Mocking API.graphql(...).subscribe(...) using Jest

Which Category is your question related to? API, in particular graphql

What AWS Services are you utilizing? AppSync

Provide additional details e.g. code snippets I need to have 100% coverage in my app (its a react app that uses amplify-cli, which in turn uses amplify-js, and I need some guidance into mocking the API subscriptions. This is a piece of code I need to mock in order to test (I am using jest, obviously anything else would work if there are other tools you guys know):

API.graphql(
    graphqlOperation(subscriptions.onCreateItem, { owner: username })
  ).subscribe({
    next: (item) => {
      // Do something with the code, irrelevant for the purposes of this question.
    }
  })

I’ve looked at https://www.apollographql.com/docs/graphql-tools/mocking.html, plus google searched, looked into this repo at the tests that you guys have and also into amplify-cli, but I can’t seem to get it working. If you have any code examples that would be great, I don’t need hand holding to mock the above, just a good example or two that I can take inspiration from.

You guys have a test from subscriptions, but its being skipped (it’s https://github.com/aws-amplify/amplify-js/blob/master/packages/api/__tests__/API-test.ts#L268 and I couldn’t get it working either - I’m getting a GraphQL Network error)

[elchicofrommo]

Any movement on this? I just spent yesterday beating my head against this. I opened up another defect WRT testing and Amplify. I kind of have a love/hate relationship with the stack at this point.

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