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8de2a3ee13
chore: move all the tests to the separate directory outside of sources; chore: remove jest.config.js (config moved to the package.json); test: unused import in test; test: 💍 fix tests add back x and y to useMeasure chore: 🤖 add linter to /tests folder ci: 🎡 limit Jest worker count for CircleCI
34 lines
866 B
TypeScript
34 lines
866 B
TypeScript
import { act, renderHook } from '@testing-library/react-hooks';
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import useQueue from '../src/useQueue';
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const setUp = (initialQueue?: any[]) => renderHook(() => useQueue(initialQueue));
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it('takes initial state', () => {
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const { result } = setUp([1, 2, 3]);
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const { first, last, size } = result.current;
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expect(first).toEqual(1);
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expect(last).toEqual(3);
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expect(size).toEqual(3);
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});
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it('appends new member', () => {
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const { result } = setUp([1, 2]);
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act(() => {
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result.current.add(3);
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});
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const { first, last, size } = result.current;
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expect(first).toEqual(1);
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expect(last).toEqual(3);
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expect(size).toEqual(3);
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});
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it('pops oldest member', () => {
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const { result } = setUp([1, 2]);
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act(() => {
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result.current.remove();
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});
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const { first, size } = result.current;
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expect(first).toEqual(2);
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expect(size).toEqual(1);
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});
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