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Util.test.js
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Util.test.js
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'use strict';
const EventEmitter = require('events');
const assert = require('assert');
const webpack = require('webpack');
const internalIp = require('internal-ip');
const Server = require('../lib/Server');
const createDomain = require('../lib/utils/createDomain');
const findPort = require('../lib/utils/findPort');
const config = require('./fixtures/simple-config/webpack.config');
describe('check utility functions', () => {
let compiler;
let server;
beforeAll(() => {
compiler = webpack(config);
});
afterEach((done) => {
server.close(() => {
done();
});
});
const tests = [
{
name: 'default',
options: {
host: 'localhost',
port: 8080,
},
expected: 'http://localhost:8080',
},
{
name: 'https',
options: {
host: 'localhost',
port: 8080,
https: true,
},
expected: 'https://localhost:8080',
timeout: 60000,
},
{
name: 'override with public',
options: {
host: 'localhost',
port: 8080,
public: 'myhost.test',
},
expected: 'http://myhost.test',
},
{
name: 'override with public (port)',
options: {
host: 'localhost',
port: 8080,
public: 'myhost.test:9090',
},
expected: 'http://myhost.test:9090',
},
{
name: 'override with public (protocol)',
options: {
host: 'localhost',
port: 8080,
public: 'https://myhost.test',
},
expected: 'https://myhost.test',
},
{
name: 'override with public (protocol + port)',
options: {
host: 'localhost',
port: 8080,
public: 'https://myhost.test:9090',
},
expected: 'https://myhost.test:9090',
},
{
name: 'localIp',
options: {
useLocalIp: true,
port: 8080,
},
expected: `http://${internalIp.v4.sync() || 'localhost'}:8080`,
},
];
tests.forEach((test) => {
it(`test createDomain '${test.name}'`, (done) => {
const { options, expected } = test;
server = new Server(compiler, options);
server.listen(options.port, options.host, (err) => {
if (err) {
done(err);
}
const domain = createDomain(options, server.listeningApp);
if (domain !== expected) {
done(`generated domain ${domain} doesn't match expected ${expected}`);
} else {
done();
}
});
});
});
});
describe('findPort cli utility function', () => {
let mockServer = null;
beforeEach(() => {
mockServer = {
listeningApp: new EventEmitter(),
};
});
afterEach(() => {
mockServer.listeningApp.removeAllListeners('error');
mockServer = null;
});
it('should find empty port starting from defaultPort', (done) => {
findPort(mockServer, 8180, 3, (err, port) => {
assert(err == null);
assert(port === 8180);
done();
});
});
it('should retry finding port for up to defaultPortRetry times', (done) => {
let count = 0;
const defaultPortRetry = 5;
findPort(mockServer, 8180, defaultPortRetry, (err) => {
if (err == null) {
count += 1;
const mockError = new Error('EADDRINUSE');
mockError.code = 'EADDRINUSE';
mockServer.listeningApp.emit('error', mockError);
return;
}
assert(count === defaultPortRetry);
done();
});
});
});