fuzz-tests: improve fuzz-bech32
#8311
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added 4 commits
June 2, 2025 05:25
Changelog-None: Use the common library utilities for temporary allocations instead of manually calling `malloc` and `free`. This makes the code conformant with rest of the codebase and reduces the chances of leaks.
According to `common/bech32.h`, the valid values of witness program version are between 0 and 16 (inclusive). Update the test to iterate over all of these values.
Currently, the test only checks the 5-to-8 bit conversion. Add a roundtrip check for 8-to-5 bit conversion as well.
Change in the fuzzing scheme of fuzz-bech32 led to the discovery of test inputs that result in greater in code coverage. Add these inputs to the test's seed corpus.
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Add improvements to
tests/fuzz/fuzz-bech32and add the coverage increasing inputs to the corresponding corpus.Checklist
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CC: @morehouse