<?php

/**
 * @file
 * Tests loading of Quick Edit and lazy-loading of in-place editors.
 */

/**
 * Tests loading of Quick Edit and lazy-loading of in-place editors.
 */
class QuickEditLoadingTest extends DrupalWebTestCase {

  /**
   * The installation profile to use with this test class.
   *
   * @var string
   */
  protected $profile = 'testing';

  public static function getInfo() {
    return array(
      'name' => 'In-place editing loading',
      'description' => 'Tests loading of in-place editing functionality and lazy loading of its in-place editors.',
      'group' => 'Quick Edit',
    );
  }

  protected function setUp() {
    // Block module is necessary for regions to show up, and hence for
    // hook_page_build() to be able to #attach something in Drupal 7.
    parent::setUp(array('block' ,'contextual', 'quickedit', 'filter', 'node'));

    // Bartik theme alters comment links, so use a different theme.
    theme_enable(array('bartik'));
    variable_set('theme_default', 'bartik');

    // Create a text format.
    $filtered_html_format = new stdClass();
    $filtered_html_format->format = 'filtered_html';
    $filtered_html_format->name = 'Filtered HTML';
    $filtered_html_format->filters = array();
    filter_format_save($filtered_html_format);

    // Create a node type.
    $this->drupalCreateContentType(array(
      'type' => 'article',
      'name' => 'Article',
    ));

    // Create one node of the above node type using the above text format.
    $this->drupalCreateNode(array(
      'type' => 'article',
      'title' => '<script>alert("EVIL!")</script>',
      'body' => array(
        LANGUAGE_NONE => array(
          0 => array(
            'value' => '<p>How are you?</p>',
            'format' => 'filtered_html',
          )
        ),
      ),
      'log' => $this->randomString(),
      'promote' => 1,
    ));

    // Create 2 users, the only difference being the ability to use in-place
    // editing
    $basic_permissions = array('access content', 'create article content', 'edit any article content', 'use text format filtered_html', 'access contextual links');
    $this->author_user = $this->drupalCreateUser($basic_permissions);
    $this->editor_user = $this->drupalCreateUser(array_merge($basic_permissions, array('access in-place editing')));
  }

  /**
   * Test the loading of Quick Edit when a user doesn't have access to it.
   */
  public function testUserWithoutPermission() {
    $this->drupalLogin($this->author_user);
    $this->drupalGet('node/1');

    // Library and in-place editors.
    $settings = $this->drupalGetSettings();
    $module_path = drupal_get_path('module', 'quickedit');
    $this->assertFalse(isset($settings['ajaxPageState']['js'][$module_path . '/js/quickedit.js']), 'Quick Edit library not loaded.');
    $this->assertFalse(isset($settings['ajaxPageState']['js'][$module_path . '/quickedit/js/editors/formEditor.js']), "'form' in-place editor not loaded.");

    // HTML annotation must always exist (to not break the render cache).
    $this->assertRaw('data-quickedit-entity-id="node/1"');
    $this->assertRaw('data-quickedit-field-id="node/1/body/und/full"');

    // Retrieving the metadata should result in an empty 403 response.
    $post = array('fields[0]' => 'node/1/body/und/full');
    $response = $this->drupalPostCustom('quickedit/metadata', 'application/json', $post);
    // @todo: Sadly, Drupal 7 returns HTML when a 403 occurs, no matter what the
    //        Content-Type is. It should be possible to work around this by
    //        moving the access check into the page callback. Question is
    //        whether that's worth the effort.
    // $this->assertIdentical('{}', $response);
    $this->assertResponse(403);

