Property-Based Testing: Why it Trumps Unit Testing for Complex Inputs

This article debates the merits of property-based testing (PBT) versus traditional unit testing. The author argues that while unit tests suffice for functions with single inputs, the combinatorial explosion of edge cases in multi-input functions makes PBT, with its randomized input generation, superior at uncovering hidden boundary errors. However, PBT has a learning curve; mastering complex input generation strategies is crucial. Most PBT examples are too simplistic to showcase its true power in handling complex input spaces.