test3-test.js

import * as Store from "./AppContext";
// ...

describe('App', () => {

  // ...

  describe('Question', () => {
    // - context spy
    const contextValues = { chosenAnswers: [], setChosenAnswers: () => {} };
    jest.spyOn(Store, 'useAppContext').mockImplementation(() => contextValues);

    const getButton = question => question.find('Button');
    const wrapperProps = index => ({ index, result: data.results[0] });
    const wrapper = props => mount(<Question {...props} />);

    test('Should have only one Next button for the first question', () => {
      // - when
      const firstQuestion = wrapper(wrapperProps(0));
      // - then
      expect(getButton(firstQuestion).text()).toEqual('next');
      expect(getButton(firstQuestion).length).toEqual(1);
    });
  });
});