| // Copyright 2018 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the 'License'); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an 'AS IS' BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| import 'package:clock/clock.dart'; |
| |
| import 'package:test/test.dart'; |
| |
| import 'utils.dart'; |
| |
| void main() { |
| test('the default clock returns the system time', () { |
| expect(DateTime.now().difference(clock.now()).inMilliseconds.abs(), |
| lessThan(100)); |
| }); |
| |
| group('withClock()', () { |
| group('overrides the clock', () { |
| test('synchronously', () { |
| var time = date(1990, 11, 8); |
| withClock(Clock(() => time), () { |
| expect(clock.now(), equals(time)); |
| time = date(2016, 6, 26); |
| expect(clock.now(), equals(time)); |
| }); |
| }); |
| |
| test('asynchronously', () { |
| var time = date(1990, 11, 8); |
| withClock(Clock.fixed(time), () { |
| expect(Future(() async { |
| expect(clock.now(), equals(time)); |
| }), completes); |
| }); |
| }); |
| |
| test('within another withClock() call', () { |
| var outerTime = date(1990, 11, 8); |
| withClock(Clock.fixed(outerTime), () { |
| expect(clock.now(), equals(outerTime)); |
| |
| var innerTime = date(2016, 11, 8); |
| withClock(Clock.fixed(innerTime), () { |
| expect(clock.now(), equals(innerTime)); |
| expect(Future(() async { |
| expect(clock.now(), equals(innerTime)); |
| }), completes); |
| }); |
| |
| expect(clock.now(), equals(outerTime)); |
| }); |
| }); |
| }); |
| |
| test("with isFinal: true doesn't allow nested calls", () { |
| var outerTime = date(1990, 11, 8); |
| withClock(Clock.fixed(outerTime), () { |
| expect(clock.now(), equals(outerTime)); |
| |
| expect(() => withClock(fixed(2016, 11, 8), neverCalledVoid), |
| throwsStateError); |
| |
| expect(clock.now(), equals(outerTime)); |
| // ignore: deprecated_member_use_from_same_package |
| }, isFinal: true); |
| }); |
| }); |
| } |
| |
| /// A wrapper for [neverCalled] that works around sdk#33015. |
| void Function() get neverCalledVoid { |
| var function = neverCalled; |
| return () => function(); |
| } |