diff --git a/app/config.py b/app/config.py
index b3d76dc93..5fc8bfd39 100644
--- a/app/config.py
+++ b/app/config.py
@@ -290,6 +290,7 @@ class Test(Config):
     FROM_NUMBER = 'testing'
     NOTIFY_ENVIRONMENT = 'test'
     DEBUG = True
+    TESTING = True
     CSV_UPLOAD_BUCKET_NAME = 'test-notifications-csv-upload'
     DVLA_RESPONSE_BUCKET_NAME = 'test.notify.com-ftp'
     STATSD_ENABLED = True
diff --git a/tests/app/conftest.py b/tests/app/conftest.py
index f01fcae15..bf3832855 100644
--- a/tests/app/conftest.py
+++ b/tests/app/conftest.py
@@ -988,34 +988,34 @@ def admin_request(client):
     class AdminRequest:
 
         @staticmethod
-        def get(endpoint, endpoint_kwargs=None, expected_status=200):
+        def get(endpoint, _expected_status=200, **endpoint_kwargs):
             resp = client.get(
                 url_for(endpoint, **(endpoint_kwargs or {})),
                 headers=[create_authorization_header()]
             )
             json_resp = json.loads(resp.get_data(as_text=True))
-            assert resp.status_code == expected_status
+            assert resp.status_code == _expected_status
             return json_resp
 
         @staticmethod
-        def post(endpoint, endpoint_kwargs=None, data=None, expected_status=200):
+        def post(endpoint, _data=None, _expected_status=200, **endpoint_kwargs):
             resp = client.post(
                 url_for(endpoint, **(endpoint_kwargs or {})),
-                data=json.dumps(data),
+                data=json.dumps(_data),
                 headers=[('Content-Type', 'application/json'), create_authorization_header()]
             )
             json_resp = json.loads(resp.get_data(as_text=True))
-            assert resp.status_code == expected_status
+            assert resp.status_code == _expected_status
             return json_resp
 
         @staticmethod
-        def delete(endpoint, endpoint_kwargs=None, expected_status=204):
+        def delete(endpoint, _expected_status=204, **endpoint_kwargs):
             resp = client.delete(
                 url_for(endpoint, **(endpoint_kwargs or {})),
                 headers=[create_authorization_header()]
             )
             json_resp = json.loads(resp.get_data(as_text=True))
-            assert resp.status_code == expected_status
+            assert resp.status_code == _expected_status
             return json_resp
 
     return AdminRequest
diff --git a/tests/app/inbound_sms/test_rest.py b/tests/app/inbound_sms/test_rest.py
index 5edc3bbcb..9d2c891f2 100644
--- a/tests/app/inbound_sms/test_rest.py
+++ b/tests/app/inbound_sms/test_rest.py
@@ -164,7 +164,7 @@ def test_get_inbound_sms(admin_request, sample_service):
 
     json_resp = admin_request.get(
         'inbound_sms.get_inbound_sms_for_service',
-        endpoint_kwargs={'service_id': sample_service.id}
+        service_id=sample_service.id
     )
 
     sms = json_resp['data']
@@ -192,7 +192,8 @@ def test_get_inbound_sms_limits(admin_request, sample_service):
 
     sms = admin_request.get(
         'inbound_sms.get_inbound_sms_for_service',
-        endpoint_kwargs={'service_id': sample_service.id, 'limit': 1}
+        service_id=sample_service.id,
+        limit=1,
     )
 
     assert len(sms['data']) == 1
@@ -211,7 +212,8 @@ def test_get_inbound_sms_filters_user_number(admin_request, sample_service, user
 
     sms = admin_request.get(
         'inbound_sms.get_inbound_sms_for_service',
-        endpoint_kwargs={'service_id': sample_service.id, 'user_number': user_number}
+        service_id=sample_service.id,
+        user_number=user_number,
     )
 
     assert len(sms['data']) == 1
@@ -226,7 +228,8 @@ def test_get_inbound_sms_filters_international_user_number(admin_request, sample
 
