www.aleph1.co.uk Git - yaffs-website/blob - web/modules/contrib/paragraphs/src/Tests/Classic/ParagraphsAdministrationTest.php

   1 <?php
   2
   3 namespace Drupal\paragraphs\Tests\Classic;
   4
   5 use Drupal\field_ui\Tests\FieldUiTestTrait;
   6 use Drupal\paragraphs\Entity\Paragraph;
   7
   8 /**
   9  * Tests the configuration of paragraphs.
  10  *
  11  * @group paragraphs
  12  */
  13 class ParagraphsAdministrationTest extends ParagraphsTestBase {
  14
  15   use FieldUiTestTrait;
  16
  17   /**
  18    * Modules to enable.
  19    *
  20    * @var array
  21    */
  22   public static $modules = array(
  23     'image',
  24     'file',
  25     'views'
  26   );
  27
  28   /**
  29    * {@inheritdoc}
  30    */
  31   protected function setUp() {
  32     parent::setUp();
  33     // Create paragraphs content type.
  34     $this->drupalCreateContentType(array('type' => 'paragraphs', 'name' => 'Paragraphs'));
  35   }
  36   /**
  37    * Tests the revision of paragraphs.
  38    */
  39   public function testParagraphsRevisions() {
  40     $this->addParagraphedContentType('article', 'paragraphs', 'entity_reference_paragraphs');
  41     $this->loginAsAdmin([
  42       'create paragraphs content',
  43       'administer node display',
  44       'edit any paragraphs content',
  45       'administer nodes',
  46     ]);
  47
  48     // Create paragraphs type Headline + Block.
  49     $this->addParagraphsType('text');
  50     // Create field types for the text.
  51     static::fieldUIAddNewField('admin/structure/paragraphs_type/text', 'text', 'Text', 'text', array(), array());
  52     $this->assertText('Saved Text configuration.');
  53
  54     // Create an article with paragraphs field.
  55     static::fieldUIAddNewField('admin/structure/types/manage/paragraphs', 'paragraphs', 'Paragraphs', 'entity_reference_revisions', array(
  56       'settings[target_type]' => 'paragraph',
  57       'cardinality' => '-1',
  58     ), array(
  59       'settings[handler_settings][target_bundles_drag_drop][text][enabled]' => TRUE,
  60     ));
  61     // Configure article fields.
  62     $this->drupalGet('admin/structure/types/manage/paragraphs/fields');
  63     $this->clickLink(t('Manage form display'));
  64     $this->drupalPostForm(NULL, array('fields[field_paragraphs][type]' => 'entity_reference_paragraphs'), t('Save'));
  65
  66     // Create node with our paragraphs.
  67     $this->drupalGet('node/add/paragraphs');
  68     $this->drupalPostAjaxForm(NULL, array(), 'field_paragraphs_text_add_more');
  69     $this->drupalPostAjaxForm(NULL, array(), 'field_paragraphs_text_add_more');
  70     $edit = [
  71       'title[0][value]' => 'TEST TITEL',
  72       'field_paragraphs[0][subform][field_text][0][value]' => 'Test text 1',
  73       'field_paragraphs[1][subform][field_text][0][value]' => 'Test text 2',
  74       'status[value]' => TRUE,
  75     ];
  76     $this->drupalPostForm(NULL, $edit, t('Save'));
  77
  78     $node = $this->drupalGetNodeByTitle('TEST TITEL');
  79     $paragraph1 = $node->field_paragraphs[0]->target_id;
  80     $paragraph2 = $node->field_paragraphs[1]->target_id;
  81
  82     $this->countRevisions($node, $paragraph1, $paragraph2, 1);
  83
  84     // Edit the node without creating a revision. There should still be only 1
  85     // revision for nodes and paragraphs.
  86     $edit = [
  87       'field_paragraphs[0][subform][field_text][0][value]' => 'Foo Bar 1',
  88       'revision' => FALSE,
  89     ];
  90     $this->drupalPostForm('node/' . $node->id() . '/edit', $edit, t('Save'));
  91
  92     $this->countRevisions($node, $paragraph1, $paragraph2, 1);
  93
  94     // Edit the just created node. Create new revision. Now we should have 2
  95     // revisions for nodes and paragraphs.
