public void _02_Creer_une_classe_ClockService_qui_renvoit_la_date_courante()
{
ClockService clockService = new ClockService();
Assert.NotNull(clockService);
DateTime now = clockService.Now();
}
public void _04_Creer_une_interface_IClockService_pour_unifier_MockClockService_et_ClockService()
{
IClockService clockService;
DateTime? now;
clockService = new ClockService();
Assert.NotNull(clockService);
now = clockService.Now();
Assert.NotNull(now);
clockService = new MockClockService(DateTime.Now);
Assert.NotNull(clockService);
now = clockService.Now();
Assert.NotNull(now);
}