public void WeekTest()
{
DateTime now = ClockProxy.Clock.Now;
DateTime week = Now.Week(now.DayOfWeek);
Assert.Equal(week.Year, now.Year);
Assert.Equal(week.Month, now.Month);
Assert.Equal(week.Day, now.Day);
Assert.Equal(week.DayOfWeek, now.DayOfWeek);
Assert.Equal(0, week.Hour);
Assert.Equal(0, week.Minute);
Assert.Equal(0, week.Second);
Assert.Equal(0, week.Millisecond);
DayOfWeek previousDay = TimeTool.PreviousDay(now.DayOfWeek);
DateTime previousWeek = Now.Week(previousDay);
Assert.Equal(previousWeek.Year, now.AddDays(-1).Year);
Assert.Equal(previousWeek.Month, now.AddDays(-1).Month);
Assert.Equal(previousWeek.Day, now.AddDays(-1).Day);
Assert.Equal(previousWeek.DayOfWeek, previousDay);
Assert.Equal(0, previousWeek.Hour);
Assert.Equal(0, previousWeek.Minute);
Assert.Equal(0, previousWeek.Second);
Assert.Equal(0, previousWeek.Millisecond);
} // WeekTest