david david - 1 year ago 216
AngularJS Question

using Http on angular 2 unit tests

I'm using this seed project: https://github.com/juliemr/ng2-test-seed that was recently updated to RC5 of angular.

I want to use the Http component in unit test so I did the following:

In package.json I added to dependencies:

"@angular/http": "2.0.0-rc.5",

In src/test/user-service_test.ts I added:

import { HttpModule, Http } from '@angular/http';

and modified the beforeEach function to include HttpModule:

beforeEach(() => {
providers: [LoginService, UserService, HttpModule]

Now, as soon as I add the HttpModule in the beforeEach function and try to execute the test I got this error:

13 08 2016 09:13:27.609:WARN [web-server]: 404: /base/node_modules/@angular/http
Missing error handler on `socket`.
TypeError: (msg || "").replace is not a function
at /home/david/Workspace/ng2-seed/node_modules/karma/lib/reporter.js:45:23
at onBrowserError (/home/david/Workspace/ng2-seed/node_modules/karma/lib/reporters/base.js:58:60)
at null.<anonymous> (/home/david/Workspace/ng2-seed/node_modules/karma/lib/events.js:13:22)
at emitTwo (events.js:87:13)
at emit (events.js:172:7)
at onKarmaError (/home/david/Workspace/ng2-seed/node_modules/karma/lib/browser.js:95:13)
at Socket.<anonymous> (/home/david/Workspace/ng2-seed/node_modules/karma/lib/events.js:13:22)
at emitOne (events.js:82:20)
at Socket.emit (events.js:169:7)
at Socket.onevent (/home/david/Workspace/ng2-seed/node_modules/socket.io/lib/socket.js:335:8)
at Socket.onpacket (/home/david/Workspace/ng2-seed/node_modules/socket.io/lib/socket.js:295:12)
at Client.ondecoded (/home/david/Workspace/ng2-seed/node_modules/socket.io/lib/client.js:193:14)
at Decoder.Emitter.emit (/home/david/Workspace/ng2-seed/node_modules/component-emitter/index.js:134:20)
at Decoder.add (/home/david/Workspace/ng2-seed/node_modules/socket.io-parser/index.js:247:12)
at Client.ondata (/home/david/Workspace/ng2-seed/node_modules/socket.io/lib/client.js:175:18)
at emitOne (events.js:77:13)

I'm still not using the Http component in a "it" function, does someone know how to use Http on a unit test on Rc5? I need to reach my server services.

Answer Source

TestBed.configureTestingModule expects module definition object as an argument. According to the manual, imported modules are listed as imports property, it should be

  imports: [HttpModule],
  providers: [LoginService, UserService]