Multithreaded unit testing with ConTest

BANGALORE, INDIA: Concurrent programming is notoriously bug-prone. Worse, concurrent bugs tend to be detected late in the development process when they cause considerable damage and are hard to debug. Even when they are done thoroughly, conventional unit-testing practices are likely to miss concurrent bugs. In this article, concurrency experts Shmuel Ur and Yarden Nir-Buchbinder explain why concurrent bugs are so hard to catch and present a new solution from IBM Research.

In this tip, we introduce ConTest, a tool for testing, debugging, and measuring the coverage of concurrent programs. As you'll quickly see, ConTest isn't a replacement for unit testing but a complementary technology that addresses the failures of unit testing for concurrency programs.

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