class NodeAccessPagerTest

class NodeAccessPagerTest extends BrowserTestBase {
    use CommentTestTrait;
    
    /**
     * An user.
     *
     * @var \Drupal\user\Entity\User
     */
    protected $webUser;
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'node_access_test',
        'comment',
        'forum',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        node_access_rebuild();
        $this->drupalCreateContentType([
            'type' => 'page',
            'name' => 'Basic page',
        ]);
        $this->addDefaultCommentField('node', 'page');
        $this->webUser = $this->drupalCreateUser([
            'access content',
            'access comments',
            'node test view',
        ]);
    }
    
    /**
     * Tests the comment pager for nodes with multiple grants per realm.
     */
    public function testCommentPager() {
        // Create a node.
        $node = $this->drupalCreateNode();
        // Create 60 comments.
        for ($i = 0; $i < 60; $i++) {
            $comment = Comment::create([
                'entity_id' => $node->id(),
                'entity_type' => 'node',
                'field_name' => 'comment',
                'subject' => $this->randomMachineName(),
                'comment_body' => [
                    [
                        'value' => $this->randomMachineName(),
                    ],
                ],
                'status' => CommentInterface::PUBLISHED,
            ]);
            $comment->save();
        }
        $this->drupalLogin($this->webUser);
        // View the node page. With the default 50 comments per page there should
        // be two pages (0, 1) but no third (2) page.
        $this->drupalGet('node/' . $node->id());
        $this->assertSession()
            ->pageTextContains($node->label());
        $this->assertSession()
            ->pageTextContains('Comments');
        $this->assertSession()
            ->responseContains('page=1');
        $this->assertSession()
            ->responseNotContains('page=2');
    }
    
    /**
     * Tests the forum node pager for nodes with multiple grants per realm.
     */
    public function testForumPager() {
        // Look up the forums vocabulary ID.
        $vid = $this->config('forum.settings')
            ->get('vocabulary');
        $this->assertNotEmpty($vid, 'Forum navigation vocabulary ID is set.');
        // Look up the general discussion term.
        $tree = \Drupal::entityTypeManager()->getStorage('taxonomy_term')
            ->loadTree($vid, 0, 1);
        $tid = reset($tree)->tid;
        $this->assertNotEmpty($tid, 'General discussion term is found in the forum vocabulary.');
        // Create 30 nodes.
        for ($i = 0; $i < 30; $i++) {
            $this->drupalCreateNode([
                'nid' => NULL,
                'type' => 'forum',
                'taxonomy_forums' => [
                    [
                        'target_id' => $tid,
                    ],
                ],
            ]);
        }
        // View the general discussion forum page. With the default 25 nodes per
        // page there should be two pages for 30 nodes, no more.
        $this->drupalLogin($this->webUser);
        $this->drupalGet('forum/' . $tid);
        $this->assertSession()
            ->responseContains('page=1');
        $this->assertSession()
            ->responseNotContains('page=2');
    }

}