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conformance: randomized differential testing across every client - #590
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Hegel generates operation sequences (files, search, exec, and changes made behind the client's back); each runs in lockstep through every registered driver on its own root, and the answers are compared with each other and, on local backends, with std::fs. Findings D1..D5 are scenarios in differential-found.json, xfail for the clients that fail them. Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HJRTKuPpNNqCLEdyUwZj64
… even on SIGKILL; differential tests run only in the clients job Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HJRTKuPpNNqCLEdyUwZj64
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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HJRTKuPpNNqCLEdyUwZj64
…ferential tolerance Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HJRTKuPpNNqCLEdyUwZj64
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… built on the Rust client) Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HJRTKuPpNNqCLEdyUwZj64
…rop exec.exact from the comparison Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HJRTKuPpNNqCLEdyUwZj64
…er lead out of the root Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01HJRTKuPpNNqCLEdyUwZj64
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Hegel generates operation sequences (write, guarded write, read, stat, list, search, mkdir, exec, exec_stream, and changes made behind the client's back). Each runs in lockstep through every driver in
drivers.toml, each on its own fresh root, and answers are compared with each other (after the normalisations listed intests/differential/norm.rs) and, on local backends, withstd::fs(the property test's oracle, included by path). Differences shrink to a minimal sequence, printed as scenario JSON.Known bugs are tolerated by id (N1..N4, and the new D1, D2, D3, D5). New findings are in
sdk/conformance/scenarios/differential-found.json, xfail for the failing clients:splitlines()(CR etc.), so kinds fall back toio..gitfile above the search root; exit 2 reads asinvalid_query(all clients).(?i),(?P<x>)) clip as context lines.CI:
mise run test:differentialin theclientsjob, fixed seeds and counts. Env varsDIFFERENTIAL_*widen it.🤖 Generated with Claude Code
https://claude.ai/code/session_01HJRTKuPpNNqCLEdyUwZj64