diff --git a/google/cloud/servicecontrol_v1/services/quota_controller/transports/base.py b/google/cloud/servicecontrol_v1/services/quota_controller/transports/base.py
index f4a8645..8099043 100644
--- a/google/cloud/servicecontrol_v1/services/quota_controller/transports/base.py
+++ b/google/cloud/servicecontrol_v1/services/quota_controller/transports/base.py
@@ -104,7 +104,6 @@ def __init__(
             credentials, _ = google.auth.load_credentials_from_file(
                 credentials_file, **scopes_kwargs, quota_project_id=quota_project_id
             )
-
         elif credentials is None:
             credentials, _ = google.auth.default(
                 **scopes_kwargs, quota_project_id=quota_project_id
diff --git a/google/cloud/servicecontrol_v1/services/service_controller/transports/base.py b/google/cloud/servicecontrol_v1/services/service_controller/transports/base.py
index d90451c..bb78aa3 100644
--- a/google/cloud/servicecontrol_v1/services/service_controller/transports/base.py
+++ b/google/cloud/servicecontrol_v1/services/service_controller/transports/base.py
@@ -104,7 +104,6 @@ def __init__(
             credentials, _ = google.auth.load_credentials_from_file(
                 credentials_file, **scopes_kwargs, quota_project_id=quota_project_id
             )
-
         elif credentials is None:
             credentials, _ = google.auth.default(
                 **scopes_kwargs, quota_project_id=quota_project_id
diff --git a/tests/unit/gapic/servicecontrol_v1/test_quota_controller.py b/tests/unit/gapic/servicecontrol_v1/test_quota_controller.py
index 3022024..28f3dc3 100644
--- a/tests/unit/gapic/servicecontrol_v1/test_quota_controller.py
+++ b/tests/unit/gapic/servicecontrol_v1/test_quota_controller.py
@@ -254,20 +254,20 @@ def test_quota_controller_client_client_options(
     # unsupported value.
     with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "Unsupported"}):
         with pytest.raises(MutualTLSChannelError):
-            client = client_class()
+            client = client_class(transport=transport_name)
 
     # Check the case GOOGLE_API_USE_CLIENT_CERTIFICATE has unsupported value.
     with mock.patch.dict(
         os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "Unsupported"}
     ):
         with pytest.raises(ValueError):
-            client = client_class()
+            client = client_class(transport=transport_name)
 
     # Check the case quota_project_id is provided
     options = client_options.ClientOptions(quota_project_id="octopus")
     with mock.patch.object(transport_class, "__init__") as patched:
         patched.return_value = None
-        client = client_class(transport=transport_name, client_options=options)
+        client = client_class(client_options=options, transport=transport_name)
         patched.assert_called_once_with(
             credentials=None,
             credentials_file=None,
@@ -336,7 +336,7 @@ def test_quota_controller_client_mtls_env_auto(
         )
         with mock.patch.object(transport_class, "__init__") as patched:
             patched.return_value = None
-            client = client_class(transport=transport_name, client_options=options)
+            client = client_class(client_options=options, transport=transport_name)
 
             if use_client_cert_env == "false":
                 expected_client_cert_source = None
@@ -431,7 +431,7 @@ def test_quota_controller_client_client_options_scopes(
     options = client_options.ClientOptions(scopes=["1", "2"],)
     with mock.patch.object(transport_class, "__init__") as patched:
         patched.return_value = None
-        client = client_class(transport=transport_name, client_options=options)
+        client = client_class(client_options=options, transport=transport_name)
         patched.assert_called_once_with(
             credentials=None,
             credentials_file=None,
@@ -462,7 +462,7 @@ def test_quota_controller_client_client_options_credentials_file(
     options = client_options.ClientOptions(credentials_file="credentials.json")
     with mock.patch.object(transport_class, "__init__") as patched:
         patched.return_value = None
-        client = client_class(transport=transport_name, client_options=options)
+        client = client_class(client_options=options, transport=transport_name)
         patched.assert_called_once_with(
             credentials=None,
             credentials_file="credentials.json",
@@ -495,9 +495,8 @@ def test_quota_controller_client_client_options_from_dict():
         )
 
 
-def test_allocate_quota(
-    transport: str = "grpc", request_type=quota_controller.AllocateQuotaRequest
-):
+@pytest.mark.parametrize("request_type", [quota_controller.AllocateQuotaRequest, dict,])
+def test_allocate_quota(request_type, transport: str = "grpc"):
     client = QuotaControllerClient(
         credentials=ga_credentials.AnonymousCredentials(), transport=transport,
     )
@@ -526,10 +525,6 @@ def test_allocate_quota(
     assert response.service_config_id == "service_config_id_value"
 
 
-def test_allocate_quota_from_dict():
-    test_allocate_quota(request_type=dict)
-
-
 def test_allocate_quota_empty_call():
     # This test is a coverage failsafe to make sure that totally empty calls,
     # i.e. request == None and no flattened fields passed, work.
@@ -1084,7 +1079,7 @@ def test_parse_common_location_path():
     assert expected == actual
 
