wikiwho 0.3.3

Fast Rust reimplementation of the WikiWho algorithm for fine-grained authorship attribution on large datasets. Optimized for easy integration in multi-threaded applications.
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name: Fuzz parity

# Randomized property tests that compare the Rust implementation against the reference
# Python WikiWho on generated inputs. Unlike the deterministic parity in ci.yml, these
# draw a fresh random seed each run, so they keep exploring new inputs even when the code
# hasn't changed — i.e. a continuous fuzzing campaign. A failure should be turned into a
# permanent regression by committing the emitted *.proptest-regressions seed.

on:
  schedule:
    - cron: "0 4 * * 1" # weekly, Monday 04:00 UTC
  workflow_dispatch:
    inputs:
      cases:
        description: "proptest cases per test"
        required: false
        default: "20000"

permissions:
  contents: read

env:
  CARGO_TERM_COLOR: always
  RUST_BACKTRACE: 1
  PROPTEST_CASES: ${{ github.event.inputs.cases || '20000' }}

jobs:
  fuzz:
    name: randomized parity vs Python
    runs-on: ubuntu-latest
    timeout-minutes: 120
    steps:
      - uses: actions/checkout@v4
        with: { lfs: false }
      - uses: dtolnay/rust-toolchain@stable
      - uses: Swatinem/rust-cache@v2
      - uses: actions/setup-python@v5
        with: { python-version: "3.12" }
      - name: Set up reference WikiWho venv
        run: |
          python -m venv .venv
          ./.venv/bin/pip install --upgrade pip
          ./.venv/bin/pip install -r requirements.txt
          echo "VIRTUAL_ENV=$PWD/.venv" >> "$GITHUB_ENV"
          echo "PYO3_PYTHON=$PWD/.venv/bin/python" >> "$GITHUB_ENV"
          echo "$PWD/.venv/bin" >> "$GITHUB_PATH"
      - name: Fuzz algorithm parity (random pages)
        run: cargo test --features python-diff,serde --test algorithm_exact_tests -- random_unicode_page tokenized_page
      - name: Fuzz tokenizer parity (split functions)
        run: cargo test --features python-diff --test utils_comparisons -- compare_split_into_
      - name: Upload discovered regression seeds
        if: failure()
        uses: actions/upload-artifact@v4
        with:
          name: proptest-regressions
          path: tests/**/*.proptest-regressions
          if-no-files-found: ignore