Fix skipped tests in managemails

gnuviechadmin/osusers/tests/testutils.py

@@ -0,0 +1,13 @@
+from django.contrib import auth
+
+from osusers.models import User
+
+
+def create_test_customer():
+    customer_model = auth.get_user_model()
+    return customer_model.objects.create_user("test_customer", "testuser@example.org", "test_password")
+
+
+def create_test_user():
+    customer = create_test_customer()
+    return User.objects.create_user(customer)