Add differential fuzz tests comparing rshell builtins against GNU coreutils#62

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thieman merged 20 commits intomainfrom

thieman/fuzz-tests-differential

Mar 13, 2026

Commits on Mar 12, 2026

Add GitHub Actions workflow for continuous fuzz testing in CI

thieman
and
claude
committed
Add memory benchmark assertions for streaming builtins (head, cat, wc, tail)

thieman
and
claude
committed
Add differential fuzz tests comparing rshell builtins against GNU coreutils

thieman
and
claude
committed
Address review comments: fix build failures and CI issues

thieman
and
claude
committed
Add native Go fuzz tests for builtin commands

thieman
and
claude
committed
Address review comments on fuzz tests PR

thieman
and
claude
committed
Consolidate native fuzz tests from PR #63 into differential fuzz PR

thieman
and
claude
committed
Add native fuzz tests for all remaining builtins

thieman
and
claude
committed
Expand fuzz seed corpuses across all builtins with implementation edge cases and CVE-class inputs

thieman
and
claude
committed
Add CVE-derived fuzz seeds: terminal injection, fixed strings, format magic bytes

thieman
and
claude
committed
Add Step 9: Write fuzz tests to implement-posix-command skill

thieman
and
claude
committed
Remove bench/memory tests — out of scope for this fuzz PR

thieman
and
claude
committed
Fix fuzz input filters: add UTF-8 and C1 control char guards

thieman
and
claude
committed
Add fuzz failure handling to fix-ci-tests and fix-local-tests skills

thieman
and
claude
committed
Fix fuzz seed corpus CI step: remove invalid -fuzztime=0s flag

thieman
and
claude
committed
Fix fuzz CI: remove invalid -fuzztime=0s and add differential fuzz to bash job

thieman
and
claude
committed
Fix wc -w: C0 control chars are transparent in POSIX locale

thieman
and
claude
committed

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Add differential fuzz tests comparing rshell builtins against GNU coreutils#62

Add differential fuzz tests comparing rshell builtins against GNU coreutils#62
thieman merged 20 commits intomainfrom
thieman/fuzz-tests-differential

Commits on Mar 12, 2026

Add GitHub Actions workflow for continuous fuzz testing in CI

Add memory benchmark assertions for streaming builtins (head, cat, wc, tail)

Add differential fuzz tests comparing rshell builtins against GNU coreutils

Address review comments: fix build failures and CI issues

Add native Go fuzz tests for builtin commands

Address review comments on fuzz tests PR

Consolidate native fuzz tests from PR #63 into differential fuzz PR

Add native fuzz tests for all remaining builtins

Expand fuzz seed corpuses across all builtins with implementation edge cases and CVE-class inputs

Add CVE-derived fuzz seeds: terminal injection, fixed strings, format magic bytes

Add Step 9: Write fuzz tests to implement-posix-command skill

Remove bench/memory tests — out of scope for this fuzz PR

Fix fuzz input filters: add UTF-8 and C1 control char guards

Add fuzz failure handling to fix-ci-tests and fix-local-tests skills

Fix fuzz seed corpus CI step: remove invalid -fuzztime=0s flag

Fix fuzz CI: remove invalid -fuzztime=0s and add differential fuzz to bash job

Fix wc -w: C0 control chars are transparent in POSIX locale

Commits on Mar 13, 2026

Restrict differential fuzz tests to Linux with LC_ALL=C.UTF-8

Fix wc: invalid UTF-8 bytes don't count as chars or words in C.UTF-8

Fix wc -w for Cn/unassigned and Zs/space-separator codepoints; fuzz all functions on failure