.');
  }

  /**
   * Ensure that reassignment of menu items works when deleting layouts.
   */
  function testMenuItemReassignment() {
    // Create a layout that will generate a menu item automatically.
    $layout_name = strtolower($this->randomName());
    $layout_path = $layout_name;
    $edit = array(
      'name' => $layout_name,
      'title' => $layout_name,
      'path' => $layout_path,
      'layout_template' => 'moscone_flipped',
    );
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Create layout'));

    // Check that the layout and menu item config are generated.
    $result = config_get('layout.layout.' . $layout_name, 'name');
    $this->assertEqual($result, $layout_name, 'Config created for new layout.');
    $result = config_get('layout.menu_item.' . $layout_name, 'name');
    $this->assertEqual($result, $layout_name, 'Config created for new layout menu item.');

    $layout_title = $this->randomName();
    $edit = array(
      'menu[type]' => 'normal',
      'menu[title]' => $layout_title,
      'menu[weight]' => 1,
    );
    $this->backdropPost('admin/structure/layouts/menu/' . $layout_name, $edit, t('Save menu settings'));

    $this->backdropGet('<front>');
    $this->assertLink(check_plain($layout_title), 0, 'Menu link displayed on homepage.');

    // Create another layout at the same path.
    $second_layout_name = strtolower($this->randomName());
    $edit = array(
      'name' => $second_layout_name,
      'title' => $second_layout_name,
      'path' => $layout_path,
      'layout_template' => 'moscone_flipped',
    );
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Create layout'));

    // Check that the layout config is created, but not a menu item, since it
    // will reuse the existing menu item.
    $result = config_get('layout.layout.' . $second_layout_name, 'name');
    $this->assertEqual($result, $second_layout_name, 'Config created for second layout.');
    $result = config_get('layout.menu_item.' . $second_layout_name, 'name');
    $this->assertNull($result, 'No config created for second layout menu item (reuses the existing one).');

    // Delete the first layout and check that the menu item is transferred.
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/delete', array(), t('Delete layout'));

    layout_reset_caches();
    $this->assertFalse(layout_load($layout_name), 'Base layout deleted.');
    $this->assertFalse(layout_menu_item_load($layout_name), 'Base layout menu item deleted.');

    $menu_item = layout_menu_item_load($second_layout_name);
    $this->assertTrue($menu_item, 'Menu item transferred to second layout.');
    $this->assertEqual($menu_item->name, $second_layout_name, 'Menu name updated.');
    $this->assertEqual($menu_item->path, $layout_path, 'Menu path copied correctly.');

    $this->backdropGet('<front>');
    $this->assertLink(check_plain($layout_title), 0, 'Previous menu item link still displayed after deleting first layout.');

    // Delete the second layout
    $this->backdropPost('admin/structure/layouts/manage/' . $second_layout_name . '/delete', array(), t('Delete layout'));
    $this->backdropGet('<front>');
    $this->assertNoLink(check_plain($layout_title), 'Menu item no longer present after deleting last layout.');

    $result = config_get('layout.menu_item.' . $second_layout_name, 'name');
    $this->assertNull($result, 'Config for second menu item has been deleted.');
  }

  /**
   * Tests switching between different layouts, ensuring block copying.
   */
  function testLayoutChange() {
    // Add blocks to the default layout for checking.
    $default_layout = layout_load('default');
    $default_layout->addBlock('layout_test', 'foo', 'content');
    $default_layout->addBlock('layout_test', 'foo', 'sidebar');
    $default_layout->save();

    // Create a layout should inherit all the blocks. Since the default layout
    // also two columns, all blocks should be copied over.
    $layout_name = strtolower($this->randomName());
    $layout_path = $layout_name;
    $edit = array(
      'name' => $layout_name,
      'title' => $layout_name,
      'path' => $layout_path,
      'layout_template' => 'moscone_flipped',
    );
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Create layout'));

    layout_reset_caches();
    $layout = layout_load($layout_name);
    $this->assertBlocksMatch($layout, $default_layout);

    // Change the layout to the test layout, which has identical regions.
    $edit = array(
      'layout_template' => 'layout_test_layout',
    );
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/configure', $edit, t('Save layout'));

    layout_reset_caches();
    $layout = layout_load($layout_name);
    $this->assertBlocksMatch($layout, $default_layout);

    // Change the layout to the boxton layout, eliminating the sidebar.
    $edit = array(
      'layout_template' => 'boxton',
    );
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/configure', $edit, t('Save layout'));

    $orphaned_uuids = $default_layout->positions['sidebar'];
    $this->orphaned_blocks = !empty($orphaned_uuids);
    layout_reset_caches();
    $layout = layout_load($layout_name);
    $this->assertBlocksMatch($layout, $default_layout);
    $this->assertFalse(isset($layout->positions['sidebar']), 'Sidebar region blocks moved out when changing layout to single column.');

    $intersection = array_intersect(array_keys($layout->content), $orphaned_uuids);
    $this->assertEqual($intersection, array(), 'The sidebar blocks have been removed from the layout content array.');
    // Check that the sidebar and content region blocks in the old layout are
    // the same number of blocks in the content region of the new layout.
    $default_layout_sidebar_content_regions_count = count($default_layout->positions['sidebar']) + count($default_layout->positions['content']);
    $new_content_region_count = count($layout->positions['content']);
    // Count the system main block separately since it doesn't exist in the
    // new layout.
    if ($default_layout->positions['content'][0] == 'default') {
      $new_content_region_count++;
    }
    $this->assertTrue($default_layout_sidebar_content_regions_count == $new_content_region_count, 'The blocks from the Sidebar and Default regions in the old layout all exist in the Default region of the new layout.');
    // Make sure the moved block is part of the module we expect.
    $moved_block_uuid = $layout->positions['content'][1];
    $moved_block = $layout->content[$moved_block_uuid];
    $this->assertTrue($moved_block->module == 'layout_test', 'The moved block is from the layout_test module.');
  }

  /**
   * Tests current user custom field block
   */
  function testCurrentUser() {
    $field_name = 'field_field1';

    $field_info = array('field_name' => $field_name, 'type' => 'text');
    $field = field_create_field($field_info);
    $instance = array(
      'field_name' => $field_name,
      'entity_type' => 'user',
      'bundle' => 'user',
      'label' => 'Field1',
    );
    field_create_instance($instance);

    $this->backdropGet('admin/structure/layouts');
    $this->clickLink(t('Add layout'));

    // Create a new layout at a new path.
    $layout_title = $this->randomName();
    $layout_name = strtolower($layout_title);
    $layout_url = 'layout-test-path';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_url,
    );
    $this->backdropPost(NULL, $edit, t('Create layout'));

    // We should be taken to the layout content page next.
    $this->assertText(t('Layout created. Blocks may now be added to this layout.'));

    // Add a block to the sidebar.
    $this->clickLink(t('Add block'), 3);
    $this->clickLink(t('Field: Field1 (field_field1)'));
    $edit = array();
    $this->backdropPost(NULL, $edit, t('Add block'));

    // Save the layout.
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Set a value for field1 for the current user.
    $field_value = 'the expected value';

    $this->backdropGet('user/' . $this->admin_user->uid . '/edit');
    $this->assertText($instance['label'], 'The field appears on user edit form');
    $edit = array();
    $edit[$field_name . '[' . LANGUAGE_NONE . '][0][value]'] = $field_value;
    $this->backdropPost(NULL, $edit, t('Save'));

    // Go to the new layout and check that the field value is displayed.
    $this->backdropGet($layout_url);
    $this->assertText($field_value, 'The field appears on the new layout page.');
  }

  /**
   * Tests Taxonomy contexts within layouts.
   */
  function testTaxonomyContext() {
    module_enable(array('taxonomy'));

    // Create a default vocabulary named "Tags", enabled for the 'post' content type.
    $vocabulary = new TaxonomyVocabulary(array(
      'name' => 'Tags',
      'description' => 'Use tags to group posts on similar topics into categories.',
      'machine_name' => 'tags',
    ));
    taxonomy_vocabulary_save($vocabulary);

    $field = array(
      'field_name' => 'field_' . $vocabulary->machine_name,
      'type' => 'taxonomy_term_reference',
      // Set cardinality to unlimited for tagging.
      'cardinality' => FIELD_CARDINALITY_UNLIMITED,
      'settings' => array(
        'allowed_values' => array(
          array(
            'vocabulary' => $vocabulary->machine_name,
            'parent' => 0,
          ),
        ),
      ),
    );
    field_create_field($field);

    $instance = array(
      'field_name' => 'field_' . $vocabulary->machine_name,
      'entity_type' => 'node',
      'label' => 'Tags',
      'bundle' => 'post',
      'widget' => array(
        'type' => 'taxonomy_autocomplete',
      ),
    );
    field_create_instance($instance);

    // Make a new layout that creates a custom path with placeholders.
    $layout_title = $this->randomName();
    $layout_name = strtolower($layout_title);
    $layout_path = 'taxonomy/term/%';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_path,
    );
    // Check the path first to populate available contexts.
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Check path'));

    // Try to add a condition to the layout itself to only show on the Tag
    // vocabulary.
    $this->backdropPost(NULL, array(), t('Add visibility condition'));

