ContainMessage succeeds if actual is a GraphQL Error that contains the passed-in message.

HaveCode succeeds if actual is a GraphQL Error that have the passed-in code extension.

HaveMessage succeeds if actual is a GraphQL Error that have the passed-in message extension.

HaveModule succeeds if actual is a GraphQL Error that have the passed-in module extension.

HaveValidation succeeds if actual is a GraphQL Error that have the passed-in field validation errors.