diff --git a/backend/api/tests/api/test_document.py b/backend/api/tests/api/test_document.py
index a0fd5b52..252010fc 100644
--- a/backend/api/tests/api/test_document.py
+++ b/backend/api/tests/api/test_document.py
@@ -12,7 +12,7 @@ class TestExampleListAPI(CRUDMixin):
     def setUp(self):
         self.project = prepare_project(task=DOCUMENT_CLASSIFICATION)
         self.non_member = make_user()
-        make_doc(self.project.item)
+        self.example = make_doc(self.project.item)
         self.data = {'text': 'example'}
         self.url = reverse(viewname='example_list', args=[self.project.item.id])
 
@@ -41,6 +41,14 @@ class TestExampleListAPI(CRUDMixin):
     def test_denies_unauthenticated_user_to_create_doc(self):
         self.assert_create(expected=status.HTTP_403_FORBIDDEN)
 
+    def test_is_confirmed(self):
+        make_example_state(self.example, self.project.users[0])
+        response = self.assert_fetch(self.project.users[0], status.HTTP_200_OK)
+        self.assertTrue(response.data['results'][0]['is_confirmed'])
+
+    def test_is_not_confirmed(self):
+        response = self.assert_fetch(self.project.users[0], status.HTTP_200_OK)
+        self.assertFalse(response.data['results'][0]['is_confirmed'])
 
 class TestExampleListFilter(CRUDMixin):
 
diff --git a/backend/api/tests/test_serializers.py b/backend/api/tests/test_serializers.py
deleted file mode 100644
index 5219f5de..00000000
--- a/backend/api/tests/test_serializers.py
+++ /dev/null
@@ -1,26 +0,0 @@
-from rest_framework.test import APITestCase
-
-from ..serializers import ExampleSerializer
-from .api.utils import make_doc, make_example_state, prepare_project
-
-
-class TestExampleStateSerializer(APITestCase):
-
-    def setUp(self):
-        self.project = prepare_project(task='DocumentClassification')
-        self.example = make_doc(self.project.item)
-
-    def test_in_is_confirmed(self):
-        serializer = ExampleSerializer(instance=self.example)
-        self.assertIn('is_confirmed', serializer.data)
-
-    def test_is_not_confirmed(self):
-        serializer = ExampleSerializer(instance=self.example)
-        is_confirmed = serializer.data['is_confirmed']
-        self.assertFalse(is_confirmed)
-
-    def test_is_confirmed(self):
-        make_example_state(self.example, self.project.users[0])
-        serializer = ExampleSerializer(instance=self.example)
-        is_confirmed = serializer.data['is_confirmed']
-        self.assertTrue(is_confirmed)