  // If we did, there wouldn't be a transition!
                            var current = data.transition.computedStyle(data.property);
                            assert_not_equals(current, data.transition.to, "must not be target value after start");
                        },
                        done: function(test, data, options) {
                            // make sure the property's value were neither initial nor target while transitioning
                            test.step(generalParallelTest