CuTest lets you write unit tests for your C code. You should use it because: (1) It has the cutest name, (2) It looks and feels like JUnit, (3) It is cross-platform, (4) It ships in a single .c and .h file for ease of deployment.
RIMUnit, an xUnit based unit-testing framework, allows developers to write better-quality Java code while developing applications for the BlackBerry® smartphone.
A C++ unit testing framework, in the style of CxxUnit, for Symbian OS. (For more information, forums and mailing lists please visit the project Home Page http://symbianosunit.sourceforge.net)