    $this->backdropPost(NULL, array('condition' => 'taxonomy_term_vocabulary'), t('Load condition'));
    $this->backdropPost(NULL, array('bundles[tags]' => TRUE), t('Add visibility condition'));
    $this->backdropPost(NULL, array(), t('Create layout'));

    $this->assertText(t('Layout created. Blocks may now be added to this layout.'));
  }

  /**
   * Check that all the blocks in $layout match those in $copied_from_layout.
   */
  protected function assertBlocksMatch($layout, $copied_from_layout, $orphaned_uuids = array()) {
    $layout_info = layout_get_layout_template_info($layout->layout_template);
    $default_region = $layout_info['default region'];
    foreach ($layout->positions as $region_name => $blocks) {
      // Don't compare if it's the default region since orphaned blocks might
      // get reassigned here, which throws off the numbers.
      if ($this->orphaned_blocks && $region_name == $default_region) {
        $this->orphaned_blocks = FALSE;
        continue;
      }
      if (isset($copied_from_layout->positions[$region_name])) {
        $blocks_match = TRUE;
        $content_block_offset = 0;
        foreach ($blocks as $position => $block_uuid) {
          $copied_block_uuid = $copied_from_layout->positions[$region_name][$position + $content_block_offset];
          $copied_block = $copied_from_layout->content[$copied_block_uuid];

          // If this is the system main block, it may not exist in the new
          // layout if the new layout creates a new path instead of overriding
          // an existing one. If we encounter the default block, allow it to be
          // skipped.
          if ($copied_block->module === 'system' && $copied_block->delta === 'main' && isset($layout->menu_item)) {
            $content_block_offset = 1;
            $copied_block_uuid = $copied_from_layout->positions[$region_name][$position + $content_block_offset];
            $copied_block = $copied_from_layout->content[$copied_block_uuid];
          }

          $block = $layout->content[$block_uuid];
          if ($block->module !== $copied_block->module || $block->delta !== $copied_block->delta) {
            $blocks_match = FALSE;
          }
        }
        $this->assertTrue($blocks_match, format_string('Blocks copied from @layout1 into @layout2 match in the @region region.', array('@layout1' => $copied_from_layout->layout_template, '@layout2' => $layout->layout_template, '@region' => $region_name)));
      }
      else {
        debug(format_string('The new layout @layout does not have the region @region, so no blocks are being copied.', array('@layout' => $layout->layout_template, '@region' => $region_name)));
      }
    }
  }

  /**
   * Tests layout_modules_uninstalled().
   */
  function testBlockUninstall() {
    $this->backdropGet('admin/structure/layouts');
    $this->clickLink(t('Add layout'));

    // Create a new layout at a new path.
    $layout_title = $this->randomName();
    $layout_name = strtolower($layout_title);
    $layout_url = 'layout-test-path';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_url,
    );
    $this->backdropPost(NULL, $edit, t('Create layout'));

    // Add a block to the sidebar.
    $this->clickLink(t('Add block'), 3);
    $this->assertText(t('A testing block for layouts.'));
    $this->clickLink(t('Layout foo block'));
    $edit = array(
      'block_settings[count]' => 5,
    );
    $this->backdropPost(NULL, $edit, t('Add block'));

    // Save the layout.
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Check that the new block is on the edit page.
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name);
    $this->assertText(t('A testing block for layouts.'));

    // Add the same block to the default layout.
    $this->backdropGet('admin/structure/layouts/manage/default');

    // Add the same block to the sidebar.
    $this->clickLink(t('Add block'), 3);
    $this->assertText(t('A testing block for layouts.'));
    $this->clickLink(t('Layout foo block'));
    $edit = array(
      'block_settings[count]' => 5,
    );
    $this->backdropPost(NULL, $edit, t('Add block'));

    // Save the layout.
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Check that the new block is on the edit page.
    $this->backdropGet('admin/structure/layouts/manage/default');
    $this->assertText(t('A testing block for layouts.'));

    // Uninstall the module providing the block.
    module_disable(array('layout_test'));
    backdrop_uninstall_modules(array('layout_test'));
    $this->assertFalse(module_exists('layout_test'), 'The module has been uninstalled.');

    // Check that the new block is on none of the layout edit pages.
    $this->backdropGet('admin/structure/layouts/manage/default');
    $this->assertNoText(t('A testing block for layouts.'));
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name);
    $this->assertNoText(t('A testing block for layouts.'));
  }
}

/**
 * Tests the blocks title, content, and display settings.
 */
class LayoutBlockTest extends BackdropWebTestCase {
    protected $profile = 'minimal';
    protected $admin_user;

    function setUp() {
      parent::setUp(array('file', 'block'));
      // Create content types for testing.
      $this->backdropCreateContentType(array('type' => 'page', 'name' => 'Page'));

      // Create and login admin user.
      $this->admin_user = $this->backdropCreateUser(array(
        'access administration pages',
        'administer layouts',
        'access user profiles',
        'edit any page content',
        'administer nodes',
      ));
      $this->backdropLogin($this->admin_user);
    }

  /**
   * Test Custom Text blocks.
   */
  function testCustomTextBlocks() {
    $this->backdropGet('admin/structure/layouts/manage/default');
    $block_title_1 = 'Title of block one';
    $block_content_1 = 'Content of block one';
    $block_content_2 = 'Content of block two';
    $block_title_3 = 'Title of block three';

    // Add a Custom Text block to the sidebar.
    $this->clickLink(t('Add block'), 3);
    $this->clickLink(t('Custom block'));
    $edit = array(
      'title' => $block_title_1,
      'content[value]' => $block_content_1,
    );
    $this->backdropPost(NULL, $edit, t('Add block'));
    $first_block = $this->xpath('(//*[@id="layout-content-form"]//*[contains(@class,:region)]//*[@data-block-id])[last()]', array(
      ':region' => 'l-sidebar',
    ));
    $first_block_uuid = (string) $first_block[0]['data-block-id'];

    // Add a Custom Text block without subject.
    $this->clickLink(t('Add block'), 3);
    $this->clickLink(t('Custom block'));
    $edit = array(
      'content[value]' => $block_content_2,
    );
    $this->backdropPost(NULL, $edit, t('Add block'));

    // Add a Custom Text block without content.
    $this->clickLink(t('Add block'), 3);
    $this->clickLink(t('Custom block'));
    $edit = array(
      'title' => $block_title_3,
    );
    $this->backdropPost(NULL, $edit, t('Add block'));

    // Save the layout.
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Go to the home page and check that the text shows.
    $this->backdropGet('<front>');

    $elements = $this->xpath('//*[contains(@class,:region)]//*[contains(@class,:block)]', array(
      ':region' => 'l-sidebar',
      ':block' => 'block-layout-custom-block',
    ));
    $this->assertEqual(count($elements), 2, 'Two custom text blocks were found in the sidebar.');

    // Both title and content are visible for block one.
    $this->assertText($block_title_1);
    $this->assertText($block_content_1);

    // Block two content is visible.
    $this->assertText($block_content_2);
    // Block two has no title.
    $title_2 = $this->xpath('(//div[contains(@class, "block-layout-text-block")])[2]//h2');
    $this->assertFalse($title_2);

    // Block three doesn't appear.
    $this->assertNoText($block_title_3);
    $block_3 = $this->xpath('(//div[contains(@class, "block-layout-text-block")])[3]');
    $this->assertFalse($block_3);

    // Convert the first block from being a text block into a custom block.
    module_enable(array('block'));
    $edit = array(
      'reusable' => TRUE,
    );
    $this->backdropPost('admin/structure/layouts/manage/default/configure-block/editor/' . $first_block_uuid, $edit, t('Update block'));
    $this->assertText(t('Admin label is required when making a block reusable.'));
    $edit['admin_label'] = 'My custom block label';
    $this->backdropPost(NULL, $edit, t('Update block'));
    $this->assertText(t('An internal name is required when making a block reusable.'));
    $edit['delta'] = 'my_custom_block';
    $this->backdropPost(NULL, $edit, t('Update block'));

    // Now back on the layout main page. Check the new admin label is shown.
    $this->assertText('My custom block label');
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Check that the new block.module provided configuration form is now used.
    $this->backdropGet('admin/structure/layouts/manage/default/configure-block/editor/' . $first_block_uuid);
    // The reusable checkbox should exist but be disabled.
    $this->assertFieldByXPath('//input[@name="block_settings[reusable]"][@disabled="disabled"]');

    // Go to the home page and check that the converted block shows up.
    $this->backdropGet('<front>');
    $custom_block = $this->xpath('//*[contains(@class,:region)]//*[contains(@class,:block)]', array(
      ':region' => 'l-sidebar',
      ':block' => 'block-block-my-custom-block',
    ));
    $this->assertEqual(count($custom_block), 1, 'Converted custom block found.');
    if (count($custom_block)) {
      $custom_block_title = $custom_block[0]->xpath('.//*[contains(@class, "block-title")]');
      $custom_block_content = $custom_block[0]->xpath('.//*[contains(@class, "block-content")]/p');
      $this->assertEqual((string) $custom_block_title[0], $block_title_1, 'Converted custom block title found.');
      $this->assertEqual((string) $custom_block_content[0], $block_content_1, 'Converted custom block content.');
    }
  }

