Code example for Merrick.

spec-one.js

it('should call append', inject($, MyUI, function(jQuery, ui) {
  spyOn(jQuery, 'append');
  ui.render();
  expect(jQuery.append).toHaveBeenCalled();
});

spec-three.js

@Provide($)
function jQueryMock() {
  $.cleanAllState();

  spyOn($, 'append');
  spyOn($, 'html');

  return $;
}

beforeEach(use(jQueryMock));

it('should use mock', inject($, MyUI, function(jQuery, ui) {
  ui.render();
  expect(jQuery.append).toHaveBeenCalled();
});

spec-two.js

it('should mock append before instantiating', function() {
  inject($, function(jQuery) {
    spyOn(jQuery, 'append');
  });
  
  inject($, MyUI, function(jQuery, ui) {
    ui.render();
    expect(jQuery.append).toHaveBeenCalled();
  });
});

Thank you for this gist. Very helpful. :-)