Testing a nested custom hook with react-testing-library

Question

I'm trying to test a hook in isolation with @testing-library/render-hooks in a React Native project. The hook I have looks something like this:

const useStatus = () => {
  const [ status, setStatus ] = useState(null)
  const { data: data1 } = useDataHook1()
  const { data: data2 } = useDataHook2()
  useEffect(() => {
    if (data1 && data2) {
      // Some logic to determine status based on data1 + data2
      setStatus(...)
    }
  }, [data1, data2])
  return { status }
}

So I want to test useStatus and I'd like to mock useData1 and useData2, all three hooks of which are defined in the same file. My test looks like so:

import * as hooks from 'path/to/hooks'

const data1Spy = jest.spyOn(hooks, 'useData1')
const data2Spy = jest.spyOn(hooks, 'useData2')

describe('useStatus', () => {
  it('should render', async () => {
    data1Spy.mockReturnValue({ data: 'foo' }
    data2Spy.mockReturnValue({ data: 'bar' }
    const { result, waitForNextUpdate } = renderHook(() => hooks.useStatus())
    await waitForNextUpdate()
    console.log(result.current.status)
  }
}

The console logs values that I would expect if the nested data hooks weren't returning, and the error:

Jest did not exit one second after the test run has completed.

This usually means that there are asynchronous operations that weren't stopped in your tests. Consider running Jest with `--detectOpenHandles` to troubleshoot this issue.

appears, which tells me that the mocks aren't being set correctly. (Thinking the SWR queries are trying to dispatch in a test environment, leading to unresolved promises floating around after the test finishes.) Some things I've tried:

• Using mockReturnValue as seen in the above code
• Using mockImplementation instead of mockReturnValue
• Using jest.mock + jest.requireActual pattern as is done here

I'm not sure what else to try. I've been able to mock hooks before using the above pattern when rendering a component, but this is my first time working with rendering the hook directly. Any thoughts?