class WorkspaceIntegrationTest

class WorkspaceIntegrationTest extends KernelTestBase {
    use ContentTypeCreationTrait;
    use EntityReferenceFieldCreationTrait;
    use NodeCreationTrait;
    use UserCreationTrait;
    use ViewResultAssertionTrait;
    use WorkspaceTestTrait;
    
    /**
     * The entity type manager.
     *
     * @var \Drupal\Core\Entity\EntityTypeManagerInterface
     */
    protected $entityTypeManager;
    
    /**
     * Creation timestamp that should be incremented for each new entity.
     *
     * @var int
     */
    protected $createdTimestamp;
    
    /**
     * An array of nodes created before installing the Workspaces module.
     *
     * @var \Drupal\node\NodeInterface[]
     */
    protected $nodes = [];
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'entity_test',
        'field',
        'filter',
        'node',
        'text',
        'user',
        'system',
        'views',
        'language',
        'content_translation',
        'path_alias',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->entityTypeManager = \Drupal::entityTypeManager();
        $this->installEntitySchema('entity_test_mulrev');
        $this->installEntitySchema('entity_test_mulrevpub');
        $this->installEntitySchema('entity_test_no_label');
        $this->installEntitySchema('node');
        $this->installEntitySchema('user');
        $this->installConfig([
            'filter',
            'node',
            'system',
            'language',
            'content_translation',
        ]);
        $this->installSchema('node', [
            'node_access',
        ]);
        $language = ConfigurableLanguage::createFromLangcode('de');
        $language->save();
        $this->createContentType([
            'type' => 'page',
        ]);
        $this->setCurrentUser($this->createUser([
            'administer nodes',
        ]));
        $this->container
            ->get('content_translation.manager')
            ->setEnabled('node', 'page', TRUE);
        // Create two nodes, a published and an unpublished one, so we can test the
        // behavior of the module with default/existing content.
        $this->createdTimestamp = \Drupal::time()->getRequestTime();
        $this->nodes[] = $this->createNode([
            'title' => 'live - 1 - r1 - published',
            'body' => 'node 1',
            'created' => $this->createdTimestamp++,
            'status' => TRUE,
        ]);
        $this->nodes[] = $this->createNode([
            'title' => 'live - 2 - r2 - unpublished',
            'body' => 'node 2',
            'created' => $this->createdTimestamp++,
            'status' => FALSE,
        ]);
        $translation = $this->nodes[0]
            ->addTranslation('de');
        $translation->setTitle('live - 1 - r1 - published - de');
        $translation->save();
    }
    
