// Copyright 2014 The Flutter Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. import 'package:flutter/physics.dart'; import 'package:flutter_test/flutter_test.dart'; void main() { test('gravity simulation', () { expect(GravitySimulation(9.81, 10.0, 0.0, 0.0), hasOneLineDescription); expect(GravitySimulation(9.81, 10.0, 0.0, 0.0).x(10.0), moreOrLessEquals(50.0 * 9.81 + 10.0)); }); }