public void SecondTest() { DurationUtil.Second.Should().Be(TimeSpan.FromSeconds(1)); DurationUtil.Seconds(0).Should().Be(TimeSpan.Zero); DurationUtil.Seconds(1).Should().Be(TimeSpan.FromSeconds(1)); DurationUtil.Seconds(2).Should().Be(TimeSpan.FromSeconds(2)); DurationUtil.Seconds(-1).Should().Be(TimeSpan.FromSeconds(-1)); DurationUtil.Seconds(-2).Should().Be(TimeSpan.FromSeconds(-2)); DurationUtil.Seconds(18).Should().Be(new TimeSpan(0, 0, 0, 18)); DurationUtil.Seconds(18, 496).Should().Be(new TimeSpan(0, 0, 0, 18, 496)); }