    /**
     * Tests various scenarios for creating and publishing content in workspaces.
     */
    public function testWorkspaces() : void {
        $this->initializeWorkspacesModule();
        // Notes about the structure of the test scenarios:
        // - a multi-dimensional array keyed by the workspace ID, then by the entity
        //   ID and finally by the revision ID.
        // - 'default_revision' indicates the entity revision that should be
        //   returned when loading an entity, non-revision entity queries and
        //   non-revision views *in a given workspace*, it does not indicate what is
        //   actually stored in the base and data entity tables.
        $test_scenarios = [];
        // The $expected_workspace_association array holds the revision IDs which
        // should be tracked by the Workspace Association entity type in each test
        // scenario, keyed by workspace ID.
        $expected_workspace_association = [];
        // In the initial state we have only the two revisions that were created
        // before the Workspaces module was installed.
        $revision_state = [
            'live' => [
                1 => [
                    1 => [
                        'title' => 'live - 1 - r1 - published',
                        'status' => TRUE,
                        'default_revision' => TRUE,
                    ],
                ],
                2 => [
                    2 => [
                        'title' => 'live - 2 - r2 - unpublished',
                        'status' => FALSE,
                        'default_revision' => TRUE,
                    ],
                ],
            ],
            'stage' => [
                1 => [
                    1 => [
                        'title' => 'live - 1 - r1 - published',
                        'status' => TRUE,
                        'default_revision' => TRUE,
                    ],
                ],
                2 => [
                    2 => [
                        'title' => 'live - 2 - r2 - unpublished',
                        'status' => FALSE,
                        'default_revision' => TRUE,
                    ],
                ],
            ],
        ];
        $test_scenarios['initial_state'] = $revision_state;
        $expected_workspace_association['initial_state'] = [
            'stage' => [],
        ];
        // Unpublish node 1 in 'stage'. The new revision is also added to 'live' but
        // it is not the default revision.
        $revision_state = array_replace_recursive($revision_state, [
            'live' => [
                1 => [
                    3 => [
                        'title' => 'stage - 1 - r3 - unpublished',
                        'status' => FALSE,
                        'default_revision' => FALSE,
                    ],
                ],
            ],
            'stage' => [
                1 => [
                    1 => [
                        'default_revision' => FALSE,
                    ],
                    3 => [
                        'title' => 'stage - 1 - r3 - unpublished',
                        'status' => FALSE,
                        'default_revision' => TRUE,
                    ],
                ],
            ],
        ]);
        $test_scenarios['unpublish_node_1_in_stage'] = $revision_state;
        $expected_workspace_association['unpublish_node_1_in_stage'] = [
            'stage' => [
                3,
            ],
        ];
        // Publish node 2 in 'stage'. The new revision is also added to 'live' but
        // it is not the default revision.
        $revision_state = array_replace_recursive($revision_state, [
            'live' => [
                2 => [
                    4 => [
                        'title' => 'stage - 2 - r4 - published',
                        'status' => TRUE,
                        'default_revision' => FALSE,
                    ],
                ],
            ],
            'stage' => [
                2 => [
                    2 => [
                        'default_revision' => FALSE,
                    ],
                    4 => [
                        'title' => 'stage - 2 - r4 - published',
                        'status' => TRUE,
                        'default_revision' => TRUE,
                    ],
                ],
            ],
        ]);
        $test_scenarios['publish_node_2_in_stage'] = $revision_state;
        $expected_workspace_association['publish_node_2_in_stage'] = [
            'stage' => [
                3,
                4,
            ],
        ];
        // Adding a new unpublished node on 'stage' should create a single
        // unpublished revision on both 'stage' and 'live'.
        $revision_state = array_replace_recursive($revision_state, [
            'live' => [
                3 => [
                    5 => [
                        'title' => 'stage - 3 - r5 - unpublished',
                        'status' => FALSE,
                        'default_revision' => TRUE,
                    ],
                ],
            ],
            'stage' => [
                3 => [
                    5 => [
                        'title' => 'stage - 3 - r5 - unpublished',
                        'status' => FALSE,
                        'default_revision' => TRUE,
                    ],
                ],
            ],
        ]);
        $test_scenarios['add_unpublished_node_in_stage'] = $revision_state;
        $expected_workspace_association['add_unpublished_node_in_stage'] = [
            'stage' => [
                3,
                4,
                5,
            ],
        ];
        // Adding a new published node on 'stage' should create two revisions, an
        // unpublished revision on 'live' and a published one on 'stage'.
        $revision_state = array_replace_recursive($revision_state, [
            'live' => [
                4 => [
                    6 => [
                        'title' => 'stage - 4 - r6 - published',
                        'status' => FALSE,
                        'default_revision' => TRUE,
                    ],
                    7 => [
                        'title' => 'stage - 4 - r6 - published',
                        'status' => TRUE,
                        'default_revision' => FALSE,
                    ],
                ],
            ],
            'stage' => [
                4 => [
                    6 => [
                        'title' => 'stage - 4 - r6 - published',
                        'status' => FALSE,
                        'default_revision' => FALSE,
                    ],
                    7 => [
                        'title' => 'stage - 4 - r6 - published',
                        'status' => TRUE,
                        'default_revision' => TRUE,
                    ],
                ],
            ],
        ]);
        $test_scenarios['add_published_node_in_stage'] = $revision_state;
        $expected_workspace_association['add_published_node_in_stage'] = [
            'stage' => [
                3,
                4,
                5,
                7,
            ],
        ];
        // Publishing 'stage' to 'live' should simply make the latest revisions in
        // 'stage' the default ones in 'live'.
        $revision_state = array_replace_recursive($revision_state, [
            'live' => [
                1 => [
                    1 => [
                        'default_revision' => FALSE,
                    ],
                    3 => [
                        'default_revision' => TRUE,
                    ],
                ],
                2 => [
                    2 => [
                        'default_revision' => FALSE,
                    ],
                    4 => [
                        'default_revision' => TRUE,
                    ],
                ],
                // Node 3 has a single revision for both 'stage' and 'live' and it is
                // already the default revision in both of them.
4 => [
                    6 => [
                        'default_revision' => FALSE,
                    ],
                    7 => [
                        'default_revision' => TRUE,
                    ],
                ],
            ],
        ]);
        $test_scenarios['push_stage_to_live'] = $revision_state;
        $expected_workspace_association['push_stage_to_live'] = [
            'stage' => [],
        ];
        // Check the initial state after the module was installed.
        $this->assertWorkspaceStatus($test_scenarios['initial_state'], 'node');
        $this->assertWorkspaceAssociation($expected_workspace_association['initial_state'], 'node');
        // Unpublish node 1 in 'stage'.
        $this->switchToWorkspace('stage');
        $node = $this->entityTypeManager
            ->getStorage('node')
            ->load(1);
        $node->setTitle('stage - 1 - r3 - unpublished');
        $node->setUnpublished();
        $node->save();
        $this->assertWorkspaceStatus($test_scenarios['unpublish_node_1_in_stage'], 'node');
        $this->assertWorkspaceAssociation($expected_workspace_association['unpublish_node_1_in_stage'], 'node');
        // Publish node 2 in 'stage'.
        $this->switchToWorkspace('stage');
        $node = $this->entityTypeManager
            ->getStorage('node')
            ->load(2);
        $node->setTitle('stage - 2 - r4 - published');
        $node->setPublished();
        $node->save();
        $this->assertWorkspaceStatus($test_scenarios['publish_node_2_in_stage'], 'node');
        $this->assertWorkspaceAssociation($expected_workspace_association['publish_node_2_in_stage'], 'node');
        // Add a new unpublished node on 'stage'.
        $this->switchToWorkspace('stage');
        $this->createNode([
            'title' => 'stage - 3 - r5 - unpublished',
            'created' => $this->createdTimestamp++,
            'status' => FALSE,
        ]);
        $this->assertWorkspaceStatus($test_scenarios['add_unpublished_node_in_stage'], 'node');
        $this->assertWorkspaceAssociation($expected_workspace_association['add_unpublished_node_in_stage'], 'node');
        // Add a new published node on 'stage'.
        $this->switchToWorkspace('stage');
        $this->createNode([
            'title' => 'stage - 4 - r6 - published',
            'created' => $this->createdTimestamp++,
            'status' => TRUE,
        ]);
        $this->assertWorkspaceStatus($test_scenarios['add_published_node_in_stage'], 'node');
        $this->assertWorkspaceAssociation($expected_workspace_association['add_published_node_in_stage'], 'node');
        // Publish 'stage' to 'live'.
        
