TMGMTUiJavascriptTest.php

<?php

namespace Drupal\Tests\tmgmt\FunctionalJavascript;

use Drupal\file\Entity\File;
use Drupal\filter\Entity\FilterFormat;
use Drupal\FunctionalJavascriptTests\WebDriverTestBase;
use Drupal\Tests\tmgmt\Functional\TmgmtEntityTestTrait;
use Drupal\Tests\tmgmt\Functional\TmgmtTestTrait;
use Drupal\tmgmt\Entity\Job;
use Drupal\tmgmt\Entity\JobItem;
use Drupal\tmgmt\Entity\Translator;

/**
 * Verifies the UI of the review form.
 *
 * @group tmgmt
 */
class TMGMTUiJavascriptTest extends WebDriverTestBase {
  use TmgmtTestTrait;
  use TmgmtEntityTestTrait;

  /**
   * A default translator using the test translator.
   *
   * @var \Drupal\tmgmt\Entity\Translator
   */
  protected $default_translator;

  /**
   * A file entity.
   *
   * @var \Drupal\file\FileInterface
   */
  protected $image;

  /**
   * Modules to enable.
   *
   * @var array
   */
  protected static $modules = array(
    'tmgmt',
    'tmgmt_test',
    'tmgmt_content',
    'image',
    'node',
    'block',
    'locale',
  );

  /**
   * {@inheritdoc}
   */
  protected $defaultTheme = 'stark';

  /**
   * {@inheritdoc}
   */
  function setUp() : void {
    parent::setUp();
    $this
      ->addLanguage('de');
    $this->default_translator = Translator::load('test_translator');
    $filtered_html_format = FilterFormat::create(array(
      'format' => 'filtered_html',
      'name' => 'Filtered HTML',
    ));
    $filtered_html_format
      ->save();
    $this
      ->drupalCreateContentType(array(
      'type' => 'test_bundle',
    ));
    $this
      ->loginAsAdmin(array(
      'create translation jobs',
      'submit translation jobs',
      'create test_bundle content',
      $filtered_html_format
        ->getPermissionName(),
    ));
    \Drupal::service('file_system')
      ->copy(DRUPAL_ROOT . '/core/misc/druplicon.png', 'public://example.jpg');
    $this->image = File::create(array(
      'uri' => 'public://example.jpg',
    ));
    $this->image
      ->save();
  }

  /**
   * Tests of the job item review process.
   */
  public function testReview() {
    $page = $this
      ->getSession()
      ->getPage();
    $assert_session = $this
      ->assertSession();
    $job = $this
      ->createJob();
    $job->translator = $this->default_translator
      ->id();
    $job->settings = array();
    $job
      ->save();
    $item = $job
      ->addItem('test_source', 'test', 1);

    // The test expects the item to be active.
    $item
      ->active();
    $data = \Drupal::service('tmgmt.data')
      ->flatten($item
      ->getData());
    $keys = array_keys($data);
    $key = $keys[0];
    $this
      ->drupalGet('admin/tmgmt/items/' . $item
      ->id());

    // Test that source and target languages are displayed.
    $assert_session
      ->pageTextContains($item
      ->getJob()
      ->getSourceLanguage()
      ->getName());
    $assert_session
      ->pageTextContains($item
      ->getJob()
      ->getTargetLanguage()
      ->getName());

    // Testing the title of the preview page.
    $title_element = $page
      ->find('css', 'title');
    $this
      ->assertEquals('Job item ' . $item
      ->label() . ' | Drupal', $title_element
      ->getHtml());

    // Testing the result of the
    // TMGMTTranslatorUIControllerInterface::reviewDataItemElement()
    $assert_session
      ->pageTextContains(t('Testing output of review data item element @key from the testing provider.', array(
      '@key' => $key,
    )));

    // Test the review tool source textarea.
    $this
      ->assertSession()
      ->fieldValueEquals('dummy|deep_nesting[source]', $data[$key]['#text']);

    // Save translation.
    $this
      ->submitForm([
      'dummy|deep_nesting[translation]' => $data[$key]['#text'] . 'translated',
    ], 'Save');