    // Quick Edit's JavaScript would never hit these endpoints if the metadata
    // was empty as above, but we need to make sure that malicious users aren't
    // able to use any of the other endpoints either.
    $post = array('editors[0]' => 'form') + $this->getAjaxPageStatePostData();
    $response = $this->drupalPostCustom('quickedit/attachments', 'application/vnd.drupal-ajax', $post);
    $commands = drupal_json_decode($response);
    $this->assertIdentical(2, count($commands));
    $this->assertIdentical('settings', $commands[0]['command']);
    $this->assertIdentical('alert', $commands[1]['command']);
    $this->assertIdentical('You are not authorized to access this page.', $commands[1]['text']);
    $this->assertResponse(200); // 403 in Drupal 8!
    $post = array('nocssjs' => 'true') + $this->getAjaxPageStatePostData();
    $response = $this->drupalPostCustom('quickedit/form/' . 'node/1/body/und/full', 'application/vnd.drupal-ajax', $post);
    $commands = drupal_json_decode($response);
    $this->assertIdentical(2, count($commands));
    $this->assertIdentical('settings', $commands[0]['command']);
    $this->assertIdentical('alert', $commands[1]['command']);
    $this->assertIdentical('You are not authorized to access this page.', $commands[1]['text']);
    $this->assertResponse(200); // 403 in Drupal 8!
    $edit = array();
    $edit['form_id'] = 'quickedit_field_form';
    $edit['form_token'] = 'xIOzMjuc-PULKsRn_KxFn7xzNk5Bx7XKXLfQfw1qOnA';
    $edit['form_build_id'] = 'form-kVmovBpyX-SJfTT5kY0pjTV35TV-znor--a64dEnMR8';
    $edit['body[0][summary]'] = '';
    $edit['body[0][value]'] = '<p>Malicious content.</p>';
    $edit['body[0][format]'] = 'filtered_html';
    $edit['op'] = t('Save');
    $response = $this->drupalPostCustom('quickedit/form/' . 'node/1/body/und/full', 'application/vnd.drupal-ajax', $edit);
    $commands = drupal_json_decode($response);
    $this->assertIdentical(2, count($commands));
    $this->assertIdentical('settings', $commands[0]['command']);
    $this->assertIdentical('alert', $commands[1]['command']);
    $this->assertIdentical('You are not authorized to access this page.', $commands[1]['text']);
    $this->assertResponse(200); // 403 in Drupal 8!
    $post = array('nocssjs' => 'true');
    $response = $this->drupalPostCustom('quickedit/entity/' . 'node/1', 'application/json', $post);
    $commands = drupal_json_decode($response);
    $this->assertIdentical(2, count($commands));
    $this->assertIdentical('settings', $commands[0]['command']);
    $this->assertIdentical('alert', $commands[1]['command']);
    $this->assertIdentical('You are not authorized to access this page.', $commands[1]['text']);
    $this->assertResponse(200); // 403 in Drupal 8!
  }

  /**
   * Tests the loading of Quick Edit when a user does have access to it.
   *
   * Also ensures lazy loading of in-place editors works.
   */
  public function testUserWithPermission() {
    $this->drupalLogin($this->editor_user);
    $this->drupalGet('node/1');

    // Library and in-place editors.
    $settings = $this->drupalGetSettings();
    $module_path = drupal_get_path('module', 'quickedit');
    $this->assertTrue(isset($settings['ajaxPageState']['js'][$module_path . '/js/quickedit.js']), 'Quick Edit library loaded.');
    $this->assertFalse(isset($settings['ajaxPageState']['js'][$module_path . '/js/editors/formEditor.js']), "'form' in-place editor not loaded.");

    // HTML annotation must always exist (to not break the render cache).
    $this->assertRaw('data-quickedit-entity-id="node/1"');
    $this->assertRaw('data-quickedit-field-id="node/1/body/und/full"');

    // There should be only one revision so far.
    $revisions = node_revision_list(node_load(1));
    $this->assertIdentical(1, count($revisions), 'The node has only one revision.');
    $original_log = $revisions[1]->log;

