Clean up Vision unit tests.

vision/unit_tests/test__gax.py

@@ -19,12 +19,14 @@
 
 def _make_credentials():
     import google.auth.credentials
+
     return mock.Mock(spec=google.auth.credentials.Credentials)
 
 
 class TestGAXClient(unittest.TestCase):
     def _get_target_class(self):
         from google.cloud.vision._gax import _GAPICVisionAPI
+
         return _GAPICVisionAPI
 
     def _make_one(self, *args, **kwargs):
@@ -40,6 +42,7 @@ def test_ctor(self):
     def test_gapic_credentials(self):
         from google.cloud.gapic.vision.v1.image_annotator_client import (
             ImageAnnotatorClient)
+
         from google.cloud.vision import Client
 
         # Mock the GAPIC ImageAnnotatorClient, whose arguments we
@@ -214,8 +217,8 @@ def test_annotate_with_pb_requests_results(self):
         responses = gax_api.annotate(requests_pb=[request])
 
         self.assertEqual(len(responses), 2)
-        self.assertIsInstance(responses[0], Annotations)
-        self.assertIsInstance(responses[1], Annotations)
+        for annotation in responses:
+            self.assertIsInstance(annotation, Annotations)
         gax_api._annotator_client.batch_annotate_images.assert_called()
 
 
@@ -239,6 +242,7 @@ def test__to_gapic_feature(self):
 class Test__to_gapic_image(unittest.TestCase):
     def _call_fut(self, image):
         from google.cloud.vision._gax import _to_gapic_image
+
         return _to_gapic_image(image)
 
     def test__to_gapic_image_content(self):

vision/unit_tests/test__http.py

@@ -28,6 +28,7 @@ class TestConnection(unittest.TestCase):
     @staticmethod
     def _get_target_class():
         from google.cloud.vision._http import Connection
+
         return Connection
 
     def _make_one(self, *args, **kw):
@@ -72,6 +73,7 @@ def test_extra_headers(self):
 class Test_HTTPVisionAPI(unittest.TestCase):
     def _get_target_class(self):
         from google.cloud.vision._http import _HTTPVisionAPI
+
         return _HTTPVisionAPI
 
     def _make_one(self, *args, **kwargs):
@@ -172,6 +174,7 @@ class TestVisionRequest(unittest.TestCase):
     @staticmethod
     def _get_target_function():
         from google.cloud.vision._http import _make_request
+
         return _make_request
 
     def _call_fut(self, *args, **kw):

vision/unit_tests/test_annotations.py

@@ -128,6 +128,7 @@ def test_it(self):
 class Test__make_faces_from_pb(unittest.TestCase):
     def _call_fut(self, annotations):
         from google.cloud.vision.annotations import _make_faces_from_pb
+
         return _make_faces_from_pb(annotations)
 
     def test_it(self):
@@ -144,6 +145,7 @@ class Test__make_image_properties_from_pb(unittest.TestCase):
     def _call_fut(self, annotations):
         from google.cloud.vision.annotations import (
             _make_image_properties_from_pb)
+
         return _make_image_properties_from_pb(annotations)
 
     def test_it(self):

vision/unit_tests/test_batch.py

@@ -21,6 +21,7 @@
 
 def _make_credentials():
     import google.auth.credentials
+
     return mock.Mock(spec=google.auth.credentials.Credentials)