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15 lines
500 B
JavaScript
15 lines
500 B
JavaScript
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// https://jestjs.io/docs/en/manual-mocks#mocking-methods-which-are-not-implemented-in-jsdom
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Object.defineProperty(window, 'matchMedia', {
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writable: true,
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value: jest.fn().mockImplementation(query => ({
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matches: false,
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media: query,
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onchange: null,
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addListener: jest.fn(), // deprecated
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removeListener: jest.fn(), // deprecated
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addEventListener: jest.fn(),
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removeEventListener: jest.fn(),
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dispatchEvent: jest.fn(),
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})),
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});
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