spec/javascripts/image_diff/init_discussion_tab_spec.js


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import initDiscussionTab from '~/image_diff/init_discussion_tab';
import initImageDiffHelper from '~/image_diff/helpers/init_image_diff';

describe('initDiscussionTab', () => {
  beforeEach(() => {
    setFixtures(`
      <div class="timeline-content">
        <div class="diff-file js-image-file"></div>
        <div class="diff-file js-image-file"></div>
      </div>
    `);
  });

  it('should pass canCreateNote as false to initImageDiff', done => {
    spyOn(initImageDiffHelper, 'initImageDiff').and.callFake((diffFileEl, canCreateNote) => {
      expect(canCreateNote).toEqual(false);
      done();
    });

    initDiscussionTab();
  });

  it('should pass renderCommentBadge as true to initImageDiff', done => {
    spyOn(initImageDiffHelper, 'initImageDiff').and.callFake(
      (diffFileEl, canCreateNote, renderCommentBadge) => {
        expect(renderCommentBadge).toEqual(true);
        done();
      },
    );

    initDiscussionTab();
  });

  it('should call initImageDiff for each diffFileEls', () => {
    spyOn(initImageDiffHelper, 'initImageDiff').and.callFake(() => {});
    initDiscussionTab();

    expect(initImageDiffHelper.initImageDiff.calls.count()).toEqual(2);
  });
});