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fix: live reload port fallback if port is used (#899)

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* Move start reload server into separate module

* Find an unused port when starting the live reload server

* Move findUnusedPort into module

* Add tests for findUnusedPort module

* Refactor findUnusedPort

* Move starting of servers into separate module and add tests

* Remove unused constants.js

* Zap extra line breaks

* Add tests for liveReloadServer

* Rename serverController to start

* Move start into lib/server

* Add portfinder package

* Replace findUnusedPort with portfinder

* nits
This commit is contained in:
Tom Auger 2018-09-12 19:03:52 +01:00 • committed by Endilie Yacop Sucipto
parent c4740f7af2
commit bbef20d345
10 changed files with 291 additions and 84 deletions
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26
lib/server/__tests__/liveReloadServer.test.js Normal file
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/**
* Copyright (c) 2017-present, Facebook, Inc.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/
jest.mock('gaze');
jest.mock('../readMetadata.js');
jest.mock('tiny-lr');
// When running Jest the siteConfig import fails because siteConfig doesn't exist
// relative to the cwd of the tests. Rather than mocking out cwd just mock
// siteConfig virtually.
jest.mock(`${process.cwd()}/siteConfig.js`, () => jest.fn(), {virtual: true});
const liveReloadServer = require('../liveReloadServer.js');
describe('get reload script', () => {
test('when server started, returns url with correct port', () => {
const port = 1234;
liveReloadServer.start(port);
const expectedUrl = `http://localhost:${port}/livereload.js`;
expect(liveReloadServer.getReloadScriptUrl()).toBe(expectedUrl);
});
});