    // Test review data item.
    $this
      ->drupalGet('admin/tmgmt/items/' . $item
      ->id());
    $page
      ->pressButton('reviewed-dummy|deep_nesting');
    $assert_session
      ->assertWaitOnAjaxRequest();
    $assert_session
      ->responseContains('icons/gray-check.svg" alt="Reviewed"');
    \Drupal::entityTypeManager()
      ->getStorage('tmgmt_job')
      ->resetCache();
    \Drupal::entityTypeManager()
      ->getStorage('tmgmt_job_item')
      ->resetCache();

    /** @var JobItem $item */
    $item = JobItem::load($item
      ->id());
    $this
      ->assertEquals(1, $item
      ->getCountReviewed(), 'Item reviewed correctly.');

    // Check if translation has been saved.
    $this
      ->assertSession()
      ->fieldValueEquals('dummy|deep_nesting[translation]', $data[$key]['#text'] . 'translated');

    // Tests for the minimum height of the textareas.
    $rows = $this
      ->xpath('//textarea[@name="dummy|deep_nesting[source]"]');
    $this
      ->assertEquals(3, (string) $rows[0]
      ->getAttribute('rows'));
    $rows2 = $this
      ->xpath('//textarea[@name="dummy|deep_nesting[translation]"]');
    $this
      ->assertEquals(3, (string) $rows2[0]
      ->getAttribute('rows'));

    // Test data item status when content changes.
    $this
      ->submitForm([], 'Save');
    $this
      ->drupalGet('admin/tmgmt/items/' . $item
      ->id());
    $assert_session
      ->responseContains('icons/gray-check.svg" alt="Reviewed"');
    $edit = [
      'dummy|deep_nesting[translation]' => 'New text for job item',
    ];
    $this
      ->submitForm($edit, 'Save');
    $this
      ->drupalGet('admin/tmgmt/items/' . $item
      ->id());
    $assert_session
      ->responseContains('icons/gray-check.svg" alt="Reviewed"');
    $this
      ->assertSession()
      ->fieldValueEquals('dummy|deep_nesting[translation]', 'New text for job item');

    // Test for the dynamical height of the source textarea.
    \Drupal::state()
      ->set('tmgmt.test_source_data', array(
      'dummy' => array(
        'deep_nesting' => array(
          '#text' => str_repeat('Text for job item', 20),
          '#label' => 'Label',
        ),
      ),
    ));
    $item2 = $job
      ->addItem('test_source', 'test', 2);
    $this
      ->drupalGet('admin/tmgmt/items/' . $item2
      ->id());
    $rows3 = $this
      ->xpath('//textarea[@name="dummy|deep_nesting[source]"]');
    $this
      ->assertEquals(4, (string) $rows3[0]
      ->getAttribute('rows'));

    // Test for the maximum height of the source textarea.
    \Drupal::state()
      ->set('tmgmt.test_source_data', array(
      'dummy' => array(
        'deep_nesting' => array(
          '#text' => str_repeat('Text for job item', 100),
          '#label' => 'Label',
        ),
      ),
    ));
    $item3 = $job
      ->addItem('test_source', 'test', 3);
    $this
      ->drupalGet('admin/tmgmt/items/' . $item3
      ->id());
    $rows4 = $this
      ->xpath('//textarea[@name="dummy|deep_nesting[source]"]');
    $this
      ->assertEquals(15, (string) $rows4[0]
      ->getAttribute('rows'));

    // Tests the HTML tags validation.
    \Drupal::state()
      ->set('tmgmt.test_source_data', array(
      'title' => array(
        'deep_nesting' => array(
          '#text' => '<p><em><strong>Source text bold and Italic</strong></em></p>',
          '#label' => 'Title',
        ),
      ),
      'body' => array(
        'deep_nesting' => array(
          '#text' => '<p><em><strong>Source body bold and Italic</strong></em></p>',
          '#label' => 'Body',
        ),
      ),
    ));
    $item4 = $job
      ->addItem('test_source', 'test', 4);
    $this
      ->drupalGet('admin/tmgmt/items/' . $item4
      ->id());

