public void can_set_a_qually_time()
{
TimeSpan time;
var model = new QuallyTimesModel();
time = TimeSpan.FromSeconds(1d);
model.SetTime(1, time);
Assert.Equal(time, model.Q1);
model.SetTime(1, null);
Assert.Null(model.Q1);
time = TimeSpan.FromSeconds(2d);
model.SetTime(2, time);
Assert.Equal(time, model.Q2);
model.SetTime(2, null);
Assert.Null(model.Q2);
time = TimeSpan.FromSeconds(3d);
model.SetTime(3, time);
Assert.Equal(time, model.Q3);
model.SetTime(3, null);
Assert.Null(model.Q3);
}