force redis test data to be refreshed before each test

test/conftest.py

@@ -143,6 +143,7 @@ def flask_config_filename():
 
 @pytest.fixture
 def mocked_redis(mocker):
+    MockedRedis.db = None  # force data to be reloaded
     mocker.patch(
         'inventory_provider.tasks.common.redis.StrictRedis',
         MockedRedis)