        /** @var \Drupal\workspaces\WorkspacePublisher $workspace_publisher */
        $workspace_publisher = \Drupal::service('workspaces.operation_factory')->getPublisher($this->workspaces['stage']);
        // Check which revisions need to be pushed.
        $expected = [
            'node' => [
                3 => 1,
                4 => 2,
                5 => 3,
                7 => 4,
            ],
        ];
        $this->assertEquals($expected, $workspace_publisher->getDifferringRevisionIdsOnSource());
        $this->workspaces['stage']
            ->publish();
        $this->assertWorkspaceStatus($test_scenarios['push_stage_to_live'], 'node');
        $this->assertWorkspaceAssociation($expected_workspace_association['push_stage_to_live'], 'node');
        // Check that all the revisions that were published to 'Live' were also
        // marked as default revisions in their revision metadata field.
        $published_revisions = $this->entityTypeManager
            ->getStorage('node')
            ->loadMultipleRevisions(array_keys($expected['node']));
        foreach ($published_revisions as $published_revision) {
            $this->assertTrue($published_revision->wasDefaultRevision());
        }
        // Check that there are no more revisions to push.
        $this->assertEmpty($workspace_publisher->getDifferringRevisionIdsOnSource());
    }
    
    /**
     * Tests the workspace association data integrity for entity CRUD operations.
     *
     * @covers ::workspaces_entity_presave
     * @covers ::workspaces_entity_insert
     * @covers ::workspaces_entity_delete
     * @covers ::workspaces_entity_revision_delete
     */
    public function testWorkspaceAssociationDataIntegrity() : void {
        $this->initializeWorkspacesModule();
        // Check the initial empty state.
        $expected_workspace_association = [
            'stage' => [],
        ];
        $this->assertWorkspaceAssociation($expected_workspace_association, 'node');
        // Add a new unpublished node in 'stage' and check that new revision is
        // tracked in the workspace association data.
        $this->switchToWorkspace('stage');
        $unpublished_node = $this->createNode([
            'title' => 'stage - 3 - r3 - unpublished',
            'created' => $this->createdTimestamp++,
            'status' => FALSE,
        ]);
        $expected_workspace_association = [
            'stage' => [
                3,
            ],
        ];
        $this->assertWorkspaceAssociation($expected_workspace_association, 'node');
        // Add a new revision for the unpublished node.
        $unpublished_node->title = 'stage - 3 - r4 - unpublished';
        $unpublished_node->save();
        $expected_workspace_association = [
            'stage' => [
                4,
            ],
        ];
        $this->assertWorkspaceAssociation($expected_workspace_association, 'node');
        // Delete the unpublished node and check that the association data has been
        // updated.
        $unpublished_node->delete();
        $expected_workspace_association = [
            'stage' => [],
        ];
        $this->assertWorkspaceAssociation($expected_workspace_association, 'node');
        // Add a new published node in 'stage' and check that new workspace-specific
        // revision is tracked in the workspace association data. Note that revision
        // '5' has been created as an unpublished default revision in Live, so it is
        // not tracked.
        $node = $this->createNode([
            'title' => 'stage - 4 - r6 - published',
            'created' => $this->createdTimestamp++,
            'status' => TRUE,
        ]);
        $expected_workspace_association = [
            'stage' => [
                6,
            ],
        ];
        $this->assertWorkspaceAssociation($expected_workspace_association, 'node');
        // Check that the entity object that was saved has been updated to point to
        // the workspace-specific revision.
        $this->assertEquals(6, $node->getRevisionId());
        // Delete revision '6' and check that the workspace association does not
        // track it anymore.
        $this->entityTypeManager
            ->getStorage('node')
            ->deleteRevision(6);
        $expected_workspace_association = [
            'stage' => [],
        ];
        $this->assertWorkspaceAssociation($expected_workspace_association, 'node');
    }
    
