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Client.test.js
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Client.test.js
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/**
* @jest-environment node
*/
'use strict';
/* eslint-disable
no-undef
*/
const fs = require('fs');
const { resolve } = require('path');
const testServer = require('../helpers/test-server');
const reloadConfig = require('../fixtures/reload-config/webpack.config');
const runBrowser = require('../helpers/run-browser');
const port = require('../ports-map').Client;
const {
reloadReadyDelay,
completeReloadDelay,
} = require('../helpers/puppeteer-constants');
const cssFilePath = resolve(__dirname, '../fixtures/reload-config/main.css');
describe('reload', () => {
const modes = [
{
title: 'hot with default transportMode.client (sockjs)',
options: {
hot: true,
},
shouldRefresh: false,
},
{
title: 'hot with transportMode.client ws',
options: {
hot: true,
transportMode: 'ws',
},
shouldRefresh: false,
},
{
title: 'inline',
options: {
hot: false,
},
shouldRefresh: true,
},
];
modes.forEach((mode) => {
describe(mode.title, () => {
beforeAll((done) => {
fs.writeFileSync(
cssFilePath,
'body { background-color: rgb(0, 0, 255); }'
);
const options = Object.assign(
{},
{
port,
host: '0.0.0.0',
inline: true,
watchOptions: {
poll: true,
},
},
mode.options
);
testServer.startAwaitingCompilation(reloadConfig, options, done);
});
afterAll((done) => {
fs.unlinkSync(cssFilePath);
testServer.close(done);
});
describe('on browser client', () => {
it(`should reload ${
mode.shouldRefresh ? 'with' : 'without'
} page refresh`, (done) => {
runBrowser().then(({ page, browser }) => {
let refreshed = false;
page.waitForNavigation({ waitUntil: 'load' }).then(() => {
page
.evaluate(() => {
const body = document.body;
const bgColor = getComputedStyle(body)['background-color'];
return bgColor;
})
.then((color) => {
page.setRequestInterception(true).then(() => {
page.on('request', (req) => {
if (
req.isNavigationRequest() &&
req.frame() === page.mainFrame() &&
req.url() === `http://localhost:${port}/main`
) {
refreshed = true;
}
req.continue();
});
page.waitFor(reloadReadyDelay).then(() => {
fs.writeFileSync(
cssFilePath,
'body { background-color: rgb(255, 0, 0); }'
);
page.waitFor(completeReloadDelay).then(() => {
page
.evaluate(() => {
const body = document.body;
const bgColor = getComputedStyle(body)[
'background-color'
];
return bgColor;
})
.then((color2) => {
browser.close().then(() => {
expect(color).toEqual('rgb(0, 0, 255)');
expect(color2).toEqual('rgb(255, 0, 0)');
expect(refreshed).toEqual(mode.shouldRefresh);
done();
});
});
});
});
});
});
});
page.goto(`http://localhost:${port}/main`);
});
});
});
});
});
});