hypothesis

Hypothesis randomly generates inputs to uncover bugs you might not have considered, as demonstrated in the README where it finds minimal failing examples like [0, 0] for a sorting function.

When a bug is found, Hypothesis reports the simplest possible failing example, making it easier to understand and fix issues, as shown with the my_sort example in the documentation.

It works with Python's standard testing frameworks like pytest and unittest, allowing easy adoption into existing test suites without major restructuring.

Provides built-in strategies for common data types and supports custom strategies, covering a wide range of test scenarios from integers to complex nested structures.