  96     $edit = [
  97       'title[0][value]' => 'TEST TITLE',
  98       'field_paragraphs[0][subform][field_text][0][value]' => 'Foo Bar 2',
  99       'revision' => TRUE,
 100     ];
 101     $this->drupalPostForm('node/' . $node->id() . '/edit', $edit, t('Save'));
 102
 103     $this->countRevisions($node, $paragraph1, $paragraph2, 2);
 104
 105     // Assert the paragraphs have been changed.
 106     $this->assertNoText('Foo Bar 1');
 107     $this->assertText('Test text 2');
 108     $this->assertText('Foo Bar 2');
 109     $this->assertText('TEST TITLE');
 110
 111     // Check out the revisions page and assert there are 2 revisions.
 112     $this->drupalGet('node/' . $node->id() . '/revisions');
 113     $rows = $this->xpath('//tbody/tr');
 114     // Make sure two revisions available.
 115     $this->assertEqual(count($rows), 2);
 116     // Revert to the old version.
 117     $this->clickLink(t('Revert'));
 118     $this->drupalPostForm(NULL, [], t('Revert'));
 119     $this->drupalGet('node/' . $node->id());
 120     // Assert the node has been reverted.
 121     $this->assertNoText('Foo Bar 2');
 122     $this->assertText('Test text 2');
 123     $this->assertText('Foo Bar 1');
 124     $this->assertText('TEST TITEL');
 125   }
 126
 127
 128   /**
 129    * Tests the paragraph creation.
 130    */
 131   public function testParagraphsCreation() {
 132     // Create an article with paragraphs field.
 133     $this->addParagraphedContentType('article', 'field_paragraphs', 'entity_reference_paragraphs');
 134     $this->loginAsAdmin([
 135       'administer site configuration',
 136       'create article content',
 137       'create paragraphs content',
 138       'administer node display',
 139       'administer paragraph display',
 140       'edit any article content',
 141       'delete any article content',
 142       'access files overview',
 143     ]);
 144
 145     // Assert suggested 'Add a paragraph type' link when there is no type yet.
 146     $this->drupalGet('admin/structure/paragraphs_type');
 147     $this->assertText('There is no Paragraphs type yet.');
 148     $this->drupalGet('admin/structure/types/manage/paragraphs/fields/add-field');
 149     $edit = [
 150       'new_storage_type' => 'field_ui:entity_reference_revisions:paragraph',
 151       'label' => 'Paragraph',
 152       'field_name' => 'paragraph',
 153     ];
 154     $this->drupalPostForm(NULL, $edit, 'Save and continue');
 155     $this->drupalPostForm(NULL, [], 'Save field settings');
 156     $this->assertLinkByHref('admin/structure/paragraphs_type/add');
 157     $this->clickLink('here');
 158     $this->assertUrl('admin/structure/paragraphs_type/add');
 159
 160     $this->drupalGet('admin/structure/paragraphs_type');
 161     $this->clickLink(t('Add paragraph type'));
 162     $this->assertTitle('Add Paragraphs type | Drupal');
 163     // Create paragraph type text + image.
 164     $this->addParagraphsType('text_image');
 165     $this->drupalGet('admin/structure/paragraphs_type/text_image');
 166     $this->assertTitle('Edit text_image paragraph type | Drupal');
 167     // Create field types for text and image.
 168     static::fieldUIAddNewField('admin/structure/paragraphs_type/text_image', 'text', 'Text', 'text_long', array(), array());
 169     $this->assertText('Saved Text configuration.');
 170     static::fieldUIAddNewField('admin/structure/paragraphs_type/text_image', 'image', 'Image', 'image', array(), array('settings[alt_field_required]' => FALSE));
 171     $this->assertText('Saved Image configuration.');
 172
 173     // Create paragraph type Nested test.
 174     $this->addParagraphsType('nested_test');
 175
 176     static::fieldUIAddNewField('admin/structure/paragraphs_type/nested_test', 'paragraphs', 'Paragraphs', 'entity_reference_revisions', array(
 177       'settings[target_type]' => 'paragraph',
 178       'cardinality' => '-1',
 179     ), array());
 180
 181     // Change the add more button to select mode.
