class CommentTestBase

abstract class CommentTestBase extends ViewTestBase {
    use CommentTestTrait;
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'node',
        'comment',
        'comment_test_views',
    ];
    
    /**
     * A normal user with permission to post comments (without approval).
     *
     * @var \Drupal\user\UserInterface
     */
    protected $account;
    
    /**
     * A second normal user that will author a node for $account to comment on.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $account2;
    
    /**
     * Stores a node posted by the user created as $account.
     *
     * @var \Drupal\node\NodeInterface
     */
    protected $nodeUserPosted;
    
    /**
     * Stores a node posted by the user created as $account2.
     *
     * @var \Drupal\node\NodeInterface
     */
    protected $nodeUserCommented;
    
    /**
     * Stores a comment used by the tests.
     *
     * @var \Drupal\comment\Entity\Comment
     */
    protected $comment;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp($import_test_views = TRUE, $modules = [
        'comment_test_views',
    ]) : void {
        parent::setUp($import_test_views, $modules);
        // Add two users, create a node with the user1 as author and another node
        // with user2 as author. For the second node add a comment from user1.
        $this->account = $this->drupalCreateUser([
            'skip comment approval',
        ]);
        $this->account2 = $this->drupalCreateUser();
        $this->drupalLogin($this->account);
        $this->drupalCreateContentType([
            'type' => 'page',
            'name' => t('Basic page'),
        ]);
        $this->addDefaultCommentField('node', 'page');
        $this->nodeUserPosted = $this->drupalCreateNode();
        $this->nodeUserCommented = $this->drupalCreateNode([
            'uid' => $this->account2
                ->id(),
        ]);
        $comment = [
            'uid' => $this->loggedInUser
                ->id(),
            'entity_id' => $this->nodeUserCommented
                ->id(),
            'entity_type' => 'node',
            'field_name' => 'comment',
            'subject' => 'How much wood would a woodchuck chuck',
            'cid' => '',
            'pid' => '',
            'mail' => 'someone@example.com',
        ];
        $this->comment = Comment::create($comment);
        $this->comment
            ->save();
    }

}