  /**
   * Test Hero blocks.
   */
  function testHeroBlocks() {
    $hero_title_1 = 'Wonderwoman';
    $hero_content_1 = 'Youth is your greatest weapon, your greatest tool.';
    $hero_title_2 = 'Black Widow';
    $hero_content_2 = "This isnt gonna end well...";

    // Create some sample images.
    $good_image = imagecreate(2400, 400);
    $good_filename = 'good.jpg';
    $good_realpath_filename = backdrop_realpath('temporary://' . $good_filename);
    imagejpeg($good_image, $good_realpath_filename);

    $bad_image =  imagecreate(1024, 260);
    imagecolorallocate($bad_image, 255, 0, 0); // Red image.
    $bad_filename = 'bad.jpg';
    $bad_realpath_filename = backdrop_realpath('temporary://' . $bad_filename);
    imagejpeg($bad_image, $bad_realpath_filename);

    $good_image2 = imagecreate(2400, 400);
    $good_filename2 = 'good2.jpg';
    $good_realpath_filename2 = backdrop_realpath('temporary://' . $good_filename2);
    imagejpeg($good_image2, $good_realpath_filename2);

    $this->backdropGet('admin/structure/layouts/manage/default');

    // Block 1: Add a hero block with no image to the content area.
    $this->clickLink(t('Add block'), 2);
    $this->clickLink(t('Hero block'));
    $edit = array(
      'title' => $hero_title_1,
      'content[value]' => $hero_content_1,
    );
    $this->backdropPost(NULL, $edit, t('Add block'));

    // Block 2: Add a hero block with only content and an image.
    $this->clickLink(t('Add block'), 2);
    $this->clickLink(t('Hero block'));
    $edit = array(
      'content[value]' => $hero_content_2,
      'files[image]' => $good_realpath_filename,
    );
    $this->backdropPost(NULL, $edit, t('Add block'));

    // Block 3: Add a hero block with only an image.
    $this->clickLink(t('Add block'), 2);
    $this->clickLink(t('Hero block'));

    // Confirm a too-small background image fails validation.
    $edit = array(
      'files[image]' => $bad_realpath_filename,
    );
    $this->backdropPost(NULL, $edit, t('Add block'));
    $error_message = t('The specified file %name could not be uploaded.', array('%name' => $bad_filename));
    $error_message .= ' ' . t('The image is too small; the minimum dimensions are %dimensions pixels.', array('%dimensions' => '1200x300'));
    $this->assertRaw($error_message);

    // Resubmit using the good image.
    $edit['files[image]'] = $good_realpath_filename2;
    $this->backdropPost(NULL, $edit, t('Add block'));

    // Save the layout.
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Go to the user page and check for all hero blocks.
    $this->backdropGet('user');

    // Get all hero blocks on the user page and confirm the correct number.
    $elements = $this->xpath('//*[contains(@class,:region)]//*[contains(@class,:block)]', array(
      ':region' => 'l-content',
      ':block' => 'block-layout-hero',
    ));
    $this->assertEqual(count($elements), 3, 'Three hero blocks were found in the content area.');

    // Get all the hero block elements for testing. Order matters here.
    $elements = $this->xpath('(//div[contains(@class, "block-layout-hero")])');

    // Block 1: Confirm both title and content are visible.
    $this->assertText($hero_title_1);
    $this->assertText($hero_content_1);
    // Block 1: Confirm handy `block-hero-no-image` class is present.
    $classes_1 = (string)$elements[0]['class'];
    $this->assertTrue(strstr($classes_1, 'block-hero-no-image'));
    // Block 1: Confirm that no background image is present.
    $this->assertNull($elements[0]['style'], 'No image present for 1st hero block.');

    // Block 2: no title present.
    $title_2 = $elements[1]->xpath('.//h2');
    $this->assertIdentical($title_2, array(), 'No title present for 2nd hero block.');
    // Block 2: content is visible.
    $this->assertText($hero_content_2);
    // Block 2: Confirm handy `block-hero-image` class is present.
    $classes_2 = (string)$elements[1]['class'];
    $this->assertTrue(strstr($classes_2, 'block-hero-image'));
    // Block 2: Background image present.
    $style_2 = (string)$elements[1]['style'];
    $this->assertTrue(strstr($style_2, $good_filename), 'Image present for 2nd hero block.');

    // Block 3: no title present.
    $title_3 = $elements[2]->xpath('.//h2');
    $this->assertIdentical($title_3, array(), 'No title present for 3rd hero block.');
    // Block 3: no content present.
    $content_3_element = $elements[2]->xpath('.//div[contains(@class, "block-content")]');
    $this->assertEqual(count($content_3_element), 1, '3rd hero block content found.');
    // Extract the content.
    $content_3 = (string)$content_3_element[0];

    // We inserted an HTML non-breaking space, but SimpleXML will return a
    // unicode non-breaking space (\u00a0). PHP <7.0.0 does not have native
    // unicode strings, so we encode as JSON which will encode the character.
    // In PHP 7 this could be represented as $content_3 === "\u00a0".
    $unicode_nbsp = trim(json_encode(trim($content_3)), '"');
    $this->assertEqual($unicode_nbsp, '\u00a0', '3rd hero block contains only a non-breaking space.');

    // Background image present for block three.
    $style_3 = (string)$elements[2]['style'];
    $this->assertTrue(strstr($style_3, $good_filename2), 'Image present for 3rd hero block.');
  }

  /**
   * Test Page component blocks.
   */
  function testPageComponentBlocks() {
    // Create a node page.
    $page_node = $this->backdropCreateNode(array(
      'type' => 'page',
      'title' => "Test node title",
    ));

    // Check page title exists.
    $this->backdropGet('node/1');

    $page_title = $this->xpath('(//div[contains(@class, "l-page-title")])//h1');
    $this->assertEqual(count($page_title), 1, 'The page title was found.');
    $this->assertEqual((string) $page_title[0], 'Test node title');

    $this->backdropGet('admin/structure/layouts/manage/default');

    // Add a Page title block to the header.
    $this->clickLink(t('Add block'), 0);
    $this->clickLink(t('Page title'));
    $this->backdropPost(NULL, array(), t('Add block'));
    $title_block = $this->xpath('(//*[@id="layout-content-form"]//*[contains(@class,:region)]//*[@data-block-id])[last()]', array(
      ':region' => 'header',
    ));
    $title_block_uuid = (string) $title_block[0]['data-block-id'];

    // Save the layout.
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Go to the welcome page and check that the title div is absent.
    $this->backdropGet('node/1');
    $page_title = $this->xpath('(//div[contains(@class, "l-page-title")])//h1');
    $this->assertEqual(count($page_title), 0, 'The page title was not found.');

    // Check the title block shows.
    $page_title = $this->xpath('(//div[contains(@class, "block-system-title")])//h1');
    $this->assertEqual((string) $page_title[0], 'Test node title');

    // Configure the block to use a custom title that overrides the normal title.
    $data = array(
      'title_display' => 'custom',
      'title' => 'A & "custom" title',
    );
    $this->backdropPost('admin/structure/layouts/manage/default/edit-title/editor/title', $data, t('Save configuration'));
    $this->backdropPost('admin/structure/layouts/manage/default/blocks', array(), t('Save layout'));
    $this->backdropGet('node/1');
    $title = $this->xpath('(//div[contains(@class, "block-system-title")])//h1');
    $this->assertEqual((string) $title[0], 'A & "custom" title');

    // Configure the block to copy a title title from another block.
    // Find the first block within the select list (usually breadcrumb).
    $this->backdropGet('admin/structure/layouts/manage/default/edit-title/editor/title');
    $block_value = $this->xpath('//select[@name="title_block"]/option[@selected]');
    $first_block_uuid = $block_value[0]['value'];
    $data = array(
      'title_display' => 'block',
    );
    $this->backdropPost(NULL, $data, t('Save configuration'));

    // Set a custom title on the first block and confirm it is copied into
    // the title block.
    $data = array(
      'title_display' => 'custom',
      'title' => 'A title from a different block',
    );
    $this->backdropPost('admin/structure/layouts/manage/default/configure-block/editor/' . $first_block_uuid, $data, t('Update block'));
    $this->backdropPost('admin/structure/layouts/manage/default/blocks', array(), t('Save layout'));
    $this->backdropGet('node/1');
    $title = $this->xpath('(//div[contains(@class, "block-system-title")])//h1');
    $this->assertEqual((string)$title[0], 'A title from a different block');

    // Try with no page title at all (should use the default title within the
    // HEAD tag).
    $data = array(
      'title_display' => 'none',
    );
    $this->backdropPost('admin/structure/layouts/manage/default/edit-title/editor/title', $data, t('Save configuration'));
    $this->backdropPost('admin/structure/layouts/manage/default/blocks', array(), t('Save layout'));
    $this->backdropGet('node/1');
    $title = $this->xpath('(//div[contains(@class, "block-system-title")])');
    $this->assertEqual(count($title), 0, 'The entire title block is hidden when title is not displayed.');
    $head_title = $this->xpath('//head//title');
    $this->assertIdentical(strpos((string) $head_title[0], 'Test node title'), 0, 'Default title found in HEAD when title is hidden on page.');

