--- /dev/null
+<?php
+
+namespace Drupal\Tests\content_moderation\Kernel;
+
+use Drupal\entity_test\Entity\EntityTestNoBundle;
+use Drupal\language\Entity\ConfigurableLanguage;
+use Drupal\node\Entity\Node;
+use Drupal\node\Entity\NodeType;
+use Drupal\Tests\views\Kernel\ViewsKernelTestBase;
+use Drupal\views\Views;
+use Drupal\workflows\Entity\Workflow;
+
+/**
+ * Tests the views 'moderation_state_filter' filter plugin.
+ *
+ * @coversDefaultClass \Drupal\content_moderation\Plugin\views\filter\ModerationStateFilter
+ *
+ * @group content_moderation
+ */
+class ViewsModerationStateFilterTest extends ViewsKernelTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = [
+ 'content_moderation_test_views',
+ 'node',
+ 'content_moderation',
+ 'workflows',
+ 'workflow_type_test',
+ 'entity_test',
+ 'language',
+ 'content_translation',
+ ];
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUp($import_test_views = TRUE) {
+ parent::setUp(FALSE);
+
+ $this->installEntitySchema('user');
+ $this->installEntitySchema('node');
+ $this->installEntitySchema('content_moderation_state');
+ $this->installEntitySchema('entity_test_no_bundle');
+ $this->installSchema('node', 'node_access');
+ $this->installConfig('content_moderation_test_views');
+ $this->installConfig('content_moderation');
+
+ $node_type = NodeType::create([
+ 'type' => 'example',
+ ]);
+ $node_type->save();
+
+ $node_type = NodeType::create([
+ 'type' => 'another_example',
+ ]);
+ $node_type->save();
+
+ $node_type = NodeType::create([
+ 'type' => 'example_non_moderated',
+ ]);
+ $node_type->save();
+
+ ConfigurableLanguage::createFromLangcode('fr')->save();
+ }
+
+ /**
+ * Tests the content moderation state filter.
+ */
+ public function testStateFilterViewsRelationship() {
+ $workflow = Workflow::load('editorial');
+ $workflow->getTypePlugin()->addEntityTypeAndBundle('node', 'example');
+ $workflow->getTypePlugin()->addState('translated_draft', 'Bar');
+ $configuration = $workflow->getTypePlugin()->getConfiguration();
+ $configuration['states']['translated_draft'] += [
+ 'published' => FALSE,
+ 'default_revision' => FALSE,
+ ];
+ $workflow->getTypePlugin()->setConfiguration($configuration);
+ $workflow->save();
+
+ // Create a published default revision and one forward draft revision.
+ $node = Node::create([
+ 'type' => 'example',
+ 'title' => 'Test Node',
+ 'moderation_state' => 'published',
+ ]);
+ $node->save();
+ $node->setNewRevision();
+ $node->moderation_state = 'draft';
+ $node->save();
+
+ // Create a draft default revision.
+ $second_node = Node::create([
+ 'type' => 'example',
+ 'title' => 'Second Node',
+ 'moderation_state' => 'draft',
+ ]);
+ $second_node->save();
+
+ // Create a published default revision.
+ $third_node = Node::create([
+ 'type' => 'example',
+ 'title' => 'Third node',
+ 'moderation_state' => 'published',
+ ]);
+ $third_node->save();
+
+ // Add a non-moderated node.
+ $fourth_node = Node::create([
+ 'type' => 'example_non_moderated',
+ 'title' => 'Fourth node',
+ ]);
+ $fourth_node->save();
+
+ // Create a translated published revision.
+ $translated_forward_revision = $third_node->addTranslation('fr');
+ $translated_forward_revision->title = 'Translated Node';
+ $translated_forward_revision->setNewRevision(TRUE);
+ $translated_forward_revision->moderation_state = 'translated_draft';
+ $translated_forward_revision->save();
+
+ // The three default revisions are listed when no filter is specified.
+ $this->assertNodesWithFilters([$node, $second_node, $third_node], []);
+
+ // The default revision of node one and three are published.
+ $this->assertNodesWithFilters([$node, $third_node], [
+ 'default_revision_state' => 'editorial-published',
+ ]);
+
+ // The default revision of node two is draft.
+ $this->assertNodesWithFilters([$second_node], [
+ 'default_revision_state' => 'editorial-draft',
+ ]);
+
+ // Test the same three revisions on a view displaying content revisions.
+ // Both nodes have one draft revision.
+ $this->assertNodesWithFilters([$node, $second_node], [
+ 'moderation_state' => 'editorial-draft',
+ ], 'test_content_moderation_state_filter_revision_table');
+ // Creating a new forward revision of node three, creates a second published
+ // revision of of the original language, hence there are two published
+ // revisions of node three.
+ $this->assertNodesWithFilters([$node, $third_node, $third_node], [
+ 'moderation_state' => 'editorial-published',
+ ], 'test_content_moderation_state_filter_revision_table');
+ // There is a single forward translated revision with a new state, which is
+ // also filterable.
+ $this->assertNodesWithFilters([$translated_forward_revision], [
+ 'moderation_state' => 'editorial-translated_draft',
+ ], 'test_content_moderation_state_filter_revision_table');
+ }
+
+ /**
+ * Test the moderation filter with a non-translatable entity type.
