public void ModelIsChanged_ViewModelRaisesNotifications()
{
var simpleModel = new SimpleEditableModel();
var mockMessageService = new FakeMessageService();
var rootObject = CreateRootObject();
var screenObjectViewModel = new TestEditableScreenSimpleObjectViewModel(mockMessageService, simpleModel);
bool wasDirtyRaised = false, wasCancelChangesRaised = false;
screenObjectViewModel.PropertyChanged += (sender, args) =>
{
switch (args.PropertyName)
{
case "IsDirty":
wasDirtyRaised = true;
break;
case "CanCancelChanges":
wasCancelChangesRaised = true;
break;
}
};
rootObject.ActivateItem(screenObjectViewModel);
simpleModel.Name = DataGenerator.ValidName;
wasDirtyRaised.Should().BeTrue();
wasCancelChangesRaised.Should().BeTrue();
}
public void ModelIsNotChanged_WhenViewModelIsClosed_MessageBoxIsNotDisplayed()
{
var simpleModel = new SimpleEditableModel();
var mockMessageService = new FakeMessageService();
var rootObject = CreateRootObject();
var screenObjectViewModel = new TestEditableScreenSimpleObjectViewModel(mockMessageService, simpleModel);
rootObject.ActivateItem(screenObjectViewModel);
screenObjectViewModel.CloseCommand.Execute(null);
var wasCalled = mockMessageService.WasCalled;
wasCalled.Should().BeFalse();
}
public void ModelIsChanged_WhenViewModelIsClosedAndMessageResultIsNo_ThenOnChangesCancelingIsCalled()
{
string initialValue = string.Empty;
var simpleModel = new SimpleEditableModel(initialValue, 20);
var stubMessageService = new FakeMessageService();
stubMessageService.SetMessageResult(MessageResult.No);
RegisterInstance <IMessageService>(stubMessageService);
var rootObject = CreateRootObject();
var screenObjectViewModel = new TestEditableScreenSimpleObjectViewModel(stubMessageService, simpleModel);
rootObject.ActivateItem(screenObjectViewModel);
simpleModel.Name = DataGenerator.ValidName;
screenObjectViewModel.CloseCommand.Execute(null);
var wasCalled = screenObjectViewModel.WasCancelingChangesCalled;
wasCalled.Should().BeTrue();
}
public void ModelIsChanged_WhenViewModelIsClosedAndMessageResultIsYes_ModelIsSaved()
{
var simpleModel = new SimpleEditableModel();
var stubMessageService = new FakeMessageService();
stubMessageService.SetMessageResult(MessageResult.Yes);
var rootObject = CreateRootObject();
var screenObjectViewModel = new TestEditableScreenSimpleObjectViewModel(stubMessageService, simpleModel);
rootObject.ActivateItem(screenObjectViewModel);
const string expectedValue = DataGenerator.ValidName;
simpleModel.Name = expectedValue;
screenObjectViewModel.CloseCommand.Execute(null);
var isDirty = simpleModel.IsDirty;
isDirty.Should().BeFalse();
var actualValue = simpleModel.Name;
actualValue.Should().Be(expectedValue);
}
public void ModelIsChanged_WhenViewModelIsClosedAndMessageResultIsCancel_ModelIsSaved()
{
string initialValue = string.Empty;
const string newValue = DataGenerator.ValidName;
var simpleModel = new SimpleEditableModel(initialValue, 20);
var stubMessageService = new FakeMessageService();
stubMessageService.SetMessageResult(MessageResult.Cancel);
var rootObject = CreateRootObject();
var screenObjectViewModel = new TestEditableScreenSimpleObjectViewModel(stubMessageService, simpleModel);
rootObject.ActivateItem(screenObjectViewModel);
simpleModel.Name = newValue;
screenObjectViewModel.CloseCommand.Execute(null);
var isDirty = simpleModel.IsDirty;
isDirty.Should().BeTrue();
var actualValue = simpleModel.Name;
actualValue.Should().Be(DataGenerator.ValidName);
}