From 522ab1710138d114bdbafb34764d91ad7f57691c Mon Sep 17 00:00:00 2001
From: Alex Pott <alex.a.pott@googlemail.com>
Date: Thu, 21 Jun 2018 09:16:23 +0100
Subject: [PATCH] Issue #2828528 by Wim Leers, droplet, ZeiP, vaplas,
 tacituseu, samuel.mortenson, michielnugter: Add Quick Edit Functional JS test
 coverage

---
 .../QuickEditImageEditorTestTrait.php         |  76 ++++
 .../QuickEditImageTest.php                    | 121 +++---
 .../QuickEditIntegrationTest.php              | 343 ++++++++++++++++++
 .../QuickEditJavascriptTestBase.php           | 326 +++++++++++++++++
 4 files changed, 822 insertions(+), 44 deletions(-)
 create mode 100644 core/modules/image/tests/src/FunctionalJavascript/QuickEditImageEditorTestTrait.php
 create mode 100644 core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditIntegrationTest.php
 create mode 100644 core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditJavascriptTestBase.php

diff --git a/core/modules/image/tests/src/FunctionalJavascript/QuickEditImageEditorTestTrait.php b/core/modules/image/tests/src/FunctionalJavascript/QuickEditImageEditorTestTrait.php
new file mode 100644
index 000000000000..704e4e702014
--- /dev/null
+++ b/core/modules/image/tests/src/FunctionalJavascript/QuickEditImageEditorTestTrait.php
@@ -0,0 +1,76 @@
+<?php
+
+namespace Drupal\Tests\image\FunctionalJavascript;
+
+/**
+ * @see \Drupal\image\Plugin\InPlaceEditor\Image
+ * @see \Drupal\Tests\quickedit\FunctionalJavascript\QuickEditJavascriptTestBase
+ */
+trait QuickEditImageEditorTestTrait {
+
+  /**
+   * Awaits the 'image' in-place editor.
+   */
+  protected function awaitImageEditor() {
+    $this->assertJsCondition('document.querySelector(".quickedit-image-field-info") !== null', 10000);
+
+    $quickedit_entity_toolbar = $this->getSession()->getPage()->findById('quickedit-entity-toolbar');
+    $this->assertNotNull($quickedit_entity_toolbar->find('css', 'form.quickedit-image-field-info input[name="alt"]'));
+  }
+
+  /**
+   * Simulates typing in the 'image' in-place editor 'alt' attribute text input.
+   *
+   * @param string $text
+   *   The text to type.
+   */
+  protected function typeInImageEditorAltTextInput($text) {
+    $quickedit_entity_toolbar = $this->getSession()->getPage()->findById('quickedit-entity-toolbar');
+    $input = $quickedit_entity_toolbar->find('css', 'form.quickedit-image-field-info input[name="alt"]');
+    $input->setValue($text);
+  }
+
+  /**
+   * Simulates dragging and dropping an image on the 'image' in-place editor.
+   *
+   * @param string $file_uri
+   *   The URI of the image file to drag and drop.
+   */
+  protected function dropImageOnImageEditor($file_uri) {
+    // Our headless browser can't drag+drop files, but we can mock the event.
+    // Append a hidden upload element to the DOM.
+    $script = 'jQuery("<input id=\"quickedit-image-test-input\" type=\"file\" />").appendTo("body")';
+    $this->getSession()->executeScript($script);
+
+    // Find the element, and set its value to our new image.
+    $input = $this->assertSession()->elementExists('css', '#quickedit-image-test-input');
+    $filepath = $this->container->get('file_system')->realpath($file_uri);
+    $input->attachFile($filepath);
+
+    // Trigger the upload logic with a mock "drop" event.
+    $script = 'var e = jQuery.Event("drop");'
+      . 'e.originalEvent = {dataTransfer: {files: jQuery("#quickedit-image-test-input").get(0).files}};'
+      . 'e.preventDefault = e.stopPropagation = function () {};'
+      . 'jQuery(".quickedit-image-dropzone").trigger(e);';
+    $this->getSession()->executeScript($script);
+
+    // Wait for the dropzone element to be removed (i.e. loading is done).
+    $js_condition = <<<JS
+function () {
+  var activeFieldID = Drupal.quickedit.collections.entities
+    .findWhere({state:'opened'})
+    .get('fields')
+    .filter(function (fieldModel) {
+      var state = fieldModel.get('state');
+        return state === 'active' || state === 'changed';
+    })[0]
+    .get('fieldID')
+  return document.querySelector('[data-quickedit-field-id="' + activeFieldID + '"] .quickedit-image-dropzone') === null;
+}();
+JS;
+
+    $this->assertJsCondition($js_condition, 20000);
+
+  }
+
+}
diff --git a/core/modules/image/tests/src/FunctionalJavascript/QuickEditImageTest.php b/core/modules/image/tests/src/FunctionalJavascript/QuickEditImageTest.php
index 12e43e75850b..b4444eff2b09 100644
--- a/core/modules/image/tests/src/FunctionalJavascript/QuickEditImageTest.php
+++ b/core/modules/image/tests/src/FunctionalJavascript/QuickEditImageTest.php
@@ -3,24 +3,24 @@
 namespace Drupal\Tests\image\FunctionalJavascript;
 
 use Drupal\file\Entity\File;
-use Drupal\FunctionalJavascriptTests\JavascriptTestBase;
 use Drupal\Tests\image\Kernel\ImageFieldCreationTrait;
+use Drupal\Tests\quickedit\FunctionalJavascript\QuickEditJavascriptTestBase;
 use Drupal\Tests\TestFileCreationTrait;
 