+ */
+ public function testNonTranslatableEntityType() {
+ $workflow = Workflow::load('editorial');
+ $workflow->getTypePlugin()->addEntityTypeAndBundle('entity_test_no_bundle', 'entity_test_no_bundle');
+ $workflow->save();
+
+ $test_entity = EntityTestNoBundle::create([
+ 'moderation_state' => 'draft',
+ ]);
+ $test_entity->save();
+
+ $view = Views::getView('test_content_moderation_state_filter_entity_test');
+ $view->setExposedInput([
+ 'moderation_state' => 'editorial-draft',
+ ]);
+ $view->execute();
+ $this->assertIdenticalResultset($view, [['id' => $test_entity->id()]], ['id' => 'id']);
+ }
+
+ /**
+ * Tests the list of states in the filter plugin.
+ */
+ public function testStateFilterStatesList() {
+ // By default a view of nodes will not have states to filter.
+ $this->assertPluginStates([]);
+
+ // Adding a content type to the editorial workflow will enable all of the
+ // editorial states.
+ $workflow = Workflow::load('editorial');
+ $workflow->getTypePlugin()->addEntityTypeAndBundle('node', 'example');
+ $workflow->save();
+ $this->assertPluginStates([
+ 'Editorial' => [
+ 'editorial-draft' => 'Draft',
+ 'editorial-published' => 'Published',
+ 'editorial-archived' => 'Archived',
+ ],
+ ]);
+
+ // Adding a workflow which is not content moderation will not add any
+ // additional states to the views filter.
+ $workflow = Workflow::create(['id' => 'test', 'type' => 'workflow_type_complex_test']);
+ $workflow->getTypePlugin()->addState('draft', 'Draft');
+ $workflow->save();
+ $this->assertPluginStates([
+ 'Editorial' => [
+ 'editorial-draft' => 'Draft',
+ 'editorial-published' => 'Published',
+ 'editorial-archived' => 'Archived',
+ ],
+ ]);
+
+ // Adding a new content moderation workflow will add additional states to
+ // filter.
+ $workflow = Workflow::create(['id' => 'moderation_test', 'type' => 'content_moderation', 'label' => 'Moderation test']);
+ $workflow->getTypePlugin()->addState('foo', 'Foo State');
+ $workflow->getTypePlugin()->addEntityTypeAndBundle('node', 'example');
+ $workflow->save();
+ $this->assertPluginStates([
+ 'Editorial' => [
+ 'editorial-draft' => 'Draft',
+ 'editorial-published' => 'Published',
+ 'editorial-archived' => 'Archived',
+ ],
+ 'Moderation test' => [
+ 'moderation_test-foo' => 'Foo State',
+ 'moderation_test-draft' => 'Draft',
+ 'moderation_test-published' => 'Published',
+ ],
+ ]);
+
+ // Deleting a workflow will remove the states from the filter.
+ $workflow = Workflow::load('moderation_test');
+ $workflow->delete();
+ $this->assertPluginStates([
+ 'Editorial' => [
+ 'editorial-draft' => 'Draft',
+ 'editorial-published' => 'Published',
+ 'editorial-archived' => 'Archived',
+ ],
+ ]);
+
+ // Deleting a state from a workflow will remove the state from the filter.
+ $workflow = Workflow::load('editorial');
+ $workflow->getTypePlugin()->deleteState('archived');
+ $workflow->save();
+ $this->assertPluginStates([
+ 'Editorial' => [
+ 'editorial-draft' => 'Draft',
+ 'editorial-published' => 'Published',
+ ],
+ ]);
+ }
+
+ /**
+ * Assert the plugin states.
+ *
+ * @param string[] $states
+ * The states which should appear in the filter.
+ */
+ protected function assertPluginStates($states) {
+ $plugin = Views::pluginManager('filter')->createInstance('moderation_state_filter', []);
+ $view = Views::getView('test_content_moderation_state_filter_base_table');
+ $plugin->init($view, $view->getDisplay());
+ $this->assertEquals($states, $plugin->getValueOptions());
+ }
+
+ /**
+ * Assert the nodes appear when the test view is executed.
+ *
+ * @param \Drupal\node\NodeInterface[] $nodes
+ * Nodes to assert are in the views result.
+ * @param array $filters
+ * An array of filters to apply to the view.
+ * @param string $view_id
+ * The view to execute for the results.
+ */
+ protected function assertNodesWithFilters(array $nodes, array $filters, $view_id = 'test_content_moderation_state_filter_base_table') {
+ $view = Views::getView($view_id);
+ $view->setExposedInput($filters);
+ $view->execute();
+
+ // Verify the join configuration.
+ $query = $view->getQuery();
+ $join = $query->getTableInfo('content_moderation_state')['join'];
+ $configuration = $join->configuration;
+ $this->assertEquals('content_moderation_state_field_revision', $configuration['table']);
+ $this->assertEquals('content_entity_revision_id', $configuration['field']);
+ $this->assertEquals('vid', $configuration['left_field']);
+ $this->assertEquals('content_entity_type_id', $configuration['extra'][0]['field']);
+ $this->assertEquals('node', $configuration['extra'][0]['value']);
+ $this->assertEquals('langcode', $configuration['extra'][1]['field']);
+ $this->assertEquals('langcode', $configuration['extra'][1]['left_field']);
+
+ $expected_result = [];
+ foreach ($nodes as $node) {
+ $expected_result[] = ['nid' => $node->id()];
+ }
+ $this->assertIdenticalResultset($view, $expected_result, ['nid' => 'nid']);
+ }
+
+}