    // Retrieving the metadata should result in a 200 JSON response.
    $htmlPageDrupalSettings = $this->drupalSettings;
    $post = array('fields[0]' => 'node/1/body/und/full');
    $response = $this->drupalPostCustom('quickedit/metadata', 'application/json', $post);
    $this->assertResponse(200);
    $expected = array(
      'node/1/body/und/full' => array(
        'label' => 'Body',
        'access' => TRUE,
        'editor' => 'form',
        'aria' => 'Entity node 1, field Body',
      )
    );
    $this->assertIdentical(drupal_json_decode($response), $expected, 'The metadata HTTP request answers with the correct JSON response.');
    // Restore drupalSettings to build the next requests; simpletest wipes them
    // after a JSON response.
    $this->drupalSettings = $htmlPageDrupalSettings;

    // Retrieving the attachments should result in a 200 response, containing:
    //  1. a settings command with useless metadata: AjaxController is dumb
    //  2. an insert command that loads the required in-place editors
    $post = array('editors[0]' => 'form') + $this->getAjaxPageStatePostData();
    $response = $this->drupalPostCustom('quickedit/attachments', 'application/vnd.drupal-ajax', $post);
    $ajax_commands = drupal_json_decode($response);
    $this->assertIdentical(2, count($ajax_commands), 'The attachments HTTP request results in two AJAX commands.');
    // First command: settings.
    $this->assertIdentical('settings', $ajax_commands[0]['command'], 'The first AJAX command is a settings command.');
    // Second command: insert libraries into DOM.
    $this->assertIdentical('insert', $ajax_commands[1]['command'], 'The second AJAX command is an append command.');
    $expected = array(
      'command' => 'insert',
      'method' => 'append',
      'selector' => 'body',
      'data' => '<script type="text/javascript" src="' . file_create_url($module_path . '/js/editors/formEditor.js') . '?v=' . VERSION . '"></script>' . "\n",
      'settings' => NULL,
    );
    $this->assertIdentical($expected, $ajax_commands[1], 'The append command contains the expected data.');

    // Retrieving the form for this field should result in a 200 response,
    // containing only an quickeditFieldForm command.
    $post = array('nocssjs' => 'true', 'reset' => 'true') + $this->getAjaxPageStatePostData();
    $response = $this->drupalPostCustom('quickedit/form/' . 'node/1/body/und/full', 'application/vnd.drupal-ajax', $post);
    $this->assertResponse(200);
    $ajax_commands = drupal_json_decode($response);
    $this->assertIdentical(1, count($ajax_commands), 'The field form HTTP request results in one AJAX command.');
    $this->assertIdentical('quickeditFieldForm', $ajax_commands[0]['command'], 'The first AJAX command is an editFieldForm command.');
    $this->assertIdentical('<form ', drupal_substr($ajax_commands[0]['data'], 0, 6), 'The quickeditFieldForm command contains a form.');

    // Prepare form values for submission. drupalPostAjaxForm() is not suitable
    // for handling pages with JSON responses, so we need our own solution
    // here.
    $form_tokens_found = preg_match('/\sname="form_token" value="([^"]+)"/', $ajax_commands[0]['data'], $token_match) && preg_match('/\sname="form_build_id" value="([^"]+)"/', $ajax_commands[0]['data'], $build_id_match);
    $this->assertTrue($form_tokens_found, 'Form tokens found in output.');

    if ($form_tokens_found) {
      $edit = array(
        'body[und][0][summary]' => '',
        'body[und][0][value]' => '<p>Fine thanks.</p>',
        'body[und][0][format]' => 'filtered_html',
        'op' => t('Save'),
      );
      $post = array(
        'form_id' => 'quickedit_field_form',
        'form_token' => $token_match[1],
        'form_build_id' => $build_id_match[1],
      );
      $post += $edit + $this->getAjaxPageStatePostData();

