c1c3675fc4
You'll probably want to disable whitespace in the diff ## Description This allows for better editor support by using `describe` or functions called `describe` with the same syntax instead of custom names. Changes: - `nextTestSetup` can be used instead of `createNextDescribe` keeping the same behaviour but being called inside a `describe` "block" (not applied everywhere) - `getSnapshotTestDescribe` replaced with a custom `describe.each` - `sandbox` helper function for `acceptance`/`acceptance-app` merged into a single shared one - `outdent` to remove the indent from inline files in tests which helps with consistent snapshots
226 lines
5.3 KiB
TypeScript
226 lines
5.3 KiB
TypeScript
/* eslint-env jest */
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import { sandbox } from 'development-sandbox'
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import { FileRef, nextTestSetup } from 'e2e-utils'
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import path from 'path'
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import { outdent } from 'outdent'
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describe('ReactRefresh', () => {
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const { next } = nextTestSetup({
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files: new FileRef(path.join(__dirname, 'fixtures', 'default-template')),
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skipStart: true,
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})
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test('can edit a component without losing state', async () => {
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const { session, cleanup } = await sandbox(next)
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await session.patch(
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'index.js',
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outdent`
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import { useCallback, useState } from 'react'
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export default function Index() {
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const [count, setCount] = useState(0)
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const increment = useCallback(() => setCount(c => c + 1), [setCount])
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return (
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<main>
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<p>{count}</p>
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<button onClick={increment}>Increment</button>
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</main>
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)
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}
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`
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)
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await session.evaluate(() => document.querySelector('button').click())
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('1')
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await session.patch(
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'index.js',
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outdent`
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import { useCallback, useState } from 'react'
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export default function Index() {
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const [count, setCount] = useState(0)
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const increment = useCallback(() => setCount(c => c + 1), [setCount])
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return (
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<main>
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<p>Count: {count}</p>
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<button onClick={increment}>Increment</button>
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</main>
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)
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}
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`
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)
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('Count: 1')
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await session.evaluate(() => document.querySelector('button').click())
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('Count: 2')
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await cleanup()
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})
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test('cyclic dependencies', async () => {
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const { session, cleanup } = await sandbox(next)
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await session.write(
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'NudgeOverview.js',
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outdent`
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import * as React from 'react';
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import { foo } from './routes';
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const NudgeOverview = () => {
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return <span />;
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foo;
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};
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export default NudgeOverview;
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`
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)
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await session.write(
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'SurveyOverview.js',
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outdent`
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const SurveyOverview = () => {
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return 100;
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};
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export default SurveyOverview;
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`
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)
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await session.write(
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'Milestones.js',
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outdent`
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import React from 'react';
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import { fragment } from './DashboardPage';
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const Milestones = props => {
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return <span />;
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fragment;
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};
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export default Milestones;
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`
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)
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await session.write(
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'DashboardPage.js',
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outdent`
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import React from 'react';
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import Milestones from './Milestones';
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import SurveyOverview from './SurveyOverview';
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import NudgeOverview from './NudgeOverview';
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export const fragment = {};
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const DashboardPage = () => {
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return (
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<>
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<Milestones />
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<SurveyOverview />
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<NudgeOverview />
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</>
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);
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};
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export default DashboardPage;
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`
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)
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await session.write(
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'routes.js',
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outdent`
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import DashboardPage from './DashboardPage';
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export const foo = {};
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console.warn('DashboardPage at import time:', DashboardPage);
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setTimeout(() => console.warn('DashboardPage after:', DashboardPage), 0);
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export default DashboardPage;
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`
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)
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await session.patch(
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'index.js',
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outdent`
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import * as React from 'react';
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import DashboardPage from './routes';
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const HeroApp = (props) => {
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return <p>Hello. {DashboardPage ? <DashboardPage /> : null}</p>;
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};
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export default HeroApp;
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`
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)
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('Hello. 100')
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let didFullRefresh = !(await session.patch(
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'SurveyOverview.js',
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outdent`
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const SurveyOverview = () => {
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return 200;
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};
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export default SurveyOverview;
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`
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))
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('Hello. 200')
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expect(didFullRefresh).toBe(false)
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didFullRefresh = !(await session.patch(
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'index.js',
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outdent`
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import * as React from 'react';
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import DashboardPage from './routes';
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const HeroApp = (props) => {
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return <p>Hello: {DashboardPage ? <DashboardPage /> : null}</p>;
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};
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export default HeroApp;
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`
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))
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('Hello: 200')
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expect(didFullRefresh).toBe(false)
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didFullRefresh = !(await session.patch(
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'SurveyOverview.js',
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outdent`
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const SurveyOverview = () => {
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return 300;
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};
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export default SurveyOverview;
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`
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))
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expect(
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await session.evaluate(() => document.querySelector('p').textContent)
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).toBe('Hello: 300')
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expect(didFullRefresh).toBe(false)
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await cleanup()
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})
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})
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