5 Regression Testing
The automatic test-generation and execution offered by Reactis enables
engineers to easily check whether a program conforms to the behavior
of a previous version.
The benefits of automatic detection of runtime errors, interactive debugging, and
automated program validation have been discussed above. This section
describes how Reactis-generated tests may be used for regression testing. A crucial aspect of the tests generated by Reactis Tester is that they
include all program outputs as well as inputs.
Hence these tests contain all the information needed to
ensure that a revised version of a program conforms to a previous version.
Reactis-driven regression testing proceeds as follows: -
Generate a test suite from the older version of the C program.
- For each test in the suite, execute the new version of the
software using the input values contained in the test.
- Compare the output values produced by the software with those stored in
the test.
- Record any discrepancies.
The net effect of regression testing with Reactis is better-quality software at
a lower cost. Because good test data is generated and run automatically, less
engineer-time is required to create and run tests.
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