      // Submit field form and check response. This should store the updated
      // entity in TempStore on the server.
      $response = $this->drupalPostCustom('quickedit/form/' . 'node/1/body/und/full', 'application/vnd.drupal-ajax', $post);
      $this->assertResponse(200);
      $ajax_commands = drupal_json_decode($response);
      $this->assertIdentical(2, count($ajax_commands), 'The field form HTTP request results in two AJAX commands.');
      $this->assertIdentical('settings', $ajax_commands[0]['command'], 'The first AJAX command is a settings command.');
      $this->assertIdentical('quickeditFieldFormSaved', $ajax_commands[1]['command'], 'The second AJAX command is an quickeditFieldFormSaved command.');
      $this->assertTrue(strpos($ajax_commands[1]['data'], 'Fine thanks.'), 'Form value saved and printed back.');
      $this->assertIdentical($ajax_commands[1]['other_view_modes'], array(), 'Field was not rendered in any other view mode.');

      // Ensure the text on the original node did not change yet.
      $this->drupalGet('node/1');
      $this->assertText('How are you?');

      // Save the entity by moving the TempStore values to entity storage.
      $post = array('nocssjs' => 'true');
      $response = $this->drupalPostCustom('quickedit/entity/' . 'node/1', 'application/json', $post);
      $this->assertResponse(200);
      $ajax_commands = drupal_json_decode($response);
      $this->assertIdentical(2, count($ajax_commands), 'The entity submission HTTP request results in two AJAX commands.');
      $this->assertIdentical('settings', $ajax_commands[0]['command'], 'The first AJAX command is a settings command.');
      $this->assertIdentical('quickeditEntitySaved', $ajax_commands[1]['command'], 'The second AJAX command is an quickeditEntitySaved command.');
      $this->assertIdentical($ajax_commands[1]['data']['entity_type'], 'node', 'Saved entity is of type node.');
      $this->assertIdentical($ajax_commands[1]['data']['entity_id'], '1', 'Entity id is 1.');

      // Ensure the text on the original node did change.
      $this->drupalGet('node/1');
      $this->assertText('Fine thanks.');

      // Ensure no new revision was created and the log message is unchanged.
      $revisions = node_revision_list(node_load(1));
      $this->assertIdentical(1, count($revisions), 'The node has only one revision.');
      $this->assertIdentical($original_log, $revisions[1]->log, 'The revision log message is unchanged.');

      // Now configure this node type to create new revisions automatically,
      // then again retrieve the field form, fill it, submit it (so it ends up
      // in TempStore) and then save the entity. Now there should be two
      // revisions.
      variable_set('node_options_article', array('status', 'revision'));

      // Retrieve field form.
      $post = array('nocssjs' => 'true', 'reset' => 'true');
      $response = $this->drupalPostCustom('quickedit/form/' . 'node/1/body/und/full', 'application/vnd.drupal-ajax', $post);
      $this->assertResponse(200);
      $ajax_commands = drupal_json_decode($response);
      $this->assertIdentical(1, count($ajax_commands), 'The field form HTTP request results in one AJAX command.');
      $this->assertIdentical('quickeditFieldForm', $ajax_commands[0]['command'], 'The first AJAX command is an quickeditFieldForm command.');
      $this->assertIdentical('<form ', drupal_substr($ajax_commands[0]['data'], 0, 6), 'The quickeditFieldForm command contains a form.');

      // Submit field form.
      preg_match('/\sname="form_token" value="([^"]+)"/', $ajax_commands[0]['data'], $token_match);
      preg_match('/\sname="form_build_id" value="([^"]+)"/', $ajax_commands[0]['data'], $build_id_match);
      $edit['body[und][0][value]'] = '<p>kthxbye</p>';
      $post = array(
        'form_id' => 'quickedit_field_form',
        'form_token' => $token_match[1],
        'form_build_id' => $build_id_match[1],
      );
      $post += $edit + $this->getAjaxPageStatePostData();
      $response = $this->drupalPostCustom('quickedit/form/' . 'node/1/body/und/full', 'application/vnd.drupal-ajax', $post);
      // @todo Uncomment the below once https://drupal.org/node/2063303 is fixed.
      // $this->assertIdentical('[]', $response);
      $this->assertResponse(200);
      $ajax_commands = drupal_json_decode($response);
      $this->assertIdentical(2, count($ajax_commands), 'The field form HTTP request results in two AJAX commands.');
      $this->assertIdentical('settings', $ajax_commands[0]['command'], 'The first AJAX command is a settings command.');
      $this->assertIdentical('quickeditFieldFormSaved', $ajax_commands[1]['command'], 'The second AJAX command is an quickeditFieldFormSaved command.');
      $this->assertTrue(strpos($ajax_commands[1]['data'], 'kthxbye'), 'Form value saved and printed back.');

