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fix: test mock cleanup for useMemo #70

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fix: test mock cleanup for useMemo #70

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12 changes: 9 additions & 3 deletions src/containers/LearnerDashboardHeader/hooks.test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -4,12 +4,18 @@ import { useIsCollapsed } from './hooks';
describe('LearnerDashboardHeader hooks', () => {
describe('useIsCollapsed', () => {
test('large screen is not collapsed', () => {
const width = breakpoints.large.maxWidth + 1;
useWindowSize.mockReturnValueOnce({ width: breakpoints.large.maxWidth + 1 });
expect(useIsCollapsed()).toEqual(false);
const { cb, prereqs } = useIsCollapsed().useMemo;
expect(prereqs).toEqual([width]);
expect(cb()).toEqual(false);
});
test('small screen is collapsed', () => {
useWindowSize.mockReturnValueOnce({ width: breakpoints.large.maxWidth - 1 });
expect(useIsCollapsed()).toEqual(true);
const width = breakpoints.large.maxWidth - 1;
useWindowSize.mockReturnValueOnce({ width });
const { cb, prereqs } = useIsCollapsed().useMemo;
expect(prereqs).toEqual([width]);
expect(cb()).toEqual(true);
});
});
});
2 changes: 1 addition & 1 deletion src/setupTest.jsx
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Expand Up @@ -12,7 +12,7 @@ jest.mock('react', () => ({
useRef: jest.fn((val) => ({ current: val, useRef: true })),
useCallback: jest.fn((cb, prereqs) => ({ useCallback: { cb, prereqs } })),
useEffect: jest.fn((cb, prereqs) => ({ useEffect: { cb, prereqs } })),
useMemo: jest.fn((cb, prereqs) => cb(prereqs)),
useMemo: jest.fn((cb, prereqs) => ({ useMemo: { cb, prereqs } })),
useContext: jest.fn(context => context),
}));

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