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98e36aa036
As proposed in #22343, the components can be automatically validated for accessibility. This adds a test helper that runs Axe to check for accessibility violations.
217 lines
6.2 KiB
TypeScript
217 lines
6.2 KiB
TypeScript
import React from 'react';
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import { mount, ReactWrapper } from 'enzyme';
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import Affix, { AffixProps, AffixState } from '..';
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import { getObserverEntities } from '../utils';
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import Button from '../../button';
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import rtlTest from '../../../tests/shared/rtlTest';
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import accessibilityTest from '../../../tests/shared/accessibilityTest';
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import { sleep } from '../../../tests/utils';
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const events: Partial<Record<keyof HTMLElementEventMap, (ev: Partial<Event>) => void>> = {};
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class AffixMounter extends React.Component<{
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offsetBottom?: number;
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offsetTop?: number;
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onTestUpdatePosition?(): void;
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onChange?: () => void;
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}> {
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private container: HTMLDivElement;
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public affix: Affix;
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componentDidMount() {
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this.container.addEventListener = jest
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.fn()
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.mockImplementation((event: keyof HTMLElementEventMap, cb: (ev: Partial<Event>) => void) => {
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events[event] = cb;
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});
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}
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getTarget = () => this.container;
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render() {
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return (
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<div
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ref={node => {
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this.container = node!;
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}}
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className="container"
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>
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<Affix
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className="fixed"
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target={this.getTarget}
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ref={ele => {
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this.affix = ele!;
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}}
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{...this.props}
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>
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<Button type="primary">Fixed at the top of container</Button>
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</Affix>
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</div>
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);
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}
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}
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describe('Affix Render', () => {
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rtlTest(Affix);
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accessibilityTest(Affix);
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const domMock = jest.spyOn(HTMLElement.prototype, 'getBoundingClientRect');
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let affixMounterWrapper: ReactWrapper<unknown, unknown, AffixMounter>;
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let affixWrapper: ReactWrapper<AffixProps, AffixState, Affix>;
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const classRect: Record<string, DOMRect> = {
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container: {
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top: 0,
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bottom: 100,
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} as DOMRect,
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};
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beforeAll(() => {
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domMock.mockImplementation(function fn(this: HTMLElement) {
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return (
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classRect[this.className] || {
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top: 0,
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bottom: 0,
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}
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);
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});
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});
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afterAll(() => {
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domMock.mockRestore();
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});
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const movePlaceholder = async (top: number) => {
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classRect.fixed = {
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top,
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bottom: top,
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} as DOMRect;
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if (events.scroll == null) {
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throw new Error('scroll should be set');
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}
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events.scroll({
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type: 'scroll',
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});
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await sleep(20);
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};
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it('Anchor render perfectly', async () => {
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document.body.innerHTML = '<div id="mounter" />';
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affixMounterWrapper = mount(<AffixMounter />, { attachTo: document.getElementById('mounter') });
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await sleep(20);
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await movePlaceholder(0);
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expect(affixMounterWrapper.instance().affix.state.affixStyle).toBeFalsy();
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await movePlaceholder(-100);
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expect(affixMounterWrapper.instance().affix.state.affixStyle).toBeTruthy();
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await movePlaceholder(0);
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expect(affixMounterWrapper.instance().affix.state.affixStyle).toBeFalsy();
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});
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it('support offsetBottom', async () => {
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document.body.innerHTML = '<div id="mounter" />';
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affixMounterWrapper = mount(<AffixMounter offsetBottom={0} />, {
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attachTo: document.getElementById('mounter'),
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});
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await sleep(20);
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await movePlaceholder(300);
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expect(affixMounterWrapper.instance().affix.state.affixStyle).toBeTruthy();
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await movePlaceholder(0);
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expect(affixMounterWrapper.instance().affix.state.affixStyle).toBeFalsy();
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await movePlaceholder(300);
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expect(affixMounterWrapper.instance().affix.state.affixStyle).toBeTruthy();
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});
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it('updatePosition when offsetTop changed', async () => {
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document.body.innerHTML = '<div id="mounter" />';
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const onChange = jest.fn();
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affixMounterWrapper = mount(<AffixMounter offsetTop={0} onChange={onChange} />, {
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attachTo: document.getElementById('mounter'),
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});
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await sleep(20);
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await movePlaceholder(-100);
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expect(onChange).toHaveBeenLastCalledWith(true);
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expect(affixMounterWrapper.instance().affix.state.affixStyle?.top).toBe(0);
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affixMounterWrapper.setProps({
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offsetTop: 10,
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});
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await sleep(20);
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expect(affixMounterWrapper.instance().affix.state.affixStyle?.top).toBe(10);
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});
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describe('updatePosition when target changed', () => {
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it('function change', () => {
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document.body.innerHTML = '<div id="mounter" />';
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const container = document.querySelector('#id') as HTMLDivElement;
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const getTarget = () => container;
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affixWrapper = mount(<Affix target={getTarget}>{null}</Affix>);
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affixWrapper.setProps({ target: () => null });
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expect(affixWrapper.instance().state.status).toBe(0);
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expect(affixWrapper.instance().state.affixStyle).toBe(undefined);
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expect(affixWrapper.instance().state.placeholderStyle).toBe(undefined);
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});
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it('instance change', async () => {
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const getObserverLength = () => Object.keys(getObserverEntities()).length;
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const container = document.createElement('div');
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document.body.appendChild(container);
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let target: HTMLDivElement | null = container;
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const originLength = getObserverLength();
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const getTarget = () => target;
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affixWrapper = mount(<Affix target={getTarget}>{null}</Affix>);
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await sleep(100);
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expect(getObserverLength()).toBe(originLength + 1);
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target = null;
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affixWrapper.setProps({});
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affixWrapper.update();
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await sleep(100);
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expect(getObserverLength()).toBe(originLength);
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});
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});
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describe('updatePosition when size changed', () => {
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it.each([
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{ name: 'inner', index: 0 },
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{ name: 'outer', index: 1 },
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])('inner or outer', async ({ index }) => {
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document.body.innerHTML = '<div id="mounter" />';
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const updateCalled = jest.fn();
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affixMounterWrapper = mount(
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<AffixMounter offsetBottom={0} onTestUpdatePosition={updateCalled} />,
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{
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attachTo: document.getElementById('mounter'),
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},
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);
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await sleep(20);
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await movePlaceholder(300);
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expect(affixMounterWrapper.instance().affix.state.affixStyle).toBeTruthy();
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await sleep(20);
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affixMounterWrapper.update();
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// Mock trigger resize
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updateCalled.mockReset();
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(affixMounterWrapper as any).triggerResize(index);
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await sleep(20);
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expect(updateCalled).toHaveBeenCalled();
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});
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});
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});
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