 /**
- * Tests the JavaScript functionality of the "image" in-place editor.
- *
+ * @coversDefaultClass \Drupal\image\Plugin\InPlaceEditor\Image
  * @group image
  */
-class QuickEditImageTest extends JavascriptTestBase {
+class QuickEditImageTest extends QuickEditJavascriptTestBase {
 
   use ImageFieldCreationTrait;
   use TestFileCreationTrait;
+  use QuickEditImageEditorTestTrait;
 
   /**
    * {@inheritdoc}
    */
-  public static $modules = ['node', 'image', 'field_ui', 'contextual', 'quickedit', 'toolbar'];
+  public static $modules = ['node', 'image', 'field_ui'];
 
   /**
    * A user with permissions to edit Articles and use Quick Edit.
@@ -52,9 +52,12 @@ protected function setUp() {
   }
 
   /**
-   * Tests if an image can be uploaded inline with Quick Edit.
+   * Test that quick editor works correctly with images.
+   *
+   * @covers ::isCompatible
+   * @covers ::getAttachments
    */
-  public function testUpload() {
+  public function testImageInPlaceEditor() {
     // Create a field with a basic filetype restriction.
     $field_name = strtolower($this->randomMachineName());
     $field_settings = [
@@ -114,52 +117,82 @@ public function testUpload() {
     // Assert that the initial image is present.
     $this->assertSession()->elementExists('css', $entity_selector . ' ' . $field_selector . ' ' . $original_image_selector);
 
-    // Wait until Quick Edit loads.
-    $condition = "jQuery('" . $entity_selector . " .quickedit').length > 0";
-    $this->assertJsCondition($condition, 10000);
-
-    // Initiate Quick Editing.
-    $this->click('.contextual-toolbar-tab button');
-    $this->click($entity_selector . ' [data-contextual-id] > button');
-    $this->click($entity_selector . ' [data-contextual-id] .quickedit > a');
-    $this->click($field_selector);
+    // Initial state.
+    $this->awaitQuickEditForEntity('node', 1);
+    $this->assertEntityInstanceStates([
+      'node/1[0]' => 'closed',
+    ]);
+    $this->assertEntityInstanceFieldStates('node', 1, 0, [
+      'node/1/title/en/full'               => 'inactive',
+      'node/1/uid/en/full'                 => 'inactive',
+      'node/1/created/en/full'             => 'inactive',
+      'node/1/body/en/full'                => 'inactive',
+      'node/1/' . $field_name . '/en/full' => 'inactive',
+    ]);
 
-    // Wait for the field info to load and set new alt text.
-    $condition = "jQuery('.quickedit-image-field-info').length > 0";
-    $this->assertJsCondition($condition, 10000);
-    $input = $this->assertSession()->elementExists('css', '.quickedit-image-field-info input[name="alt"]');
-    $input->setValue('New text');
+    // Start in-place editing of the article node.
+    $this->startQuickEditViaToolbar('node', 1, 0);
+    $this->assertEntityInstanceStates([
+      'node/1[0]' => 'opened',
+    ]);
+    $this->assertQuickEditEntityToolbar((string) $node->label(), NULL);
+    $this->assertEntityInstanceFieldStates('node', 1, 0, [
+      'node/1/title/en/full'               => 'candidate',
+      'node/1/uid/en/full'                 => 'candidate',
+      'node/1/created/en/full'             => 'candidate',
+      'node/1/body/en/full'                => 'candidate',
+      'node/1/' . $field_name . '/en/full' => 'candidate',
+    ]);
 
-    // Check that our Dropzone element exists.
+    // Click the image field.
+    $this->click($field_selector);
+    $this->awaitImageEditor();
     $this->assertSession()->elementExists('css', $field_selector . ' .quickedit-image-dropzone');
+    $this->assertEntityInstanceFieldStates('node', 1, 0, [
+      'node/1/title/en/full'               => 'candidate',
+      'node/1/uid/en/full'                 => 'candidate',
+      'node/1/created/en/full'             => 'candidate',
+      'node/1/body/en/full'                => 'candidate',
+      'node/1/' . $field_name . '/en/full' => 'active',
+    ]);
 
-    // Our headless browser can't drag+drop files, but we can mock the event.
-    // Append a hidden upload element to the DOM.
-    $script = 'jQuery("<input id=\"quickedit-image-test-input\" type=\"file\" />").appendTo("body")';
-    $this->getSession()->executeScript($script);
-
-    // Find the element, and set its value to our new image.
-    $input = $this->assertSession()->elementExists('css', '#quickedit-image-test-input');
-    $filepath = $this->container->get('file_system')->realpath($valid_images[1]->uri);
-    $input->attachFile($filepath);
-
-    // Trigger the upload logic with a mock "drop" event.
-    $script = 'var e = jQuery.Event("drop");'
-      . 'e.originalEvent = {dataTransfer: {files: jQuery("#quickedit-image-test-input").get(0).files}};'
-      . 'e.preventDefault = e.stopPropagation = function () {};'
-      . 'jQuery(".quickedit-image-dropzone").trigger(e);';
-    $this->getSession()->executeScript($script);
+    // Type new 'alt' text.
+    $this->typeInImageEditorAltTextInput('New text');
+    $this->assertEntityInstanceFieldStates('node', 1, 0, [
+      'node/1/title/en/full'               => 'candidate',
+      'node/1/uid/en/full'                 => 'candidate',
+      'node/1/created/en/full'             => 'candidate',
+      'node/1/body/en/full'                => 'candidate',
+      'node/1/' . $field_name . '/en/full' => 'changed',
+    ]);
 
