diff --git a/backend/api/tests/test_tasks.py b/backend/api/tests/test_tasks.py
index a0d460c0..40011bd3 100644
--- a/backend/api/tests/test_tasks.py
+++ b/backend/api/tests/test_tasks.py
@@ -7,10 +7,12 @@ from ..tasks import injest_data
 from .api.utils import prepare_project
 
 
-class TestIngestClassificationData(TestCase):
+class TestIngestData(TestCase):
+    task = 'Any'
+    annotation_class = Category
 
     def setUp(self):
-        self.project = prepare_project(task='DocumentClassification')
+        self.project = prepare_project(self.task)
         self.user = self.project.users[0]
         self.data_path = pathlib.Path(__file__).parent / 'data'
 
@@ -26,7 +28,12 @@ class TestIngestClassificationData(TestCase):
         injest_data(self.user.id, self.project.item.id, filenames, file_format, **kwargs)
         self.assertEqual(Example.objects.count(), expected_example)
         self.assertEqual(Label.objects.count(), expected_label)
-        self.assertEqual(Category.objects.count(), expected_annotation)
+        self.assertEqual(self.annotation_class.objects.count(), expected_annotation)
+
+
+class TestIngestClassificationData(TestIngestData):
+    task = 'DocumentClassification'
+    annotation_class = Category
 
     def test_jsonl(self):
         filename = 'text_classification/example.jsonl'
@@ -65,26 +72,9 @@ class TestIngestClassificationData(TestCase):
         self.assert_count(filename, file_format, expected_example=3, expected_label=0, expected_annotation=0)
 
 
-class TestIngestSequenceLabelingData(TestCase):
-
-    def setUp(self):
-        self.project = prepare_project(task='SequenceLabeling')
-        self.user = self.project.users[0]
-        self.data_path = pathlib.Path(__file__).parent / 'data'
-
-    def assert_count(self,
-                     filename,
-                     file_format,
-                     kwargs=None,
-                     expected_example=0,
-                     expected_label=0,
-                     expected_annotation=0):
-        filenames = [str(self.data_path / filename)]
-        kwargs = kwargs or {}
-        injest_data(self.user.id, self.project.item.id, filenames, file_format, **kwargs)
-        self.assertEqual(Example.objects.count(), expected_example)
-        self.assertEqual(Label.objects.count(), expected_label)
-        self.assertEqual(Span.objects.count(), expected_annotation)
+class TestIngestSequenceLabelingData(TestIngestData):
+    task = 'SequenceLabeling'
+    annotation_class = Span
 
     def test_jsonl(self):
         filename = 'sequence_labeling/example.jsonl'