      // Save the entity.
      $post = array('nocssjs' => 'true');
      $response = $this->drupalPostCustom('quickedit/entity/' . 'node/1', 'application/json', $post);
      // @todo Uncomment the below once https://drupal.org/node/2063303 is fixed.
      // $this->assertIdentical('[]', $response);
      $this->assertResponse(200);

      // Test that a revision was created with the correct log message.
      $revisions = node_revision_list(node_load(1));
      $this->assertIdentical(2, count($revisions), 'The node has two revisions.');
      $this->assertIdentical($original_log, $revisions[1]->log, 'The first revision log message is unchanged.');
      $this->assertIdentical('Updated the <em class="placeholder">Body</em> field through in-place editing.', $revisions[2]->log, 'The second revision log message was correctly generated by Edit module.');
    }
  }

  /**
   * Tests the loading of Quick Edit for the title base field.
   */
  public function testTitleBaseField() {
    $this->drupalLogin($this->editor_user);

    // First, ensure quickedit_preprocess_node()'s wrapping of the 'title'
    // template variable does not result in an XSS. We cannot check this on the
    // full node page, because there the 'node' template's 'title' variable is
    // not printed: there, the actual
    $this->drupalGet('');
    $this->assertNoRaw('<script>alert("EVIL!")</script>');

    // Next, try in-place editing the node on its full node page. Also ensure
    // quickedit_preprocess_page()'s wrapping of the 'title' template variable
    // does not result in an XSS.
    $this->drupalGet('node/1');
    $this->assertNoRaw('<script>alert("EVIL!")</script>');

    // Ensure that the full page title is actually in-place editable
    $node = node_load(1);
    $elements = $this->xpath('//h1/div[@data-quickedit-field-id="node/1/title/und/full" and normalize-space(text())=:title]', array(':title' => $node->title));
    $this->assertTrue(!empty($elements), 'Title with data-quickedit-field-id attribute found.');

    // Retrieving the metadata should result in a 200 JSON response.
    $htmlPageDrupalSettings = $this->drupalSettings;
    $post = array(
      'entities[0]' => 'node/1',
      'fields[0]' => 'node/1/title/und/full');
    $response = $this->drupalPostCustom('quickedit/metadata', 'application/json', $post);
    $this->assertResponse(200);
    $expected = array(
      // The label should be check_plain()'d.
      'node/1' => array(
        'label' => '&lt;script&gt;alert(&quot;EVIL!&quot;)&lt;/script&gt;',
      ),
      'node/1/title/und/full' => array(
        'label' => 'Title',
        'access' => TRUE,
        'editor' => 'plain_text',
        'aria' => 'Entity node 1, field Title',
      )
    );
    $this->assertIdentical(drupal_json_decode($response), $expected, 'The metadata HTTP request answers with the correct JSON response.');
    // Restore drupalSettings to build the next requests; simpletest wipes them
    // after a JSON response.
    $this->drupalSettings = $htmlPageDrupalSettings;

    // Retrieving the form for this field should result in a 200 response,
    // containing only an quickeditFieldForm command.
    $post = array('nocssjs' => 'true', 'reset' => 'true') + $this->getAjaxPageStatePostData();
    $response = $this->drupalPostCustom('quickedit/form/' . 'node/1/title/und/full', 'application/vnd.drupal-ajax', $post);
    $this->assertResponse(200);
    $ajax_commands = drupal_json_decode($response);
    $this->assertIdentical(1, count($ajax_commands), 'The field form HTTP request results in one AJAX command.');
    $this->assertIdentical('quickeditFieldForm', $ajax_commands[0]['command'], 'The first AJAX command is an quickeditFieldForm command.');
    $this->assertIdentical('<form ', drupal_substr($ajax_commands[0]['data'], 0, 6), 'The quickeditFieldForm command contains a form.');