-    // Wait for the dropzone element to be removed (i.e. loading is done).
-    $condition = "jQuery('" . $field_selector . " .quickedit-image-dropzone').length == 0";
-    $this->assertJsCondition($condition, 20000);
+    // Drag and drop an image.
+    $this->dropImageOnImageEditor($valid_images[1]->uri);
 
     // To prevent 403s on save, we re-set our request (cookie) state.
     $this->prepareRequest();
 
-    // Save the change.
-    $this->click('.quickedit-button.action-save');
-    $this->assertSession()->assertWaitOnAjaxRequest();
+    // Click 'Save'.
+    $this->saveQuickEdit();
+    $this->assertEntityInstanceStates([
+      'node/1[0]' => 'committing',
+    ]);
+    $this->assertEntityInstanceFieldStates('node', 1, 0, [
+      'node/1/title/en/full'               => 'candidate',
+      'node/1/uid/en/full'                 => 'candidate',
+      'node/1/created/en/full'             => 'candidate',
+      'node/1/body/en/full'                => 'candidate',
+      'node/1/' . $field_name . '/en/full' => 'saving',
+    ]);
+    $this->assertEntityInstanceFieldMarkup('node', 1, 0, [
+      'node/1/' . $field_name . '/en/full' => '.quickedit-changed',
+    ]);
+
+    // Wait for the saving of the image field to complete.
+    $this->assertJsCondition("Drupal.quickedit.collections.entities.get('node/1[0]').get('state') === 'closed'");
+    $this->assertEntityInstanceStates([
+      'node/1[0]' => 'closed',
+    ]);
 
