parent
b69df8d8e7
commit
ace9f5bdbf
@ -0,0 +1,39 @@
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import angular from 'angular'
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import 'angular-mocks'
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import {render, fireEvent} from '../'
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beforeEach(() => {
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angular.module('atl', [])
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angular.mock.module('atl')
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})
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test('`fireEvent` triggers a digest', () => {
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angular.module('atl').component('atlDigest', {
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template: `
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<button ng-ref="$ctrl.btn">
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Click Me
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</button>
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<div ng-if="$ctrl.wasClicked">
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Clicked!
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</div>
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`,
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controller: class {
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wasClicked = false
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btn = null
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$postLink() {
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this.btn.on('click', this.handleClick)
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}
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handleClick = () => {
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this.wasClicked = true
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}
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},
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})
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const {getByRole, queryByText} = render(`<atl-digest></atl-digest>`)
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const button = getByRole('button')
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expect(queryByText('Clicked!')).toBeNull()
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fireEvent.click(button)
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expect(queryByText('Clicked!')).not.toBeNull()
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})
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@ -1,135 +0,0 @@
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import React from 'react'
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import ReactDOM from 'react-dom'
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import * as testUtils from 'react-dom/test-utils'
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const reactAct = testUtils.act
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const actSupported = reactAct !== undefined
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// act is supported react-dom@16.8.0
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// so for versions that don't have act from test utils
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// we do this little polyfill. No warnings, but it's
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// better than nothing.
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function actPolyfill(cb) {
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ReactDOM.unstable_batchedUpdates(cb)
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ReactDOM.render(<div />, document.createElement('div'))
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}
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const act = reactAct || actPolyfill
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let youHaveBeenWarned = false
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let isAsyncActSupported = null
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function asyncAct(cb) {
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if (actSupported === true) {
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if (isAsyncActSupported === null) {
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return new Promise((resolve, reject) => {
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// patch console.error here
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const originalConsoleError = console.error
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console.error = function error(...args) {
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/* if console.error fired *with that specific message* */
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/* istanbul ignore next */
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const firstArgIsString = typeof args[0] === 'string'
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if (
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firstArgIsString &&
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args[0].indexOf(
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'Warning: Do not await the result of calling ReactTestUtils.act',
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) === 0
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) {
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// v16.8.6
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isAsyncActSupported = false
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} else if (
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firstArgIsString &&
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args[0].indexOf(
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'Warning: The callback passed to ReactTestUtils.act(...) function must not return anything',
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) === 0
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) {
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// no-op
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} else {
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originalConsoleError.apply(console, args)
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}
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}
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let cbReturn, result
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try {
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result = reactAct(() => {
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cbReturn = cb()
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return cbReturn
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})
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} catch (err) {
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console.error = originalConsoleError
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reject(err)
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return
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}
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result.then(
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() => {
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console.error = originalConsoleError
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// if it got here, it means async act is supported
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isAsyncActSupported = true
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resolve()
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},
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err => {
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console.error = originalConsoleError
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isAsyncActSupported = true
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reject(err)
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},
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)
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// 16.8.6's act().then() doesn't call a resolve handler, so we need to manually flush here, sigh
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if (isAsyncActSupported === false) {
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console.error = originalConsoleError
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/* istanbul ignore next */
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if (!youHaveBeenWarned) {
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// if act is supported and async act isn't and they're trying to use async
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// act, then they need to upgrade from 16.8 to 16.9.
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// This is a seemless upgrade, so we'll add a warning
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console.error(
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`It looks like you're using a version of react-dom that supports the "act" function, but not an awaitable version of "act" which you will need. Please upgrade to at least react-dom@16.9.0 to remove this warning.`,
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)
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youHaveBeenWarned = true
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}
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cbReturn.then(() => {
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// a faux-version.
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// todo - copy https://github.com/facebook/react/blob/master/packages/shared/enqueueTask.js
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Promise.resolve().then(() => {
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// use sync act to flush effects
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act(() => {})
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resolve()
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})
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}, reject)
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}
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})
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} else if (isAsyncActSupported === false) {
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// use the polyfill directly
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let result
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act(() => {
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result = cb()
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})
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return result.then(() => {
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return Promise.resolve().then(() => {
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// use sync act to flush effects
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act(() => {})
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})
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})
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}
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// all good! regular act
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return act(cb)
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}
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// use the polyfill
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let result
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act(() => {
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result = cb()
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})
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return result.then(() => {
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return Promise.resolve().then(() => {
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// use sync act to flush effects
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act(() => {})
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})
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})
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}
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export default act
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export {asyncAct}
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/* eslint no-console:0 */
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