node-jest/scripts/verifyPnP.js

69 lines
1.4 KiB
JavaScript

/**
* Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
'use strict';
const fs = require('fs');
const path = require('path');
const chalk = require('chalk');
const dedent = require('dedent');
const execa = require('execa');
const rimraf = require('rimraf');
const tempy = require('tempy');
const rootDirectory = path.resolve(__dirname, '..');
const cwd = tempy.directory();
try {
fs.writeFileSync(
path.join(cwd, '.yarnrc.yml'),
dedent`
enableGlobalCache: true
yarnPath: ${require.resolve('../.yarn/releases/yarn-2.4.3.cjs')}
`,
);
fs.writeFileSync(
path.join(cwd, 'package.json'),
JSON.stringify(
{
dependencies: {
jest: '*',
},
name: 'test-pnp',
resolutions: {
typescript: '~4.4',
},
},
null,
2,
),
);
fs.writeFileSync(
path.join(cwd, 'test.js'),
dedent`
/*
* @jest-environment jsdom
*/
test('dummy', () => {
expect(window).toBeDefined();
});
`,
);
execa.sync('yarn', ['link', '--private', '--all', rootDirectory], {
cwd,
stdio: 'inherit',
});
execa.sync('yarn', ['jest'], {cwd, stdio: 'inherit'});
console.log(chalk.inverse.green(' Successfully ran Jest with PnP linker '));
} finally {
rimraf.sync(cwd);
}