Tessy

TESSY performs automated dynamic module/unit and integration testing of embedded software and determines the code coverage along the way. This kind of test is required for certifications according to standards such as DO-178B, IEC 61508 or ISO 26262.
The Classification Tree Editor (CTE) provides one method of systematically specifying test cases. This use of the Classification Tree Method is a unique feature of TESSY.
For programs written in the C programming language, a unit is a function in the sense of C. To start unit testing with TESSY, you simply browse for the C source module containing the function to test. TESSY parses this module and lists the C functions in it. You can select the function you want to test.