public void NextMonthCommand_MonthChangedAndEventRised(
DateTime original,
DateTime expected,
int runCommandTime)
{
Mock<IDateTimeService> dateTime = new Mock<IDateTimeService>();
dateTime.Setup(x => x.Now).Returns(original);
var actualEventsAmount = 0;
var lastMonthFromEvent = 0;
var lastYearFromEvent = 0;
var target = new MonthPickerViewModel(dateTime.Object);
target.MonthChanged += (sender, args) =>
{
actualEventsAmount++;
lastMonthFromEvent = args.NewMonth.Month;
lastYearFromEvent = args.NewMonth.Year;
};
for (int i = 0; i < runCommandTime; i++)
{
target.NextMonthCommand.Execute(null);
}
Assert.Equal(expected.Month, target.CurrentDate.Month);
Assert.Equal(expected.Year, target.CurrentDate.Year);
Assert.Equal(runCommandTime, actualEventsAmount);
Assert.Equal(expected.Month, lastMonthFromEvent);
Assert.Equal(expected.Year, lastYearFromEvent);
}
public void Ctor_CurrentDateSet(Mock<IDateTimeService> dateTime)
{
var currentDate = DateTime.Now;
dateTime.Setup(x => x.Now).Returns(currentDate);
var target = new MonthPickerViewModel(dateTime.Object);
Assert.Equal(currentDate.Month, target.CurrentDate.Month);
Assert.Equal(currentDate.ToString("MMMM"), target.CurrentDate.ToString("MMMM"));
Assert.Equal(currentDate.Year, target.CurrentDate.Year);
}
public void NextMonthCommand_MaximumYear_StayOnMaximum()
{
Mock<IDateTimeService> dateTime = new Mock<IDateTimeService>();
dateTime.Setup(x => x.Now).Returns(DateTime.MaxValue);
var actualEventsAmount = 0;
var target = new MonthPickerViewModel(dateTime.Object);
target.MonthChanged += (sender, args) =>
{
actualEventsAmount++;
};
target.NextMonthCommand.Execute(null);
Assert.Equal(DateTime.MaxValue.Month, target.CurrentDate.Month);
Assert.Equal(DateTime.MaxValue.Year, target.CurrentDate.Year);
Assert.Equal(0, actualEventsAmount);
}