 
-def test_client_withDEFAULT_CLIENT_INFO():
+def test_client_with_default_client_info():
     client_info = gapic_v1.client_info.ClientInfo()
 
     with mock.patch.object(
diff --git a/tests/unit/gapic/servicecontrol_v1/test_service_controller.py b/tests/unit/gapic/servicecontrol_v1/test_service_controller.py
index 4b068e8..55e291e 100644
--- a/tests/unit/gapic/servicecontrol_v1/test_service_controller.py
+++ b/tests/unit/gapic/servicecontrol_v1/test_service_controller.py
@@ -262,20 +262,20 @@ def test_service_controller_client_client_options(
     # unsupported value.
     with mock.patch.dict(os.environ, {"GOOGLE_API_USE_MTLS_ENDPOINT": "Unsupported"}):
         with pytest.raises(MutualTLSChannelError):
-            client = client_class()
+            client = client_class(transport=transport_name)
 
     # Check the case GOOGLE_API_USE_CLIENT_CERTIFICATE has unsupported value.
     with mock.patch.dict(
         os.environ, {"GOOGLE_API_USE_CLIENT_CERTIFICATE": "Unsupported"}
     ):
         with pytest.raises(ValueError):
-            client = client_class()
+            client = client_class(transport=transport_name)
 
     # Check the case quota_project_id is provided
     options = client_options.ClientOptions(quota_project_id="octopus")
     with mock.patch.object(transport_class, "__init__") as patched:
         patched.return_value = None
-        client = client_class(transport=transport_name, client_options=options)
+        client = client_class(client_options=options, transport=transport_name)
         patched.assert_called_once_with(
             credentials=None,
             credentials_file=None,
@@ -344,7 +344,7 @@ def test_service_controller_client_mtls_env_auto(
         )
         with mock.patch.object(transport_class, "__init__") as patched:
             patched.return_value = None
-            client = client_class(transport=transport_name, client_options=options)
+            client = client_class(client_options=options, transport=transport_name)
 
             if use_client_cert_env == "false":
                 expected_client_cert_source = None
@@ -439,7 +439,7 @@ def test_service_controller_client_client_options_scopes(
     options = client_options.ClientOptions(scopes=["1", "2"],)
     with mock.patch.object(transport_class, "__init__") as patched:
         patched.return_value = None
-        client = client_class(transport=transport_name, client_options=options)
+        client = client_class(client_options=options, transport=transport_name)
         patched.assert_called_once_with(
             credentials=None,
             credentials_file=None,
@@ -470,7 +470,7 @@ def test_service_controller_client_client_options_credentials_file(
     options = client_options.ClientOptions(credentials_file="credentials.json")
     with mock.patch.object(transport_class, "__init__") as patched:
         patched.return_value = None
-        client = client_class(transport=transport_name, client_options=options)
+        client = client_class(client_options=options, transport=transport_name)
         patched.assert_called_once_with(
             credentials=None,
             credentials_file="credentials.json",
@@ -503,7 +503,8 @@ def test_service_controller_client_client_options_from_dict():
         )
 
 
-def test_check(transport: str = "grpc", request_type=service_controller.CheckRequest):
+@pytest.mark.parametrize("request_type", [service_controller.CheckRequest, dict,])
+def test_check(request_type, transport: str = "grpc"):
     client = ServiceControllerClient(
         credentials=ga_credentials.AnonymousCredentials(), transport=transport,
     )
@@ -534,10 +535,6 @@ def test_check(transport: str = "grpc", request_type=service_controller.CheckReq
     assert response.service_rollout_id == "service_rollout_id_value"
 
 
-def test_check_from_dict():
-    test_check(request_type=dict)
-
-
 def test_check_empty_call():
     # This test is a coverage failsafe to make sure that totally empty calls,
     # i.e. request == None and no flattened fields passed, work.
@@ -594,7 +591,8 @@ async def test_check_async_from_dict():
     await test_check_async(request_type=dict)
 
 
-def test_report(transport: str = "grpc", request_type=service_controller.ReportRequest):
+@pytest.mark.parametrize("request_type", [service_controller.ReportRequest, dict,])
+def test_report(request_type, transport: str = "grpc"):
     client = ServiceControllerClient(
         credentials=ga_credentials.AnonymousCredentials(), transport=transport,
     )
@@ -623,10 +621,6 @@ def test_report(transport: str = "grpc", request_type=service_controller.ReportR
     assert response.service_rollout_id == "service_rollout_id_value"
 
 
-def test_report_from_dict():
-    test_report(request_type=dict)
-
-
 def test_report_empty_call():
     # This test is a coverage failsafe to make sure that totally empty calls,
     # i.e. request == None and no flattened fields passed, work.
@@ -1184,7 +1178,7 @@ def test_parse_common_location_path():
     assert expected == actual
 
 
-def test_client_withDEFAULT_CLIENT_INFO():
+def test_client_with_default_client_info():
     client_info = gapic_v1.client_info.ClientInfo()
 
     with mock.patch.object(