 182     $this->clickLink(t('Manage form display'));
 183     $this->drupalPostAjaxForm(NULL, ['fields[field_paragraphs][type]' => 'entity_reference_paragraphs'], 'field_paragraphs_settings_edit');
 184     $this->drupalPostForm(NULL, ['fields[field_paragraphs][settings_edit_form][settings][add_mode]' => 'select'], t('Update'));
 185     $this->drupalPostForm(NULL, [], t('Save'));
 186
 187     // Create paragraph type image.
 188     $this->addParagraphsType('image');
 189     // Create field types for image.
 190     static::fieldUIAddNewField('admin/structure/paragraphs_type/image', 'image_only', 'Image only', 'image', array(), array());
 191     $this->assertText('Saved Image only configuration.');
 192
 193     $this->drupalGet('admin/structure/paragraphs_type');
 194     $rows = $this->xpath('//tbody/tr');
 195     // Make sure 2 types are available with their label.
 196     $this->assertEqual(count($rows), 3);
 197     $this->assertText('text_image');
 198     $this->assertText('image');
 199     // Make sure there is an edit link for each type.
 200     $this->clickLink(t('Edit'));
 201     // Make sure the field UI appears.
 202     $this->assertLink('Manage fields');
 203     $this->assertLink('Manage form display');
 204     $this->assertLink('Manage display');
 205     $this->assertTitle('Edit image paragraph type | Drupal');
 206
 207     // Test for "Add mode" setting.
 208     $this->drupalGet('admin/structure/types/manage/article/form-display');
 209     $field_name = 'field_paragraphs';
 210
 211     // Click on the widget settings button to open the widget settings form.
 212     $this->drupalPostAjaxForm(NULL, array(), $field_name . "_settings_edit");
 213
 214     // Enable setting.
 215     $edit = array('fields[' . $field_name . '][settings_edit_form][settings][add_mode]' => 'button');
 216     $this->drupalPostForm(NULL, $edit, t('Save'));
 217
 218     // Check if the setting is stored.
 219     $this->drupalGet('admin/structure/types/manage/article/form-display');
 220     $this->assertText('Add mode: Buttons', 'Checking the settings value.');
 221
 222     $this->drupalPostAjaxForm(NULL, array(), $field_name . "_settings_edit");
 223     // Assert the 'Buttons' option is selected.
 224     $this->assertOptionSelected('edit-fields-field-paragraphs-settings-edit-form-settings-add-mode', 'button', 'Updated value is correct!.');
 225
 226     // Add two Text + Image paragraphs in article.
 227     $this->drupalGet('node/add/article');
 228
 229     // Checking changes on article.
 230     $this->assertRaw('<div class="paragraphs-dropbutton-wrapper"><input', 'Updated value in article.');
 231
 232     $this->drupalPostAjaxForm(NULL, array(), 'field_paragraphs_text_image_add_more');
 233     $this->drupalPostAjaxForm(NULL, array(), 'field_paragraphs_text_image_add_more');
 234     // Create an 'image' file, upload it.
 235     $text = 'Trust me I\'m an image';
 236     file_put_contents('temporary://myImage1.jpg', $text);
 237     file_put_contents('temporary://myImage2.jpg', $text);
 238
 239     $edit = array(
 240       'title[0][value]' => 'Test article',
 241       'field_paragraphs[0][subform][field_text][0][value]' => 'Test text 1',
 242       'files[field_paragraphs_0_subform_field_image_0]' => drupal_realpath('temporary://myImage1.jpg'),
 243       'field_paragraphs[1][subform][field_text][0][value]' => 'Test text 2',
 244       'files[field_paragraphs_1_subform_field_image_0]' => drupal_realpath('temporary://myImage2.jpg'),
 245     );
 246     $this->drupalPostForm(NULL, $edit, t('Save'));
 247
 248     $node = $this->drupalGetNodeByTitle('Test article');
 249     $img1_url = file_create_url(\Drupal::token()->replace('public://[date:custom:Y]-[date:custom:m]/myImage1.jpg'));
 250     $img2_url = file_create_url(\Drupal::token()->replace('public://[date:custom:Y]-[date:custom:m]/myImage2.jpg'));
 251
 252     // Check the text and image after publish.
