class DefaultViewRecentCommentsTest

class DefaultViewRecentCommentsTest extends ViewTestBase {
    use CommentTestTrait;
    
    /**
     * Modules to install.
     *
     * @var array
     */
    protected static $modules = [
        'node',
        'comment',
        'block',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Number of results for the Default display.
     *
     * @var int
     */
    protected $defaultDisplayResults = 5;
    
    /**
     * Number of results for the Block display.
     *
     * @var int
     */
    protected $blockDisplayResults = 5;
    
    /**
     * Number of results for the Page display.
     *
     * @var int
     */
    protected $pageDisplayResults = 5;
    
    /**
     * Will hold the comments created for testing.
     *
     * @var array
     */
    protected $commentsCreated = [];
    
    /**
     * Contains the node object used for comments of this test.
     *
     * @var \Drupal\node\NodeInterface
     */
    public $node;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp($import_test_views = TRUE, $modules = []) : void {
        parent::setUp($import_test_views, $modules);
        // Create a new content type
        $content_type = $this->drupalCreateContentType();
        // Add a node of the new content type.
        $node_data = [
            'type' => $content_type->id(),
        ];
        $this->addDefaultCommentField('node', $content_type->id());
        $this->node = $this->drupalCreateNode($node_data);
        // Force a flush of the in-memory storage.
        $this->container
            ->get('views.views_data')
            ->clear();
        // Create some comments and attach them to the created node.
        for ($i = 0; $i < $this->defaultDisplayResults; $i++) {
            
            /** @var \Drupal\comment\CommentInterface $comment */
            $comment = Comment::create([
                'status' => CommentInterface::PUBLISHED,
                'field_name' => 'comment',
                'entity_type' => 'node',
                'entity_id' => $this->node
                    ->id(),
            ]);
            $comment->setOwnerId(0);
            $comment->setSubject('Test comment ' . $i);
            $comment->comment_body->value = 'Test body ' . $i;
            $comment->comment_body->format = 'full_html';
            // Ensure comments are sorted in ascending order.
            $time = REQUEST_TIME + ($this->defaultDisplayResults - $i);
            $comment->setCreatedTime($time);
            $comment->changed->value = $time;
            $comment->save();
        }
        // Store all the nodes just created to access their properties on the tests.
        $this->commentsCreated = Comment::loadMultiple();
        // Sort created comments in descending order.
        ksort($this->commentsCreated, SORT_NUMERIC);
    }
    
    /**
     * Tests the block defined by the comments_recent view.
     */
    public function testBlockDisplay() {
        $user = $this->drupalCreateUser([
            'access comments',
        ]);
        $this->drupalLogin($user);
        $view = Views::getView('comments_recent');
        $view->setDisplay('block_1');
        $this->executeView($view);
        $map = [
            'subject' => 'subject',
            'cid' => 'cid',
            'comment_field_data_created' => 'created',
        ];
        $expected_result = [];
        foreach (array_values($this->commentsCreated) as $key => $comment) {
            $expected_result[$key]['subject'] = $comment->getSubject();
            $expected_result[$key]['cid'] = $comment->id();
            $expected_result[$key]['created'] = $comment->getCreatedTime();
        }
        $this->assertIdenticalResultset($view, $expected_result, $map);
        // Check the number of results given by the display is the expected.
        $this->assertCount($this->blockDisplayResults, $view->result, new FormattableMarkup('There are exactly @results comments. Expected @expected', [
            '@results' => count($view->result),
            '@expected' => $this->blockDisplayResults,
        ]));
    }

}