How to check that jQuery methods (fadeOut, hide, etc) have been called with Jasmine

Question

I'm trying to clean up my Javascript by employing the same TDD methods that work for me in Ruby, but the jump to Jasmine has been throwing me for a curve.

For a simple example, I'd like to specify that a given element fades out on click:

$('.position-details').live 'click', ->
  $this = $(this)
  $this.fadeOut 'fast', ->
    $this.closest('.fields').find('.position-search').fadeIn('fast').focus()

My specs:

describe "Position picker", ->
  beforeEach ->
    loadFixtures("position_picker.html")
    @details = $('.position-details')
    @picker = $('.position-picker')
    jasmine.Clock.useMock()

  it "the position details are initially shown", ->
    expect(@details).toBeVisible()

  describe "when the position details are clicked", ->
    it "fades out the position details", ->
      @details.trigger('click')
      jasmine.Clock.tick(1000)
      expect(@details).not.toBeVisible()

My fixture:

<div id='position-data' data-positions="[{&quot;value&quot;:35,&quot;label&quot;:&quot;Accountant&quot;,&quot;division&quot;:&quot;North&quot;,&quot;job_class&quot;:&quot;Headquarters&quot;}]"></div>

<div class='position-details'>
  <div class='position-name'></div>
  <br />
</div>

<div class='position-picker'>
  <label>Position<abbr title="required">*</abbr></label>
  <span class="error" />
  <input class="position-search" type="text" />
  <div>
    <input class="position_id" type="text" />
  </div>
</div>

The first spec passes and I'm not sure why the second doesn't. Once I get a few of these under my belt I'm sure it'll feel second nature. Thanks for any help or advice!

Answer 1

Take look at this SO and this blog post

Answer 2

You can use spyOn

check this:

it("fades out the element", function() {
  spyOn($.fn, 'fadeOut');
  fadeOutElem();
  expect($.fn.fadeOut).toHaveBeenCalled();
});

Also you can use a timeout like this:

it("fades out the element", function(done) {
  fadeOutElem();
  setTimeout(300, function() {
    expect($(".position-details").css('display').toEqual('none');
    done();
  });
});