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The Ultimate Guide to Redux

Making the Tests Pretty

Explore techniques to simplify testing Redux reducers by combining action and expectation steps and leveraging Jest snapshot testing. This lesson helps you maintain robust and readable tests while ensuring state integrity in your Redux applications.

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Now that we’ve solved all the functionality issues, we can use the same tricks we used in the action creator tests to simplify our reducer tests. Here are the original tests:

it('should add recipe to empty list', () => {
  const action = { type: ADD_RECIPE, payload: 'test' };
  const expected = [{ title: "test" }];

  expect(reducer(initialState,
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