Writing Karma + Mocha tests with both dependency injection and `done`?

Question

What's the most elegant way to write Karma unit tests in mocha that both have dependency injection and done?

Dependency injection:

describe('cows', function(){
  it('farts a lot', inject(function(cow){
    // do stuff
  }))
})

Done:

describe('cows', function(){
  it('farts a lot', function(done){
    // do stuff
  })
})

What if I want both cow and done available in my unit test? Right now, this is what I'm doing, and it's unsatisfactory.

beforeEach(inject(function(cow){
  this.cow = cow;
}))

it('farts a lot', function(done){
  this.cow // etc
})

Answer 1

You can nested function inject into test function

it("should nested inject function into test function", function(done) {
    inject(function($timeout) {

      $timeout(function() {
        expect(true).toBeTruthy();
        done();
      }, 10);

      $timeout.flush(10);

    });    
  });

inject is global function defined in ngMock module and can be used anywhere in the test.