public void Test_AddHours_Ok()
{
LocalTime localTime = new LocalTime(2, 4);
int hoursToAdd = 8;
LocalTime localTimeResult = new LocalTime(10, 4);
Assert.Equal(localTimeResult, localTime.AddHours(hoursToAdd));
localTime = new LocalTime(2, 4);
hoursToAdd = 25;
localTimeResult = new LocalTime(3, 4);
Assert.Equal(localTimeResult, localTime.AddHours(hoursToAdd));
localTime = new LocalTime(16, 4);
hoursToAdd = -4;
localTimeResult = new LocalTime(12, 4);
Assert.Equal(localTimeResult, localTime.AddHours(hoursToAdd));
localTime = new LocalTime(16, 4);
hoursToAdd = -20;
localTimeResult = new LocalTime(20, 4);
Assert.Equal(localTimeResult, localTime.AddHours(hoursToAdd));
localTime = new LocalTime(16, 4);
hoursToAdd = -26;
localTimeResult = new LocalTime(14, 4);
Assert.Equal(localTimeResult, localTime.AddHours(hoursToAdd));
localTime = new LocalTime(16, 4);
hoursToAdd = 0;
localTimeResult = new LocalTime(16, 4);
Assert.Equal(localTimeResult, localTime.AddHours(hoursToAdd));
}