public void INotifyPropertyChangedIsImplemented()
{
// Arrange
Person sut = new Person();
// Act
INotifyPropertyChanged sutAsNotifyPropertyChanged = sut as INotifyPropertyChanged;
// Assert
Assert.IsNotNull(sutAsNotifyPropertyChanged);
}
public void PropertyChangedEventIsNotRaisedWhenAPropertyIsSetToItsExistingValue()
{
// Arrange
Person sut = new Person();
string firstName = "First name";
sut.FirstName = firstName;
IPropertyChangedEventSubscriber eventSubscriber =
MockRepository.GenerateMock<IPropertyChangedEventSubscriber>();
INotifyPropertyChanged sutAsNotifyPropertyChanged = sut as INotifyPropertyChanged;
sutAsNotifyPropertyChanged.PropertyChanged += eventSubscriber.Handler;
// Act
sut.FirstName = firstName;
// Assert
eventSubscriber.AssertWasNotCalled(e => e.Handler(sut, null), e => e.IgnoreArguments());
}
public void PropertyChangedEventIsRaisedWhenAPropertyIsChanged()
{
// Arrange
Person sut = new Person();
IPropertyChangedEventSubscriber eventSubscriber =
MockRepository.GenerateMock<IPropertyChangedEventSubscriber>();
INotifyPropertyChanged sutAsNotifyPropertyChanged = sut as INotifyPropertyChanged;
sutAsNotifyPropertyChanged.PropertyChanged += eventSubscriber.Handler;
// Act
sut.FirstName = "Changed value";
// Assert
eventSubscriber.AssertWasCalled(
e => e.Handler(sut, null),
e => e.Constraints(
new[]
{
Is.Equal(sut),
Property.Value("PropertyName", "FirstName"),
}));
}