'use strict';

describe('PIXI.Container', function ()
{
    describe('parent', function ()
    {
        it('should be present when adding children to Container', function ()
        {
            var container = new PIXI.Container();
            var child = new PIXI.DisplayObject();

            expect(container.children.length).to.be.equals(0);
            container.addChild(child);
            expect(container.children.length).to.be.equals(1);
            expect(child.parent).to.be.equals(container);
        });
    });

    describe('events', function ()
    {
        it('should trigger "added" and "removed" events on it\'s children', function ()
        {
            var container = new PIXI.Container();
            var child = new PIXI.DisplayObject();
            var triggeredAdded = false;
            var triggeredRemoved = false;

            child.on('added', function (to)
            {
                triggeredAdded = true;
                expect(container.children.length).to.be.equals(1);
                expect(child.parent).to.be.equals(to);
            });
            child.on('removed', function (from)
            {
                triggeredRemoved = true;
                expect(container.children.length).to.be.equals(0);
                expect(child.parent).to.be.null;
                expect(container).to.be.equals(from);
            });

            container.addChild(child);
            expect(triggeredAdded).to.be.true;
            expect(triggeredRemoved).to.be.false;

            container.removeChild(child);
            expect(triggeredRemoved).to.be.true;
        });
    });
});