--- /dev/null
+<?php
+
+namespace Drupal\Tests\comment\Functional\Rest;
+
+use Drupal\comment\Entity\CommentType;
+use Drupal\Tests\rest\Functional\EntityResource\EntityResourceTestBase;
+
+/**
+ * ResourceTestBase for CommentType entity.
+ */
+abstract class CommentTypeResourceTestBase extends EntityResourceTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ public static $modules = ['node', 'comment'];
+
+ /**
+ * {@inheritdoc}
+ */
+ protected static $entityTypeId = 'comment_type';
+
+ /**
+ * The CommentType entity.
+ *
+ * @var \Drupal\comment\CommentTypeInterface
+ */
+ protected $entity;
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setUpAuthorization($method) {
+ $this->grantPermissionsToTestedRole(['administer comment types']);
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function createEntity() {
+ // Create a "Camelids" comment type.
+ $camelids = CommentType::create([
+ 'id' => 'camelids',
+ 'label' => 'Camelids',
+ 'description' => 'Camelids are large, strictly herbivorous animals with slender necks and long legs.',
+ 'target_entity_type_id' => 'node',
+ ]);
+
+ $camelids->save();
+
+ return $camelids;
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function getExpectedNormalizedEntity() {
+ return [
+ 'dependencies' => [],
+ 'description' => 'Camelids are large, strictly herbivorous animals with slender necks and long legs.',
+ 'id' => 'camelids',
+ 'label' => 'Camelids',
+ 'langcode' => 'en',
+ 'status' => TRUE,
+ 'target_entity_type_id' => 'node',
+ 'uuid' => $this->entity->uuid(),
+ ];
+ }
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function getNormalizedPostEntity() {
+ // @todo Update in https://www.drupal.org/node/2300677.
+ }
+
+}