    // Prepare form values for submission. drupalPostAjaxForm() is not suitable
    // for handling pages with JSON responses, so we need our own solution
    // here.
    $form_tokens_found = preg_match('/\sname="form_token" value="([^"]+)"/', $ajax_commands[0]['data'], $token_match) && preg_match('/\sname="form_build_id" value="([^"]+)"/', $ajax_commands[0]['data'], $build_id_match);
    $this->assertTrue($form_tokens_found, 'Form tokens found in output.');

    if ($form_tokens_found) {
      $edit = array(
        'title' => 'Obligatory question',
        'op' => t('Save'),
      );
      $post = array(
        'form_id' => 'quickedit_field_form',
        'form_token' => $token_match[1],
        'form_build_id' => $build_id_match[1],
      );
      $post += $edit + $this->getAjaxPageStatePostData();

      // Submit field form and check response. This should store the
      // updated entity in TempStore on the server.
      $response = $this->drupalPostCustom('quickedit/form/' . 'node/1/title/und/full', 'application/vnd.drupal-ajax', $post);
      $this->assertResponse(200);
      $ajax_commands = drupal_json_decode($response);
      $this->assertIdentical(2, count($ajax_commands), 'The field form HTTP request results in two AJAX commands.');
      $this->assertIdentical('settings', $ajax_commands[0]['command'], 'The first AJAX command is a settings command.');
      $this->assertIdentical('quickeditFieldFormSaved', $ajax_commands[1]['command'], 'The second AJAX command is an quickeditFieldFormSaved command.');
      $this->assertTrue(strpos($ajax_commands[1]['data'], 'Obligatory question'), 'Form value saved and printed back.');

      // Ensure the text on the original node did not change yet.
      $this->drupalGet('node/1');
      $this->assertNoText('Obligatory question');

      // Save the entity by moving the TempStore values to entity storage.
      $post = array('nocssjs' => 'true');
      $response = $this->drupalPostCustom('quickedit/entity/' . 'node/1', 'application/json', $post);
      $this->assertResponse(200);
      $ajax_commands = drupal_json_decode($response);
      $this->assertIdentical(2, count($ajax_commands), 'The entity submission HTTP request results in two AJAX commands.');
      $this->assertIdentical('settings', $ajax_commands[0]['command'], 'The first AJAX command is a settings command.');
      $this->assertIdentical('quickeditEntitySaved', $ajax_commands[1]['command'], 'The second AJAX command is an quickeditEntitySaved command.');
      $this->assertIdentical($ajax_commands[1]['data']['entity_type'], 'node', 'Saved entity is of type node.');
      $this->assertIdentical($ajax_commands[1]['data']['entity_id'], '1', 'Entity id is 1.');

      // Ensure the text on the original node did change.
      $this->drupalGet('node/1');
      $this->assertText('Obligatory question');
    }
  }

  /**
   * Tests that Quick Edit doesn't make fields rendered with display options editable.
   */
  public function testDisplayOptions() {
    $node = node_load('1');
    $display_settings = array(
      'label' => 'inline',
    );
    $build = field_view_field('node', $node, 'body', $display_settings);
    $output = drupal_render($build);
    $this->assertFalse(strpos($output, 'data-quickedit-field-id'), 'data-quickedit-field-id attribute not added when rendering field using dynamic display options.');
  }

  /**
   * Tests that Quick Edit works with custom render pipelines.
   */
  public function testCustomPipeline() {
    module_enable(array('quickedit_test'));

    $custom_render_url = 'quickedit/form/node/1/body/und/quickedit_test-custom-render-data';
    $this->drupalLogin($this->editor_user);

