This topic accord sthe software testing, program designing, calculator applied, and the theories research of the research of tool,to study the gearing of the tool CPPIUNIT of the unit test, the environment installs, step and method, and carry on a partial improvement to it. Attain thus to test an unit test to carry on the study of system especially to the software, have enough usage and improvement ability to the existing test tool
Keywords: software test, unit test, cppunit, test tools