public void Should_Not_Move_Previous()
{
//Arrange
var items = new[] { new object(), new object(), new object() };
var view = new CollectionView(items);
var expected = view.CurrentItem;
ICommand command = new MoveCurrentToPreviousCommand(view);
//Act
command.Execute(null);
//Assert
var actual = view.CurrentItem;
actual.Should().Be(expected);
}
public void Should_Not_Move_Previous()
{
//Arrange
var items = new[] { new object(), new object(), new object() };
var view = new CollectionView(items);
var expected = view.CurrentItem;
bool changed = false;
ICommand command = new MoveCurrentToPreviousCommand(view);
command.CanExecuteChanged += delegate {
changed = true;
};
//Act
command.Execute(null);
//Assert
var actual = view.CurrentItem;
actual.Should().Be(expected);
changed.Should().BeFalse();
}