 253     $this->assertText('Test text 1');
 254     $this->assertRaw('<img src="' . file_url_transform_relative($img1_url));
 255     $this->assertText('Test text 2');
 256     $this->assertRaw('<img src="' . file_url_transform_relative($img2_url));
 257
 258     // Tests for "Edit mode" settings.
 259     // Test for closed setting.
 260     $this->drupalGet('admin/structure/types/manage/article/form-display');
 261     // Click on the widget settings button to open the widget settings form.
 262     $this->drupalPostAjaxForm(NULL, array(), "field_paragraphs_settings_edit");
 263     // Enable setting.
 264     $edit = array('fields[field_paragraphs][settings_edit_form][settings][edit_mode]' => 'closed');
 265     $this->drupalPostForm(NULL, $edit, t('Save'));
 266     // Check if the setting is stored.
 267     $this->assertText('Edit mode: Closed', 'Checking the settings value.');
 268     $this->drupalPostAjaxForm(NULL, array(), "field_paragraphs_settings_edit");
 269     // Assert the 'Closed' option is selected.
 270     $this->assertOptionSelected('edit-fields-field-paragraphs-settings-edit-form-settings-edit-mode', 'closed', 'Updated value correctly.');
 271     $this->drupalGet('node/1/edit');
 272     // The textareas for paragraphs should not be visible.
 273     $this->assertNoRaw('field_paragraphs[0][subform][field_text][0][value]');
 274     $this->assertNoRaw('field_paragraphs[1][subform][field_text][0][value]');
 275     $this->assertRaw('<div class="paragraphs-collapsed-description">myImage1.jpg, Test text 1');
 276     $this->assertRaw('<div class="paragraphs-collapsed-description">myImage2.jpg, Test text 2');
 277
 278     // Test for preview option.
 279     $this->drupalGet('admin/structure/types/manage/article/form-display');
 280     $this->drupalPostAjaxForm(NULL, array(), "field_paragraphs_settings_edit");
 281     $edit = array('fields[field_paragraphs][settings_edit_form][settings][edit_mode]' => 'preview');
 282     $this->drupalPostForm(NULL, $edit, t('Save'));
 283     $this->assertText('Edit mode: Preview', 'Checking the settings value.');
 284     $this->drupalGet('node/1/edit');
 285     // The texts in the paragraphs should be visible.
 286     $this->assertNoRaw('field_paragraphs[0][subform][field_text][0][value]');
 287     $this->assertNoRaw('field_paragraphs[1][subform][field_text][0][value]');
 288     $this->assertText('Test text 1');
 289     $this->assertText('Test text 2');
 290
 291     // Test for open option.
 292     $this->drupalGet('admin/structure/types/manage/article/form-display');
 293     $this->drupalPostAjaxForm(NULL, array(), "field_paragraphs_settings_edit");
 294     // Assert the 'Preview' option is selected.
 295     $this->assertOptionSelected('edit-fields-field-paragraphs-settings-edit-form-settings-edit-mode', 'preview', 'Updated value correctly.');
 296     // Restore the value to Open for next test.
 297     $edit = array('fields[field_paragraphs][settings_edit_form][settings][edit_mode]' => 'open');
 298     $this->drupalPostForm(NULL, $edit, t('Save'));
 299     $this->drupalGet('node/1/edit');
 300     // The textareas for paragraphs should be visible.
 301     $this->assertRaw('field_paragraphs[0][subform][field_text][0][value]');
 302     $this->assertRaw('field_paragraphs[1][subform][field_text][0][value]');
 303
 304     $paragraphs = Paragraph::loadMultiple();
 305     $this->assertEqual(count($paragraphs), 2, 'Two paragraphs in article');
 306
 307     // Check article edit page.
 308     $this->drupalGet('node/' . $node->id() . '/edit');
 309     // Check both paragraphs in edit page.