     // Re-visit the page to make sure the edit worked.
     $this->drupalGet('node/' . $node->id());
diff --git a/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditIntegrationTest.php b/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditIntegrationTest.php
new file mode 100644
index 000000000000..cb3f141b067e
--- /dev/null
+++ b/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditIntegrationTest.php
@@ -0,0 +1,343 @@
+<?php
+
+namespace Drupal\Tests\quickedit\FunctionalJavascript;
+
+use Drupal\block_content\Entity\BlockContent;
+use Drupal\block_content\Entity\BlockContentType;
+use Drupal\Core\Field\FieldStorageDefinitionInterface;
+use Drupal\editor\Entity\Editor;
+use Drupal\field\Tests\EntityReference\EntityReferenceTestTrait;
+use Drupal\filter\Entity\FilterFormat;
+use Drupal\taxonomy\Entity\Term;
+use Drupal\taxonomy\Entity\Vocabulary;
+
+/**
+ * @group quickedit
+ */
+class QuickEditIntegrationTest extends QuickEditJavascriptTestBase {
+
+  use EntityReferenceTestTrait;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = [
+    'node',
+    'editor',
+    'ckeditor',
+    'taxonomy',
+    'block',
+    'block_content',
+    'hold_test',
+  ];
+
+  /**
+   * A user with permissions to edit Articles and use Quick Edit.
+   *
+   * @var \Drupal\user\UserInterface
+   */
+  protected $contentAuthorUser;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+    // Create text format, associate CKEditor.
+    FilterFormat::create([
+      'format' => 'some_format',
+      'name' => 'Some format',
+      'weight' => 0,
+      'filters' => [
+        'filter_html' => [
+          'status' => 1,
+          'settings' => [
+            'allowed_html' => '<h2 id> <h3> <h4> <h5> <h6> <p> <br> <strong> <a href hreflang>',
+          ],
+        ],
+      ],
+    ])->save();
+    Editor::create([
+      'format' => 'some_format',
+      'editor' => 'ckeditor',
+    ])->save();
+
+    // Create the Article node type.
+    $this->drupalCreateContentType(['type' => 'article', 'name' => 'Article']);
+
+    // Add "tags" vocabulary + field to the Article node type.
+    $vocabulary = Vocabulary::create([
+      'name' => 'Tags',
+      'vid' => 'tags',
+    ]);
+    $vocabulary->save();
+    $field_name = 'field_' . $vocabulary->id();
+    $handler_settings = [
+      'target_bundles' => [
+        $vocabulary->id() => $vocabulary->id(),
+      ],
+      'auto_create' => TRUE,
+    ];
+    $this->createEntityReferenceField('node', 'article', $field_name, 'Tags', 'taxonomy_term', 'default', $handler_settings, FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED);
+
+    // Add formatter & widget for "tags" field.
+    \Drupal::entityTypeManager()
+      ->getStorage('entity_form_display')
+      ->load('node.article.default')
+      ->setComponent($field_name, ['type' => 'entity_reference_autocomplete_tags'])
+      ->save();
+    \Drupal::entityTypeManager()
+      ->getStorage('entity_view_display')
+      ->load('node.article.default')
+      ->setComponent($field_name, ['type' => 'entity_reference_label'])
+      ->save();
+
+    $this->drupalPlaceBlock('page_title_block');
+    $this->drupalPlaceBlock('system_main_block');
+
+    // Log in as a content author who can use Quick Edit and edit Articles.
+    $this->contentAuthorUser = $this->drupalCreateUser([
+      'access contextual links',
+      'access toolbar',
+      'access in-place editing',
+      'access content',
+      'create article content',
+      'edit any article content',
+      'use text format some_format',
+      'edit terms in tags',
+      'administer blocks',
+    ]);
+    $this->drupalLogin($this->contentAuthorUser);
+  }
+
+  /**
+   * Tests if an article node can be in-place edited with Quick Edit.
+   */
+  public function testArticleNode() {
+    $term = Term::create([
+      'name' => 'foo',
+      'vid' => 'tags',
+    ]);
+    $term->save();
+
+    $node = $this->drupalCreateNode([
+      'type' => 'article',
+      'title' => t('My Test Node'),
+      'body' => [
+        'value' => '<p>Hello world!</p><p>I do not know what to say…</p><p>I wish I were eloquent.</p>',
+        'format' => 'some_format',
+      ],
+      'field_tags' => [
+        ['target_id' => $term->id()],
+      ],
+    ]);
+
+    $this->drupalGet('node/' . $node->id());
+
+    // Initial state.
+    $this->awaitQuickEditForEntity('node', 1);
+    $this->assertEntityInstanceStates([
+      'node/1[0]' => 'closed',
+    ]);
+    $this->assertEntityInstanceFieldStates('node', 1, 0, [
+      'node/1/title/en/full'      => 'inactive',
+      'node/1/uid/en/full'        => 'inactive',
+      'node/1/created/en/full'    => 'inactive',
+      'node/1/body/en/full'       => 'inactive',
+      'node/1/field_tags/en/full' => 'inactive',
+    ]);
+
+    // Start in-place editing of the article node.
+    $this->startQuickEditViaToolbar('node', 1, 0);
+    $this->assertEntityInstanceStates([
+      'node/1[0]' => 'opened',
+    ]);
+    $this->assertQuickEditEntityToolbar((string) $node->label(), NULL);
+    $this->assertEntityInstanceFieldStates('node', 1, 0, [
+      'node/1/title/en/full'      => 'candidate',
+      'node/1/uid/en/full'        => 'candidate',
+      'node/1/created/en/full'    => 'candidate',
+      'node/1/body/en/full'       => 'candidate',
+      'node/1/field_tags/en/full' => 'candidate',
+    ]);
+
+    $assert_session = $this->assertSession();
+
+    // Click the title field.
+    $this->click('[data-quickedit-field-id="node/1/title/en/full"].quickedit-candidate');
+    $assert_session->waitForElement('css', '.quickedit-toolbar-field div[id*="title"]');
+    $this->assertQuickEditEntityToolbar((string) $node->label(), 'Title');
+    $this->assertEntityInstanceFieldStates('node', 1, 0, [
+      'node/1/title/en/full'      => 'active',
+      'node/1/uid/en/full'        => 'candidate',
+      'node/1/created/en/full'    => 'candidate',
+      'node/1/body/en/full'       => 'candidate',
