| // Copyright 2013 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. |
| |
| library quiver.time.clock_test; |
| |
| import 'package:unittest/unittest.dart'; |
| import 'package:quiver/time.dart'; |
| |
| main() { |
| group('clock', () { |
| var subject = new Clock.fixed(new DateTime(2013)); |
| |
| test("should return a non-null value from system clock", () { |
| expect(new Clock().now(), isNotNull); |
| expect(SYSTEM_CLOCK.now(), isNotNull); |
| }); |
| |
| // This test may be flaky on certain systems. I ran it over 10 million |
| // cycles on my machine without any failures, but that's no guarantee. |
| test("should be close enough to system clock", () { |
| // I picked 2ms because 1ms was starting to get flaky. |
| var epsilon = 2; |
| expect(new DateTime.now().difference( |
| new Clock().now()).inMilliseconds.abs(), |
| lessThan(epsilon)); |
| expect(new DateTime.now().difference( |
| SYSTEM_CLOCK.now()).inMilliseconds.abs(), |
| lessThan(epsilon)); |
| }); |
| |
| test("should return time provided by custom TimeFunction", () { |
| var time = new DateTime(2013); |
| var fixedClock = new Clock(() => time); |
| expect(fixedClock.now(), new DateTime(2013)); |
| |
| time = new DateTime(2014); |
| expect(fixedClock.now(), new DateTime(2014)); |
| }); |
| |
| test("should return fixed time", () { |
| expect(new Clock.fixed(new DateTime(2013)).now(), new DateTime(2013)); |
| }); |
| |
| test("should return time Duration ago", () { |
| expect(subject.agoBy(new Duration(days: 366)), new DateTime(2012)); |
| }); |
| |
| test("should return time Duration from now", () { |
| expect(subject.fromNowBy(new Duration(days: 365)), new DateTime(2014)); |
| }); |
| |
| test("should return time parts ago", () { |
| expect(subject.ago( |
| days: 1, |
| hours: 1, |
| minutes: 1, |
| seconds: 1, |
| milliseconds: 1, |
| microseconds: 1000), new DateTime(2012, 12, 30, 22, 58, 58, 998)); |
| }); |
| |
| test("should return time parts from now", () { |
| expect(subject.fromNow( |
| days: 1, |
| hours: 1, |
| minutes: 1, |
| seconds: 1, |
| milliseconds: 1, |
| microseconds: 1000), new DateTime(2013, 1, 2, 1, 1, 1, 2)); |
| }); |
| |
| test("should return time micros ago", () { |
| expect(subject.microsAgo(1000), |
| new DateTime(2012, 12, 31, 23, 59, 59, 999)); |
| }); |
| |
| test("should return time micros from now", () { |
| expect(subject.microsFromNow(1000), |
| new DateTime(2013, 1, 1, 0, 0, 0, 1)); |
| }); |
| |
| test("should return time millis ago", () { |
| expect(subject.millisAgo(1000), |
| new DateTime(2012, 12, 31, 23, 59, 59, 000)); |
| }); |
| |
| test("should return time millis from now", () { |
| expect(subject.millisFromNow(3), |
| new DateTime(2013, 1, 1, 0, 0, 0, 3)); |
| }); |
| |
| test("should return time seconds ago", () { |
| expect(subject.secondsAgo(10), |
| new DateTime(2012, 12, 31, 23, 59, 50, 000)); |
| }); |
| |
| test("should return time seconds from now", () { |
| expect(subject.secondsFromNow(3), |
| new DateTime(2013, 1, 1, 0, 0, 3, 0)); |
| }); |
| |
| test("should return time minutes ago", () { |
