medium10 pts · first answer countstest-automationjesttest-doubles

Watching a real method

You want the real logger.warn to keep running but also check it was called with "Low stock". Which Jest feature fits?

A.jest.mock('logger') to replace the whole module with auto-mocksB.logger.warn = () => {} at the start of the test fileC.jest.useFakeTimers() so that the call can be detectedD.jest.spyOn(logger, 'warn') and then assert toHaveBeenCalledWith('Low stock')

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Watching a real method

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