diff --git a/src/briar/api/model.py b/src/briar/api/model.py
index 3a8fdaacb747dabc77b693f4e79ba07aad5b5bee..f432c2b35570655802329e54a7b5f2e6f0dee746 100644
--- a/src/briar/api/model.py
+++ b/src/briar/api/model.py
@@ -12,4 +12,4 @@ class Model:  # pylint: disable=too-few-public-methods
         self._initialize_headers()
 
     def _initialize_headers(self):
-        self._headers['Authorization'] = 'Bearer %s' % self._api.auth_token
+        self._headers["Authorization"] = "Bearer %s" % self._api.auth_token
diff --git a/tests/briar/api/models/test_contacts.py b/tests/briar/api/models/test_contacts.py
index 92e50f6e25228d3e7365e6c7e97cda9e4276d36d..b3498fe98cd36b38b431dbd952ac8d64641ecda4 100644
--- a/tests/briar/api/models/test_contacts.py
+++ b/tests/briar/api/models/test_contacts.py
@@ -11,20 +11,31 @@ from briar.api.models.contacts import Contacts
 
 class TestContacts(TestCase):
 
+    # TODO: randomly generate token
+    AUTH_TOKEN = "xxhQhFNdq5R2YcipNcT3uYoMyOT2PxBl3tpWiO5Qy65w="
+
     @requests_mock.Mocker()
-    def test_get(self, requests_mock):
-        api = mock.Mock()
+    def test_get_empty(self, requests_mock):
+        api = TestContacts._get_mocked_api()
+        request_headers = TestContacts._get_mocked_request_headers()
+
         contacts = Contacts(api)
-        response_mock = {}
-        response_mock["author"] = {}
-        response_mock["author"]["formatVersion"] = 1
-        response_mock["author"]["id"] = "y1wkIzAimAbYoCGgWxkWlr6vnq1F8t1QRA/UMPgI0E0="
-        response_mock["author"]["name"] = "Test"
-        response_mock["author"]["publicKey"] = "BDu6h1S02bF4W6rgoZfZ6BMjTj/9S9hNN7EQoV05qUo="
-        response_mock["contactId"] = 1
-        response_mock["alias"] = "A local nickname"
-        response_mock["handshakePublicKey"] = "XnYRd7a7E4CTqgAvh4hCxh/YZ0EPscxknB9ZcEOpSzY="
-        response_mock["verified"] = True
-
-        requests_mock.get("http://localhost:7000/v1/contacts", text=json.dumps(response_mock))
-        self.assertEqual(contacts.get(), response_mock)
+        response = list()
+
+        requests_mock.register_uri("GET", "http://localhost:7000/v1/contacts",
+                                   request_headers=request_headers,
+                                   text=json.dumps(response))
+        assert contacts.get() == response
+
+    # TODO: Use pytest fixtures
+    def _get_mocked_api():
+        api = mock.Mock()
+        api.auth_token = TestContacts.AUTH_TOKEN
+        return api
+
+    # TODO: Use pytest fixtures
+    def _get_mocked_request_headers():
+        request_headers = {}
+        authorization_header = 'Bearer %s' % TestContacts.AUTH_TOKEN
+        request_headers["Authorization"] = authorization_header
+        return request_headers