verifyForumView example

$response2 = ($admin) ? 200 : 403;

    // View forum help node.     $this->drupalGet('admin/help/forum');
    $this->assertSession()->statusCodeEquals($response2);
    if ($response2 == 200) {
      $this->assertSession()->titleEquals('Forum | Drupal');
      $this->assertSession()->pageTextContains('Forum');
    }

    // View forum container page.     $this->verifyForumView($this->forumContainer);
    // View forum page.     $this->verifyForumView($this->forum, $this->forumContainer);
    // View root forum page.     $this->verifyForumView($this->rootForum);

    // View forum node.     $this->drupalGet('node/' . $node->id());
    $this->assertSession()->statusCodeEquals(200);
    $this->assertSession()->titleEquals($node->label() . ' | Drupal');
    $breadcrumb_build = [
      Link::createFromRoute('Home', '<front>'),