    // Request editing to render results with the custom render pipeline.
    $post = array('nocssjs' => 'true') + $this->getAjaxPageStatePostData();
    $response = $this->drupalPostCustom($custom_render_url, 'application/vnd.drupal-ajax', $post);
    $ajax_commands = drupal_json_decode($response);

    // Prepare form values for submission. drupalPostAJAX() is not suitable for
    // handling pages with JSON responses, so we need our own solution here.
    $form_tokens_found = preg_match('/\sname="form_token" value="([^"]+)"/', $ajax_commands[0]['data'], $token_match) && preg_match('/\sname="form_build_id" value="([^"]+)"/', $ajax_commands[0]['data'], $build_id_match);
    $this->assertTrue($form_tokens_found, 'Form tokens found in output.');

    if ($form_tokens_found) {
      $post = array(
        'form_id' => 'quickedit_field_form',
        'form_token' => $token_match[1],
        'form_build_id' => $build_id_match[1],
        'body[und][0][summary]' => '',
        'body[und][0][value]' => '<p>Fine thanks.</p>',
        'body[und][0][format]' => 'filtered_html',
        'op' => t('Save'),
      );
      // Assume there is another field on this page, which doesn't use a custom
      // render pipeline, but the default one, and it uses the "full" view mode.
      $post += array('other_view_modes[]' => 'full');

      // Submit field form and check response. Should render with the custom
      // render pipeline.
      $response = $this->drupalPostCustom($custom_render_url, 'application/vnd.drupal-ajax', $post);
      $this->assertResponse(200);
      $ajax_commands = drupal_json_decode($response);
      $this->assertIdentical(2, count($ajax_commands), 'The field form HTTP request results in two AJAX commands.');
      $this->assertIdentical('settings', $ajax_commands[0]['command'], 'The first AJAX command is a settings command.');
      $this->assertIdentical('quickeditFieldFormSaved', $ajax_commands[1]['command'], 'The second AJAX command is an quickeditFieldFormSaved command.');
      $this->assertTrue(strpos($ajax_commands[1]['data'], 'Fine thanks.'), 'Form value saved and printed back.');
      $this->assertTrue(strpos($ajax_commands[1]['data'], '<div class="quickedit-test-wrapper">') !== FALSE, 'Custom render pipeline used to render the value.');
      $this->assertIdentical(array_keys($ajax_commands[1]['other_view_modes']), array('full'), 'Field was also rendered in the "full" view mode.');
      $this->assertTrue(strpos($ajax_commands[1]['other_view_modes']['full'], 'Fine thanks.'), '"full" version of field contains the form value.');
    }
  }

  /**
   * Tests Quick Edit with concurrent node / Quick Edit use.
   */
  function testConcurrentEdit() {
    $this->drupalLogin($this->editor_user);

    // Retrieving the form for this field should result in a 200 response,
    // containing only an quickeditFieldForm command.
    $post = array('nocssjs' => 'true', 'reset' => 'true') + $this->getAjaxPageStatePostData();
    $response = $this->drupalPostCustom('quickedit/form/' . 'node/1/body/und/full', 'application/vnd.drupal-ajax', $post);
    $this->assertResponse(200);
    $ajax_commands = drupal_json_decode($response);

    // Prepare form values for submission. drupalPostAJAX() is not suitable
    // for handling pages with JSON responses, so we need our own solution
    // here.
    $form_tokens_found = preg_match('/\sname="form_token" value="([^"]+)"/', $ajax_commands[0]['data'], $token_match) && preg_match('/\sname="form_build_id" value="([^"]+)"/', $ajax_commands[0]['data'], $build_id_match);
    $this->assertTrue($form_tokens_found, 'Form tokens found in output.');

    if ($form_tokens_found) {
      $post = array();
      $post['form_id'] = 'quickedit_field_form';
      $post['form_token'] = $token_match[1];
      $post['form_build_id'] = $build_id_match[1];
      $post['body[und][0][summary]'] = '';
      $post['body[und][0][value]'] = '<p>Fine thanks.</p>';
      $post['body[und][0][format]'] = 'filtered_html';
      $post['op'] = t('Save');