    // Drop <strong> tag in translated text.
    $edit = array(
      'title|deep_nesting[translation]' => '<em>Translated italic text missing paragraph</em>',
    );
    $this
      ->submitForm($edit, 'Validate HTML tags');
    $assert_session
      ->responseContains(t('Expected tags @tags not found.', array(
      '@tags' => '<p>,<strong>,</strong>,</p>',
    )));
    $assert_session
      ->responseContains(t('@tag expected 1, found 0.', array(
      '@tag' => '<p>',
    )));
    $assert_session
      ->responseContains(t('@tag expected 1, found 0.', array(
      '@tag' => '<strong>',
    )));
    $assert_session
      ->responseContains(t('@tag expected 1, found 0.', array(
      '@tag' => '</strong>',
    )));
    $assert_session
      ->responseContains(t('@tag expected 1, found 0.', array(
      '@tag' => '</p>',
    )));
    $assert_session
      ->pageTextContains('HTML tag validation failed for 1 field(s).');

    // Change the order of HTML tags.
    $edit = array(
      'title|deep_nesting[translation]' => '<p><strong><em>Translated text Italic and bold</em></strong></p>',
    );
    $this
      ->submitForm($edit, 'Validate HTML tags');
    $assert_session
      ->pageTextContains('Order of the HTML tags are incorrect.');
    $assert_session
      ->pageTextContains('HTML tag validation failed for 1 field(s).');

    // Add multiple tags incorrectly.
    $edit = array(
      'title|deep_nesting[translation]' => '<p><p><p><p><strong><em><em>Translated text Italic and bold, many tags</em></strong></strong></strong></p>',
    );
    $this
      ->submitForm($edit, 'Validate HTML tags');
    $assert_session
      ->responseContains(t('@tag expected 1, found 4.', array(
      '@tag' => '<p>',
    )));
    $assert_session
      ->responseContains(t('@tag expected 1, found 2.', array(
      '@tag' => '<em>',
    )));
    $assert_session
      ->responseContains(t('@tag expected 1, found 3.', array(
      '@tag' => '</strong>',
    )));
    $assert_session
      ->pageTextContains('HTML tag validation failed for 1 field(s).');

    // Check validation errors for two fields.
    $edit = array(
      'title|deep_nesting[translation]' => '<p><p><p><p><strong><em><em>Translated text Italic and bold, many tags</em></strong></strong></strong></p>',
      'body|deep_nesting[translation]' => '<p>Source body bold and Italic</strong></em></p>',
    );
    $this
      ->submitForm($edit, 'Validate HTML tags');
    $assert_session
      ->pageTextContains('HTML tag validation failed for 2 field(s).');

    // Tests that there is always a title.
    $text = '<p><em><strong>Source text bold and Italic</strong></em></p>';
    \Drupal::state()
      ->set('tmgmt.test_source_data', [
      'title' => [
        [
          'value' => [
            '#text' => $text,
            '#label' => 'Title',
            '#translate' => TRUE,
            '#format' => 'filtered_html',
          ],
        ],
      ],
      'body' => [
        'deep_nesting' => [
          '#text' => $text,
          '#label' => 'Body',
          '#translate' => TRUE,
          '#format' => 'filtered_html',
        ],
      ],
    ]);
    $item5 = $job
      ->addItem('test_source', 'test', 4);
    $this
      ->drupalGet($item5
      ->toUrl());
    $this
      ->submitForm([], 'Validate');
    $assert_session
      ->pageTextContains('The field is empty.');

    // Test review just one data item.
    $this
      ->drupalGet('admin/tmgmt/items/' . $item5
      ->id());
    $page
      ->fillField('title|0|value[translation][value]', $text . 'translated');
    $page
      ->fillField('body|deep_nesting[translation][value]', $text . 'no save');
    $page
      ->pressButton('reviewed-title|0|value');
    $assert_session
      ->assertWaitOnAjaxRequest();

    // Check if translation has been saved.
    $this
      ->drupalGet('admin/tmgmt/items/' . $item5
      ->id());
    $this
      ->assertSession()
      ->fieldValueEquals('title|0|value[translation][value]', $text . 'translated');
    $this
      ->assertSession()
      ->fieldValueNotEquals('body|deep_nesting[translation][value]', $text . 'no save');

