cube-js/cube

How to mock messages using @cubejs-client/react with websocket transport?

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#2146 aperta il 18 feb 2021

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Problem

I am using @cubejs-client/react with @cubejs-client/ws-transport and I'm running into some blockers trying to mock anything.

I use msw for mocking all my "normal" network requests for use in unit testing, integration tests, storybook and a fully mocked dev environment.

I've been searching for a way to mock CubeJS websocket messages in a similar way, but haven't found anything :(

I tried setting up mock-socket and jest-mock-socket but that didn't seem to work for CubeJS?

Do you have any solution in place for mocking CubeJS responses? Ideally I'm looking for something that works like this:

received queryA
respond with resultA

received queryB
respond with resultB

Something like the MockedProvider that apollo has for their ApolloClient. But for @cubejs-client/react

I need a solution that will work in basically any environment: test, local dev, cypress & storybook.

I considered writing a mock for the useCubeQuery hook, but that seems like a slippery slope to go down that road and end up testing implementation details that might break in future versions.

Are there any official mocking/ testing solutions for the frontend clients?

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