Why Property Testing Finds Bugs Unit Testing Does Not (2021)

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Property-Based Testing (PBT) shines in its ability to uncover bugs that traditional unit testing might miss by focusing on the underlying properties of functions rather than specific inputs. Users shared experiences about successes with PBT, highlighting its effectiveness in validating complex algorithms and properties. There’s an ongoing debate about PBT and unit testing, with some asserting that unit tests are just specific instances of the broader concept of property testing. There’s also the potential of PBT to enhance unit tests by generating diverse inputs that can explore edge cases more efficiently. The discussion suggests PBT as a valuable complement to unit testing, especially for complex logic.
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