 310     $this->assertFieldByName('field_paragraphs[0][subform][field_text][0][value]', 'Test text 1');
 311     $this->assertRaw('<a href="' . $img1_url . '" type="image/jpeg; length=21">myImage1.jpg</a>');
 312     $this->assertFieldByName('field_paragraphs[1][subform][field_text][0][value]', 'Test text 2');
 313     $this->assertRaw('<a href="' . $img2_url . '" type="image/jpeg; length=21">myImage2.jpg</a>');
 314     // Remove 2nd paragraph.
 315     $this->drupalPostForm(NULL, NULL, t('Remove'));
 316     $this->assertNoField('field_paragraphs[1][subform][field_text][0][value]');
 317     $this->assertNoRaw('<a href="' . $img2_url . '" type="image/jpeg; length=21">myImage2.jpg</a>');
 318     // Restore it again.
 319     $this->drupalPostForm(NULL, NULL, t('Restore'));
 320     $this->assertFieldByName('field_paragraphs[1][subform][field_text][0][value]', 'Test text 2');
 321     $this->assertRaw('<a href="' . $img2_url . '" type="image/jpeg; length=21">myImage2.jpg</a>');
 322     // Remove the second paragraph.
 323     $this->drupalPostForm(NULL, [], t('Remove'));
 324     $this->assertNoRaw('<a href="' . $img2_url . '" type="image/jpeg; length=21">myImage2.jpg</a>');
 325     $edit = [
 326       'field_paragraphs[0][subform][field_image][0][alt]' => 'test_alt',
 327       'field_paragraphs[0][subform][field_image][0][width]' => 300,
 328       'field_paragraphs[0][subform][field_image][0][height]' => 300,
 329     ];
 330     $this->drupalPostForm(NULL, $edit, t('Save'));
 331     // Assert the paragraph is deleted after the user saves the node.
 332     $this->drupalGet('node/' . $node->id() . '/edit');
 333     $this->assertNoRaw('<a href="' . $img2_url . '" type="image/jpeg; length=21">myImage2.jpg</a>');
 334
 335     // Delete the node.
 336     $this->clickLink(t('Delete'));
 337     $this->drupalPostForm(NULL, NULL, t('Delete'));
 338     $this->assertText('Test article has been deleted.');
 339
 340     // Check if the publish/unpublish option works.
 341     $this->drupalGet('admin/structure/paragraphs_type/text_image/form-display');
 342     $edit = [
 343       'fields[status][type]' => 'boolean_checkbox',
 344       'fields[status][region]' => 'content',
 345     ];
 346
 347     $this->drupalPostForm(NULL, $edit, t('Save'));
 348     $this->drupalGet('node/add/article');
 349     $this->drupalPostForm(NULL, NULL, t('Add text_image'));
 350     $this->assertRaw('edit-field-paragraphs-0-subform-status-value');
 351     $edit = [
 352       'title[0][value]' => 'Example publish/unpublish',
 353       'field_paragraphs[0][subform][field_text][0][value]' => 'Example published and unpublished',
 354     ];
 355     $this->drupalPostForm(NULL, $edit, t('Save'));
 356     $this->assertText(t('Example published and unpublished'));
 357     $this->clickLink(t('Edit'));
 358     $edit = [
 359       'field_paragraphs[0][subform][status][value]' => FALSE,
 360     ];
 361     $this->drupalPostForm(NULL, $edit, t('Save'));
 362     $this->assertNoText(t('Example published and unpublished'));
 363
 364     // Set the fields as required.
 365     $this->drupalGet('admin/structure/types/manage/article/fields');
 366     $this->clickLink('Edit', 1);
 367     $this->drupalPostForm(NULL, ['preview_mode' => '1'], t('Save content type'));
 368     $this->drupalGet('admin/structure/paragraphs_type/nested_test/fields');
 369     $this->clickLink('Edit');
 370     $this->drupalPostForm(NULL, ['required' => TRUE], t('Save settings'));
 371
 372     // Add a new article.
 373     $this->drupalGet('node/add/article');
 374     $this->drupalPostAjaxForm(NULL, [], 'field_paragraphs_nested_test_add_more');
 375     $edit = [
 376       'field_paragraphs[0][subform][field_paragraphs][add_more][add_more_select]' => 'image',
 377     ];
 378     $this->drupalPostAjaxForm(NULL, $edit, 'field_paragraphs_0_subform_field_paragraphs_add_more');
 379     // Test the new field is displayed.
