tests.yml

name: Tests

on: [push, pull_request]

jobs:
  test:
    runs-on: ubuntu-latest

    strategy:
      fail-fast: false
      matrix:
        node-version: ["lts/-0", "lts/-1", "lts/-2", "lts/-3"]

    steps:
      - uses: actions/checkout@v4

      - name: Use Node.js ${{ matrix.node-version }}
        uses: actions/setup-node@v4
        with:
          node-version: ${{ matrix.node-version }}

      - name: Enable Corepack
        run: corepack enable

      - name: Detect Yarn version
        id: yarn-version
        run: |
          YARN_VERSION=$(node -p "
            try {
              const pm = require('./package.json').packageManager ?? '';
              const match = pm.match(/^yarn@(\d+)/);
              match ? match[1] : '';
            } catch { '' }
          ")
          if [ -z "$YARN_VERSION" ]; then
            YARN_VERSION=$(yarn --version | cut -d. -f1)
          fi
          echo "major=$YARN_VERSION" >> "$GITHUB_OUTPUT"
          echo "Detected Yarn major version: $YARN_VERSION"

      - name: Install dependencies
        run: |
          if [ "${{ steps.yarn-version.outputs.major }}" = "1" ]; then
            yarn install --frozen-lockfile --non-interactive --prefer-offline
          else
            yarn install --immutable
          fi

      - name: Lint
        run: yarn lint

      - name: Test
        run: yarn test