CommentPagerTest::testCommentPaging

Confirm comment paging works correctly with flat and threaded comments.

File

modules/comment/comment.test, line 1224

Tests for comment.module.

Code

function testCommentPaging() {
  $this->drupalLogin($this->admin_user);

  // Set comment variables.
  $this->setCommentForm(TRUE);
  $this->setCommentSubject(TRUE);
  $this->setCommentPreview(DRUPAL_DISABLED);

  // Create a node and three comments.
  $node = $this->drupalCreateNode(array('type' => 'article', 'promote' => 1));
  $comments = array();
  $comments[] = $this->postComment($node, $this->randomName(), $this->randomName(), TRUE);
  $comments[] = $this->postComment($node, $this->randomName(), $this->randomName(), TRUE);
  $comments[] = $this->postComment($node, $this->randomName(), $this->randomName(), TRUE);

  $this->setCommentSettings('comment_default_mode', COMMENT_MODE_FLAT, t('Comment paging changed.'));

  // Set comments to one per page so that we are able to test paging without
  // needing to insert large numbers of comments.
  $this->setCommentsPerPage(1);

  // Check the first page of the node, and confirm the correct comments are
  // shown.
  $this->drupalGet('node/' . $node->nid);
  $this->assertRaw(t('next'), t('Paging links found.'));
  $this->assertTrue($this->commentExists($comments[0]), t('Comment 1 appears on page 1.'));
  $this->assertFalse($this->commentExists($comments[1]), t('Comment 2 does not appear on page 1.'));
  $this->assertFalse($this->commentExists($comments[2]), t('Comment 3 does not appear on page 1.'));

  // Check the second page.
  $this->drupalGet('node/' . $node->nid, array('query' => array('page' => 1)));
  $this->assertTrue($this->commentExists($comments[1]), t('Comment 2 appears on page 2.'));
  $this->assertFalse($this->commentExists($comments[0]), t('Comment 1 does not appear on page 2.'));
  $this->assertFalse($this->commentExists($comments[2]), t('Comment 3 does not appear on page 2.'));

  // Check the third page.
  $this->drupalGet('node/' . $node->nid, array('query' => array('page' => 2)));
  $this->assertTrue($this->commentExists($comments[2]), t('Comment 3 appears on page 3.'));
  $this->assertFalse($this->commentExists($comments[0]), t('Comment 1 does not appear on page 3.'));
  $this->assertFalse($this->commentExists($comments[1]), t('Comment 2 does not appear on page 3.'));

  // Post a reply to the oldest comment and test again.
  $replies = array();
  $oldest_comment = reset($comments);
  $this->drupalGet('comment/reply/' . $node->nid . '/' . $oldest_comment->id);
  $reply = $this->postComment(NULL, $this->randomName(), $this->randomName(), TRUE);

  $this->setCommentsPerPage(2);
  // We are still in flat view - the replies should not be on the first page,
  // even though they are replies to the oldest comment.
  $this->drupalGet('node/' . $node->nid, array('query' => array('page' => 0)));
  $this->assertFalse($this->commentExists($reply, TRUE), t('In flat mode, reply does not appear on page 1.'));

  // If we switch to threaded mode, the replies on the oldest comment
  // should be bumped to the first page and comment 6 should be bumped
  // to the second page.
  $this->setCommentSettings('comment_default_mode', COMMENT_MODE_THREADED, t('Switched to threaded mode.'));
  $this->drupalGet('node/' . $node->nid, array('query' => array('page' => 0)));
  $this->assertTrue($this->commentExists($reply, TRUE), t('In threaded mode, reply appears on page 1.'));
  $this->assertFalse($this->commentExists($comments[1]), t('In threaded mode, comment 2 has been bumped off of page 1.'));

  // If (# replies > # comments per page) in threaded expanded view,
  // the overage should be bumped.
  $reply2 = $this->postComment(NULL, $this->randomName(), $this->randomName(), TRUE);
  $this->drupalGet('node/' . $node->nid, array('query' => array('page' => 0)));
  $this->assertFalse($this->commentExists($reply2, TRUE), t('In threaded mode where # replies > # comments per page, the newest reply does not appear on page 1.'));

  $this->drupalLogout();
}