| expect(subject.minutesAgo(10), |
| new DateTime(2012, 12, 31, 23, 50, 0, 000)); |
| }); |
| |
| test("should return time minutes from now", () { |
| expect(subject.minutesFromNow(3), |
| new DateTime(2013, 1, 1, 0, 3, 0, 0)); |
| }); |
| |
| test("should return time hours ago", () { |
| expect(subject.hoursAgo(10), |
| new DateTime(2012, 12, 31, 14, 0, 0, 000)); |
| }); |
| |
| test("should return time hours from now", () { |
| expect(subject.hoursFromNow(3), |
| new DateTime(2013, 1, 1, 3, 0, 0, 0)); |
| }); |
| |
| test("should return time days ago", () { |
| expect(subject.daysAgo(10), |
| new DateTime(2012, 12, 22, 0, 0, 0, 000)); |
| }); |
| |
| test("should return time days from now", () { |
| expect(subject.daysFromNow(3), |
| new DateTime(2013, 1, 4, 0, 0, 0, 0)); |
| }); |
| |
| test("should return time months ago on the same date", () { |
| expect(subject.monthsAgo(1), |
| new DateTime(2012, 12, 1, 0, 0, 0, 000)); |
| expect(subject.monthsAgo(2), |
| new DateTime(2012, 11, 1, 0, 0, 0, 000)); |
| expect(subject.monthsAgo(3), |
| new DateTime(2012, 10, 1, 0, 0, 0, 000)); |
| expect(subject.monthsAgo(4), |
| new DateTime(2012, 9, 1, 0, 0, 0, 000)); |
| }); |
| |
| test("should return time months from now on the same date", () { |
| expect(subject.monthsFromNow(1), |
| new DateTime(2013, 2, 1, 0, 0, 0, 0)); |
| expect(subject.monthsFromNow(2), |
| new DateTime(2013, 3, 1, 0, 0, 0, 0)); |
| expect(subject.monthsFromNow(3), |
| new DateTime(2013, 4, 1, 0, 0, 0, 0)); |
| expect(subject.monthsFromNow(4), |
| new DateTime(2013, 5, 1, 0, 0, 0, 0)); |
| }); |
| |
| test("should return time years ago on the same date", () { |
| expect(subject.yearsAgo(1), |
| new DateTime(2012, 1, 1, 0, 0, 0, 000)); // leap year |
| expect(subject.yearsAgo(2), |
| new DateTime(2011, 1, 1, 0, 0, 0, 000)); |
| expect(subject.yearsAgo(3), |
| new DateTime(2010, 1, 1, 0, 0, 0, 000)); |
| expect(subject.yearsAgo(4), |
| new DateTime(2009, 1, 1, 0, 0, 0, 000)); |
| expect(subject.yearsAgo(5), |
| new DateTime(2008, 1, 1, 0, 0, 0, 000)); // leap year |
| expect(subject.yearsAgo(6), |
| new DateTime(2007, 1, 1, 0, 0, 0, 000)); |
| expect(subject.yearsAgo(30), |
| new DateTime(1983, 1, 1, 0, 0, 0, 000)); |
| expect(subject.yearsAgo(2013), |
| new DateTime(0, 1, 1, 0, 0, 0, 000)); |
| }); |
| |
| test("should return time years from now on the same date", () { |
| expect(subject.yearsFromNow(1), |
| new DateTime(2014, 1, 1, 0, 0, 0, 0)); |
| expect(subject.yearsFromNow(2), |
| new DateTime(2015, 1, 1, 0, 0, 0, 0)); |
| expect(subject.yearsFromNow(3), |
| new DateTime(2016, 1, 1, 0, 0, 0, 0)); |
| expect(subject.yearsFromNow(4), |
| new DateTime(2017, 1, 1, 0, 0, 0, 0)); |
| expect(subject.yearsFromNow(5), |
| new DateTime(2018, 1, 1, 0, 0, 0, 0)); |
| expect(subject.yearsFromNow(6), |
| new DateTime(2019, 1, 1, 0, 0, 0, 0)); |
| expect(subject.yearsFromNow(30), |
| new DateTime(2043, 1, 1, 0, 0, 0, 0)); |
| expect(subject.yearsFromNow(1000), |
| new DateTime(3013, 1, 1, 0, 0, 0, 0)); |
| }); |
| |
| }); |
| } |