    // Remove the title block.
    $this->backdropGet('admin/structure/layouts/manage/default');
    $remove_link = $this->xpath('//*[@data-block-id=:uuid]//a[contains(@class,"remove-block")]', array(
      ':uuid' => $title_block_uuid,
    ));
    $remove_url_parts = backdrop_parse_url($remove_link[0]['href']);
    $this->backdropGet($remove_url_parts['path'], $remove_url_parts);
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Restore the default title settings.
    $this->backdropGet('admin/structure/layouts/manage/default/edit-title/editor/title');
    $data = array(
      'title_display' => 'default',
    );
    $this->backdropPost(NULL, $data, t('Save configuration'));
    $this->backdropPost('admin/structure/layouts/manage/default', array(), t('Save layout'));

    // Check the normal page title exists again.
    $this->backdropGet('node/1');
    $page_title = $this->xpath('(//div[contains(@class, "l-page-title")])//h1');
    $this->assertEqual(count($page_title), 1, 'The page title was found.');
    $this->assertEqual((string) $page_title[0], 'Test node title');

    // Edit the node to get a system message.
    $this->backdropPost("node/1/edit", array(), t('Save'));

    // Check the system message shows.
    $messages = $this->xpath('(//div[contains(@class, "l-messages")])//div[contains(@class, "messages")]');
    $this->assertEqual(count($messages), 1, 'The Page messages DIV was found.');

    // Check the tabs show.
    $tabs = $this->xpath('(//nav[contains(@class, "tabs")])//ul[contains(@class, "tabs")]');
    $this->assertEqual(count($tabs), 1, 'The tabs nav element was found.');

    // Go back to the default layout.
    $this->backdropGet('admin/structure/layouts/manage/default');

    // Add a Title combo block to the header.
    $this->clickLink(t('Add block'), 0);
    $this->clickLink(t('Page title combo'));
    $this->backdropPost(NULL, array(), t('Add block'));
    $title_combo_block = $this->xpath('(//*[@id="layout-content-form"]//*[contains(@class,:region)]//*[@data-block-id])[last()]', array(
      ':region' => 'header',
    ));
    $title_combo_block_uuid = (string) $title_combo_block[0]['data-block-id'];

    // Save the layout.
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Go to the welcome page and check the hardcoded page elements are absent.
    $this->backdropGet('node/1');
    $page_title = $this->xpath('(//div[contains(@class, "l-page-title")])//h1["Your first post!"]');
    $this->assertEqual(count($page_title), 0, 'The page title was not found.');
    $tabs = $this->xpath('(//nav[contains(@class, "tabs")])//div[contains(@class, "tabs")]');
    $this->assertEqual(count($tabs), 0, 'The tabs DIV was not found.');

    // Edit the node to get a system mesage.
    $this->backdropPost("node/1/edit", array(), t('Save'));
    $messages = $this->xpath('(//div[contains(@class, "l-wrapper")])//div[contains(@class, "l-messages")]');
    $this->assertEqual(count($messages), 0, 'The messages DIV was not found.');

    // Check that the Combo block elements show.
    $combo_page_title = $this->xpath('(//div[contains(@class, "block-system-title-combo")])//h1[contains(@class, "title")]');
    $this->assertEqual(count($combo_page_title), 1, 'The Title combo title DIV was found.');
    $combo_tabs = $this->xpath('(//div[contains(@class, "block-system-title-combo")])//nav[contains(@class, "tabs")]');
    $this->assertEqual(count($combo_tabs), 1, 'The Title combo tabs DIV was found.');
    $combo_messages = $this->xpath('(//div[contains(@class, "block-system-title-combo")])//div[contains(@class, "l-messages")]');
    $this->assertEqual(count($combo_messages), 1, 'The Title combo messages DIV was found.');

    // Remove the Title combo block.
    $this->backdropGet('admin/structure/layouts/manage/default');
    $remove_link = $this->xpath('//*[@data-block-id=:uuid]//a[contains(@class,"remove-block")]', array(
      ':uuid' => $title_combo_block_uuid,
    ));
    $remove_url_parts = backdrop_parse_url($remove_link[0]['href']);
    $this->backdropGet($remove_url_parts['path'], $remove_url_parts);
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Add a Local actions block to the header.
    $this->clickLink(t('Add block'), 0);
    $this->clickLink(t('Page local actions'));
    $this->backdropPost(NULL, array(), t('Add block'));

    // Add a Page messages block to the header.
    $this->clickLink(t('Add block'), 0);
    $this->clickLink(t('Page messages'));
    $this->backdropPost(NULL, array(), t('Add block'));

    // Save the layout.
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Check that the system message DIV no longer shows but the messages block
    // does.
    $messages = $this->xpath('(//div[contains(@class, "l-wrapper")])//div[contains(@class, "l-messages")]');
    $this->assertEqual(count($messages), 0, 'The messages DIV was not found.');
    $block_messages = $this->xpath('(//div[contains(@class, "block-system-messages")])//div[contains(@class, "l-messages")]');
    $this->assertEqual(count($block_messages), 1, 'The Page messages block was found.');

    // Go to the layouts list and check that the Local actions DIV no longer
    // shows but the block does.
    $this->backdropGet('admin/structure/layouts');
    $actions = $this->xpath('(//div[contains(@class, "l-wrapper")])//div[contains(@class, "l-action-links")]');
    $this->assertEqual(count($actions), 0, 'The messages DIV was not found.');
    $block_actions = $this->xpath('(//div[contains(@class, "block-system-action-links")])//ul[contains(@class, "action-links")]');
    $this->assertEqual(count($block_actions), 1, 'The Page messages block was found.');
  }
}

/**
 * Tests that the correct layout is used in various situations.
 */
class LayoutSelectionTest extends BackdropWebTestCase {
  protected $profile = 'testing';
  protected $content_type;
  protected $web_user;
  protected $admin_user;

  function setUp() {
    parent::setUp(array('layout'));
    config_set('system.core', 'node_admin_theme', TRUE);

    // Create a content type for checking node/add page layouts.
    $this->content_type = $this->backdropCreateContentType();

    // Create a limited-ability user that cannot access the admin theme.
    $this->web_user = $this->backdropCreateUser(array(
      'access content',
      'create ' . $this->content_type->type . ' content',
    ));

    // Create and login admin user.
    $this->admin_user = $this->backdropCreateUser(array(
      'access content',
      'create ' . $this->content_type->type . ' content',
      'access administration pages',
      'administer content types',
      'view the administration theme',
      'administer filters',
    ));
    $this->backdropLogin($this->admin_user);
  }

  /**
   * Tests the correct layout is used on 404 and 403 pages.
   */
  function testPages() {
    // Check that a known page is using the admin (one-column) layout.
    $this->backdropGet('admin/config/content/formats/plain_text');
    $this->assertIsAdminLayout();

    // Check that node/add uses the admin layout for the admin user.
    $this->backdropGet('node/add/' . $this->content_type->type);
    $this->assertIsAdminLayout();

    // Check that a 403 page uses the admin layout.
    $this->backdropGet('admin/appearance');
    $this->assertIsAdminLayout();

    // Check that a 404 page uses the admin layout.
    $this->backdropGet('admin/config/content/formats/fake-format');
    $this->assertIsAdminLayout();

    // Check that the front-end is using the default layout.
    $this->backdropGet('node');
    $this->assertIsDefaultLayout();

    // Check that anonymous users get the Default layout for admin paths.
    $this->backdropLogout();

    // Anonymous 403.
    $this->backdropGet('admin/config/content/formats/plain_text');
    $this->assertIsDefaultLayout();

    // Anonymous 404.
    $this->backdropGet('admin/config/content/formats/fake-format');
    $this->assertIsDefaultLayout();

    // Check that a logged in user that can access an admin page but not the
    // admin theme uses the default layout.
    $this->backdropLogin($this->web_user);
    $this->backdropGet('node/add/' . $this->content_type->type);
    $this->assertIsDefaultLayout();
  }

  /**
   * Test role-based selection of layouts.
   */
  function testRoleSelection() {
    // Create and login admin user.
    $admin_user = $this->backdropCreateUser(array(
      'access administration pages',
      'administer site configuration',
      'administer modules',
      'administer layouts',
      'administer nodes',
    ));
    $this->backdropLogin($admin_user);

    // Create a web user.
    $web_user = $this->backdropCreateUser(array('access user profiles', 'access content'));

    // Create a layout at a custom path.
    $layout_name = strtolower($this->randomName());
    $layout_path = $layout_name;
    $edit = array(
      'name' => $layout_name,
      'title' => $layout_name,
      'path' => $layout_path,
      'layout_template' => 'moscone_flipped',
    );

    // Note that this adds a condition, not saving the layout yet.
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Add visibility condition'));

    // Select the condition to add.
    $edit = array(
      'condition' => 'user_role',
    );
    $this->backdropPost(NULL, $edit, t('Load condition'));

    // Allow authenticated users to see the layout only.
    $edit = array(
      'roles[authenticated]' => TRUE,
    );
    $this->backdropPost(NULL, $edit, t('Add visibility condition'));

    // Save the layout.
    $this->backdropPost(NULL, array(), t('Create layout'));

    // View as an administrator.
    $this->backdropGet($layout_path);
    $this->assertResponse(200);
    $this->backdropLogout();