    /**
     * Tests entity tracking in workspace descendants.
     */
    public function testWorkspaceHierarchy() : void {
        $this->initializeWorkspacesModule();
        $this->createWorkspaceHierarchy();
        // The two pre-existing nodes are not overridden in any non-default
        // workspace.
        $expected_workspace_association = [
            'stage' => [],
            'dev' => [],
            'local_1' => [],
            'local_2' => [],
            'qa' => [],
        ];
        $this->assertWorkspaceAssociation($expected_workspace_association, 'node');
        // Create a new revision for a node in 'stage' and check that it's tracked
        // in all descendants.
        $this->switchToWorkspace('stage');
        $node = $this->entityTypeManager
            ->getStorage('node')
            ->load(1);
        $node->setTitle('stage - 1 - r3');
        $node->save();
        $expected_workspace_association = [
            'stage' => [
                3,
            ],
            'dev' => [
                3,
            ],
            'local_1' => [
                3,
            ],
            'local_2' => [
                3,
            ],
            'qa' => [],
        ];
        $this->assertWorkspaceAssociation($expected_workspace_association, 'node');
        // Create a new published node in 'stage' (which creates two revisions), and
        // check that it's tracked in all its descendants.
        $this->switchToWorkspace('stage');
        $this->createNode([
            'title' => 'stage - 3 - r5 - published',
            'created' => $this->createdTimestamp++,
            'status' => TRUE,
        ]);
        $expected_workspace_association = [
            'stage' => [
                3,
                5,
            ],
            'dev' => [
                3,
                5,
            ],
            'local_1' => [
                3,
                5,
            ],
            'local_2' => [
                3,
                5,
            ],
            'qa' => [],
        ];
        $this->assertWorkspaceAssociation($expected_workspace_association, 'node');
        // Create a new revision in `dev` and check that it's also tracked in
        // 'local_1' and 'local_2'.
        $this->switchToWorkspace('dev');
        $node = $this->entityTypeManager
            ->getStorage('node')
            ->load(1);
        $node->setTitle('dev - 1 - r6');
        $node->save();
        $expected_workspace_association = [
            'stage' => [
                3,
                5,
            ],
            'dev' => [
                5,
                6,
            ],
            'local_1' => [
                5,
                6,
            ],
            'local_2' => [
                5,
                6,
            ],
            'qa' => [],
        ];
        $this->assertWorkspaceAssociation($expected_workspace_association, 'node');
        // Create a new revision in 'local_1', then a different one in 'dev', which
        // should only be tracked in `dev` and 'local_2', because 'local_1' is no
        // longer inheriting from 'dev'.
        $this->switchToWorkspace('local_1');
        $node = $this->entityTypeManager
            ->getStorage('node')
            ->load(1);
        $node->setTitle('local_1 - 1 - r7');
        $node->save();
        $expected_workspace_association = [
            'stage' => [
                3,
                5,
            ],
            'dev' => [
                5,
                6,
            ],
            'local_1' => [
                5,
                7,
            ],
            'local_2' => [
                5,
                6,
            ],
            'qa' => [],
        ];
        $this->assertWorkspaceAssociation($expected_workspace_association, 'node');
        $this->switchToWorkspace('dev');
        $node = $this->entityTypeManager
            ->getStorage('node')
            ->load(1);
        $node->setTitle('dev - 1 - r8');
        $node->save();
        $expected_workspace_association = [
            'stage' => [
                3,
                5,
            ],
            'dev' => [
                5,
                8,
            ],
            'local_1' => [
                5,
                7,
            ],
            'local_2' => [
                5,
                8,
            ],
            'qa' => [],
        ];
        $this->assertWorkspaceAssociation($expected_workspace_association, 'node');
        // Add a child workspace for 'dev' and check that it inherits all the parent
        // associations by default.
        $this->workspaces['local_3'] = Workspace::create([
            'id' => 'local_3',
            'parent' => 'dev',
        ]);
        $this->workspaces['local_3']
            ->save();
        $expected_workspace_association = [
            'stage' => [
                3,
                5,
            ],
            'dev' => [
                5,
                8,
            ],
            'local_1' => [
                5,
                7,
            ],
            'local_2' => [
                5,
                8,
            ],
            'local_3' => [
                5,
                8,
            ],
            'qa' => [],
        ];
        $this->assertWorkspaceAssociation($expected_workspace_association, 'node');
        // Check that a workspace that is not at the top level can not be published.
        $this->expectException(WorkspacePublishException::class);
        $this->expectExceptionMessage('Only top-level workspaces can be published.');
        $this->workspaces['dev']
            ->publish();
    }
    
    /**
     * Tests workspace publishing as anonymous user, simulating a CLI request.
     */
    public function testCliPublishing() : void {
        $this->initializeWorkspacesModule();
        $this->switchToWorkspace('stage');
        // Add a workspace-specific revision to a pre-existing node.
        $node = $this->entityTypeManager
            ->getStorage('node')
            ->load(2);
        $node->title->value = 'stage - 2 - r3 - published';
        $node->save();
        // Switch to an anonymous user account and the 'Live' workspace.
        \Drupal::service('account_switcher')->switchTo(new AnonymousUserSession());
        \Drupal::service('workspaces.manager')->switchToLive();
        // Publish the workspace as anonymous, simulating a CLI request.
        $this->workspaces['stage']
            ->publish();
    }
    
    /**
     * Tests entity query overrides without any conditions.
     */
    public function testEntityQueryWithoutConditions() : void {
        $this->initializeWorkspacesModule();
        $this->switchToWorkspace('stage');
        // Add a workspace-specific revision to a pre-existing node.
        $node = $this->entityTypeManager
            ->getStorage('node')
            ->load(2);
        $node->title->value = 'stage - 2 - r3 - published';
        $node->save();
        $query = $this->entityTypeManager
            ->getStorage('node')
            ->getQuery()
            ->accessCheck(FALSE);
        $query->sort('nid');
        $query->pager(1);
        $result = $query->execute();
        $this->assertSame([
            1 => '1',
        ], $result);
        $query = $this->entityTypeManager
            ->getStorage('node')
            ->getQuery()
            ->accessCheck(FALSE);
        $query->sort('nid', 'DESC');
        $query->pager(10);
        $result = $query->execute();
        $this->assertSame([
            3 => '2',
            1 => '1',
        ], $result);
    }
    