      // Save the node on the regular node edit form.
      $this->drupalPost('node/1/edit', array(), t('Save'));
      // Ensure different save timestamps for field editing.
      sleep(2);

      // Submit field form and check response. Should throw a validation error
      // because the node was changed in the meantime.
      // $response = $this->submitFieldForm('node/1/body/und/full', $edit);
      $response = $this->drupalPostCustom('quickedit/form/' . 'node/1/body/und/full', 'application/vnd.drupal-ajax', $post);
      $this->assertResponse(200);
      $ajax_commands = drupal_json_decode($response);
      $this->assertIdentical(2, count($ajax_commands), 'The field form HTTP request results in two AJAX commands.');
      $this->assertIdentical('settings', $ajax_commands[0]['command'], 'The first AJAX command is a settings command.');
      $this->assertIdentical('quickeditFieldFormValidationErrors', $ajax_commands[1]['command'], 'The second AJAX command is an quickeditFieldFormValidationErrors command.');
      $this->assertTrue(strpos($ajax_commands[1]['data'], t('The copy of the content being edited is outdated. Reload the page to edit an up-to-date version.')), 'Error message returned to user.');
    }
  }

  /**
   * Perform a POST HTTP request in a non-form context.
   *
   * @param string $path
   *   Drupal path where the request should be POSTed to. Will be transformed
   *   into an absolute path automatically.
   * @param string $accept
   *   The value for the "Accept" header. Usually either 'application/json' or
   *   'application/vnd.drupal-ajax'.
   * @param array $post
   *   The POST data. When making a 'application/vnd.drupal-ajax' request, the
   *   Ajax page state data should be included. Use getAjaxPageStatePostData()
   *   for that.
   * @param array $options
   *   (optional) Options to be forwarded to the url generator. The 'absolute'
   *   option will automatically be enabled.
   *
   * @return
   *   The content returned from the call to curl_exec().
   *
   * @see WebTestBase::getAjaxPageStatePostData()
   * @see WebTestBase::curlExec()
   * @see url()
   */
  protected function drupalPostCustom($path, $accept, array $post, $options = array()) {
    return $this->curlExec(array(
      CURLOPT_URL => url($path, $options + array('absolute' => TRUE)),
      CURLOPT_POST => TRUE,
      CURLOPT_POSTFIELDS => $this->serializePostValues($post),
      CURLOPT_HTTPHEADER => array(
        'Accept: ' . $accept,
        'Content-Type: application/x-www-form-urlencoded',
      ),
    ));
  }

  /**
   * Serialize POST HTTP request values.
   *
   * Encode according to application/x-www-form-urlencoded. Both names and
   * values needs to be urlencoded, according to
   * http://www.w3.org/TR/html4/interact/forms.html#h-17.13.4.1
   *
   * @param array $post
   *   The array of values to be POSTed.
   *
   * @return string
   *   The serialized result.
   */
  protected function serializePostValues($post = array()) {
    foreach ($post as $key => $value) {
      $post[$key] = urlencode($key) . '=' . urlencode($value);
    }
    return implode('&', $post);
  }

  /**
   * Get the Ajax page state from drupalSettings and prepare it for POSTing.
   *
   * @return array
   *   The Ajax page state POST data.
   */
  protected function getAjaxPageStatePostData() {
    $post = array();
    $drupal_settings = $this->drupalSettings;
    if (isset($drupal_settings['ajaxPageState'])) {
      $post['ajax_page_state[theme]'] = $drupal_settings['ajaxPageState']['theme'];
      $post['ajax_page_state[theme_token]'] = $drupal_settings['ajaxPageState']['theme_token'];
      foreach ($drupal_settings['ajaxPageState']['css'] as $key => $value) {
        $post["ajax_page_state[css][$key]"] = 1;
      }
      foreach ($drupal_settings['ajaxPageState']['js'] as $key => $value) {
        $post["ajax_page_state[js][$key]"] = 1;
      }
    }
    return $post;
  }

}
