wxImage is a testbed application for the wxWidgets bitmap image class of this name. The application is a doc/view/mdi GUI app, capable of doing [very few] operations on the image and do bitmap file format conversions.
An advanced portable C++ library of over 80 boolean-like macros that hold an analysis if the condition fails, to help debugging, so a developer knows exactly what goes wrong. Allows reuse in adapted assertion macros, as in ModAssert (also on sourceforge) and UquoniTest (a unit test library for C++). Needs STL or wxWidgets.
This is an advanced portable C++ library with 144 variations of the ASSERT macro, to add expressions, levels and optional actions. 112 are modular because they can also use Rich Booleans, allowing much more combinations than non-modular ASSERT macros.
A cross-platform (tested under MSW, Linux GTK2 and Mac OS X) open source GUI testing framework for wxWidgets. With minimal changes to your program, you can write unit tests using CppUnit or capture user interaction into a CppUnit test case.