    /**
     * Tests the Entity Query relationship API with workspaces.
     */
    public function testEntityQueryRelationship() : void {
        $this->initializeWorkspacesModule();
        // Add an entity reference field that targets 'entity_test_mulrevpub'
        // entities.
        $this->createEntityReferenceField('node', 'page', 'field_test_entity', 'Test entity reference', 'entity_test_mulrevpub');
        // Add an entity reference field that targets 'node' entities so we can test
        // references to the same base tables.
        $this->createEntityReferenceField('node', 'page', 'field_test_node', 'Test node reference', 'node');
        $this->switchToWorkspace('live');
        $node_1 = $this->createNode([
            'title' => 'live node 1',
        ]);
        $entity_test = EntityTestMulRevPub::create([
            'name' => 'live entity_test_mulrevpub',
            'non_rev_field' => 'live non-revisionable value',
        ]);
        $entity_test->save();
        $node_2 = $this->createNode([
            'title' => 'live node 2',
            'field_test_entity' => $entity_test->id(),
            'field_test_node' => $node_1->id(),
        ]);
        // Switch to the 'stage' workspace and change some values for the referenced
        // entities.
        $this->switchToWorkspace('stage');
        $node_1->title->value = 'stage node 1';
        $node_1->save();
        $node_2->title->value = 'stage node 2';
        $node_2->save();
        $entity_test->name->value = 'stage entity_test_mulrevpub';
        $entity_test->non_rev_field->value = 'stage non-revisionable value';
        $entity_test->save();
        // Make sure that we're requesting the default revision.
        $query = $this->entityTypeManager
            ->getStorage('node')
            ->getQuery()
            ->accessCheck(FALSE);
        $query->currentRevision();
        $query->condition('title', 'stage node 2')
            ->condition('revision_uid', $node_2->getRevisionUserId())
            ->condition('type', $node_2->bundle())
            ->condition('uuid', $node_2->uuid());
        // Add conditions for a reference to the same entity type.
        $query->condition('field_test_node.entity.title', 'stage node 1')
            ->condition('field_test_node.entity.revision_uid', $node_1->getRevisionUserId())
            ->condition('field_test_node.entity.type', $node_1->bundle())
            ->condition('field_test_node.entity.uuid', $node_1->uuid());
        // Add conditions for a reference to a different entity type.
        // @todo Re-enable the two conditions below when we find a way to not join
        //   the workspace_association table for every duplicate entity base table
        //   join.
        // @see https://www.drupal.org/project/drupal/issues/2983639
        $query->condition('field_test_entity.entity.uuid', $entity_test->uuid());
        $result = $query->execute();
        $this->assertSame([
            $node_2->getRevisionId() => $node_2->id(),
        ], $result);
    }
    
    /**
     * Tests CREATE operations for unsupported entity types.
     *
     * @dataProvider providerTestAllowedEntityCrudInNonDefaultWorkspace
     */
    public function testDisallowedEntityCreateInNonDefaultWorkspace($entity_type_id, $allowed) : void {
        $this->initializeWorkspacesModule();
        
        /** @var \Drupal\Core\Entity\ContentEntityStorageInterface $storage */
        $storage = $this->entityTypeManager
            ->getStorage($entity_type_id);
        // Switch to a non-default workspace and check whether creating a new entity
        // is allowed.
        $this->switchToWorkspace('stage');
        $entity = $storage->createWithSampleValues($entity_type_id);
        if ($entity_type_id === 'workspace') {
            $entity->id = 'test';
        }
        if (!$allowed) {
            $this->expectException(EntityStorageException::class);
            $this->expectExceptionMessage('This entity can only be saved in the default workspace.');
        }
        $entity->save();
    }
    
    /**
     * Tests UPDATE operations for unsupported entity types.
     *
     * @dataProvider providerTestAllowedEntityCrudInNonDefaultWorkspace
     */
    public function testDisallowedEntityUpdateInNonDefaultWorkspace($entity_type_id, $allowed) : void {
        $this->initializeWorkspacesModule();
        
        /** @var \Drupal\Core\Entity\ContentEntityStorageInterface $storage */
        $storage = $this->entityTypeManager
            ->getStorage($entity_type_id);
        // Create the entity in the default workspace.
        $this->workspaceManager
            ->switchToLive();
        $entity = $storage->createWithSampleValues($entity_type_id);
        if ($entity_type_id === 'workspace') {
            $entity->id = 'test';
        }
        $entity->save();
        // Switch to a non-default workspace and check whether updating the entity
        // is allowed.
        $this->switchToWorkspace('stage');
        $entity->created->value = 1;
        if (!$allowed) {
            $this->expectException(EntityStorageException::class);
            $this->expectExceptionMessage('This entity can only be saved in the default workspace.');
        }
        $entity->save();
    }
    
    /**
     * Tests DELETE operations for unsupported entity types.
     *
     * @dataProvider providerTestAllowedEntityCrudInNonDefaultWorkspace
     */
    public function testDisallowedEntityDeleteInNonDefaultWorkspace($entity_type_id, $allowed) : void {
        $this->initializeWorkspacesModule();
        
        /** @var \Drupal\Core\Entity\ContentEntityStorageInterface $storage */
        $storage = $this->entityTypeManager
            ->getStorage($entity_type_id);
        // Create the entity in the default workspace.
        $this->workspaceManager
            ->switchToLive();
        $entity = $storage->createWithSampleValues($entity_type_id);
        if ($entity_type_id === 'workspace') {
            $entity->id = 'test';
        }
        $entity->save();
        // Switch to a non-default workspace and check whether deleting the entity
        // is allowed.
        $this->switchToWorkspace('stage');
        if (!$allowed) {
            $this->expectException(EntityStorageException::class);
            $this->expectExceptionMessage("This {$entity->getEntityType()->getSingularLabel()} can only be deleted in the Live workspace.");
        }
        $entity->delete();
    }
    