 380     $this->assertFieldByName('files[field_paragraphs_0_subform_field_paragraphs_0_subform_field_image_only_0]');
 381
 382     // Add an image to the required field.
 383     $edit = array(
 384       'title[0][value]' => 'test required',
 385       'files[field_paragraphs_0_subform_field_paragraphs_0_subform_field_image_only_0]' => drupal_realpath('temporary://myImage2.jpg'),
 386     );
 387     $this->drupalPostForm(NULL, $edit, t('Save'));
 388     $edit = [
 389       'field_paragraphs[0][subform][field_paragraphs][0][subform][field_image_only][0][width]' => 100,
 390       'field_paragraphs[0][subform][field_paragraphs][0][subform][field_image_only][0][height]' => 100,
 391       'field_paragraphs[0][subform][field_paragraphs][0][subform][field_image_only][0][alt]' => 'Alternative_text',
 392     ];
 393     $this->drupalPostForm(NULL, $edit, t('Save'));
 394     $this->assertText('test required has been created.');
 395     $this->assertNoRaw('This value should not be null.');
 396
 397     // Test that unsupported widgets are not displayed.
 398     $this->drupalGet('admin/structure/types/manage/article/form-display');
 399     $select = $this->xpath('//*[@id="edit-fields-field-paragraphs-type"]')[0];
 400     $this->assertEqual(count($select->option), 2);
 401     $this->assertRaw('value="entity_reference_paragraphs" selected="selected"');
 402
 403     // Check that Paragraphs is not displayed as an entity_reference field
 404     // reference option.
 405     $this->drupalGet('admin/structure/types/manage/article/fields/add-field');
 406     $edit = [
 407       'new_storage_type' => 'entity_reference',
 408       'label' => 'unsupported field',
 409       'field_name' => 'unsupportedfield',
 410     ];
 411     $this->drupalPostForm(NULL, $edit, t('Save and continue'));
 412     $this->assertNoOption('edit-settings-target-type', 'paragraph');
 413
 414     // Test that all Paragraph types can be referenced if none is selected.
 415     $this->addParagraphsType('nested_double_test');
 416     static::fieldUIAddExistingField('admin/structure/paragraphs_type/nested_double_test', 'field_paragraphs', 'paragraphs_1');
 417     $this->clickLink(t('Manage form display'));
 418     $this->drupalPostForm(NULL, [], 'Save');
 419     //$this->drupalPostForm(NULL, array('fields[field_paragraphs][type]' => 'entity_reference_revisions_entity_view'), t('Save'));
 420     static::fieldUIAddNewField('admin/structure/paragraphs_type/nested_double_test', 'paragraphs_2', 'paragraphs_2', 'entity_reference_revisions', array(
 421       'settings[target_type]' => 'paragraph',
 422       'cardinality' => '-1',
 423     ), array());
 424     $this->clickLink(t('Manage form display'));
 425     $this->drupalPostForm(NULL, [], 'Save');
 426     $this->drupalPostAjaxForm('node/add/article', [], 'field_paragraphs_nested_test_add_more');
 427     $edit = [
 428       'field_paragraphs[0][subform][field_paragraphs][add_more][add_more_select]' => 'nested_double_test',
 429     ];
 430     $this->drupalPostAjaxForm(NULL, $edit, 'field_paragraphs_0_subform_field_paragraphs_add_more');
 431     $this->drupalPostAjaxForm(NULL, [], 'field_paragraphs_0_subform_field_paragraphs_0_subform_field_paragraphs_image_add_more');
 432     $edit = array(
 433       'title[0][value]' => 'Nested twins',
 434     );
 435     $this->drupalPostForm(NULL, $edit, t('Save'));
 436     $this->assertText('Nested twins has been created.');
 437     $this->assertNoText('This entity (paragraph: ) cannot be referenced.');
 438
 439     // Set the fields as not required.
