class RenderCacheIntegrationTest

class RenderCacheIntegrationTest extends ViewsKernelTestBase {
    use AssertViewsCacheTagsTrait;
    
    /**
     * {@inheritdoc}
     */
    public static $testViews = [
        'test_view',
        'test_display',
        'entity_test_fields',
        'entity_test_row',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'entity_test',
        'user',
        'node',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp($import_test_views = TRUE) : void {
        parent::setUp();
        $this->installEntitySchema('entity_test');
        $this->installEntitySchema('user');
    }
    
    /**
     * Tests a field-based view's cache tags when using the "none" cache plugin.
     */
    public function testFieldBasedViewCacheTagsWithCachePluginNone() : void {
        $view = Views::getView('entity_test_fields');
        $view->getDisplay()
            ->overrideOption('cache', [
            'type' => 'none',
        ]);
        $view->save();
        $this->assertCacheTagsForFieldBasedView(FALSE);
    }
    
    /**
     * Tests a field-based view's cache tags when using the "tag" cache plugin.
     */
    public function testFieldBasedViewCacheTagsWithCachePluginTag() : void {
        $view = Views::getView('entity_test_fields');
        $view->getDisplay()
            ->overrideOption('cache', [
            'type' => 'tag',
        ]);
        $view->save();
        $this->assertCacheTagsForFieldBasedView(TRUE);
    }
    
    /**
     * Tests a field-based view's cache tags when using the "time" cache plugin.
     */
    public function testFieldBasedViewCacheTagsWithCachePluginTime() : void {
        $view = Views::getView('entity_test_fields');
        $view->getDisplay()
            ->overrideOption('cache', [
            'type' => 'time',
            'options' => [
                'results_lifespan' => 3600,
                'output_lifespan' => 3600,
            ],
        ]);
        $view->save();
        $this->assertCacheTagsForFieldBasedView(TRUE);
    }
    
    /**
     * Tests cache tags on output & result cache items for a field-based view.
     *
     * @param bool $do_assert_views_caches
     *   Whether to check Views' result & output caches.
     *
     * @internal
     */
    protected function assertCacheTagsForFieldBasedView(bool $do_assert_views_caches) : void {
        $view = Views::getView('entity_test_fields');
        // Empty result (no entities yet).
        $base_tags = [
            'config:views.view.entity_test_fields',
            'entity_test_list',
        ];
        $this->assertViewsCacheTags($view, $base_tags, $do_assert_views_caches, $base_tags);
        $this->assertViewsCacheTagsFromStaticRenderArray($view, $base_tags, $do_assert_views_caches);
        // Non-empty result (1 entity).
        
