Parent header does not match expected

[snmhas]

Hi all,
I don't have enough knowledge about test code in Jupyterlab. I am trying to developed test code for my custom kernel. I am getting bellow error when I ran test code using python3.

Error :
File ".../jupyter_kernel_test/jupyter_kernel_test/msgspec_v5.py", line 121, in validate_message
raise ValidationError("Parent header does not match expected")
jsonschema.exceptions.ValidationError: Parent header does not match expected.

Test Code :
def test_mykernel(self):
reply, output_msgs = self.execute_helper(code='version()')
self.assertEqual(output_msgs[0]['msg_type'], 'execute_result')
self.assertEqual(output_msgs[0]['content']['name'], 'stdout')
self.assertEqual(output_msgs[0]['content']['text'], 'v0.4.7')

Jupyterlab result :

[blink1073]

Hi @snmhas, we've relaxed the parent header requirement for non-reply, messages in #62