diff --git a/tests/backend/test_connection.py b/tests/backend/test_connection.py
index 5dc3f42..94e7615 100644
--- a/tests/backend/test_connection.py
+++ b/tests/backend/test_connection.py
@@ -13,11 +13,11 @@ def test_get_connection_raises_a_configuration_error(monkeypatch):
     with pytest.raises(ConnectionError):
         TarantoolDBConnection("localhost", "1337", "mydb", "password")
 
+
 @pytest.mark.skip(reason="we currently do not suppport mongodb.")
 def test_get_connection_raises_a_configuration_error_mongodb(monkeypatch):
     from planetmint.backend.localmongodb.connection import LocalMongoDBConnection
     from transactions.common.exceptions import ConfigurationError
 
     with pytest.raises(ConnectionError):
-       conn = LocalMongoDBConnection("localhost", "1337", "mydb", "password")
-
+        conn = LocalMongoDBConnection("localhost", "1337", "mydb", "password")
diff --git a/tests/test_core.py b/tests/test_core.py
index 3e76eb4..52a66d5 100644
--- a/tests/test_core.py
+++ b/tests/test_core.py
@@ -39,6 +39,7 @@ def config(request, monkeypatch):
     monkeypatch.setattr("planetmint.config", config)
     return config
 
+
 def test_bigchain_class_default_initialization(config):
     from planetmint import Planetmint
     from planetmint.validation import BaseValidationRules