    /**
     * Data provider for allowed entity CRUD operations.
     */
    public static function providerTestAllowedEntityCrudInNonDefaultWorkspace() {
        return [
            'workspace-provided non-internal entity type' => [
                'entity_type_id' => 'workspace',
                'allowed' => TRUE,
            ],
            'internal entity type' => [
                'entity_type_id' => 'entity_test_no_label',
                'allowed' => TRUE,
            ],
            'non-internal entity type' => [
                'entity_type_id' => 'entity_test_mulrev',
                'allowed' => FALSE,
            ],
        ];
    }
    
    /**
     * @covers \Drupal\workspaces\WorkspaceManager::executeInWorkspace
     */
    public function testExecuteInWorkspaceContext() : void {
        $this->initializeWorkspacesModule();
        // Create an entity in the default workspace.
        $this->workspaceManager
            ->switchToLive();
        $node = $this->createNode([
            'title' => 'live node 1',
        ]);
        $node->save();
        // Switch to the 'stage' workspace and change some values for the referenced
        // entities.
        $this->switchToWorkspace('stage');
        $node->title->value = 'stage node 1';
        $node->save();
        // Switch back to the default workspace and run the baseline assertions.
        $this->workspaceManager
            ->switchToLive();
        $storage = $this->entityTypeManager
            ->getStorage('node');
        $this->assertFalse($this->workspaceManager
            ->hasActiveWorkspace());
        $live_node = $storage->load($node->id());
        $this->assertEquals('live node 1', $live_node->title->value);
        $result = $storage->getQuery()
            ->accessCheck(FALSE)
            ->condition('title', 'live node 1')
            ->execute();
        $this->assertEquals([
            $live_node->getRevisionId() => $node->id(),
        ], $result);
        // Try the same assertions in the context of the 'stage' workspace.
        $this->workspaceManager
            ->executeInWorkspace('stage', function () use ($node, $storage) {
            $this->assertEquals('stage', $this->workspaceManager
                ->getActiveWorkspace()
                ->id());
            $stage_node = $storage->load($node->id());
            $this->assertEquals('stage node 1', $stage_node->title->value);
            $result = $storage->getQuery()
                ->accessCheck(FALSE)
                ->condition('title', 'stage node 1')
                ->execute();
            $this->assertEquals([
                $stage_node->getRevisionId() => $stage_node->id(),
            ], $result);
        });
        // Check that the 'stage' workspace was not persisted by the workspace
        // manager.
        $this->assertFalse($this->workspaceManager
            ->getActiveWorkspace());
    }
    
    /**
     * Checks entity load, entity queries and views results for a test scenario.
     *
     * @param array $expected
     *   An array of expected values, as defined in ::testWorkspaces().
     * @param string $entity_type_id
     *   The ID of the entity type that is being tested.
     *
     * @internal
     */
    protected function assertWorkspaceStatus(array $expected, string $entity_type_id) : void {
        $expected = $this->flattenExpectedValues($expected, $entity_type_id);
        $entity_keys = $this->entityTypeManager
            ->getDefinition($entity_type_id)
            ->getKeys();
        foreach ($expected as $workspace_id => $expected_values) {
            $this->switchToWorkspace($workspace_id);
            // Check that default revisions are swapped with the workspace revision.
            $this->assertEntityLoad($expected_values, $entity_type_id);
            // Check that non-default revisions are not changed.
            $this->assertEntityRevisionLoad($expected_values, $entity_type_id);
            // Check that entity queries return the correct results.
            $this->assertEntityQuery($expected_values, $entity_type_id);
            // Check that the 'Frontpage' view only shows published content that is
            // also considered as the default revision in the given workspace.
            $expected_frontpage = array_filter($expected_values, function ($expected_value) {
                return $expected_value['status'] === TRUE && $expected_value['default_revision'] === TRUE;
            });
            // The 'Frontpage' view will output nodes in reverse creation order.
            usort($expected_frontpage, function ($a, $b) {
                return $b['nid'] - $a['nid'];
            });
            $view = Views::getView('frontpage');
            $view->execute();
            $this->assertIdenticalResultset($view, $expected_frontpage, [
                'nid' => 'nid',
            ]);
            $rendered_view = $view->render('page_1');
            $output = \Drupal::service('renderer')->renderRoot($rendered_view);
            $this->setRawContent($output);
            foreach ($expected_values as $expected_entity_values) {
                if ($expected_entity_values[$entity_keys['published']] === TRUE && $expected_entity_values['default_revision'] === TRUE) {
                    $this->assertRaw($expected_entity_values[$entity_keys['label']]);
                }
                elseif ($workspace_id != 'stage' && $expected_entity_values[$entity_keys['id']] != 4) {
                    $this->assertNoRaw($expected_entity_values[$entity_keys['label']]);
                }
            }
        }
    }
    
    /**
     * Asserts that default revisions are properly swapped in a workspace.
     *
     * @param array $expected_values
     *   An array of expected values, as defined in ::testWorkspaces().
     * @param string $entity_type_id
     *   The ID of the entity type to check.
     *
     * @internal
     */
    protected function assertEntityLoad(array $expected_values, string $entity_type_id) : void {
        // Filter the expected values so we can check only the default revisions.
        $expected_default_revisions = array_filter($expected_values, function ($expected_value) {
            return $expected_value['default_revision'] === TRUE;
        });
        $entity_keys = $this->entityTypeManager
            ->getDefinition($entity_type_id)
            ->getKeys();
        $id_key = $entity_keys['id'];
        $revision_key = $entity_keys['revision'];
        $label_key = $entity_keys['label'];
        $published_key = $entity_keys['published'];
        // Check \Drupal\Core\Entity\EntityStorageInterface::loadMultiple().
        
