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Reproducing failures

An important aspect of developing code with a fuzz testing suite is how to reproduce failing test cases. As for now, Protostar provides means of achieving this.

Reproducing a test run with seed​

Protostar prints a numeric seed of a pseudo-random number generator used as a source of generated examples:

17:15:36 [INFO] Test suites: 1 failed, 1 total            
17:15:36 [INFO] Tests:       1 failed, 1 total
17:15:36 [INFO] Seed:        3658430058

You can then recreate examples with the --seed CLI flag.