public void ExecuteShouldInvokeCommand()
{
// arrange
var pre = new Mock<Action<object>>();
var post = new Mock<Action<object>>();
pre.Setup( f => f( It.IsAny<object>() ) );
post.Setup( f => f( It.IsAny<object>() ) );
var command = new Mock<INotifyCommandChanged>();
command.Setup( c => c.Execute( It.IsAny<object>() ) ).Raises( c => c.Executed += null, EventArgs.Empty );
var interceptor = new CommandInterceptor<object>( pre.Object, post.Object, command.Object );
var raised = false;
interceptor.Executed += ( s, e ) => raised = true;
// act
interceptor.Execute();
// assert
pre.Verify( f => f( null ), Times.Once() );
command.Verify( c => c.Execute( null ), Times.Once() );
post.Verify( f => f( null ), Times.Once() );
Assert.True( raised );
}