        /** @var \Drupal\Core\Entity\RevisionableInterface[]|\Drupal\Core\Entity\EntityPublishedInterface[] $entities */
        $entities = $this->entityTypeManager
            ->getStorage($entity_type_id)
            ->loadMultiple(array_column($expected_default_revisions, $id_key));
        foreach ($expected_default_revisions as $expected_default_revision) {
            $entity_id = $expected_default_revision[$id_key];
            $this->assertEquals($expected_default_revision[$revision_key], $entities[$entity_id]->getRevisionId());
            $this->assertEquals($expected_default_revision[$label_key], $entities[$entity_id]->label());
            $this->assertEquals($expected_default_revision[$published_key], $entities[$entity_id]->isPublished());
        }
        // Check loading entities one by one. It is important to do these checks
        // after the "multiple load" ones above so we can test with a fully warmed
        // static cache.
        foreach ($expected_default_revisions as $expected_default_revision) {
            $entity_id = $expected_default_revision[$id_key];
            $entities = $this->entityTypeManager
                ->getStorage($entity_type_id)
                ->loadMultiple([
                $entity_id,
            ]);
            $this->assertCount(1, $entities);
            $this->assertEquals($expected_default_revision[$revision_key], $entities[$entity_id]->getRevisionId());
            $this->assertEquals($expected_default_revision[$label_key], $entities[$entity_id]->label());
            $this->assertEquals($expected_default_revision[$published_key], $entities[$entity_id]->isPublished());
        }
        // Check \Drupal\Core\Entity\EntityStorageInterface::loadUnchanged().
        foreach ($expected_default_revisions as $expected_default_revision) {
            
            /** @var \Drupal\Core\Entity\RevisionableInterface|\Drupal\Core\Entity\EntityPublishedInterface $entity */
            $entity = $this->entityTypeManager
                ->getStorage($entity_type_id)
                ->loadUnchanged($expected_default_revision[$id_key]);
            $this->assertEquals($expected_default_revision[$revision_key], $entity->getRevisionId());
            $this->assertEquals($expected_default_revision[$label_key], $entity->label());
            $this->assertEquals($expected_default_revision[$published_key], $entity->isPublished());
        }
    }
    
    /**
     * Asserts that non-default revisions are not changed.
     *
     * @param array $expected_values
     *   An array of expected values, as defined in ::testWorkspaces().
     * @param string $entity_type_id
     *   The ID of the entity type to check.
     *
     * @internal
     */
    protected function assertEntityRevisionLoad(array $expected_values, string $entity_type_id) : void {
        $entity_keys = $this->entityTypeManager
            ->getDefinition($entity_type_id)
            ->getKeys();
        $id_key = $entity_keys['id'];
        $revision_key = $entity_keys['revision'];
        $label_key = $entity_keys['label'];
        $published_key = $entity_keys['published'];
        
        /** @var \Drupal\Core\Entity\RevisionableInterface[]|\Drupal\Core\Entity\EntityPublishedInterface[] $entities */
        $entities = $this->entityTypeManager
            ->getStorage($entity_type_id)
            ->loadMultipleRevisions(array_column($expected_values, $revision_key));
        foreach ($expected_values as $expected_revision) {
            $revision_id = $expected_revision[$revision_key];
            $this->assertEquals($expected_revision[$id_key], $entities[$revision_id]->id());
            $this->assertEquals($expected_revision[$revision_key], $entities[$revision_id]->getRevisionId());
            $this->assertEquals($expected_revision[$label_key], $entities[$revision_id]->label());
            $this->assertEquals($expected_revision[$published_key], $entities[$revision_id]->isPublished());
        }
    }
    
    /**
     * Asserts that entity queries are giving the correct results in a workspace.
     *
     * @param array $expected_values
     *   An array of expected values, as defined in ::testWorkspaces().
     * @param string $entity_type_id
     *   The ID of the entity type to check.
     *
     * @internal
     */
    protected function assertEntityQuery(array $expected_values, string $entity_type_id) : void {
        $storage = $this->entityTypeManager
            ->getStorage($entity_type_id);
        $entity_keys = $this->entityTypeManager
            ->getDefinition($entity_type_id)
            ->getKeys();
        $id_key = $entity_keys['id'];
        $revision_key = $entity_keys['revision'];
        $label_key = $entity_keys['label'];
        $published_key = $entity_keys['published'];
        // Filter the expected values so we can check only the default revisions.
        $expected_default_revisions = array_filter($expected_values, function ($expected_value) {
            return $expected_value['default_revision'] === TRUE;
        });
        // Check entity query counts.
        $result = (int) $storage->getQuery()
            ->accessCheck(FALSE)
            ->count()
            ->execute();
        $this->assertSame(count($expected_default_revisions), $result);
        $result = (int) $storage->getAggregateQuery()
            ->accessCheck(FALSE)
            ->count()
            ->execute();
        $this->assertSame(count($expected_default_revisions), $result);
        // Check entity queries with no conditions.
        $result = $storage->getQuery()
            ->accessCheck(FALSE)
            ->execute();
        $expected_result = array_combine(array_column($expected_default_revisions, $revision_key), array_column($expected_default_revisions, $id_key));
        $this->assertEquals($expected_result, $result);
        // Check querying each revision individually.
        foreach ($expected_values as $expected_value) {
            $query = $storage->getQuery()
                ->accessCheck(FALSE);
            $query->condition($entity_keys['id'], $expected_value[$id_key])
                ->condition($entity_keys['label'], $expected_value[$label_key])
                ->condition($entity_keys['published'], (int) $expected_value[$published_key]);
            // If the entity is not expected to be the default revision, we need to
            // query all revisions if we want to find it.
            if (!$expected_value['default_revision']) {
                $query->allRevisions();
            }
            $result = $query->execute();
            $this->assertEquals([
                $expected_value[$revision_key] => $expected_value[$id_key],
            ], $result);
        }
    }
    