        /** @var \Drupal\Core\Entity\EntityInterface[] $entities */
        $entities[] = $entity = EntityTest::create();
        $entity->save();
        $tags_with_entity = Cache::mergeTags($base_tags, $entities[0]->getCacheTags());
        $this->assertViewsCacheTags($view, $tags_with_entity, $do_assert_views_caches, $tags_with_entity);
        $this->assertViewsCacheTagsFromStaticRenderArray($view, $tags_with_entity, $do_assert_views_caches);
        // Paged result (more entities than the items-per-page limit).
        for ($i = 0; $i < 5; $i++) {
            $entities[] = $entity = EntityTest::create();
            $entity->save();
        }
        // Test pager.
        // Page 1.
        \Drupal::request()->query
            ->set('page', 0);
        $tags_page_1 = Cache::mergeTags($base_tags, $entities[1]->getCacheTags());
        $tags_page_1 = Cache::mergeTags($tags_page_1, $entities[2]->getCacheTags());
        $tags_page_1 = Cache::mergeTags($tags_page_1, $entities[3]->getCacheTags());
        $tags_page_1 = Cache::mergeTags($tags_page_1, $entities[4]->getCacheTags());
        $tags_page_1 = Cache::mergeTags($tags_page_1, $entities[5]->getCacheTags());
        $this->assertViewsCacheTags($view, $tags_page_1, $do_assert_views_caches, $tags_page_1);
        $this->assertViewsCacheTagsFromStaticRenderArray($view, $tags_page_1, $do_assert_views_caches);
        $view->destroy();
        // Page 2.
        $view->setCurrentPage(1);
        \Drupal::request()->query
            ->set('page', 1);
        $tags_page_2 = Cache::mergeTags($base_tags, $entities[0]->getCacheTags());
        $this->assertViewsCacheTags($view, $tags_page_2, $do_assert_views_caches, $tags_page_2);
        $view->destroy();
        // Ensure that invalidation works on both pages.
        // Page 2.
        $view->setCurrentPage(1);
        \Drupal::request()->query
            ->set('page', 1);
        $entities[0]->name->value = $random_name = $this->randomMachineName();
        $entities[0]->save();
        $build = $this->assertViewsCacheTags($view, $tags_page_2, $do_assert_views_caches, $tags_page_2);
        // @todo Static render arrays don't support different pages yet, see
        //   https://www.drupal.org/node/2500701.
        // $this->assertViewsCacheTagsFromStaticRenderArray($view, $tags_page_2, $do_assert_views_caches);
        $this->assertStringContainsString($random_name, (string) $build['#markup']);
        $view->destroy();
        // Page 1.
        $view->setCurrentPage(0);
        \Drupal::request()->query
            ->set('page', 0);
        $entities[1]->name->value = $random_name = $this->randomMachineName();
        $entities[1]->save();
        $build = $this->assertViewsCacheTags($view, $tags_page_1, $do_assert_views_caches, $tags_page_1);
        $this->assertViewsCacheTagsFromStaticRenderArray($view, $tags_page_1, $do_assert_views_caches);
        $this->assertStringContainsString($random_name, (string) $build['#markup']);
        $view->destroy();
        // Setup arguments to ensure that render caching also varies by them.
        // Custom assert for a single result row.
        $single_entity_assertions = function (array $build, EntityInterface $entity) {
            $this->setRawContent($build['#markup']);
            $result = $this->cssSelect('div.views-row');
            $count = count($result);
            $this->assertEquals(1, $count);
            $this->assertEquals((string) $entity->id(), (string) $result[0]->div->span);
        };
        // Execute the view once with a static renderable and one with a full
        // prepared render array.
        $tags_argument = Cache::mergeTags($base_tags, $entities[0]->getCacheTags());
        $view->setArguments([
            $entities[0]->id(),
        ]);
        $build = $this->assertViewsCacheTags($view, $tags_argument, $do_assert_views_caches, $tags_argument);
        $single_entity_assertions($build, $entities[0]);
        $view->setArguments([
            $entities[0]->id(),
        ]);
        $build = $this->assertViewsCacheTagsFromStaticRenderArray($view, $tags_argument, $do_assert_views_caches);
        $single_entity_assertions($build, $entities[0]);
        // Set a different argument and ensure that the result is different.
        $tags2_argument = Cache::mergeTags($base_tags, $entities[1]->getCacheTags());
        $view->setArguments([
            $entities[1]->id(),
        ]);
        $build = $this->assertViewsCacheTagsFromStaticRenderArray($view, $tags2_argument, $do_assert_views_caches);
        $single_entity_assertions($build, $entities[1]);
        $view->destroy();
    }
    
    /**
     * Tests an entity-based view's cache tags when using the "none" cache plugin.
     */
    public function testEntityBasedViewCacheTagsWithCachePluginNone() : void {
        $view = Views::getView('entity_test_row');
        $view->getDisplay()
            ->overrideOption('cache', [
            'type' => 'none',
        ]);
        $view->save();
        $this->assertCacheTagsForEntityBasedView(FALSE);
    }
    
    /**
     * Tests an entity-based view's cache tags when using the "tag" cache plugin.
     */
    public function testEntityBasedViewCacheTagsWithCachePluginTag() : void {
        $view = Views::getView('entity_test_row');
        $view->getDisplay()
            ->overrideOption('cache', [
            'type' => 'tag',
        ]);
        $view->save();
        $this->assertCacheTagsForEntityBasedView(TRUE);
    }
    
