diff --git a/tests/AbstractApiTest.php b/tests/AbstractApiTest.php
index 037f171360..35d92fd7d9 100644
--- a/tests/AbstractApiTest.php
+++ b/tests/AbstractApiTest.php
@@ -3,6 +3,7 @@ namespace Chamilo\Tests;
 
 use ApiPlatform\Core\Bridge\Symfony\Bundle\Test\ApiTestCase;
 use ApiPlatform\Core\Bridge\Symfony\Bundle\Test\Client;
+use Chamilo\CoreBundle\Entity\User;
 use Hautelook\AliceBundle\PhpUnit\RefreshDatabaseTrait;
 
 abstract class AbstractApiTest extends ApiTestCase
@@ -49,6 +50,15 @@ abstract class AbstractApiTest extends ApiTestCase
         return static::createClient([], ['headers' => ['authorization' => 'Bearer '.$token]]);
     }
 
+    public function getUserTokenFromUser(User $user)
+    {
+        return $this->getUserToken([
+                'username' => $user->getUsername(),
+                'password' => $user->getUsername(),
+            ], true
+        );
+    }
+
     /**
      * Use credentials with token, by default it returns the admin token.
      */
diff --git a/tests/CoreBundle/Tool/ToolChainTest.php b/tests/CoreBundle/Tool/ToolChainTest.php
index 6cc2bfe848..94505d6757 100644
--- a/tests/CoreBundle/Tool/ToolChainTest.php
+++ b/tests/CoreBundle/Tool/ToolChainTest.php
@@ -14,8 +14,10 @@ use Chamilo\CoreBundle\Entity\Tool;
 use Chamilo\CoreBundle\Tool\AbstractTool;
 use Chamilo\CoreBundle\Tool\GlobalTool;
 use Chamilo\CoreBundle\Tool\ToolChain;
+use Chamilo\CourseBundle\Entity\CTool;
 use Chamilo\Tests\AbstractApiTest;
 use Chamilo\Tests\ChamiloTestTrait;
+use Doctrine\Common\Collections\ArrayCollection;
 
 class ToolChainTest extends AbstractApiTest
 {
@@ -125,7 +127,7 @@ class ToolChainTest extends AbstractApiTest
 
         $tools = $toolChain->getTools();
 
-        $this->assertSame($countBefore, \count($tools));
+        $this->assertCount($countBefore, $tools);
 
         $em = $this->getEntityManager();
 
@@ -161,5 +163,21 @@ class ToolChainTest extends AbstractApiTest
 
         $items = $resourceTypeRepo->findAll();
         $this->assertNotEmpty($items);
+
+        $resourceType = (new ResourceType())
+            ->setName('test')
+        ;
+        $this->assertHasNoEntityViolations($resourceType);
+        $em->persist($resourceType);
+        $collection = new ArrayCollection();
+        $collection->add($resourceType);
+
+        $tool = (new Tool())
+            ->setName('lasagna')
+            ->setResourceTypes($collection)
+        ;
+        $this->assertHasNoEntityViolations($tool);
+        $em->persist($tool);
+        $em->flush();
     }
 }
diff --git a/tests/CourseBundle/Repository/CToolRepositoryTest.php b/tests/CourseBundle/Repository/CToolRepositoryTest.php
new file mode 100644
index 0000000000..13d61e3af4
--- /dev/null
+++ b/tests/CourseBundle/Repository/CToolRepositoryTest.php
@@ -0,0 +1,81 @@
+<?php
+
+declare(strict_types=1);
+
+/* For licensing terms, see /license.txt */
+
+namespace Chamilo\Tests\CourseBundle\Repository;
+
+use Chamilo\CoreBundle\Entity\ResourceType;
+use Chamilo\CoreBundle\Entity\Tool;
+use Chamilo\CoreBundle\Repository\Node\CourseRepository;
+use Chamilo\CoreBundle\Tool\HandlerCollection;
+use Chamilo\CoreBundle\Tool\ToolChain;
+use Chamilo\CourseBundle\Entity\CAnnouncement;
+use Chamilo\CourseBundle\Entity\CAnnouncementAttachment;
+use Chamilo\CourseBundle\Entity\CCalendarEvent;
+use Chamilo\CourseBundle\Entity\CTool;
+use Chamilo\CourseBundle\Entity\CToolIntro;
+use Chamilo\CourseBundle\Repository\CAnnouncementAttachmentRepository;
+use Chamilo\CourseBundle\Repository\CAnnouncementRepository;
+use Chamilo\CourseBundle\Repository\CToolIntroRepository;
+use Chamilo\CourseBundle\Repository\CToolRepository;
+use Chamilo\Tests\AbstractApiTest;
+use Chamilo\Tests\ChamiloTestTrait;
+use Doctrine\Common\Collections\ArrayCollection;
+
+class CToolRepositoryTest extends AbstractApiTest
+{
+    use ChamiloTestTrait;
+
+    public function testDelete(): void
+    {
+        self::bootKernel();
+
+        $repo = self::getContainer()->get(CToolRepository::class);
+        $this->assertSame(0, $repo->count([]));
+
+        $course = $this->createCourse('new');
+        $defaultCount = $repo->count([]);
+
+        /** @var CTool $courseTool */
+        $courseTool = $course->getTools()->first();
+        $repo->delete($courseTool);
+
+        $this->assertSame($defaultCount - 1, $repo->count([]));
+    }
+
+    public function testGetTools(): void
+    {
+        $token = $this->getUserToken([]);
+        $response = $this->createClientWithCredentials($token)->request('GET', '/api/c_tools');
+        $this->assertResponseIsSuccessful();
+
+        // Asserts that the returned content type is JSON-LD (the default)
+        $this->assertResponseHeaderSame('content-type', 'application/ld+json; charset=utf-8');
+
+        // Asserts that the returned JSON is a superset of this one
+        $this->assertJsonContains([
+            '@context' => '/api/contexts/CTool',
+            '@id' => '/api/c_tools',
+            '@type' => 'hydra:Collection',
+            'hydra:totalItems' => 0,
+        ]);
+
+        $this->assertCount(0, $response->toArray()['hydra:member']);
+        $this->assertMatchesResourceCollectionJsonSchema(CTool::class);
+
+        $this->createCourse('new');
+        $response = $this->createClientWithCredentials($token)->request('GET', '/api/c_tools');
+        $this->assertResponseIsSuccessful();
+
+        $repo = self::getContainer()->get(CToolRepository::class);
+        $defaultCount = $repo->count([]);
+        $this->assertCount($defaultCount, $response->toArray()['hydra:member']);
+
+        $test = $this->createUser('student');
+        $studentToken = $this->getUserTokenFromUser($test);
+        $this->createClientWithCredentials($studentToken)->request('GET', '/api/c_tools');
+        $this->assertResponseStatusCodeSame(403);
+    }
+}