public void HandleChangeNotificationWithComparer()
{
var mock = new MockPropertiesWithChangeNotification();
mock.PropertyChanged.Stored(out var propertyChangedEvent);
mock.StringProperty.StoredWithChangeNotification(out var prop, propertyChangedEvent, "Test", new StringLengthComparer());
IProperties sut = mock;
var updatedProperties = new List <string>();
mock.PropertyChanged.Add((s, e) =>
{
updatedProperties.Add(e.PropertyName);
});
// This causes an update as 'Hello' doesn't have the same length as the current value 'Test'
sut.StringProperty = "Hello";
// This doesn't cause an update as 'World' has the same length as current value 'Hello'.
sut.StringProperty = "World";
// So we'll only see one update
Assert.Equal(new[] { "StringProperty" }, updatedProperties);
// And the last written value was 'Hello'
Assert.Equal("Hello", prop.Value);
}
public RaisePropertyChangedEventPropertyStepTests()
{
_mockProperties = new MockPropertiesWithChangeNotification();
_properties = _mockProperties;
_npc = _mockProperties.PropertyChanged.Stored();
((INotifyPropertyChanged)_mockProperties).PropertyChanged += (sender, args) =>
{
_changedPropertyNames.Add(args.PropertyName);
};
}
public void HandleChangeNotificationWithoutComparer()
{
var mock = new MockPropertiesWithChangeNotification();
mock.PropertyChanged.Stored(out var propertyChangedEvent);
mock.StringProperty.StoredWithChangeNotification(propertyChangedEvent);
IProperties sut = mock;
var updatedProperties = new List <string>();
mock.PropertyChanged.Add((s, e) =>
{
updatedProperties.Add(e.PropertyName);
});
sut.StringProperty = "Hello";
Assert.Equal(new[] { "StringProperty" }, updatedProperties);
}
