Fix missing unit test flag

evennia/utils/test_resources.py

@@ -97,6 +97,7 @@ DEFAULT_SETTING_RESETS = dict(
     BASE_GUEST_TYPECLASS="evennia.accounts.accounts.DefaultGuest",
     # a special setting boolean TEST_ENVIRONMENT is set by the test runner
     # while the test suite is running.
+    TEST_ENVIRONMENT=True
 )
 
 DEFAULT_SETTINGS = {**all_from_module(settings_default), **DEFAULT_SETTING_RESETS}