 440     $this->drupalGet('admin/structure/types/manage/article/fields');
 441     $this->clickLink('Edit', 1);
 442     $this->drupalPostForm(NULL, ['required' => FALSE], t('Save settings'));
 443
 444     // Set the Paragraph field edit mode to 'Closed'.
 445     $this->drupalPostAjaxForm('admin/structure/types/manage/article/form-display', [], 'field_paragraphs_settings_edit');
 446     $this->drupalPostForm(NULL, ['fields[field_paragraphs][settings_edit_form][settings][edit_mode]' => 'closed'], t('Update'));
 447     $this->drupalPostForm(NULL, [], t('Save'));
 448
 449     $this->addParagraphsType('node_test');
 450
 451     // Add a required node reference field.
 452     static::fieldUIAddNewField('admin/structure/paragraphs_type/node_test', 'entity_reference', 'Entity reference', 'entity_reference', array(
 453       'settings[target_type]' => 'node',
 454       'cardinality' => '-1'
 455     ), [
 456       'settings[handler_settings][target_bundles][article]' => TRUE,
 457       'required' => TRUE,
 458     ]);
 459     $node = $this->drupalGetNodeByTitle('Nested twins');
 460
 461     // Create a node with a reference in a Paragraph.
 462     $this->drupalPostAjaxForm('node/add/article', [], 'field_paragraphs_node_test_add_more');
 463     \Drupal::service('entity_field.manager')->clearCachedFieldDefinitions();
 464     $edit = [
 465       'field_paragraphs[0][subform][field_entity_reference][0][target_id]' => $node->label() . ' (' . $node->id() . ')',
 466       'title[0][value]' => 'choke test',
 467     ];
 468     $this->drupalPostForm(NULL, $edit, t('Save'));
 469     // Delete the referenced node.
 470     $node->delete();
 471     // Edit the node with the reference.
 472     $this->clickLink(t('Edit'));
 473     // Since we have validation error (reference to deleted node), paragraph is
 474     // by default in edit mode.
 475     $this->assertFieldByName('field_paragraphs[0][subform][field_entity_reference][0][target_id]');
 476     $this->assertFieldByName('field_paragraphs[0][subform][field_entity_reference][1][target_id]');
 477     // Assert the validation error message.
 478     $this->assertText('The referenced entity (node: 4) does not exist');
 479     // Triggering unrelated button, assert that error message is still present.
 480     $this->drupalPostForm(NULL, [], t('Add another item'));
 481     $this->assertText('The referenced entity (node: 4) does not exist');
 482     $this->assertText('Entity reference (value 1) field is required.');
 483     // Try to collapse with an invalid reference.
 484     $this->drupalPostAjaxForm(NULL, ['field_paragraphs[0][subform][field_entity_reference][0][target_id]' => 'foo'], 'field_paragraphs_0_collapse');
 485     // Paragraph should be still in edit mode.
 486     $this->assertFieldByName('field_paragraphs[0][subform][field_entity_reference][0][target_id]');
 487     $this->assertFieldByName('field_paragraphs[0][subform][field_entity_reference][1][target_id]');
 488     $this->drupalPostForm(NULL, [], t('Add another item'));
 489     // Assert the validation message.
 490     $this->assertText('There are no entities matching "foo".');
 491     // Attempt to remove the Paragraph.
 492     $this->drupalPostAjaxForm(NULL, [], 'field_paragraphs_0_remove');
 493     $elements = $this->xpath('//*[@name="field_paragraphs_0_confirm_remove"]');
 494     $this->assertTrue(!empty($elements), "'Confirm removal' button appears.");
 495     // Restore the Paragraph and fix the broken reference.
 496     $this->drupalPostAjaxForm(NULL, [], 'field_paragraphs_0_restore');
 497     $node = $this->drupalGetNodeByTitle('Example publish/unpublish');
 498     $edit = ['field_paragraphs[0][subform][field_entity_reference][0][target_id]' => $node->label() . ' (' . $node->id() . ')'];
 499     $this->drupalPostForm(NULL, $edit, t('Save'));
 500     $this->assertText('choke test has been updated.');
 501     $this->assertLink('Example publish/unpublish');
 502     // Delete the new referenced node.