+      'node/1/field_tags/en/full' => 'candidate',
+    ]);
+    $this->assertEntityInstanceFieldMarkup('node', 1, 0, [
+      'node/1/title/en/full' => '[contenteditable="true"]',
+    ]);
+
+    // Append something to the title.
+    $this->typeInPlainTextEditor('[data-quickedit-field-id="node/1/title/en/full"].quickedit-candidate', ' Llamas are awesome!');
+    $this->awaitEntityInstanceFieldState('node', 1, 0, 'title', 'en', 'changed');
+    $this->assertEntityInstanceFieldStates('node', 1, 0, [
+      'node/1/title/en/full'      => 'changed',
+      'node/1/uid/en/full'        => 'candidate',
+      'node/1/created/en/full'    => 'candidate',
+      'node/1/body/en/full'       => 'candidate',
+      'node/1/field_tags/en/full' => 'candidate',
+    ]);
+
+    // Click the body field.
+    hold_test_response(TRUE);
+    $this->click('[data-quickedit-entity-id="node/1"] .field--name-body');
+    $assert_session->waitForElement('css', '.quickedit-toolbar-field div[id*="body"]');
+    $this->assertQuickEditEntityToolbar((string) $node->label(), 'Body');
+    $this->assertEntityInstanceFieldStates('node', 1, 0, [
+      'node/1/title/en/full'      => 'saving',
+      'node/1/uid/en/full'        => 'candidate',
+      'node/1/created/en/full'    => 'candidate',
+      'node/1/body/en/full'       => 'active',
+      'node/1/field_tags/en/full' => 'candidate',
+    ]);
+    hold_test_response(FALSE);
+
+    // Wait for CKEditor to load, then verify it has.
+    $this->assertJsCondition('CKEDITOR.status === "loaded"');
+    $this->assertEntityInstanceFieldMarkup('node', 1, 0, [
+      'node/1/body/en/full'       => '.cke_editable_inline',
+      'node/1/field_tags/en/full' => ':not(.quickedit-editor-is-popup)',
+    ]);
+    $this->assertSession()->elementExists('css', '#quickedit-entity-toolbar .quickedit-toolgroup.wysiwyg-main > .cke_chrome .cke_top[role="presentation"] .cke_toolbar[role="toolbar"] .cke_toolgroup[role="presentation"] > .cke_button[title~="Bold"][role="button"]');
+
+    // Wait for the validating & saving of the title to complete.
+    $this->awaitEntityInstanceFieldState('node', 1, 0, 'title', 'en', 'candidate');
+
+    // Click the tags field.
+    hold_test_response(TRUE);
+    $this->click('[data-quickedit-field-id="node/1/field_tags/en/full"]');
+    $assert_session->waitForElement('css', '.quickedit-toolbar-field div[id*="tags"]');
+    $this->assertQuickEditEntityToolbar((string) $node->label(), 'Tags');
+    $this->assertEntityInstanceFieldStates('node', 1, 0, [
+      'node/1/uid/en/full'        => 'candidate',
+      'node/1/created/en/full'    => 'candidate',
+      'node/1/body/en/full'       => 'candidate',
+      'node/1/field_tags/en/full' => 'activating',
+      'node/1/title/en/full'      => 'candidate',
+    ]);
+    $this->assertEntityInstanceFieldMarkup('node', 1, 0, [
+      'node/1/title/en/full'      => '.quickedit-changed',
+      'node/1/field_tags/en/full' => '.quickedit-editor-is-popup',
+    ]);
+    // Assert the "Loading…" popup appears.
+    $this->assertSession()->elementExists('css', '.quickedit-form-container > .quickedit-form[role="dialog"] > .placeholder');
+    hold_test_response(FALSE);
+    // Wait for the form to load.
+    $this->assertJsCondition('document.querySelector(\'.quickedit-form-container > .quickedit-form[role="dialog"] > .placeholder\') === null');
+    $this->assertEntityInstanceFieldStates('node', 1, 0, [
+      'node/1/uid/en/full'        => 'candidate',
+      'node/1/created/en/full'    => 'candidate',
+      'node/1/body/en/full'       => 'candidate',
+      'node/1/field_tags/en/full' => 'active',
+      'node/1/title/en/full'      => 'candidate',
+    ]);
+
+    // Enter an additional tag.
+    $this->typeInFormEditorTextInputField('field_tags[target_id]', 'foo, bar');
+    $this->awaitEntityInstanceFieldState('node', 1, 0, 'field_tags', 'en', 'changed');
+    $this->assertEntityInstanceFieldStates('node', 1, 0, [
+      'node/1/uid/en/full'        => 'candidate',
+      'node/1/created/en/full'    => 'candidate',
+      'node/1/body/en/full'       => 'candidate',
+      'node/1/field_tags/en/full' => 'changed',
+      'node/1/title/en/full'      => 'candidate',
+    ]);
+
+    // Click 'Save'.
+    hold_test_response(TRUE);
+    $this->saveQuickEdit();
+    $this->assertEntityInstanceStates([
+      'node/1[0]' => 'committing',
+    ]);
+    $this->assertEntityInstanceFieldStates('node', 1, 0, [
+      'node/1/uid/en/full'        => 'candidate',
+      'node/1/created/en/full'    => 'candidate',
+      'node/1/body/en/full'       => 'candidate',
+      'node/1/field_tags/en/full' => 'saving',
+      'node/1/title/en/full'      => 'candidate',
+    ]);
+    hold_test_response(FALSE);
+    $this->assertEntityInstanceFieldMarkup('node', 1, 0, [
+      'node/1/title/en/full'      => '.quickedit-changed',
+      'node/1/field_tags/en/full' => '.quickedit-changed',
+    ]);
+
+    // Wait for the saving of the tags field to complete.
+    $this->assertJsCondition("Drupal.quickedit.collections.entities.get('node/1[0]').get('state') === 'closed'");
+    $this->assertEntityInstanceStates([
+      'node/1[0]' => 'closed',
+    ]);
+  }
+
+  /**
+   * Tests if a custom can be in-place edited with Quick Edit.
+   */
+  public function testCustomBlock() {
+    $block_content_type = BlockContentType::create([
+      'id' => 'basic',
+      'label' => 'basic',
+      'revision' => FALSE,
+    ]);
+    $block_content_type->save();
+    block_content_add_body_field($block_content_type->id());
+
+    $block_content = BlockContent::create([
+      'info' => 'Llama',
+      'type' => 'basic',
+      'body' => [
+        'value' => 'The name "llama" was adopted by European settlers from native Peruvians.',
+        'format' => 'some_format',
+      ],
+    ]);
+    $block_content->save();
+    $this->drupalPlaceBlock('block_content:' . $block_content->uuid(), [
