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132 lines
3.1 KiB
JavaScript
132 lines
3.1 KiB
JavaScript
import raf from 'raf';
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import delayRaf from '../raf';
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import throttleByAnimationFrame from '../throttleByAnimationFrame';
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import getDataOrAriaProps from '../getDataOrAriaProps';
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import triggerEvent from '../triggerEvent';
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describe('Test utils function', () => {
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beforeAll(() => {
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jest.useFakeTimers();
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});
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afterAll(() => {
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jest.useRealTimers();
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});
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it('throttle function should work', () => {
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const callback = jest.fn();
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const throttled = throttleByAnimationFrame(callback);
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expect(callback).not.toBeCalled();
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throttled();
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throttled();
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jest.runAllTimers();
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expect(callback).toBeCalled();
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expect(callback.mock.calls.length).toBe(1);
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});
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it('throttle function should be canceled', () => {
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const callback = jest.fn();
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const throttled = throttleByAnimationFrame(callback);
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throttled();
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throttled.cancel();
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jest.runAllTimers();
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expect(callback).not.toBeCalled();
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});
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describe('getDataOrAriaProps', () => {
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it('returns all data-* properties from an object', () => {
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const props = {
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onClick: () => {},
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isOpen: true,
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'data-test': 'test-id',
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'data-id': 1234,
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};
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const results = getDataOrAriaProps(props);
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expect(results).toEqual({
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'data-test': 'test-id',
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'data-id': 1234,
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});
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});
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it('does not return data-__ properties from an object', () => {
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const props = {
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onClick: () => {},
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isOpen: true,
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'data-__test': 'test-id',
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'data-__id': 1234,
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};
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const results = getDataOrAriaProps(props);
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expect(results).toEqual({});
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});
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it('returns all aria-* properties from an object', () => {
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const props = {
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onClick: () => {},
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isOpen: true,
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'aria-labelledby': 'label-id',
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'aria-label': 'some-label',
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};
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const results = getDataOrAriaProps(props);
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expect(results).toEqual({
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'aria-labelledby': 'label-id',
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'aria-label': 'some-label',
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});
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});
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it('returns role property from an object', () => {
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const props = {
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onClick: () => {},
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isOpen: true,
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role: 'search',
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};
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const results = getDataOrAriaProps(props);
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expect(results).toEqual({ role: 'search' });
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});
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});
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it('delayRaf', done => {
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jest.useRealTimers();
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let bamboo = false;
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delayRaf(() => {
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bamboo = true;
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}, 3);
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// Variable bamboo should be false in frame 2 but true in frame 4
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raf(() => {
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expect(bamboo).toBe(false);
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// Frame 2
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raf(() => {
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expect(bamboo).toBe(false);
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// Frame 3
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raf(() => {
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// Frame 4
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raf(() => {
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expect(bamboo).toBe(true);
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done();
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});
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});
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});
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});
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});
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it('triggerEvent', () => {
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const button = document.createElement('button');
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button.addEventListener(
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'click',
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() => {
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button.style.width = '100px';
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},
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true,
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);
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triggerEvent(button, 'click');
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expect(button.style.width).toBe('100px');
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});
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});
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