    // View as a basic user.
    $this->backdropLogin($web_user);
    $this->backdropGet($layout_path);
    $this->assertResponse(200);
    $this->backdropLogout();

    // View as anonymous, where they should get a 404.
    $this->backdropGet($layout_path);
    $this->assertResponse(404);
  }

  private function assertIsDefaultLayout($message = '') {
    $result = $this->xpath('//div[contains(@class, "layout--moscone-flipped")]');
    $this->assertEqual(count($result), 1, $message ? $message : format_string('Admin layout used at @path', array('@path' => $this->getUrl())));
  }

  private function assertIsAdminLayout($message = '') {
    $result = $this->xpath('//div[contains(@class, "layout--boxton")]');
    $this->assertEqual(count($result), 1, $message ? $message : format_string('Admin layout used at @path', array('@path' => $this->getUrl())));
  }
}

/**
 * Tests the BlockTest (custom text) block functionality.
 */
class LayoutBlockTextTest extends BackdropWebTestCase {
  protected $profile = 'testing';
  protected $admin_user;

  function setUp() {
    parent::setUp(array('layout', 'block'));
    // Create and login admin user.
    $this->admin_user = $this->backdropCreateUser(array(
      'access content',
      'access administration pages',
      'administer layouts',
      'view the administration theme',
    ));
    $this->backdropLogin($this->admin_user);
  }

  /**
   * Tests the BlockText class functionality.
   */
  function testBlockText() {
    // Save a file to test file usage saving.
    $files = $this->backdropGetTestFiles('image');
    $file_info = (array) array_pop($files);
    $file_info['status'] = 0;
    $file = new File($file_info);
    $file->save();
    $fid = $file->fid;
    $file_info['attributes']['data-file-id'] = $fid;
    $image_string = theme('image', $file_info);

    $this->backdropGet('admin/structure/layouts/manage/default/add-block/editor/sidebar');
    $this->clickLink(t('Custom block'));
    $this->backdropPost(NULL, array(
      'title' => 'Custom block test',
      'content[value]' => '<p>Some content with an image in the middle.</p><p>' . $image_string . '</p><p>End of content.</p>',
    ), t('Add block'));

    // Get the block UUID.
    $last_block = $this->xpath('(//*[contains(@class,:region)]//*[@data-block-id])[last()]', array(
      ':region' => 'l-sidebar',
    ));
    $block_uuid = (string) $last_block[0]['data-block-id'];

    // Check that file usage is not added by the act of adding the block, as the
    // layout has not yet been saved.
    $usage = file_usage_list($file);
    $this->assertEqual($usage, array(), 'No file usages recorded (as correct) when adding block to layout.');

    $this->backdropPost(NULL, array(), t('Save layout'));

    // Check that a file usage was recorded for the file within the block.
    entity_get_controller('file')->resetCache();
    $file = file_load($fid);
    $references = file_usage_list($file);
    $this->assertEqual($references['file']['file'][$fid], 1, 'File usage recorded for the file within the block.');
    $this->assertEqual($file->status, 1, 'File has been marked permanent by its file usage.');

    // Visit the front-end and check the block is displayed.
    $this->backdropGet('user');
    $this->assertRaw('Custom block test', 'Custom block found on front-end.');

    // Removing the block.
    $this->backdropGet('admin/structure/layouts/manage/default');
    $remove_link = $this->xpath('//*[@data-block-id=:uuid]//a[contains(@class,"remove-block")]', array(
      ':uuid' => $block_uuid,
    ));
    $remove_url_parts = backdrop_parse_url($remove_link[0]['href']);
    $this->backdropGet($remove_url_parts['path'], $remove_url_parts);
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Check the file usage is left in place.
    entity_get_controller('file')->resetCache();
    $file = file_load($fid);
    $references = file_usage_list($file);
    $this->assertEqual($references['file']['file'][$fid], 1, 'File usage is unaffected by removing the block from the layout.');
    $this->assertEqual($file->status, 1, 'File still exists and is marked as permanent after removing the block from the layout.');
  }
}

/**
 * Tests the interface for adding, removing, and moving blocks.
 */
class LayoutCloneTest extends BackdropWebTestCase {
  protected $profile = 'testing';
  protected $admin_user;

  function setUp() {
    parent::setUp(array('layout', 'layout_test'));
    // Create and login admin user.
    $this->admin_user = $this->backdropCreateUser(array(
      'access content',
      'access administration pages',
      'administer layouts',
      'view the administration theme',
    ));
    $this->backdropLogin($this->admin_user);
  }

  function testLayoutClone() {
    // Create a new layout using the UI.
    $edit = array(
      'title' => 'Test layout 1',
      'name' => 'test_layout_1',
      'layout_template' => 'boxton',
      'path' => 'test-layout-1',
    );
    $this->backdropPost('admin/structure/layouts/add', $edit, t('Create layout'));

    // Add a few blocks via the API.
    $test_layout_1 = layout_load('test_layout_1');
    $test_layout_1->addBlock('layout_test', 'foo', 'content');
    $test_layout_1->addBlock('layout_test', 'foo', 'sidebar');
    $test_layout_1->save();

    // Test cloning the layout.
    $edit = array(
      'title' => 'Test layout 2',
      'name' => 'test_layout_2',
    );
    $this->backdropPost('admin/structure/layouts/manage/test_layout_1/clone', $edit, t('Clone layout'));

    $success_message = t('Cloned layout @title created. You may now configure the cloned layout.', array('@title' => 'Test layout 2'));
    $this->assertRaw($success_message);

    $edit = array(
      'path' => 'test-layout-2',
    );
    $this->backdropPost(NULL, $edit, t('Save layout'));
    $this->backdropGet('admin/structure/layouts');
    $this->assertRaw('test_layout_1');
    $this->assertRaw('test_layout_2');

    $this->backdropGet('test-layout-1');
    $this->assertResponse(200);
    $this->assertRaw('Foo subject', 'Testing block is present on original layout');

    $this->backdropGet('test-layout-2');
    $this->assertRaw('Foo subject', 'Testing block is present on cloned layout.');
    $this->assertResponse(200);
  }
}

/**
 * Tests the upgrade path from block-based regions to layouts.
 */
class LayoutUpgradePathTest extends UpgradePathTestCase {
  public function setUp() {
    // Path to the database dump files.
    $this->databaseDumpFiles = array(
      backdrop_get_path('module', 'simpletest') . '/tests/upgrade/drupal-7.filled.database.php.gz',
      backdrop_get_path('module', 'layout') . '/tests/layout_upgrade_database.php',
    );
    parent::setUp();
  }

  /**
   * Tests a successful upgrade, where block positions copied to layouts.
   */
  public function testLayoutUpgrade() {
    $this->assertTrue($this->performUpgrade(), 'The upgrade was completed successfully.');

    $this->backdropGet('user');
    $blocks = array(
      'l-header' => array(
        'block-system-header',
        'block-system-main-menu',
      ),
      'l-sidebar-first' => array(
        'block-search-form',
      ),
      'l-triptych-middle' => array(
        'block-node-syndicate',
      ),
      'l-footer-first-column' => array(
        'block-system-main-menu',
      ),
      'l-footer-second-column' => array(
        'block-system-management',
      ),
      'l-footer-third-column' => array(
        'block-system-user-menu',
      ),
      'l-footer-fourth-column' => array(
        // No blocks in forth column. The "navigation" block had been here in
        // the D7 dump, but the navigation menu was removed in Backdrop.
      ),
      'l-footer' => array(
        'block-system-powered-by'
      ),
    );

    $this->assertBlocks($blocks);
    $this->assertNoBlocks(array(
      'l-footer-fourth-column' => array(
        'block', // No blocks at all should be in the fourth column
      ),
    ));

    // Check a node article, which should have the recent nodes block.
    $article_node = $this->backdropCreateNode(array(
      'type' => 'article',
      'title' => $this->randomString(),
    ));
    $this->backdropGet('node/' . $article_node->nid);
    $article_blocks = $blocks;
    $article_blocks['sidebar-second'][] = 'block-node-recent';
    $this->assertBlocks($article_blocks);

    // Check that the blocks are NOT available on page content.
    // Check a node post, which should have the recent nodes block.
    $page_node = $this->backdropCreateNode(array(
      'type' => 'page',
      'title' => $this->randomString(),
    ));
    $this->backdropGet('node/' . $page_node->nid);
    $this->assertBlocks($blocks);
    $this->assertNoBlocks(array(
      'l-sidebar-section' => array(
        'block-node-recent'
      ),
    ));

    // Check for path-based blocks, which should not be shown on /user.
    $profile_blocks = $blocks;
    $this->backdropGet('user/1');
    $this->assertBlocks($profile_blocks);

    // The Recent Comments block should still be shown on the homepage, but not
    // on paths other than node*.
    $path_blocks = array(
      'l-triptych-last' => array(
        'block-comment-recent',
      ),
    );
    $this->backdropGet('<front>');
    $this->assertBlocks($path_blocks);
    $this->backdropGet('node/' . $article_node->nid);
    $this->assertBlocks($path_blocks);
    $this->backdropGet('user/1');
    $this->assertNoBlocks($path_blocks);