     sms = admin_request.get(
         'inbound_sms.get_inbound_sms_for_service',
-        endpoint_kwargs={'service_id': sample_service.id, 'user_number': '+1 (202) 555-0104'}
+        service_id=sample_service.id,
+        user_number='+1 (202) 555-0104',
     )
 
     assert len(sms['data']) == 1
@@ -249,7 +252,7 @@ def test_get_inbound_sms_summary(admin_request, sample_service):
 
     summary = admin_request.get(
         'inbound_sms.get_inbound_sms_summary_for_service',
-        endpoint_kwargs={'service_id': sample_service.id}
+        service_id=sample_service.id
     )
 
     assert summary == {
@@ -261,7 +264,7 @@ def test_get_inbound_sms_summary(admin_request, sample_service):
 def test_get_inbound_sms_summary_with_no_inbound(admin_request, sample_service):
     summary = admin_request.get(
         'inbound_sms.get_inbound_sms_summary_for_service',
-        endpoint_kwargs={'service_id': sample_service.id}
+        service_id=sample_service.id
     )
 
     assert summary == {
@@ -275,10 +278,8 @@ def test_get_inbound_sms_by_id_returns_200(admin_request, sample_service):
 
     response = admin_request.get(
         'inbound_sms.get_inbound_by_id',
-        endpoint_kwargs={
-            'service_id': sample_service.id,
-            'inbound_sms_id': inbound.id
-        }
+        service_id=sample_service.id,
+        inbound_sms_id=inbound.id,
     )
 
     assert response['user_number'] == '447700900001'
@@ -288,20 +289,16 @@ def test_get_inbound_sms_by_id_returns_200(admin_request, sample_service):
 def test_get_inbound_sms_by_id_invalid_id_returns_404(admin_request, sample_service):
     assert admin_request.get(
         'inbound_sms.get_inbound_by_id',
-        endpoint_kwargs={
-            'service_id': sample_service.id,
-            'inbound_sms_id': 'bar'
-        },
-        expected_status=404
+        service_id=sample_service.id,
+        inbound_sms_id='bar',
+        _expected_status=404
     )
 
 
 def test_get_inbound_sms_by_id_with_invalid_service_id_returns_404(admin_request, sample_service):
     assert admin_request.get(
         'inbound_sms.get_inbound_by_id',
-        endpoint_kwargs={
-            'service_id': 'foo',
-            'inbound_sms_id': '2cfbd6a1-1575-4664-8969-f27be0ea40d9'
-        },
-        expected_status=404
+        service_id='foo',
+        inbound_sms_id='2cfbd6a1-1575-4664-8969-f27be0ea40d9',
+        _expected_status=404
     )
diff --git a/tests/app/service/test_rest.py b/tests/app/service/test_rest.py
index b948ec2f3..157bc6dc2 100644
--- a/tests/app/service/test_rest.py
+++ b/tests/app/service/test_rest.py
@@ -1322,10 +1322,8 @@ def test_get_notification_for_service_includes_created_by(admin_request, sample_
 
     resp = admin_request.get(
         'service.get_notification_for_service',
-        endpoint_kwargs={
-            'service_id': sample_notification.service_id,
-            'notification_id': sample_notification.id
-        }
+        service_id=sample_notification.service_id,
+        notification_id=sample_notification.id
     )
 
     assert resp['id'] == str(sample_notification.id)
@@ -2252,15 +2250,13 @@ def test_fetch_service_inbound_api(client, sample_service):
 def test_send_one_off_notification(admin_request, sample_template):
     response = admin_request.post(
         'service.create_one_off_notification',
-        endpoint_kwargs={
-            'service_id': sample_template.service_id
-        },
-        data={
+        service_id=sample_template.service_id,
+        _data={
             'template_id': str(sample_template.id),
             'to': '07700900001',
             'created_by': str(sample_template.service.created_by_id)
         },
-        expected_status=201
+        _expected_status=201
     )
 
     noti = Notification.query.one()