diff --git a/test.py b/test.py
index ee268d3..06c0165 100644
--- a/test.py
+++ b/test.py
@@ -54,6 +54,58 @@ class TestValidation(tornado.testing.AsyncHTTPTestCase):
 
         validation_result = json.loads(response.body.decode())
 
+        self.assertIn('valid', validation_result, "Key 'valid' expected in validation result")
+        self.assertFalse(validation_result['valid'], "Validation result is expected to be valid==false")
+
+    def test_valid_entity(self):
+        entity = {
+            'finanzdaten': 
+                {
+                'bic': 'PBNKDEFFXXX', 
+                'holder': '', 
+                'iban': 'DE89370400440532013000', 
+                'issuance': '2012-01-01', 
+                'reference': '0042', 
+                'scan-sepa-mandate': ''
+                }, 
+            'mitgliederdaten': 
+                {
+                'bis': '', 
+                'mitgliedsbeitrag': '30', 
+                'scan-antrag': '', 
+                'schliessberechtigung': 'Ja', 
+                'spendenbeitrag': '0', 
+                'status': 'V', 
+                'von': '2012-01-01'
+                }, 
+            'stammdaten': 
+                {
+                'address_code': '39104', 
+                'address_country': 'DE', 
+                'address_label': 'Max Hackerberg\nLeibnizstr. 32\n39104 Magdeburg', 
+                'address_locality': 'Magdeburg', 
+                'address_region': '', 
+                'address_street': 'Leibnizstr. 32', 
+                'birth_date': '1970-01-01', 
+                'birth_location': 'Hackstadt', 
+                'email': 'max.hackerberg@netz39.de', 
+                'fullname': 'Max Hackerberg', 
+                'nickname': 'maxH', 
+                'pgp-key': '', 
+                'ssh-key': ''
+                }, 
+            'timestamp': '2020-03-25T23:58:11', 
+            'id': '6af68'
+            }
+
+        response = self.fetch('/v0/validate',
+                              method='POST',
+                              body=json.dumps(entity))
+        
+        self.assertEqual(200, response.code, "Validation must always return 200")
+
+        validation_result = json.loads(response.body.decode())
+
         self.assertIn('valid', validation_result, "Key 'valid' expected in validation result")
         self.assertTrue(validation_result['valid'], "Validation result is expected to be valid==true")