Can’t get even the simplest AngularJS async test to work with Karma, tried both Jasmine 2.0 and Mocha. It works when I remove the ngMock module() invocation.

async_mocha.spec.js

angular.module('myModule', []);

describe('Async', function() {
  
  beforeEach(function(done) {
    console.log("beforeEach", done);
    module('myModule', function() { // <- hangs here
      console.log("got module");
      setTimeout(function() {
        done();
      }, 100);
    });
  });

  it("should run", function(done) {
    console.log("test", done);
    setTimeout(function() {
      done();
    }, 100);
  });

  afterEach(function(done) {
    console.log("test", done);
    setTimeout(function() {
      done();
    }, 100);
  });

});

output_mocha.log

DEBUG [karma]: All browsers are ready, executing
DEBUG [web-server]: serving: .../node_modules/karma/static/context.html
DEBUG [web-server]: serving (cached): async_mocha.spec.js
LOG: 'beforeEach', function (err){ ... }
Firefox 28.0.0 (Mac OS X 10.9) Async "before each" hook FAILED
	timeout of 2000ms exceeded
	Runnable.prototype.resetTimeout/this.timer<@.../node_modules/mocha/mocha.js:4254
	
LOG: 'test', function (err){ ... }
Firefox 28.0.0 (Mac OS X 10.9): Executed 1 of 1 (1 FAILED) ERROR (2.116 secs / 2.002 secs)

Hmm, maybe I misunderstood the ngMock module() fn.

Yes, subtly. Got it working here: https://gist.github.com/cmlenz/9978669 – although in a "real" example.