    // Tests field is less than max_length.
    \Drupal::state()
      ->set('tmgmt.test_source_data', [
      'title' => [
        [
          'value' => [
            '#text' => $text,
            '#label' => 'Title',
            '#translate' => TRUE,
            '#max_length' => 10,
          ],
        ],
      ],
      'body' => [
        'deep_nesting' => [
          '#text' => $text,
          '#label' => 'Body',
          '#translate' => TRUE,
          '#max_length' => 20,
        ],
      ],
    ]);
    $item5 = $job
      ->addItem('test_source', 'test', 4);
    $this
      ->drupalGet($item5
      ->toUrl());
    $this
      ->submitForm([
      'title|0|value[translation]' => $text,
      'body|deep_nesting[translation]' => $text,
    ], 'Save');
    $assert_session
      ->pageTextContains(t('The field has @size characters while the limit is @limit.', [
      '@size' => strlen($text),
      '@limit' => 10,
    ]));
    $assert_session
      ->pageTextContains(t('The field has @size characters while the limit is @limit.', [
      '@size' => strlen($text),
      '@limit' => 20,
    ]));

    // Test if the validation is properly done.
    $page
      ->pressButton('reviewed-body|deep_nesting');
    $this
      ->assertSession()
      ->pageTextContainsOnce((string) t('The field has @size characters while the limit is @limit.', [
      '@size' => strlen($text),
      '@limit' => '10',
    ]));

    // Test for the text with format set.
    \Drupal::state()
      ->set('tmgmt.test_source_data', array(
      'dummy' => array(
        'deep_nesting' => array(
          '#text' => 'Text for job item',
          '#label' => 'Label',
          '#format' => 'filtered_html',
        ),
      ),
    ));
    $item5 = $job
      ->addItem('test_source', 'test', 5);
    $item5
      ->active();
    $this
      ->drupalGet('admin/tmgmt/jobs/' . $job
      ->id());
    $assert_session
      ->pageTextContains('The translation of test_source:test:1 to German is finished and can now be reviewed.');
    $this
      ->clickLink('reviewed');
    $assert_session
      ->pageTextContains('Needs review');
    $title_element = $page
      ->find('css', 'title');
    $this
      ->assertEquals('Job item ' . $item
      ->label() . ' | Drupal', $title_element
      ->getHtml());
    $this
      ->drupalGet($job
      ->toUrl());
    $edit = array(
      'target_language' => 'de',
      'settings[action]' => 'submit',
    );
    $this
      ->submitForm($edit, 'Submit to provider');
    $this
      ->drupalGet('admin/tmgmt/items/' . $item5
      ->id());
    $xpath = $this
      ->xpath('//*[@id="edit-dummydeep-nesting-translation-format-guidelines"]/div//h4');
    $this
      ->assertEquals('Filtered HTML', $xpath[0]
      ->getHtml());
    $rows5 = $this
      ->xpath('//textarea[@name="dummy|deep_nesting[source][value]"]');
    $this
      ->assertEquals(3, (string) $rows5[0]
      ->getAttribute('rows'));
    $this
      ->submitForm([], 'Save');
    $assert_session
      ->pageTextNotContains('has been saved successfully.');
    $this
      ->drupalGet('admin/tmgmt/items/' . $item5
      ->id());
    $assert_session
      ->pageTextContains('In progress');
    $edit = array(
      'dummy|deep_nesting[translation][value]' => 'Translated text for job item',
    );
    $this
      ->submitForm($edit, 'Save');
    $assert_session
      ->pageTextContains('The translation for ' . trim($item5
      ->label()) . ' has been saved successfully.');
    $this
      ->drupalGet('admin/tmgmt/items/' . $item5
      ->id());
    $assert_session
      ->pageTextContains('Translated text for job item');
    $this
      ->submitForm($edit, 'Save as completed');
    $this
      ->assertEquals('Translated text for job item', \Drupal::state()
      ->get('tmgmt_test_saved_translation_' . $item5
      ->getItemType() . '_' . $item5
      ->getItemId())['dummy']['deep_nesting']['#translation']['#text']);

    // Test if the icons are displayed.
    $assert_session
      ->responseContains('views-field-progress">Accepted');
    $assert_session
      ->responseContains('icons/ready.svg"');
    $assert_session
      ->responseContains('title="Needs review"');
    $this
      ->loginAsAdmin();

    // Create two translators.
    $translator1 = $this
      ->createTranslator();
    $translator2 = $this
      ->createTranslator();
    $this
      ->drupalGet('admin/tmgmt/jobs');

    // Assert that translators are in dropdown list.
    $this
      ->assertSession()
      ->optionExists('edit-translator', $translator1
      ->id());
    $this
      ->assertSession()
      ->optionExists('edit-translator', $translator2
      ->id());

