angular-docs-cn/packages/zone.js/test/browser/WebSocket.spec.ts

/**
 * @license
 * Copyright Google LLC All Rights Reserved.
 *
 * Use of this source code is governed by an MIT-style license that can be
 * found in the LICENSE file at https://angular.io/license
 */

import {ifEnvSupports} from '../test-util';
declare const window: any;

const TIMEOUT = 5000;

if (!window['saucelabs']) {
  // sauceLabs does not support WebSockets; skip these tests

  xdescribe('WebSocket', ifEnvSupports('WebSocket', function() {
              let socket: WebSocket;
              const TEST_SERVER_URL = 'ws://localhost:8001';
              const testZone = Zone.current.fork({name: 'test'});


              beforeEach(function(done) {
                socket = new WebSocket(TEST_SERVER_URL);
                socket.addEventListener('open', function() {
                  done();
                });
                socket.addEventListener('error', function() {
                  fail(
                      'Can\'t establish socket to ' + TEST_SERVER_URL +
                      '! do you have test/ws-server.js running?');
                  done();
                });
              }, TIMEOUT);

              afterEach(function(done) {
                socket.addEventListener('close', function() {
                  done();
                });
                socket.close();
              }, TIMEOUT);

              xit('should be patched in a Web Worker', done => {
                const worker = new Worker('/base/test/ws-webworker-context.js');
                worker.onmessage = (e: MessageEvent) => {
                  if (e.data !== 'pass' && e.data !== 'fail') {
                    fail(`web worker ${e.data}`);
                    return;
                  }
                  expect(e.data).toBe('pass');
                  done();
                };
              }, 10000);

              it('should work with addEventListener', function(done) {
                testZone.run(function() {
                  socket.addEventListener('message', function(event) {
                    expect(Zone.current).toBe(testZone);
                    expect(event['data']).toBe('hi');
                    done();
                  });
                });
                socket.send('hi');
              }, TIMEOUT);


              it('should respect removeEventListener', function(done) {
                let log = '';

                function logOnMessage() {
                  log += 'a';

                  expect(log).toEqual('a');

                  socket.removeEventListener('message', logOnMessage);
                  socket.send('hi');

                  setTimeout(function() {
                    expect(log).toEqual('a');
                    done();
                  }, 10);
                }

                socket.addEventListener('message', logOnMessage);
                socket.send('hi');
              }, TIMEOUT);


              it('should work with onmessage', function(done) {
                testZone.run(function() {
                  socket.onmessage = function(contents) {
                    expect(Zone.current).toBe(testZone);
                    expect(contents.data).toBe('hi');
                    done();
                  };
                });
                socket.send('hi');
              }, TIMEOUT);


              it('should only allow one onmessage handler', function(done) {
                let log = '';

                socket.onmessage = function() {
                  log += 'a';
                  expect(log).toEqual('b');
                  done();
                };

                socket.onmessage = function() {
                  log += 'b';
                  expect(log).toEqual('b');
                  done();
                };

                socket.send('hi');
              }, TIMEOUT);


              it('should handler removing onmessage', function(done) {
                let log = '';

                socket.onmessage = function() {
                  log += 'a';
                };

                socket.onmessage = null as any;

                socket.send('hi');

                setTimeout(function() {
                  expect(log).toEqual('');
                  done();
                }, 100);
              }, TIMEOUT);

              it('should have constants', function() {
                expect(Object.keys(WebSocket)).toContain('CONNECTING');
                expect(Object.keys(WebSocket)).toContain('OPEN');
                expect(Object.keys(WebSocket)).toContain('CLOSING');
                expect(Object.keys(WebSocket)).toContain('CLOSED');
              });
            }));
}