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    Mocking an ajax request when testing epics

    reduxRedux
    3 - 4

    Often in unit tests we are focussing on the logic involved in crafting a network request, & how we respond to the result. The external service is unlikely to be under our control, so we need a way to ‘mock’ the Ajax request in a way that allows us to focus on the logic. In this lesson we’ll see how we can pass in dependencies into epics to make testing things Ajax requests easier.