describe('tests from angular.js jqLite', function() {
  var jqLite;
  var a, b, c;
  beforeEach(function() {
    jqLite = angular.element;
    a = jqLite('<div>A</div>')[0];
    b = jqLite('<div>B</div>')[0];
    c = jqLite('<div>C</div>')[0];
  });

  describe('class', function() {

    // classList changes do not support svg elements!
    /*
    it('should properly do  with SVG elements', function() {
      // this is a jqLite & SVG only test
      if (!window.SVGElement) return;
      var svg = jqLite('<svg><rect></rect></svg>');
      var rect = svg.children();

      expect(rect.hasClass('foo-class')).toBe(false);
      rect.addClass('foo-class');
      expect(rect.hasClass('foo-class')).toBe(true);
      rect.removeClass('foo-class');
      expect(rect.hasClass('foo-class')).toBe(false);
    });
    */


    it('should ignore comment elements', function() {
      var comment = jqLite(document.createComment('something'));

      comment.addClass('whatever');
      comment.hasClass('whatever');
      comment.toggleClass('whatever');
      comment.removeClass('whatever');
    });


    describe('hasClass', function() {
      it('should check class', function() {
        var selector = jqLite([a, b]);
        expect(selector.hasClass('abc')).toEqual(false);
      });


      it('should make sure that partial class is not checked as a subset', function() {
        var selector = jqLite([a, b]);
        selector.addClass('a');
        selector.addClass('b');
        selector.addClass('c');
        expect(selector.addClass('abc')).toEqual(selector);
        expect(selector.removeClass('abc')).toEqual(selector);
        expect(jqLite(a).hasClass('abc')).toEqual(false);
        expect(jqLite(b).hasClass('abc')).toEqual(false);
        expect(jqLite(a).hasClass('a')).toEqual(true);
        expect(jqLite(a).hasClass('b')).toEqual(true);
        expect(jqLite(a).hasClass('c')).toEqual(true);
      });
    });


    describe('addClass', function() {
      it('should allow adding of class', function() {
        var selector = jqLite([a, b]);
        expect(selector.addClass('abc')).toEqual(selector);
        expect(jqLite(a).hasClass('abc')).toEqual(true);
        expect(jqLite(b).hasClass('abc')).toEqual(true);
      });


      it('should ignore falsy values', function() {
        var jqA = jqLite(a);
        expect(jqA[0].className).toBe('');

        jqA.addClass(undefined);
        expect(jqA[0].className).toBe('');

        jqA.addClass(null);
        expect(jqA[0].className).toBe('');

        jqA.addClass(false);
        expect(jqA[0].className).toBe('');
      });


      it('should allow multiple classes to be added in a single string', function() {
        var jqA = jqLite(a);
        expect(a.className).toBe('');

        jqA.addClass('foo bar baz');
        expect(a.className).toBe('foo bar baz');
      });


      it('should not add duplicate classes', function() {
        var jqA = jqLite(a);
        expect(a.className).toBe('');

        a.className = 'foo';
        jqA.addClass('foo');
        expect(a.className).toBe('foo');

        jqA.addClass('bar foo baz');
        expect(a.className).toBe('foo bar baz');
      });
    });


    describe('toggleClass', function() {
      it('should allow toggling of class', function() {
        var selector = jqLite([a, b]);
        expect(selector.toggleClass('abc')).toEqual(selector);
        expect(jqLite(a).hasClass('abc')).toEqual(true);
        expect(jqLite(b).hasClass('abc')).toEqual(true);

        expect(selector.toggleClass('abc')).toEqual(selector);
        expect(jqLite(a).hasClass('abc')).toEqual(false);
        expect(jqLite(b).hasClass('abc')).toEqual(false);

        expect(selector.toggleClass('abc'), true).toEqual(selector);
        expect(jqLite(a).hasClass('abc')).toEqual(true);
        expect(jqLite(b).hasClass('abc')).toEqual(true);

        expect(selector.toggleClass('abc'), false).toEqual(selector);
        expect(jqLite(a).hasClass('abc')).toEqual(false);
        expect(jqLite(b).hasClass('abc')).toEqual(false);

      });
    });


    describe('removeClass', function() {
      it('should allow removal of class', function() {
        var selector = jqLite([a, b]);
        expect(selector.addClass('abc')).toEqual(selector);
        expect(selector.removeClass('abc')).toEqual(selector);
        expect(jqLite(a).hasClass('abc')).toEqual(false);
        expect(jqLite(b).hasClass('abc')).toEqual(false);
      });


      it('should correctly remove middle class', function() {
        var element = jqLite('<div class="foo bar baz"></div>');
        expect(element.hasClass('bar')).toBe(true);

        element.removeClass('bar');

        expect(element.hasClass('foo')).toBe(true);
        expect(element.hasClass('bar')).toBe(false);
        expect(element.hasClass('baz')).toBe(true);
      });


      it('should remove multiple classes specified as one string', function() {
        var jqA = jqLite(a);

        a.className = 'foo bar baz';
        jqA.removeClass('foo baz noexistent');
        expect(a.className).toBe('bar');
      });
    });
  });
});