+      'label' => 'My custom block!',
+    ]);
+
+    $this->drupalGet('');
+
+    // Initial state.
+    $this->awaitQuickEditForEntity('block_content', 1);
+    $this->assertEntityInstanceStates([
+      'block_content/1[0]' => 'closed',
+    ]);
+
+    // Start in-place editing of the article node.
+    $this->startQuickEditViaToolbar('block_content', 1, 0);
+    $this->assertEntityInstanceStates([
+      'block_content/1[0]' => 'opened',
+    ]);
+    $this->assertQuickEditEntityToolbar((string) $block_content->label(), 'Body');
+    $this->assertEntityInstanceFieldStates('block_content', 1, 0, [
+      'block_content/1/body/en/full' => 'highlighted',
+    ]);
+
+    // Click the body field.
+    $this->click('[data-quickedit-entity-id="block_content/1"] .field--name-body');
+    $assert_session = $this->assertSession();
+    $assert_session->waitForElement('css', '.quickedit-toolbar-field div[id*="body"]');
+    $this->assertQuickEditEntityToolbar((string) $block_content->label(), 'Body');
+    $this->assertEntityInstanceFieldStates('block_content', 1, 0, [
+      'block_content/1/body/en/full' => 'active',
+    ]);
+
+    // Wait for CKEditor to load, then verify it has.
+    $this->assertJsCondition('CKEDITOR.status === "loaded"');
+    $this->assertEntityInstanceFieldMarkup('block_content', 1, 0, [
+      'block_content/1/body/en/full' => '.cke_editable_inline',
+    ]);
+    $this->assertSession()->elementExists('css', '#quickedit-entity-toolbar .quickedit-toolgroup.wysiwyg-main > .cke_chrome .cke_top[role="presentation"] .cke_toolbar[role="toolbar"] .cke_toolgroup[role="presentation"] > .cke_button[title~="Bold"][role="button"]');
+  }
+
+}
diff --git a/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditJavascriptTestBase.php b/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditJavascriptTestBase.php
new file mode 100644
index 000000000000..cb40a83cecae
--- /dev/null
+++ b/core/modules/quickedit/tests/src/FunctionalJavascript/QuickEditJavascriptTestBase.php
@@ -0,0 +1,326 @@
+<?php
+
+namespace Drupal\Tests\quickedit\FunctionalJavascript;
+
+use Drupal\FunctionalJavascriptTests\DrupalSelenium2Driver;
+use Drupal\FunctionalJavascriptTests\JavascriptTestBase;
+use WebDriver\Key;
+
+/**
+ * Base class for testing the QuickEdit.
+ */
+class QuickEditJavascriptTestBase extends JavascriptTestBase {
+
+  /**
+   * {@inheritdoc}
+   *
+   * @todo: Remove after https://www.drupal.org/project/drupal/issues/2942900
+   */
+  protected $minkDefaultDriverClass = DrupalSelenium2Driver::class;
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = ['contextual', 'quickedit', 'toolbar'];
+
+  /**
+   * A user with permissions to edit Articles and use Quick Edit.
+   *
+   * @var \Drupal\user\UserInterface
+   */
+  protected $contentAuthorUser;
+
+  protected static $expectedFieldStateAttributes = [
+    'inactive'  => '.quickedit-field:not(.quickedit-editable):not(.quickedit-candidate):not(.quickedit-highlighted):not(.quickedit-editing):not(.quickedit-changed)',
+    // A field in 'candidate' state may still have the .quickedit-changed class
+    // because when its changes were saved to tempstore, it'll still be changed.
+    // It's just not currently being edited, so that's why it is not in the
+    // 'changed' state.
+    'candidate' => '.quickedit-field.quickedit-editable.quickedit-candidate:not(.quickedit-highlighted):not(.quickedit-editing)',
+    'highlighted' => '.quickedit-field.quickedit-editable.quickedit-candidate.quickedit-highlighted:not(.quickedit-editing)',
+    'activating' => '.quickedit-field.quickedit-editable.quickedit-candidate.quickedit-highlighted.quickedit-editing:not(.quickedit-changed)',
+    'active'    => '.quickedit-field.quickedit-editable.quickedit-candidate.quickedit-highlighted.quickedit-editing:not(.quickedit-changed)',
+    'changed'   => '.quickedit-field.quickedit-editable.quickedit-candidate.quickedit-highlighted.quickedit-editing.quickedit-changed',
+    'saving'    => '.quickedit-field.quickedit-editable.quickedit-candidate.quickedit-highlighted.quickedit-editing.quickedit-changed',
+  ];
+
+  /**
+   * Starts in-place editing of the given entity instance.
+   *
+   * @param string $entity_type_id
+   *   The entity type ID.
+   * @param int $entity_id
+   *   The entity ID.
+   * @param int $entity_instance_id
+   *   The entity instance ID. (Instance on the page.)
+   */
+  protected function startQuickEditViaToolbar($entity_type_id, $entity_id, $entity_instance_id) {
+    $page = $this->getSession()->getPage();
+
+    $toolbar_edit_button_selector = '#toolbar-bar .contextual-toolbar-tab button';
+    $entity_instance_selector = '[data-quickedit-entity-id="' . $entity_type_id . '/' . $entity_id . '"][data-quickedit-entity-instance-id="' . $entity_instance_id . '"]';
+    $contextual_links_trigger_selector = '[data-contextual-id] > .trigger';
+
+    // Assert the original page state does not have the toolbar's "Edit" button
+    // pressed/activated, and hence none of the contextual link triggers should
+    // be visible.
+    $toolbar_edit_button = $page->find('css', $toolbar_edit_button_selector);
+    $this->assertSame('false', $toolbar_edit_button->getAttribute('aria-pressed'), 'The "Edit" button in the toolbar is not yet pressed.');
+    $this->assertFalse($toolbar_edit_button->hasClass('is-active'), 'The "Edit" button in the toolbar is not yet marked as active.');
+    foreach ($page->findAll('css', $contextual_links_trigger_selector) as $dom_node) {
+      /** @var \Behat\Mink\Element\NodeElement $dom_node */
+      $this->assertTrue($dom_node->hasClass('visually-hidden'), 'The contextual links trigger "' . $dom_node->getParent()->getAttribute('data-contextual-id') . '" is hidden.');
+    }
+    $this->assertTrue(TRUE, 'All contextual links triggers are hidden.');
+
+    // Click the "Edit" button in the toolbar.
+    $this->click($toolbar_edit_button_selector);
+