    // Logout, and check the homepage for the Account menu block, which should
    // only be visible to authenticated users.
    $this->backdropLogout();
    $this->backdropGet('<front>');
    $this->assertNoBlocks(array(
      '.region-footer-thirdcolumn' => array(
        'block-system-user-menu',
      ),
    ));
  }

  protected function assertBlocks($blocks, $negate = FALSE) {
    foreach ($blocks as $region => $block_classes) {
      $selector = '//*[contains(@class,:region)]//*[contains(@class,:block)]';
      foreach ($block_classes as $block_class) {
        $elements = $this->xpath($selector, array(
          ':region' => $region,
          ':block' => $block_class,
        ));
        if ($negate) {
          $this->assertEqual(count($elements), 0, format_string('The block "@class" was correctly NOT shown in the "@region" region on the path "@path".', array('@class' => $block_class, '@region' => $region, '@path' => $this->getUrl())));
        }
        else {
          $this->assertEqual(count($elements), 1, format_string('The block "@class" was found in the "@region" region on the path "@path".', array('@class' => $block_class, '@region' => $region, '@path' => $this->getUrl())));
        }
      }
    }
  }

  protected function assertNoBlocks($blocks) {
    $this->assertBlocks($blocks, TRUE);
  }
}

/**
 * Tests invocation of hooks when performing an action.
 *
 * Tested hooks are:
 * - hook_layout_presave
 * - hook_layout_insert
 * - hook_layout_update
 * - hook_layout_disable
 * - hook_layout_enable
 * - hook_layout_delete
 * - hook_layout_template_change
 * - hook_layout_revert
 */
class LayoutHookTestCase extends BackdropWebTestCase {
  protected $admin_user;
  protected $profile = 'testing';

  function setUp() {
    parent::setUp('layout', 'layout_test');

    // Create and login admin user.
    $this->admin_user = $this->backdropCreateUser(array(
      'administer layouts',
    ));
    $this->backdropLogin($this->admin_user);

  }

  /**
   * Checks the order of CRUD hook execution messages.
   *
   * layout_test.module implements all core layout CRUD hooks and
   * stores a message for each in state_get('layout_test').
   *
   * @param $messages
   *   An array of plain-text messages in the order they should appear.
   */
  protected function assertHookMessageOrder($messages) {
    $positions = array();
    $state_get = state_get('layout_test');
    foreach ($messages as $message) {
      // Verify that each message is found and record its position.
      $position = array_search($message, $state_get);
      if ($this->assertTrue($position !== FALSE, $message)) {
        $positions[] = $position;
      }
    }
    // Sort the positions and ensure they remain in the same order.
    $sorted = $positions;
    sort($sorted);
    $this->assertTrue($sorted == $positions, 'The hook messages appear in the correct order.');
  }

  /**
   * Tests hook invocations for operations on layouts.
   */
  public function testLayoutHooks() {
    state_set('layout_test', array());

    $this->backdropGet('admin/structure/layouts');
    $this->clickLink(t('Add layout'));

    // Create a new layout at a new path.
    $layout_title = $this->randomName();
    $layout_name = strtolower($layout_title);
    $layout_url = 'layout-test-path';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_url,
    );
    $this->backdropPost(NULL, $edit, t('Create layout'));

    // We should be taken to the layout content page next.
    $this->assertText(t('Layout created. Blocks may now be added to this layout.'));

    // Save the layout.
    $this->backdropPost(NULL, array(), t('Save layout'));

    $this->assertHookMessageOrder(array(
      'layout_test_layout_presave called',
      'layout_test_layout_insert called',
    ));

    state_set('layout_test', array());

    // Return to the layout edit page and save it again.
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name);
    $this->backdropPost(NULL, array(), t('Save layout'));

    $this->assertHookMessageOrder(array(
      'layout_test_layout_presave called',
      'layout_test_layout_update called',
    ));

    // Disable the layout via the dropbutton link.
    state_set('layout_test', array());
    $this->backdropGet('admin/structure/layouts');
    $disable_link = $this->xpath('//*[contains(@class, "disable")]//a');
    $disable_url_parts = backdrop_parse_url($disable_link[0]['href']);
    $this->backdropGet($disable_url_parts['path'], $disable_url_parts);
    $this->assertHookMessageOrder(array(
      'layout_test_layout_disable called',
    ));

    state_set('layout_test', array());

    // Re-enable the layout.
    $this->backdropGet('admin/structure/layouts/manage');
    $enable_link = $this->xpath('//li[contains(@class, "enable")]//a');
    $enable_url_parts = backdrop_parse_url($enable_link[0]['href']);
    $this->backdropGet($enable_url_parts['path'], $enable_url_parts);
    $this->assertHookMessageOrder(array(
      'layout_test_layout_enable called',
    ));

    // Delete the layout.
    state_set('layout_test', array());
    $this->backdropPost('admin/structure/layouts/manage/' . $layout_name . '/delete', array(), t('Delete layout'));
    $this->assertHookMessageOrder(array(
      'layout_test_layout_delete called',
    ));

    // Go to the Default layout's edit page and change the layout to the
    // boxton layout.
    state_set('layout_test', array());
    $edit = array(
      'layout_template' => 'boxton',
    );
    $this->backdropPost('admin/structure/layouts/manage/default/configure', $edit, t('Save layout'));
    $this->assertHookMessageOrder(array(
      'layout_test_layout_template_change called',
    ));

    // Save the layout.
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Revert the Default layout.
    state_set('layout_test', array());
    $this->backdropPost('admin/structure/layouts/manage/default/delete', array(), t('Revert layout'));
    $this->assertHookMessageOrder(array(
      'layout_test_layout_revert called',
    ));
  }
}


/**
 * Tests layout_get_block_usage().
 */
class LayoutBlockUsageTestCase extends BackdropWebTestCase {
  protected $admin_user;
  protected $profile = 'testing';

  function setUp() {
    parent::setUp('layout', 'menu');

    // Create and login admin user.
    $this->admin_user = $this->backdropCreateUser(array(
      'administer layouts',
    ));
    $this->backdropLogin($this->admin_user);

  }

  /**
   * Tests layout_get_block_usage().
   */
  public function testBlockUsage() {

    // By default, the header block should be found in the default layout in
    // header position.
    $this->checkBlockUsage('header', 'default', 'header');

    // Check that the header block is not in the sidebar.
    $this->checkBlockNoUsage('header', 'default', 'sidebar');

    $this->backdropGet('admin/structure/layouts');
    $this->clickLink(t('Add layout'));

    // Create a new layout at a new path.
    $layout_name = 'block_usage_test_layout';
    $layout_title = 'Block usage test layout';
    $layout_url = 'layout-usage-test-path';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_url,
    );
    $this->backdropPost(NULL, $edit, t('Create layout'));
    $this->backdropPost(NULL, array(), t('Save layout'));

    // The new layout should have the header block in the header position.
    $this->checkBlockUsage('header', $layout_name, 'header');

    // Return to the layout edit page and add another header block.
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name);
    $this->clickLink(t('Add block'), 0);
    $this->clickLink(t('Header block'));
    $this->backdropPost(NULL, array(), t('Add block'));
    $this->backdropPost(NULL, array(), t('Save layout'));

    // The new layout should have the header block in the header position.
    $count = $this->checkBlockUsage('header', $layout_name, 'header');
    $this->assertTrue($count == 2, 'Function returns two header blocks in this position.');

    // Check that the header block is not in the sidebar.
    $this->checkBlockNoUsage('header', $layout_name, 'sidebar');

    // Add the header block to the sidebar and check again.
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name);
    $this->clickLink(t('Add block'), 3);
    $this->clickLink(t('Header block'));
    $this->backdropPost(NULL, array(), t('Add block'));
    $this->backdropPost(NULL, array(), t('Save layout'));

    $this->checkBlockUsage('header', $layout_name, 'sidebar');
  }

  /**
   * Checks block usage.
   */
  protected function checkBlockUsage($delta, $layout, $position) {
    backdrop_static_reset('layout_get_block_usage');
    layout_reset_caches();
    module_load_include('inc', 'layout', 'layout.admin');
    $usage = layout_get_block_usage();
    $this->assertTrue(isset($usage['system'][$delta][$layout][$position]), 'Block usage returned correctly. Block found in array.');
    if (isset($usage['system'][$delta][$layout][$position])) {
      return count($usage['system'][$delta][$layout][$position]);
    }
    return FALSE;
  }

  /**
   * Checks block not in usage.
   */
  protected function checkBlockNoUsage($delta, $layout, $position) {
    backdrop_static_reset('layout_get_block_usage');
    layout_reset_caches();
    module_load_include('inc', 'layout', 'layout.admin');
    $usage = layout_get_block_usage();
    $this->assertFalse(isset($usage[$delta][$layout][$position]), 'Block usage returned correctly. Block not found in array.');
    return TRUE;
  }
}

/**
 * Tests that the correct renderer is used.
 */
class LayoutRendererTest extends BackdropWebTestCase {
  protected $profile = 'testing';
  protected $admin_user;

  function setUp() {
    parent::setUp(array('layout', 'layout_test'));

    // Create and login admin user.
    $this->admin_user = $this->backdropCreateUser(array(
      'access content',
      'administer layouts',
      'access user profiles',
    ));
    $this->backdropLogin($this->admin_user);
  }

