public void ExecuteCancelCommandShouldExecuteExpectedCommand()
{
// arrange
var command = new Mock<INamedCommand>();
command.Setup( c => c.CanExecute( It.IsAny<object>() ) ).Returns( true );
command.Setup( c => c.Execute( It.IsAny<object>() ) );
var interaction = new Interaction()
{
CancelCommandIndex = 0,
Commands = { command.Object }
};
// act
interaction.ExecuteCancelCommand();
// assert
command.Verify( c => c.Execute( null ), Times.Once() );
}