diff --git a/sapl/test_general.py b/sapl/test_general.py
index 443cc40d4..47a992aed 100644
--- a/sapl/test_general.py
+++ b/sapl/test_general.py
@@ -6,6 +6,18 @@ from .settings import SAPL_APPS
 
 pytestmark = pytest.mark.django_db
 
+for model in apps.get_models():
+    fields = model._meta.local_fields
+    for field in fields:
+            if (type(field).__name__ == 'CharField' or
+                    type(field).__name__ == 'TextField'):
+                msg = 'Model = %s || Field = %s - %s - %s' % (
+                       model.__name__,
+                       field.attname,
+                       type(field).__name__,
+                       field.null)
+                raise AssertionError(msg)
+
 
 def test_str_sanity():
     # this simply a sanity check