Function callback

test/unit/collection.js:133–136

(_obj)

    collection.add(obj2, obj, obj3);
    assert.ok(typeof collection.forEachObject === 'function', 'has forEachObject method');
    var callback = function(_obj) {
      _obj.prop = true;
      fired++;
    };
    collection.forEachObject(callback);
    assert.equal(fired, collection._objects.length, 'fired once for every object');
    assert.equal(obj.prop, true, 'fired for obj');