  /**
   * Test that the correct renderer is used
   */
  function testRendererSelection() {
    // Create a new layout at a new path.
    $this->backdropGet('admin/structure/layouts');
    $this->clickLink(t('Add layout'));
    $layout_name = strtolower($this->randomName());
    $layout_title = $this->randomString();
    $layout_url = 'layout-test-path';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => $layout_url,
    );
    $this->backdropPost(NULL, $edit, t('Create layout'));
    $this->backdropPost(NULL, array(), t('Save layout'));
    // Go the new layout path and test that it is not using the new renderer.
    $this->backdropGet($layout_url);
    $this->assertNoText('This layout uses the Test renderer');
    // Load the layout and save the new renderer.
    $test_layout = layout_get_layout_by_path($layout_url);
    $test_layout->renderer_name = 'test_renderer';
    $test_layout->save();
    // Go the new layout path and test that it is now using the new renderer.
    $this->backdropGet($layout_url);
    $this->assertText('This layout uses the Test renderer');

    // Create a new layout at an existing path.
    $this->backdropGet('admin/structure/layouts');
    $this->clickLink(t('Add layout'));
    $layout_name = strtolower($this->randomName());
    $layout_title = $this->randomString();
    $layout_url = 'user/1';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => 'moscone_flipped',
      'path' => 'user/%',
    );
    $this->backdropPost(NULL, $edit, t('Create layout'));
    $this->backdropPost(NULL, array(), t('Save layout'));
    // Go the new layout path and test that it is not using the new renderer.
    $this->backdropGet($layout_url);
    $this->assertNoText('This layout uses the Test renderer');
    // Load the layout and save the new renderer.
    $test_layout = layout_get_layout_by_path($layout_url);
    $test_layout->renderer_name = 'test_renderer';
    $test_layout->save();
    // Go the new layout path and test that it is now using the new renderer.
    $this->backdropGet($layout_url);
    $this->assertText('This layout uses the Test renderer');
  }
}

/**
 * Tests the interface for flexible layouts.
 */
class LayoutFlexibleTemplateTest extends BackdropWebTestCase {
  protected $profile = 'testing';
  protected $admin_user;

  function setUp() {
    parent::setUp('layout', 'layout_test');

    // Create and login admin user.
    $this->admin_user = $this->backdropCreateUser(array(
      'access administration pages',
      'administer site configuration',
      'administer layouts',
      'administer flexible templates',
    ));
    $this->backdropLogin($this->admin_user);
  }

  /**
   * Test that layout templates may be enabled and disabled.
   */
  function testLayoutFlexibleTemplates() {
    $this->backdropGet('admin/structure/layouts/settings');
    $this->clickLink(t('Add flexible layout template'));

    // Test creating a new flexible layout.
    $template_name1 = $this->randomName();
    $template_machine_name1 = strtolower($template_name1);
    $template_description1 = $this->randomName();

    $edit = array(
      'name' => $template_name1,
      'machine_name' => $template_machine_name1,
      'description' => $template_description1,
    );
    $this->backdropPost(NULL, $edit, t('Save and configure'));
    $this->assertText(t('Layout template "@title" saved.', array('@title' => $template_name1)));

    // Check that the new template is found in the cached list of templates.
    $all_templates = layout_get_layout_template_info();
    $this->assertTrue(isset($all_templates[$template_machine_name1]), 'The flexible template is found in the cache of templates.');

    // Check that its in the list of templates.
    $this->backdropGet('admin/structure/layouts/settings');
    $title = $this->xpath("//td//div[text()=:name]", array(':name' => $template_name1));
    $this->assertTrue($title, 'The flexible template is found in the UI list of templates.');

    // Add another, edit it, then delete it.
    $this->clickLink(t('Add flexible layout template'));
    $template_name2 = $this->randomName();
    $template_machine_name2 = strtolower($template_name2);
    $template_description2 = $this->randomName();

    $edit = array(
      'name' => $template_name2,
      'machine_name' => $template_machine_name2,
      'description' => $template_description2,
    );
    $this->backdropPost(NULL, $edit, t('Save and configure'));
    $this->assertText(t('Layout template "@title" saved.', array('@title' => $template_name2)));
    $this->backdropGet('admin/structure/layouts/settings');
    $flexible_layout_edit_link = 'admin/structure/layouts/settings/flexible-template/' . $template_machine_name2 . '/edit';
    $edit = array(
      'name' => 'To be deleted',
      'description' => $template_description2,
    );
    $this->backdropPost($flexible_layout_edit_link, $edit, t('Save and configure'));
    $this->backdropGet('admin/structure/layouts/settings');
    $title = $this->xpath("//td//div[text()=:name]", array(':name' => 'To be deleted'));
    $this->assertTrue($title, 'The flexible template is found in the UI list of templates with the new name.');
    $flexible_layout_delete_link = 'admin/structure/layouts/settings/flexible-template/' . $template_machine_name2 . '/delete';
    $edit = array();
    $this->backdropPost($flexible_layout_delete_link, $edit, t('Delete template'));
    $this->backdropGet('admin/structure/layouts/settings');
    $title = $this->xpath("//td//div[text()=:name]", array(':name' => 'To be deleted'));
    $this->assertFalse($title, 'The flexible template is not found in the UI list of templates with the new name.');

    $this->backdropGet('admin/structure/layouts');
    $this->clickLink(t('Add layout'));

    // Create a new layout at a new path using the new template.
    $layout_title = $this->randomName();
    $layout_name = strtolower($layout_title);
    $layout_url = 'layout-test-path';
    $edit = array(
      'title' => $layout_title,
      'name' => $layout_name,
      'layout_template' => $template_machine_name1,
      'path' => $layout_url,
    );
    $this->backdropPost(NULL, $edit, t('Create layout'));

    // We should be taken to the layout content page next.
    $this->assertText(t('Layout created. Blocks may now be added to this layout.'));

    // Add a block to the first row.
    $this->clickLink(t('Add block'), 0);
    $this->assertText(t('A testing block for layouts.'));
    $this->clickLink(t('Layout foo block'));
    $edit = array(
      'block_settings[count]' => 30,
    );
    $this->backdropPost(NULL, $edit, t('Add block'));

    // Add a block to the second row.
    $this->clickLink(t('Add block'), 1);
    $this->assertText(t('A testing block for layouts.'));
    $this->clickLink(t('Layout foo block'));
    $edit = array(
      'block_settings[count]' => 15,
    );
    $this->backdropPost(NULL, $edit, t('Add block'));

    // Add a block to the third row.
    $this->clickLink(t('Add block'), 2);
    $this->assertText(t('A testing block for layouts.'));
    $this->clickLink(t('Layout foo block'));
    $edit = array(
      'block_settings[count]' => 5,
    );
    $this->backdropPost(NULL, $edit, t('Add block'));

    // Save the layout.
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Check that the layout is in the listing of layouts.
    $this->backdropGet('admin/structure/layouts');
    $this->assertText(check_plain($layout_title));

    // Go to the the layout path and confirm the blocks exist, have the right
    // setting, and are in the right place.
    $this->backdropGet($layout_url);
    $layout_template = layout_flexible_template_load($template_machine_name1);
    $layout_region_names = array_keys($layout_template->rows);
    $region_block_settings = array(
      $layout_region_names[0] => 30,
      $layout_region_names[1] => 15,
      $layout_region_names[2] => 5,
    );
    foreach ($region_block_settings as $region_name => $setting) {
      $string = format_string('The setting of count is @setting.', array('@setting' => $setting));
      $elements = $this->xpath('//*[contains(@class,:region)]//*[contains(text(),:string)]', array(
        ':region' => 'l-' . $region_name,
        ':string' => $string,
      ));
      $this->assertEqual(count($elements), 1, "The sample block was found in the $region_name region.");
    }

    // Configure the first template.
    $flexible_layout_configure_link = 'admin/structure/layouts/settings/flexible-template/' . $template_machine_name1 . '/configure';
    $this->backdropGet($flexible_layout_configure_link);
    // Check for the default three rows.
    $rows = $this->xpath("//*[@id=:id]//*[contains(@id, :row_id)]", array(':id' => 'layout-flexible-content', ':row_id' => 'flexible-row'));
    $this->assertEqual(count($rows), 3, 'Three rows are found in the template');

    // Edit the header row and check that the changes are reflected on the
    // template editor page and the layout path.
    $this->clickLink(t('Configure row'), 0);
    $edit = array(
      'region_names[region_name_0]' => 'New header',
      'row_classes' => 'new-class another-class',
      'element' => 'main',
      'container' => 'no_container',
    );
    $this->backdropPost(NULL, $edit, t('Save configuration'));

    $header_row = $this->xpath("//main[contains(@id, :row_id)]//h2[text()=:row_title]", array(':row_id' => 'flexible-row--' . $layout_region_names[0], ':row_title' => 'New header'));
    $this->assertEqual(count($header_row), 1, 'The header row has been renamed in the template editor.');

    $this->backdropPost(NULL, array(), t('Save layout template'));

    // Go to the block add page and check that the header region was renamed.
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name);
    $header_row = $this->xpath("//main[contains(@class, :row_class)]//h2[text()=:row_title]", array(':row_class' => 'l-' . $layout_region_names[0], ':row_title' => 'New header'));
    $this->assertEqual(count($header_row), 1, 'The header row has been renamed in the block add page.');

