--- /dev/null
+<?php
+
+namespace Drupal\Tests\comment\Functional;
+
+use Drupal\comment\Plugin\Field\FieldType\CommentItemInterface;
+use Drupal\Core\Language\LanguageInterface;
+use Drupal\comment\CommentInterface;
+use Drupal\user\RoleInterface;
+use Drupal\comment\Entity\Comment;
+
+/**
+ * Basic comment links tests to ensure markup present.
+ *
+ * @group comment
+ */
+class CommentLinksTest extends CommentTestBase {
+
+ /**
+ * Comment being tested.
+ *
+ * @var \Drupal\comment\CommentInterface
+ */
+ protected $comment;
+
+ /**
+ * Seen comments, array of comment IDs.
+ *
+ * @var array
+ */
+ protected $seen = [];
+
+ /**
+ * Use the main node listing to test rendering on teasers.
+ *
+ * @var array
+ *
+ * @todo Remove this dependency.
+ */
+ public static $modules = ['views'];
+
+ /**
+ * Tests that comment links are output and can be hidden.
+ */
+ public function testCommentLinks() {
+ // Bartik theme alters comment links, so use a different theme.
+ \Drupal::service('theme_handler')->install(['stark']);
+ $this->config('system.theme')
+ ->set('default', 'stark')
+ ->save();
+
+ // Remove additional user permissions from $this->webUser added by setUp(),
+ // since this test is limited to anonymous and authenticated roles only.
+ $roles = $this->webUser->getRoles();
+ entity_delete_multiple('user_role', [reset($roles)]);
+
+ // Create a comment via CRUD API functionality, since
+ // $this->postComment() relies on actual user permissions.
+ $comment = Comment::create([
+ 'cid' => NULL,
+ 'entity_id' => $this->node->id(),
+ 'entity_type' => 'node',
+ 'field_name' => 'comment',
+ 'pid' => 0,
+ 'uid' => 0,
+ 'status' => CommentInterface::PUBLISHED,
+ 'subject' => $this->randomMachineName(),
+ 'hostname' => '127.0.0.1',
+ 'langcode' => LanguageInterface::LANGCODE_NOT_SPECIFIED,
+ 'comment_body' => [['value' => $this->randomMachineName()]],
+ ]);
+ $comment->save();
+ $this->comment = $comment;
+
+ // Change comment settings.
+ $this->setCommentSettings('form_location', CommentItemInterface::FORM_BELOW, 'Set comment form location');
+ $this->setCommentAnonymous(TRUE);
+ $this->node->comment = CommentItemInterface::OPEN;
+ $this->node->save();
+
+ // Change user permissions.
+ $perms = [
+ 'access comments' => 1,
+ 'post comments' => 1,
+ 'skip comment approval' => 1,
+ 'edit own comments' => 1,
+ ];
+ user_role_change_permissions(RoleInterface::ANONYMOUS_ID, $perms);
+
+ $nid = $this->node->id();
+
+ // Assert basic link is output, actual functionality is unit-tested in
+ // \Drupal\comment\Tests\CommentLinkBuilderTest.
+ foreach (['node', "node/$nid"] as $path) {
+ $this->drupalGet($path);
+
+ // In teaser view, a link containing the comment count is always
+ // expected.
+ if ($path == 'node') {
+ $this->assertLink(t('1 comment'));
+ }
+ $this->assertLink('Add new comment');
+ }
+
+ // Change weight to make links go before comment body.
+ entity_get_display('comment', 'comment', 'default')
+ ->setComponent('links', ['weight' => -100])
+ ->save();
+ $this->drupalGet($this->node->urlInfo());
+ $element = $this->cssSelect('article.js-comment > div');
+ // Get last child element.
+ $element = end($element);
+ $this->assertIdentical($element->getTagName(), 'div', 'Last element is comment body.');
+
+ // Change weight to make links go after comment body.
+ entity_get_display('comment', 'comment', 'default')
+ ->setComponent('links', ['weight' => 100])
+ ->save();
+ $this->drupalGet($this->node->urlInfo());
+ $element = $this->cssSelect('article.js-comment > div');
+ // Get last child element.
+ $element = end($element);
+ $this->assertNotEmpty($element->find('css', 'ul.links'), 'Last element is comment links.');
+
+ // Make sure we can hide node links.
+ entity_get_display('node', $this->node->bundle(), 'default')
+ ->removeComponent('links')
+ ->save();
+ $this->drupalGet($this->node->urlInfo());
+ $this->assertNoLink('1 comment');
+ $this->assertNoLink('Add new comment');
+
+ // Visit the full node, make sure there are links for the comment.
+ $this->drupalGet('node/' . $this->node->id());
+ $this->assertText($comment->getSubject());
+ $this->assertLink('Reply');
+
+ // Make sure we can hide comment links.
+ entity_get_display('comment', 'comment', 'default')
+ ->removeComponent('links')
+ ->save();
+ $this->drupalGet('node/' . $this->node->id());
+ $this->assertText($comment->getSubject());
+ $this->assertNoLink('Reply');
+ }
+
+}