 503     $node->delete();
 504
 505     // Set the Paragraph field edit mode to 'Preview'.
 506     $this->drupalPostAjaxForm('admin/structure/types/manage/article/form-display', [], 'field_paragraphs_settings_edit');
 507     $this->drupalPostForm(NULL, ['fields[field_paragraphs][settings_edit_form][settings][edit_mode]' => 'preview'], t('Update'));
 508     $this->drupalPostForm(NULL, [], t('Save'));
 509
 510     $node = $this->drupalGetNodeByTitle('choke test');
 511     // Attempt to edit the Paragraph.
 512     $this->drupalPostAjaxForm('node/' . $node->id() . '/edit', [], 'field_paragraphs_0_edit');
 513     // Try to save with an invalid reference.
 514     $edit = ['field_paragraphs[0][subform][field_entity_reference][0][target_id]' => 'foo'];
 515     $this->drupalPostForm(NULL, $edit, t('Save'));
 516     $this->assertText('There are no entities matching "foo".');
 517     // Remove the Paragraph and save the node.
 518     $this->drupalPostAjaxForm(NULL, [], 'field_paragraphs_0_remove');
 519     $elements = $this->xpath('//*[@name="field_paragraphs_0_confirm_remove"]');
 520     $this->assertTrue(!empty($elements), "'Confirm removal' button appears.");
 521     $this->drupalPostAjaxForm(NULL, [], 'field_paragraphs_0_confirm_remove');
 522     $this->drupalPostForm(NULL, [], t('Save'));
 523     $this->assertText('choke test has been updated.');
 524
 525     // Verify that the text displayed is correct when no paragraph has been
 526     // added yet.
 527     $this->drupalGet('node/add/article');
 528     $this->assertText('No Paragraph added yet.');
 529
 530     $this->drupalGet('admin/content/files');
 531     $this->clickLink('1 place');
 532     $label = $this->xpath('//tbody/tr/td[1]');
 533     $this->assertEqual(trim(htmlspecialchars_decode(strip_tags($label[0]->asXML()))), 'test required > field_paragraphs > Paragraphs');
 534   }
 535
 536   /**
 537    * Asserts that a select option in the current page is checked.
 538    *
 539    * @param string $id
 540    *   ID of select field to assert.
 541    * @param string $option
 542    *   Option to assert.
 543    * @param string $message
 544    *   (optional) A message to display with the assertion. Do not translate
 545    *   messages: use format_string() to embed variables in the message text, not
 546    *   t(). If left blank, a default message will be displayed.
 547    * @param string $group
 548    *   (optional) The group this message is in, which is displayed in a column
 549    *   in test output. Use 'Debug' to indicate this is debugging output. Do not
 550    *   translate this string. Defaults to 'Browser'; most tests do not override
 551    *   this default.
 552    *
 553    * @return bool
 554    *   TRUE on pass, FALSE on fail.
 555    *
 556    * @todo Remove function once core issue is resolved: https://www.drupal.org/node/2530092
 557    */
 558   protected function assertOptionSelected($id, $option, $message = '', $group = 'Browser') {
 559     $elements = $this->xpath('//select[contains(@id, :id)]//option[@value=:option]', array(':id' => $id, ':option' => $option));
 560     return $this->assertTrue(isset($elements[0]) && !empty($elements[0]['selected']), $message ? $message : SafeMarkup::format('Option @option for field @id is selected.', array('@option' => $option, '@id' => $id)), $group);
 561   }
 562
 563   /**
 564    * Helper function for revision counting.
 565    */
 566   private function countRevisions($node, $paragraph1, $paragraph2, $revisions_count) {
 567     $node_revisions_count = \Drupal::entityQuery('node')->condition('nid', $node->id())->allRevisions()->count()->execute();
 568     $this->assertEqual($node_revisions_count, $revisions_count);
 569     $this->assertEqual(\Drupal::entityQuery('paragraph')->condition('id', $paragraph1)->allRevisions()->count()->execute(), $revisions_count);
 570     $this->assertEqual(\Drupal::entityQuery('paragraph')->condition('id', $paragraph2)->allRevisions()->count()->execute(), $revisions_count);
 571   }
 572
 573 }