    /**
     * Flattens the expectations array defined by testWorkspaces().
     *
     * @param array $expected
     *   An array as defined by testWorkspaces().
     * @param string $entity_type_id
     *   The ID of the entity type that is being tested.
     *
     * @return array
     *   An array where all the entity IDs and revision IDs are merged inside each
     *   expected values array.
     */
    protected function flattenExpectedValues(array $expected, $entity_type_id) {
        $flattened = [];
        $entity_keys = $this->entityTypeManager
            ->getDefinition($entity_type_id)
            ->getKeys();
        foreach ($expected as $workspace_id => $workspace_values) {
            foreach ($workspace_values as $entity_id => $entity_revisions) {
                foreach ($entity_revisions as $revision_id => $revision_values) {
                    $flattened[$workspace_id][] = [
                        $entity_keys['id'] => $entity_id,
                        $entity_keys['revision'] => $revision_id,
                    ] + $revision_values;
                }
            }
        }
        return $flattened;
    }
    
    /**
     * Tests that entity forms can be stored in the form cache.
     */
    public function testFormCacheForEntityForms() : void {
        $this->initializeWorkspacesModule();
        $this->switchToWorkspace('stage');
        $form_builder = $this->container
            ->get('form_builder');
        $form = $this->entityTypeManager
            ->getFormObject('entity_test_mulrevpub', 'default');
        $form->setEntity(EntityTestMulRevPub::create([]));
        $form_state = new FormState();
        $built_form = $form_builder->buildForm($form, $form_state);
        $form_builder->setCache($built_form['#build_id'], $built_form, $form_state);
    }
    
    /**
     * Tests that non-entity forms can be stored in the form cache.
     */
    public function testFormCacheForRegularForms() : void {
        $this->initializeWorkspacesModule();
        $this->switchToWorkspace('stage');
        $form_builder = $this->container
            ->get('form_builder');
        $form_state = new FormState();
        $built_form = $form_builder->getForm(SiteInformationForm::class, $form_state);
        $form_builder->setCache($built_form['#build_id'], $built_form, $form_state);
    }
    
    /**
     * Tests publishing with fields in dedicated table storage.
     */
    public function testPublishWorkspaceDedicatedTableStorage() : void {
        $this->initializeWorkspacesModule();
        $node_storage = $this->entityTypeManager
            ->getStorage('node');
        $this->workspaceManager
            ->switchToLive();
        $node = $node_storage->create([
            'title' => 'Foo title',
            // Use the body field on node as a test case because it requires dedicated
            // table storage.
'body' => 'Foo body',
            'type' => 'page',
        ]);
        $node->save();
        $this->switchToWorkspace('stage');
        $node->title = 'Bar title';
        $node->body = 'Bar body';
        $node->save();
        $this->workspaces['stage']
            ->publish();
        $this->workspaceManager
            ->switchToLive();
        $reloaded = $node_storage->load($node->id());
        $this->assertEquals('Bar title', $reloaded->title->value);
        $this->assertEquals('Bar body', $reloaded->body->value);
    }
    
    /**
     * Tests workspace publishing is not sensitive to node access.
     *
     * The node_access_test module makes anonymous nodes unviewable,
     * so enable it and test getDifferringRevisionIdsOnTarget() with an anonymous
     * node.
     */
    public function testNodeAccessDifferringRevisionIdsOnTarget() : void {
        $this->initializeWorkspacesModule();
        \Drupal::service('module_installer')->install([
            'node_access_test',
        ]);
        node_access_rebuild();
        // Edit node 1 in 'stage'.
        $this->switchToWorkspace('stage');
        $node = $this->entityTypeManager
            ->getStorage('node')
            ->load(1);
        $node->setTitle('stage - 1 - r3 - unpublished');
        $node->save();
        // Edit node 1 in 'live', and ensure it's anonymous.
        $this->switchToWorkspace('live');
        $node = $this->entityTypeManager
            ->getStorage('node')
            ->load(1);
        $node->setTitle('live - 1 - r4 - unpublished');
        $node->set('uid', 0);
        $node->save();
        
        /** @var \Drupal\workspaces\WorkspacePublisher $workspace_publisher */
        $workspace_publisher = \Drupal::service('workspaces.operation_factory')->getPublisher($this->workspaces['stage']);
        // Check which revisions are tracked on stage but differ on target.
        $expected = [
            'node' => [
                4 => 1,
            ],
        ];
        $this->assertEquals($expected, $workspace_publisher->getDifferringRevisionIdsOnTarget());
        // Check that there are no more revisions to push after publishing.
        $this->workspaces['stage']
            ->publish();
        $this->assertEmpty($workspace_publisher->getDifferringRevisionIdsOnTarget());
    }

}