    // Assign each job to a translator.
    $job1 = $this
      ->createJob();
    $this
      ->drupalGet('admin/tmgmt/jobs');
    $label = trim($this
      ->xpath('//table/tbody/tr/td[2]')[0]
      ->getHtml());
    $job2 = $this
      ->createJob();
    $this
      ->drupalGet('admin/tmgmt/jobs');
    $this
      ->assertNotEmpty($label, trim($this
      ->xpath('//table/tbody/tr/td[2]')[0]
      ->getHtml()));
    $job1
      ->set('translator', $translator1
      ->id())
      ->save();
    $job2
      ->set('translator', $translator2
      ->id())
      ->save();

    // Test that progress bar is being displayed.
    $assert_session
      ->responseContains('class="tmgmt-progress tmgmt-progress-pending" style="width: 50%"');

    // Filter jobs by translator and assert values.
    $this
      ->drupalGet('admin/tmgmt/jobs', array(
      'query' => array(
        'translator' => $translator1
          ->id(),
      ),
    ));
    $label = trim($this
      ->xpath('//table/tbody/tr/td[5]')[0]
      ->getHtml());
    $this
      ->assertEquals($translator1
      ->label(), $label, 'Found provider label in table');
    $this
      ->assertNotEquals($translator2
      ->label(), $label, "Providers filtered in table");
    $this
      ->drupalGet('admin/tmgmt/jobs', array(
      'query' => array(
        'translator' => $translator2
          ->id(),
      ),
    ));
    $label = trim($this
      ->xpath('//table/tbody/tr/td[5]')[0]
      ->getHtml());
    $this
      ->assertEquals($translator2
      ->label(), $label, 'Found provider label in table');
    $this
      ->assertNotEquals($translator1
      ->label(), $label, "Providers filtered in table");
    $edit = array(
      'dummy|deep_nesting[translation]' => '',
    );
    $this
      ->drupalGet('admin/tmgmt/items/' . $item
      ->id());
    $this
      ->submitForm($edit, 'Validate');
    $assert_session
      ->pageTextContains('The field is empty.');
    $this
      ->submitForm([], 'Save');
    $assert_session
      ->pageTextNotContains('The field is empty.');
    $this
      ->drupalGet('admin/tmgmt/items/' . $item
      ->id());
    $this
      ->submitForm([], 'Save as completed');
    $assert_session
      ->pageTextContains('The field is empty.');

    // Test validation message for 'Validate' button.
    $this
      ->drupalGet('admin/tmgmt/items/' . $item
      ->id());
    $translation_field = $this
      ->randomMachineName();
    $edit = array(
      'dummy|deep_nesting[translation]' => $translation_field,
    );
    $this
      ->submitForm($edit, 'Validate');
    $assert_session
      ->pageTextContains('Validation completed successfully.');

    // Test validation message for 'Validate HTML tags' button.
    $this
      ->submitForm($edit, 'Validate HTML tags');
    $assert_session
      ->pageTextContains('Validation completed successfully.');

    // Test that normal job item are shown in job items overview.
    $this
      ->drupalGet('admin/tmgmt/job_items', array(
      'query' => array(
        'state' => 'All',
      ),
    ));
    $assert_session
      ->pageTextNotContains($job1
      ->label());

    // Test that the legend is being displayed.
    $assert_session
      ->responseContains('class="tmgmt-color-legend clearfix"');

    // Test that progress bar is being displayed.
    $assert_session
      ->responseContains('class="tmgmt-progress tmgmt-progress-reviewed" style="width: 100%"');
  }

  /**
   * Test the Revisions of a job item.
   *
   * @todo Will be extended with the diff support.
   * @todo There will be another test that checks for changes and merges with diffs.
   */
  function testItemRevision() {
    $this
      ->loginAsAdmin();

    // Create a translator.
    $translator = $this
      ->createTranslator();

    // Create a job and attach to the translator.
    $job = $this
      ->createJob();
    $job->translator = $translator;
    $job->settings = array();
    $job
      ->save();
    $job
      ->setState(Job::STATE_ACTIVE);