+    // Assert the toolbar's "Edit" button is now pressed/activated, and hence
+    // all of the contextual link triggers should be visible.
+    $this->assertSame('true', $toolbar_edit_button->getAttribute('aria-pressed'), 'The "Edit" button in the toolbar is pressed.');
+    $this->assertTrue($toolbar_edit_button->hasClass('is-active'), 'The "Edit" button in the toolbar is marked as active.');
+    foreach ($page->findAll('css', $contextual_links_trigger_selector) as $dom_node) {
+      /** @var \Behat\Mink\Element\NodeElement $dom_node */
+      $this->assertFalse($dom_node->hasClass('visually-hidden'), 'The contextual links trigger "' . $dom_node->getParent()->getAttribute('data-contextual-id') . '" is visible.');
+    }
+    $this->assertTrue(TRUE, 'All contextual links triggers are visible.');
+
+    // @todo Press tab key to verify that tabbing is now contrained to only
+    // contextual links triggers: https://www.drupal.org/node/2834776
+
+    // Assert that the contextual links associated with the entity's contextual
+    // links trigger are not visible.
+    /** @var \Behat\Mink\Element\NodeElement $entity_contextual_links_container */
+    $entity_contextual_links_container = $page->find('css', $entity_instance_selector)
+      ->find('css', $contextual_links_trigger_selector)
+      ->getParent();
+    $this->assertFalse($entity_contextual_links_container->hasClass('open'));
+    $this->assertTrue($entity_contextual_links_container->find('css', 'ul.contextual-links')->hasAttribute('hidden'));
+
+    // Click the contextual link trigger for the entity we want to Quick Edit.
+    $this->click($entity_instance_selector . ' ' . $contextual_links_trigger_selector);
+
+    $this->assertTrue($entity_contextual_links_container->hasClass('open'));
+    $this->assertFalse($entity_contextual_links_container->find('css', 'ul.contextual-links')->hasAttribute('hidden'));
+
+    // Click the "Quick edit" contextual link.
+    $this->click($entity_instance_selector . ' [data-contextual-id] ul.contextual-links li.quickedit a');
+
+    // Assert the Quick Edit internal state is correct.
+    $js_condition = <<<JS
+Drupal.quickedit.collections.entities.where({isActive: true}).length === 1 && Drupal.quickedit.collections.entities.where({isActive: true})[0].get('entityID') === '$entity_type_id/$entity_id';
+JS;
+    $this->assertJsCondition($js_condition);
+  }
+
+  /**
+   * Clicks the 'Save' button in the Quick Edit entity toolbar.
+   */
+  protected function saveQuickEdit() {
+    $quickedit_entity_toolbar = $this->getSession()->getPage()->findById('quickedit-entity-toolbar');
+    $save_button = $quickedit_entity_toolbar->find('css', 'button.action-save');
+    $save_button->press();
+    $this->assertSame('Saving', $save_button->getText());
+  }
+
+  /**
+   * Awaits Quick Edit to be initiated for all instances of the given entity.
+   *
+   * @param string $entity_type_id
+   *   The entity type ID.
+   * @param int $entity_id
+   *   The entity ID.
+   */
+  protected function awaitQuickEditForEntity($entity_type_id, $entity_id) {
+    $entity_selector = '[data-quickedit-entity-id="' . $entity_type_id . '/' . $entity_id . '"]';
+    $condition = "document.querySelectorAll('" . $entity_selector . "').length === document.querySelectorAll('" . $entity_selector . " .quickedit').length";
+    $this->assertJsCondition($condition, 10000);
+  }
+
+  /**
+   * Awaits a particular field instance to reach a particular state.
+   *
+   * @param string $entity_type_id
+   *   The entity type ID.
+   * @param int $entity_id
+   *   The entity ID.
+   * @param int $entity_instance_id
+   *   The entity instance ID. (Instance on the page.)
+   * @param string $field_name
+   *   The field name.
+   * @param string $langcode
+   *   The language code.
+   * @param string $awaited_state
+   *   One of the possible field states.
+   */
+  protected function awaitEntityInstanceFieldState($entity_type_id, $entity_id, $entity_instance_id, $field_name, $langcode, $awaited_state) {
+    $entity_page_id = $entity_type_id . '/' . $entity_id . '[' . $entity_instance_id . ']';
+    $logical_field_id = $entity_type_id . '/' . $entity_id . '/' . $field_name . '/' . $langcode;
+    $this->assertJsCondition("Drupal.quickedit.collections.entities.get('$entity_page_id').get('fields').findWhere({logicalFieldID: '$logical_field_id'}).get('state') === '$awaited_state';");
+  }
+
+  /**
+   * Asserts the state of the Quick Edit entity toolbar.
+   *
+   * @param string $expected_entity_label
+   *   The expected label in the Quick Edit Entity Toolbar.
+   */
+  protected function assertQuickEditEntityToolbar($expected_entity_label, $expected_field_label) {
+    $quickedit_entity_toolbar = $this->getSession()->getPage()->findById('quickedit-entity-toolbar');
+    // We cannot use ->getText() because it also returns the text of all child
+    // nodes. We also cannot use XPath to select text node in Selenium. So we
+    // use JS expression to select only the text node.
+    $this->assertSame($expected_entity_label, $this->getSession()->evaluateScript("return window.jQuery('#quickedit-entity-toolbar .quickedit-toolbar-label').clone().children().remove().end().text();"));
+    if ($expected_field_label !== NULL) {
+      $field_label = $quickedit_entity_toolbar->find('css', '.quickedit-toolbar-label > .field');
+      // Only try to find the text content of the element if it was actually
+      // found; otherwise use the returned value for assertion. This helps
+      // us find a more useful stack/error message from testbot instead of the
+      // trimmed partial exception stack.
+      if ($field_label) {
+        $field_label = $field_label->getText();
+      }
+      $this->assertSame($expected_field_label, $field_label);
+    }
+    else {
+      $this->assertFalse($quickedit_entity_toolbar->find('css', '.quickedit-toolbar-label > .field'));
+    }
+  }
+
+  /**
+   * Asserts all EntityModels (entity instances) on the page.
