Update logger.py to use new Twisted log api. No change in evennia-side usage

evennia/server/tests/testrunner.py

@@ -16,20 +16,27 @@ class EvenniaTestSuiteRunner(DiscoverRunner):
      avoid running the large number of tests defined by Django
 
     """
-
-    def build_suite(self, test_labels, extra_tests=None, **kwargs):
-        """
-        Build a test suite for Evennia. test_labels is a list of apps to test.
-        If not given, a subset of settings.INSTALLED_APPS will be used.
-        """
+    def setup_test_environment(self, **kwargs):
         # the portal looping call starts before the unit-test suite so we
         # can't mock it - instead we stop it before starting the test - otherwise
         # we'd get unclean reactor errors across test boundaries.
         from evennia.server.portal.portal import PORTAL
-
         PORTAL.maintenance_task.stop()
 
+        # initialize evennia itself
         import evennia
-
         evennia._init()
-        return super().build_suite(test_labels, extra_tests=extra_tests, **kwargs)
+
+        from django.conf import settings
+
+        # set testing flag while suite runs
+        settings._TEST_ENVIRONMENT = True
+        super().setup_test_environment(**kwargs)
+
+    def teardown_test_environment(self, **kwargs):
+
+        # remove testing flag after suite has run
+        from django.conf import settings
+        settings._TEST_ENVIRONMENT = False
+
+        super().teardown_test_environment(**kwargs)