public void TestThatWhenGenerosityChangesThenTipIsRecalculated()
{
// Arrange
base.ClearAll();
var mockTipService = new Mock<ITipService>();
mockTipService.Setup(t => t.Calc(It.IsAny<double>(), It.IsAny<int>()))
.Returns(37.0);
var firstViewModel = new FirstViewModel(mockTipService.Object);
// Act
firstViewModel.Generosity = 12;
// Assert
Assert.AreEqual(37.0, firstViewModel.Tip);
}
public void TestThatWhenTipIsRecalculatedThenTipNotificationIsSent()
{
// Arrange
base.ClearAll();
var mockTipService = new Mock<ITipService>();
mockTipService.Setup(t => t.Calc(It.IsAny<double>(), It.IsAny<int>()))
.Returns(19.0);
var mockDispatcher = new MockDispatcher();
Ioc.RegisterSingleton<IMvxViewDispatcher>(mockDispatcher);
Ioc.RegisterSingleton<IMvxMainThreadDispatcher>(mockDispatcher);
var tipChangeCount = 0;
var generosityChangeCount = 0;
var subTotalChangeCount = 0;
var firstViewModel = new FirstViewModel(mockTipService.Object);
firstViewModel.PropertyChanged += (sender, args) =>
{
switch (args.PropertyName)
{
case "Tip":
tipChangeCount++;
break;
case "SubTotal":
subTotalChangeCount++;
break;
case "Generosity":
generosityChangeCount++;
break;
}
};
// Act
firstViewModel.Generosity = 12;
// Assert
Assert.AreEqual(1, tipChangeCount);
Assert.AreEqual(0, subTotalChangeCount);
Assert.AreEqual(1, generosityChangeCount);
}
public void TestThatPayCommandShowsPayViewModelWithCorrectTotal()
{
// Arrange
base.ClearAll();
var mockTipService = new Mock<ITipService>();
mockTipService.Setup(t => t.Calc(It.IsAny<double>(), It.IsAny<int>()))
.Returns(19.0);
var mockDispatcher = new MockDispatcher();
Ioc.RegisterSingleton<IMvxViewDispatcher>(mockDispatcher);
Ioc.RegisterSingleton<IMvxMainThreadDispatcher>(mockDispatcher);
var firstViewModel = new FirstViewModel(mockTipService.Object);
firstViewModel.SubTotal = 10;
firstViewModel.Generosity = 12;
// Act
firstViewModel.PayCommand.Execute(null);
// Assert
Assert.AreEqual(1, mockDispatcher.Requests.Count);
var request = mockDispatcher.Requests[0];
Assert.AreEqual(typeof(PayViewModel), request.ViewModelType);
Assert.AreEqual("29", request.ParameterValues["total"]);
}