    // Go to the layout path and check that the header region was renamed and
    // the block is still in the header region.
    $this->backdropGet($layout_url);

    $string = format_string('The setting of count is @setting.', array('@setting' => 30));
    $elements = $this->xpath('//main[contains(@class,:region)]/div[contains(@class, :container_class)]//*[contains(text(),:string)]', array(
      ':region' => 'l-' . $layout_region_names[0],
      ':container_class' => 'no-container',
      ':string' => $string,
    ));
    $this->assertEqual(count($elements), 1, "The header element has been changed to 'main'");

    // Go to the template editor and add a new row.
    $flexible_layout_configure_link = 'admin/structure/layouts/settings/flexible-template/' . $template_machine_name1 . '/configure';
    $this->backdropGet($flexible_layout_configure_link);
    $this->backdropPost(NULL, array(), t('Add row'));
    $edit = array(
      'region_count' => 3,
    );
    $this->backdropPost(NULL, $edit, t('Choose region widths'));
    $edit = array(
      'region_style' => 'region_4_4_4',
    );
    $this->backdropPost(NULL, $edit, t('Continue'));
    // Rename just the first region.
    $edit = array(
      'region_names[region_name_0]' => 'First region',
    );
    $this->backdropPost(NULL, $edit, t('Save configuration'));
    $this->backdropPost(NULL, array(), t('Save layout template'));

    $row_count = $this->xpath("//*[@id=:id]//*[contains(@id, :row_id)]", array(':id' => 'layout-flexible-content', ':row_id' => 'flexible-row'));
    $this->assertEqual(count($row_count), 4, 'Four rows are found in the template');

    // Get the id of the last (new) row.
    $last_row_attr = $this->xpath('//div[contains(@class, :class)]/*[4]/@data-row-id', array(
      ':class' => 'layout-flexible-content',
    ));
    $data_row_id = (string) $last_row_attr[0][0];
    $last_row_id = 'flexible-row--' . $last_row_attr[0][0];

    // The last row has 3 regions.
    $row_count = $this->xpath('//div[contains(@id, :id)]//div[contains(@class, :class)]/div', array(
      ':id' => $last_row_id,
      ':class' => 'l-flexible-row row',
    ));
    $this->assertEqual(count($row_count), 3, 'The last row has 3 regions.');

    // Check that the first region has the expected title.
    $fourth_row_first_region_title = $this->xpath('//div[contains(@id, :id)]//div[contains(@class, :class)]/div[1]//h2[text()=:region_title]', array(
      ':id' => $last_row_id,
      ':class' => 'l-flexible-row row',
      ':region_title' => 'First region',
    ));
    $this->assertTrue($fourth_row_first_region_title, 'The region has the correct title.');

    // Go to the block add page and check that the new row shows correctly.
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name);

    // The last row has 3 regions.
    $row_count = $this->xpath('//div[contains(@data-row-id, :id)]//div[contains(@class, :class)]/div', array(
      ':id' => $data_row_id,
      ':class' => 'l-flexible-row row',
    ));
    $this->assertEqual(count($row_count), 3, 'The last row has 3 regions.');

    // Check that the first region has the expected title.
    $fourth_row_first_region_title = $this->xpath('//div[contains(@data-row-id, :id)]//div[contains(@class, :class)]/div[1]//h2[text()=:region_title]', array(
      ':id' => $data_row_id,
      ':class' => 'l-flexible-row row',
      ':region_title' => 'First region',
    ));
    $this->assertTrue($fourth_row_first_region_title, 'The region has the correct title.');

    // Add a block to the new row first region.
    $this->clickLink(t('Add block'), 3);
    $this->assertText(t('A testing block for layouts.'));
    $this->clickLink(t('Layout foo block'));
    $edit = array(
      'block_settings[count]' => 19,
    );
    $this->backdropPost(NULL, $edit, t('Add block'));

    // Add a block to the new row first region.
    $this->clickLink(t('Add block'), 4);
    $this->assertText(t('A testing block for layouts.'));
    $this->clickLink(t('Layout foo block'));
    $edit = array(
      'block_settings[count]' => 18,
    );
    $this->backdropPost(NULL, $edit, t('Add block'));

    // Add a block to the new row first region.
    $this->clickLink(t('Add block'), 5);
    $this->assertText(t('A testing block for layouts.'));
    $this->clickLink(t('Layout foo block'));
    $edit = array(
      'block_settings[count]' => 17,
    );
    $this->backdropPost(NULL, $edit, t('Add block'));

    // Save the layout.
    $this->backdropPost(NULL, array(), t('Save layout'));

    // Go to the the layout path and confirm the blocks exist, have the right
    // setting, and are in the right place.
    $this->backdropGet($layout_url);
    $region_block_settings = array('19', '18', '17');
    foreach ($region_block_settings as $index => $setting) {
      $string = format_string('The setting of count is @setting.', array('@setting' => $setting));
      $elements = $this->xpath('//*[contains(@data-row-id,:id)]//div[contains(@class,:row)]/div[:index]//div[normalize-space(text())=:string]', array(
        ':id' => $data_row_id,
        ':row' => 'l-flexible-row row',
        ':index' => $index + 1,
        ':string' => $string,
      ));
      $this->assertEqual(count($elements), 1, "The sample block was found in the correct region.");
    }

    // Configure the template and move the footer row to the bottom.
    $this->backdropGet($flexible_layout_configure_link);
    $edit = array(
      'row_positions' => "{$layout_region_names[0]},{$layout_region_names[1]},$data_row_id,{$layout_region_names[2]}",
    );
    $this->backdropPost(NULL, $edit, t('Save layout template'));
    $last_row_attr = $this->xpath('//div[contains(@class, :class)]/*[4]/@data-row-id', array(
      ':class' => 'layout-flexible-content',
    ));
    $last_row_attr = (string) $last_row_attr[0][0];
    $this->assertEqual($last_row_attr, $layout_region_names[2], 'The last row is footer.');

    // Go to the block add page and check.
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name);
    $last_row_attr = $this->xpath('//div[contains(@class, :class)]/*[4]/@data-row-id', array(
      ':class' => 'layout-flexible-content',
    ));
    $last_row_attr = (string) $last_row_attr[0][0];
    $this->assertEqual($last_row_attr, $layout_region_names[2], 'The last row is footer.');

    // Go to the the layout path and check.
    $this->backdropGet($layout_url);
    $last_row_attr = $this->xpath('//div[contains(@class, :class)]/*[4]/@data-row-id', array(
      ':class' => 'layout-flexible-content',
    ));
    $last_row_attr = (string) $last_row_attr[0][0];
    $this->assertEqual($last_row_attr, $layout_region_names[2], 'The last row is footer.');

    // Configure the template and delete the footer row.
    $this->backdropGet($flexible_layout_configure_link);
    $this->clickLink(t('Delete row'), 3);
    $this->backdropPost(NULL, array(), t('Save layout template'));

    // Check for the default three rows.
    $rows = $this->xpath("//*[@id=:id]//*[contains(@id, :row_id)]", array(':id' => 'layout-flexible-content', ':row_id' => 'flexible-row'));
    $this->assertEqual(count($rows), 3, 'Three rows are found in the template');

    $last_row_attr = $this->xpath('//div[contains(@class, :class)]/*[last()]/@data-row-id', array(
      ':class' => 'layout-flexible-content',
    ));
    $last_row_attr = (string) $last_row_attr[0][0];
    $this->assertEqual($last_row_attr, $data_row_id, 'The last row is the new row.');

    // Go to the block add page and check.
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name);
    $last_row_attr = $this->xpath('//div[contains(@class, :class)]/*[last()]/@data-row-id', array(
      ':class' => 'layout-flexible-content',
    ));
    $last_row_attr = (string) $last_row_attr[0][0];
    $this->assertEqual($last_row_attr, $data_row_id, 'The last row is the new row.');

    // Go to the the layout path and check.
    $this->backdropGet($layout_url);
    $last_row_attr = $this->xpath('//div[contains(@class, :class)]/*[last()]/@data-row-id', array(
      ':class' => 'layout-flexible-content',
    ));
    $last_row_attr = (string) $last_row_attr[0][0];
    $this->assertEqual($last_row_attr, $data_row_id, 'The last row is the new row.');

    // Test that a user without permissions cannot create flexible templates
    // But can still use them.
    $this->no_flex_user = $this->backdropCreateUser(array(
      'access administration pages',
      'administer site configuration',
      'administer layouts',
    ));
    $this->backdropLogin($this->no_flex_user);

    $this->backdropGet('admin/structure/layouts/settings');
    $this->assertNoLink(t('Add flexible layout template'));
    $this->assertNoLink(t('Configure regions'));

    // Attempt to go to the template editor of the flexible template, and
    // confirm no access.
    $flexible_layout_configure_link = 'admin/structure/layouts/settings/flexible-template/' . $template_machine_name1 . '/configure';
    $this->backdropGet($flexible_layout_configure_link);
    $this->assertResponse(403, 'Access not allowed to flexible layout configuration pages without permission.');

    // Go to the layout created with this template and confirm still has access.
    $this->backdropGet('admin/structure/layouts/manage/' . $layout_name);
    $this->backdropPost(NULL, array(), t('Save layout'));
  }

}