test: backend - user serializer

user serializer

backend/user_api/tests.py

@@ -4,6 +4,8 @@
 
 from user_api.models import User
 
+from user_api.serializers import UserSerializer
+
 from user_api.views import v1 as v1_views
 
 
@@ -48,3 +50,39 @@ def test_user_registration_url_resolves(self):
     def test_user_login_url_resolves(self):
         url = reverse('user-login')
         self.assertEqual(resolve(url).func.view_class, v1_views.UserLoginView)
+
+
+class UserSerializerTestCase(TestCase):
+    def setUp(self):
+        self.user_attributes = {
+            'email': 'testuser@example.com',
+            'username': 'testuser',
+            'name': 'Test User',
+            'password': 'testpassword123'
+        }
+        self.serializer_data = {
+            'email': 'testuser@example.com',
+            'username': 'testuser',
+            'name': 'Test User',
+            'password': 'testpassword123'
+        }
+        self.user = User.objects.create(**self.user_attributes)
+        self.serializer = UserSerializer(instance=self.user)
+
+    def test_contains_expected_fields(self):
+        data = self.serializer.data
+        self.assertEqual(set(data.keys()), set(
+            ['id', 'email', 'name', 'username']))
+
+    def test_email_field_content(self):
+        data = self.serializer.data
+        self.assertEqual(data['email'], self.user_attributes['email'])
+
+    def test_create_user(self):
+        serializer = UserSerializer(data=self.serializer_data)
+        self.assertTrue(serializer.is_valid())
+        user = serializer.save()
+        self.assertEqual(user.email, self.serializer_data['email'])
+        self.assertEqual(user.username, self.serializer_data['username'])
+        self.assertEqual(user.name, self.serializer_data['name'])
+        self.assertTrue(user.check_password(self.serializer_data['password']))