    // Add item to the job.
    $item = $job
      ->addItem('test_source', 'test', 1);
    $this
      ->drupalGet('admin/tmgmt/jobs/');
    $this
      ->clickLink('Manage');
    $this
      ->clickLink('View');
    $edit = [
      'dummy|deep_nesting[translation]' => 'any_value',
    ];
    $this
      ->submitForm($edit, 'Save');
    $this
      ->clickLink('Review');
    $edit = [
      'dummy|deep_nesting[translation]' => 'any_different_value',
    ];
    $this
      ->submitForm($edit, 'Save');
    $this
      ->clickLink('Review');
    $page = $this
      ->getSession()
      ->getPage();
    $page
      ->pressButton('revert-dummy|deep_nesting');
    $this
      ->assertSession()
      ->assertWaitOnAjaxRequest();
    $this
      ->assertSession()
      ->pageTextContains('Translation for dummy reverted to the latest version.');
    $this
      ->assertSession()
      ->fieldValueEquals('dummy|deep_nesting[translation]', 'any_value');
  }

  /**
   * Javascript test for the checkout form.
   */
  function testCheckoutForm() {

    // Test for job checkout form, if the target language is supported,
    // the test translator should say it is supported.
    $job = tmgmt_job_create('en', 'de', 0);
    $job
      ->save();
    $page = $this
      ->getSession()
      ->getPage();
    $assert_session = $this
      ->assertSession();
    $this
      ->drupalGet('admin/tmgmt/jobs/' . $job
      ->id());
    $page
      ->selectFieldOption('Target language', 'de');
    $this
      ->assertEquals('Test provider', $assert_session
      ->optionExists('translator', 'test_translator')
      ->getText());
  }

  /**
   * Tests update the source and show the diff of the source.
   */
  public function testSourceUpdate() {
    $page = $this
      ->getSession()
      ->getPage();
    $assert_session = $this
      ->assertSession();

    // Create the original data items.
    $job = $this
      ->createJob('en', 'de');
    $job->translator = $this->default_translator;
    $job
      ->save();
    \Drupal::state()
      ->set('tmgmt.test_source_data', [
      'title' => [
        '#label' => 'Example text 1',
        'deep_nesting' => [
          '#text' => 'Text for job item with type test and id 1.',
          '#label' => 'Example text 1',
          '#translate' => TRUE,
        ],
      ],
      'sayonara_text' => [
        '#label' => 'Example text 2',
        'deep_nesting' => [
          '#text' => 'This text will end badly.',
          '#label' => 'Example text 2',
          '#translate' => TRUE,
        ],
      ],
    ]);
    $job
      ->addItem('test_source', 'test', '1');
    $job
      ->save();
    $this
      ->drupalGet($job
      ->toUrl());
    $edit = array(
      'target_language' => 'de',
      'settings[action]' => 'submit',
    );
    $this
      ->submitForm($edit, 'Submit to provider');
    $job
      ->requestTranslation();

    // Modify the source.
    \Drupal::state()
      ->set('tmgmt.test_source_data', array(
      'title' => array(
        '#label' => 'Example text modified',
        'deep_nesting' => array(
          '#text' => 'This source has been changed.',
          '#label' => 'Example text modified',
          '#translate' => TRUE,
        ),
      ),
    ));

    // Show a message informing of the conflicts in the sources.
    $this
      ->drupalGet('admin/tmgmt/items/1');
    $assert_session
      ->pageTextContains('The source has changed.');
    $assert_session
      ->pageTextContains('This data item has been removed from the source.');

    // Show changes as diff.
    $page
      ->pressButton('diff-button-title|deep_nesting');
    $assert_session
      ->assertWaitOnAjaxRequest();
    $assert_session
      ->pageTextNotContains('The source has changed.');
    $assert_session
      ->pageTextContains('Text for job item with type test and id 1.');
    $assert_session
      ->pageTextContains('This source has been changed.');
    $assert_session
      ->pageTextContains('This data item has been removed from the source.');

    // Resolve the first data item.
    $page
      ->pressButton('resolve-diff-title|deep_nesting');
    $assert_session
      ->assertWaitOnAjaxRequest();
    $assert_session
      ->pageTextContains('The conflict in the data item source "Example text modified" has been resolved.');
    $assert_session
      ->pageTextNotContains('The source has changed.');
    $xpath = $this
      ->xpath('//*[@name="title|deep_nesting[source]"]')[0];
    $this
      ->assertEquals('This source has been changed.', $xpath
      ->getHtml());

    // Check the other data item was not modified.
    $assert_session
      ->pageTextContains('This data item has been removed from the source.');
    $assert_session
      ->pageTextContains('This text will end badly.');
  }

}