TestV1Alpha1GraphQLErrors.test_v1alpha1_validation_error is flaky over websockets #2710
Description
As showed up in #2685 (and I’ve seen in my own PR, #2672), the TestV1Alpha1GraphQLErrors.test_v1alpha1_validation_error server test in test_v1alpha1_endpoint.py is flaky and frequently (but not always) fails in CI with the following error:
E AssertionError: diff:
E code: start-failed
E error: start received before the connection is initialised
E path: $
E expected:
E code: validation-failed
E error: 'field "notPresentCol" not found in type: ''author'''
E path: $.selectionSet.author.selectionSet.notPresentCol
E response:
E code: start-failed
E error: start received before the connection is initialised
E path: $
I haven’t looked into why that test has suddenly started sporadically failing, but it’s a little strange, since the test itself hasn’t changed in several months.