+   *
+   * @param array $expected_entity_states
+   *   Must describe the expected state of all in-place editable entity
+   *   instances on the page.
+   *
+   * @see Drupal.quickedit.EntityModel
+   */
+  protected function assertEntityInstanceStates(array $expected_entity_states) {
+    $js_get_all_field_states_for_entity = <<<JS
+function () {
+    Drupal.quickedit.collections.entities.reduce(function (result, fieldModel) { result[fieldModel.get('id')] = fieldModel.get('state'); return result; }, {})
+  var entityCollection = Drupal.quickedit.collections.entities;
+  return entityCollection.reduce(function (result, entityModel) {
+    result[entityModel.id] = entityModel.get('state');
+    return result;
+  }, {});
+}()
+JS;
+    $this->assertSame($expected_entity_states, $this->getSession()->evaluateScript($js_get_all_field_states_for_entity));
+  }
+
+  /**
+   * Asserts all FieldModels for the given entity instance.
+   *
+   * @param string $entity_type_id
+   *   The entity type ID.
+   * @param int $entity_id
+   *   The entity ID.
+   * @param int $entity_instance_id
+   *   The entity instance ID. (Instance on the page.)
+   * @param array $expected_field_states
+   *   Must describe the expected state of all in-place editable fields of the
+   *   given entity instance.
+   */
+  protected function assertEntityInstanceFieldStates($entity_type_id, $entity_id, $entity_instance_id, array $expected_field_states) {
+    // Get all FieldModel states for the entity instance being asserted. This
+    // ensures that $expected_field_states must describe the state of all fields
+    // of the entity instance.
+    $entity_page_id = $entity_type_id . '/' . $entity_id . '[' . $entity_instance_id . ']';
+    $js_get_all_field_states_for_entity = <<<JS
+function () {
+  var entityCollection = Drupal.quickedit.collections.entities;
+  var entityModel = entityCollection.get('$entity_page_id');
+  return entityModel.get('fields').reduce(function (result, fieldModel) {
+    result[fieldModel.get('fieldID')] = fieldModel.get('state');
+    return result;
+  }, {});
+}()
+JS;
+    $this->assertEquals($expected_field_states, $this->getSession()->evaluateScript($js_get_all_field_states_for_entity));
+
+    // Assert that those fields also have the appropriate DOM decorations.
+    $expected_field_attributes = [];
+    foreach ($expected_field_states as $quickedit_field_id => $expected_field_state) {
+      $expected_field_attributes[$quickedit_field_id] = static::$expectedFieldStateAttributes[$expected_field_state];
+    }
+    $this->assertEntityInstanceFieldMarkup($entity_type_id, $entity_id, $entity_instance_id, $expected_field_attributes);
+  }
+
+  /**
+   * Asserts all in-place editable fields with markup expectations.
+   *
+   * @param string $entity_type_id
+   *   The entity type ID.
+   * @param int $entity_id
+   *   The entity ID.
+   * @param int $entity_instance_id
+   *   The entity instance ID. (Instance on the page.)
+   * @param array $expected_field_attributes
+   *   Must describe the expected markup attributes for all given in-place
+   *   editable fields.
+   */
+  protected function assertEntityInstanceFieldMarkup($entity_type_id, $entity_id, $entity_instance_id, array $expected_field_attributes) {
+    $entity_page_id = $entity_type_id . '/' . $entity_id . '[' . $entity_instance_id . ']';
+    $expected_field_attributes_json = json_encode($expected_field_attributes);
+    $js_match_field_element_attributes = <<<JS
+function () {
+  var expectations = $expected_field_attributes_json;
+  var entityCollection = Drupal.quickedit.collections.entities;
+  var entityModel = entityCollection.get('$entity_page_id');
+  return entityModel.get('fields').reduce(function (result, fieldModel) {
+    var fieldID = fieldModel.get('fieldID');
+    var element = fieldModel.get('el');
+    var matches = element.webkitMatchesSelector(expectations[fieldID]);
+    result[fieldID] = matches ? matches : element.outerHTML;
+    return result;
+  }, {});
+}()
+JS;
+    $result = $this->getSession()->evaluateScript($js_match_field_element_attributes);
+    foreach ($expected_field_attributes as $quickedit_field_id => $expectation) {
+      $this->assertSame(TRUE, $result[$quickedit_field_id], 'Field ' . $quickedit_field_id . ' did not match its expectation selector (' . $expectation . '), actual HTML: ' . $result[$quickedit_field_id]);
+    }
+  }
+
+  /**
+   * Simulates typing in a 'plain_text' in-place editor.
+   *
+   * @param string $css_selector
+   *   The CSS selector to find the DOM element (with the 'contenteditable=true'
+   *   attribute set), to type in.
+   * @param string $text
+   *   The text to type.
+   *
+   * @see \Drupal\quickedit\Plugin\InPlaceEditor\PlainTextEditor
+   */
+  protected function typeInPlainTextEditor($css_selector, $text) {
+    $field = $this->getSession()->getPage()->find('css', $css_selector);
+    $field->setValue(Key::END . $text);
+  }
+
+  /**
+   * Simulates typing in an input[type=text] inside a 'form' in-place editor.
+   *
+   * @param string $input_name
+   *   The "name" attribute of the input[type=text] to type in.
+   * @param string $text
+   *   The text to type.
+   *
+   * @see \Drupal\quickedit\Plugin\InPlaceEditor\FormEditor
+   */
+  protected function typeInFormEditorTextInputField($input_name, $text) {
+    $input = $this->cssSelect('.quickedit-form-container > .quickedit-form[role="dialog"] form.quickedit-field-form input[type=text][name="' . $input_name . '"]')[0];
+    $input->setValue($text);
+    $js_simulate_user_typing = <<<JS
+function () {
+  var el = document.querySelector('.quickedit-form-container > .quickedit-form[role="dialog"] form.quickedit-field-form input[name="$input_name"]');
+  window.jQuery(el).trigger('formUpdated');
+}()
+JS;
+    $this->getSession()->evaluateScript($js_simulate_user_typing);
+  }
+
+}
-- 
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