silverstripe-framework/thirdparty/jquery-entwine/spec/spec.entwine.super.js

describe('Entwine', function() {
  
    beforeEach(function() {
        $('body').append('<div id="dom_test"></div>')
    });
    afterEach(function() {
        $('#dom_test').remove()
    });
  
    describe('Super', function() {
        
        beforeEach(function() {
            $.entwine.clear_all_rules() 
            $('#dom_test').html('<div id="a" class="a b c">Foo</div><div id="b" class="c d e">Bar</div>')
        });
        
        it('can call the super function', function() {
            var a = 1;
            $('#a').entwine({
                foo: function() {
                    a *= 2;
                }
            });
            $('#a.a').entwine({
                foo: function() {
                    a += 2;
                    this._super();
                }
            });
            $('#a').foo();
            expect(a).toEqual(6)
        });
        it('super to a non-existant class should be ignored', function() {
            var a = 1;
            $('#a').entwine({
                foo: function() {
                    a *= 2;
                    this._super();
                }
            });
            $('#a.a').entwine({
                foo: function() {
                    a += 2;
                    this._super();
                }
            });
            $('#a').foo();
            expect(a).toEqual(6)
        });
        it('can call super from two different functions without screwing up what super points to', function() {
            var list = [];
            $('#a').entwine({
                foo: function() {
                    list.push('foo');
                    this.bar();
                },
                bar: function() {
                    list.push('bar');
                }
            });
            $('#a.a').entwine({
                foo: function() {
                    list.push('foo2');
                    this._super();
                    list.push('foo2');
                    this._super();
                },
                bar: function() {
                    list.push('bar2');
                    this._super();
                }
            });
            $('#a').foo();
            expect(list).toEqual(['foo2', 'foo', 'bar2', 'bar', 'foo2', 'foo', 'bar2', 'bar'])
        });
        it('can override (and call via super) a non-entwine jquery function', function() {
            var a = 1 
            $('#a').entwine({
                text: function() {
                    a = this._super();
                }
            });
            $('#a').text();
            expect(a).toEqual('Foo') 
            expect($('#b').text()).toEqual('Bar')
        });
    });
});