[javascript] How do I mock a service that returns promise in AngularJS Jasmine unit test?

I found that useful, stabbing service function as sinon.stub().returns($q.when({})):

this.myService = {
   myFunction: sinon.stub().returns( $q.when( {} ) )
};

this.scope = $rootScope.$new();
this.angularStubs = {
    myService: this.myService,
    $scope: this.scope
};
this.ctrl = $controller( require( 'app/bla/bla.controller' ), this.angularStubs );

controller:

this.someMethod = function(someObj) {
   myService.myFunction( someObj ).then( function() {
        someObj.loaded = 'bla-bla';
   }, function() {
        // failure
   } );   
};

and test

const obj = {
    field: 'value'
};
this.ctrl.someMethod( obj );

this.scope.$digest();

expect( this.myService.myFunction ).toHaveBeenCalled();
expect( obj.loaded ).toEqual( 'bla-bla' );

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