    /**
     * Tests an entity-based view's cache tags when using the "time" cache plugin.
     */
    public function testEntityBasedViewCacheTagsWithCachePluginTime() : void {
        $view = Views::getView('entity_test_row');
        $view->getDisplay()
            ->overrideOption('cache', [
            'type' => 'time',
            'options' => [
                'results_lifespan' => 3600,
                'output_lifespan' => 3600,
            ],
        ]);
        $view->save();
        $this->assertCacheTagsForEntityBasedView(TRUE);
    }
    
    /**
     * Tests cache tags on output & result cache items for an entity-based view.
     *
     * @internal
     */
    protected function assertCacheTagsForEntityBasedView(bool $do_assert_views_caches) : void {
        $view = Views::getView('entity_test_row');
        // Empty result (no entities yet).
        $base_tags = $base_render_tags = [
            'config:views.view.entity_test_row',
            'entity_test_list',
        ];
        $this->assertViewsCacheTags($view, $base_tags, $do_assert_views_caches, $base_tags);
        $this->assertViewsCacheTagsFromStaticRenderArray($view, $base_tags, $do_assert_views_caches);
        // Non-empty result (1 entity).
        $entities[] = $entity = EntityTest::create();
        $entity->save();
        $result_tags_with_entity = Cache::mergeTags($base_tags, $entities[0]->getCacheTags());
        $render_tags_with_entity = Cache::mergeTags($base_render_tags, $entities[0]->getCacheTags());
        $render_tags_with_entity = Cache::mergeTags($render_tags_with_entity, [
            'entity_test_view',
        ]);
        $this->assertViewsCacheTags($view, $result_tags_with_entity, $do_assert_views_caches, $render_tags_with_entity);
        $this->assertViewsCacheTagsFromStaticRenderArray($view, $render_tags_with_entity, $do_assert_views_caches);
        // Paged result (more entities than the items-per-page limit).
        for ($i = 0; $i < 5; $i++) {
            $entities[] = $entity = EntityTest::create();
            $entity->save();
        }
        $new_entities_cache_tags = Cache::mergeTags($entities[1]->getCacheTags(), $entities[2]->getCacheTags());
        $new_entities_cache_tags = Cache::mergeTags($new_entities_cache_tags, $entities[3]->getCacheTags());
        $new_entities_cache_tags = Cache::mergeTags($new_entities_cache_tags, $entities[4]->getCacheTags());
        $new_entities_cache_tags = Cache::mergeTags($new_entities_cache_tags, $entities[5]->getCacheTags());
        $result_tags_page_1 = Cache::mergeTags($base_tags, $new_entities_cache_tags);
        $render_tags_page_1 = Cache::mergeTags($base_render_tags, $new_entities_cache_tags);
        $render_tags_page_1 = Cache::mergeTags($render_tags_page_1, [
            'entity_test_view',
        ]);
        $this->assertViewsCacheTags($view, $result_tags_page_1, $do_assert_views_caches, $render_tags_page_1);
        $this->assertViewsCacheTagsFromStaticRenderArray($view, $render_tags_page_1, $do_assert_views_caches);
    }
    
    /**
     * Ensure that the view renderable contains the cache contexts.
     */
    public function testBuildRenderableWithCacheContexts() : void {
        $view = View::load('test_view');
        $display =& $view->getDisplay('default');
        $display['cache_metadata']['contexts'] = [
            'views_test_cache_context',
        ];
        $executable = $view->getExecutable();
        $build = $executable->buildRenderable();
        $this->assertEquals([
            'views_test_cache_context',
        ], $build['#cache']['contexts']);
    }
    
    /**
     * Ensures that saving a view calculates the cache contexts.
     */
    public function testViewAddCacheMetadata() : void {
        $view = View::load('test_display');
        $view->save();
        $this->assertEqualsCanonicalizing([
            'languages:' . LanguageInterface::TYPE_CONTENT,
            'languages:' . LanguageInterface::TYPE_INTERFACE,
            'url.query_args',
            'user.node_grants:view',
            'user.permissions',
        ], $view->getDisplay('default')['cache_metadata']['contexts']);
    }

}