It seems support for the Object Test Bench has been removed from Visual Studio 2010 edition. The Object Test Bench was functionality (first introduced since the 2005 edition and also present in 2008 edition) that allowed graphical instantiation and invocation of class/methods. What made this so useful was that it avoided the need for creation of a driver class or direct instantiation and invocation in source code in other areas of the project. This made it good for testing purposes.
I was trying to use it one day and noticed it missing (which is a shame as i was used to using it in previous releases). Upon a search on the web to get to the bottom of what actually happened to it i stumbled upon a unfortunate list of RIP features of Visual Studio 2010 here. The Object Test Bench was included in a list of ommitted features. Apparently developers never really used it much and it was more a tool for academia purposes (such as its use in BlueJ), not actual commercial development, so the Microsoft Visual Studio development team decided to remove it for the 2010 edition based on feedback. It would appear most commercial developers tended to use the Immediate window instead and it is much better for real world testing.
It will be a much missed feature. Particularly because it brought back memories of BlueJ (the days i started off learning proper OOP at college). But as anything, times move on and new techniques move on with them.
