Change assertTrue(not var) to assertFalse(var) in passport-vc test

Signed-off-by: Tiago Nascimento <[email protected]>

Author: theosirian

app/passport/tests/test_passport_vc.py

@@ -46,6 +46,6 @@ def test_issue_and_verify_credential(self):
                 json.dumps(options))
 
         verify = json.loads(verifyStr)
-        self.assertTrue(not verify["errors"])
+        self.assertFalse(verify["errors"])
 
         pass