test: ensure commitlint preset compatibility

Author: sheerlox

.commitlintrc

@@ -0,0 +1 @@
+{"extends": ["@insurgentlab/commitlint-config"]}

.github/workflows/test.yml

@@ -16,6 +16,8 @@ jobs:
     steps:
       - name: Checkout project
         uses: actions/checkout@8ade135a41bc03ea155e62e844d188df1ea18608 # v4
+        with:
+          fetch-depth: 0
       - name: Use Node.js
         uses: actions/setup-node@5e21ff4d9bc1a8cf6de233a3057d20ec6b3fb69d # v3
         with:
@@ -26,6 +28,15 @@ jobs:
         run: npm run lint
       - name: Run tests
         run: npm run test
+
+      # Ensure commitlint is working with HEAD version of our preset
+      - name: Validate current commit (last commit) with commitlint
+        if: github.event_name == 'push'
+        run: npx commitlint --from HEAD~1 --to HEAD --verbose
+      - name: Validate PR commits with commitlint
+        if: github.event_name == 'pull_request'
+        run: npx commitlint --from ${{ github.event.pull_request.head.sha }}~${{ github.event.pull_request.commits }} --to ${{ github.event.pull_request.head.sha }} --verbose
+
       - name: Upload coverage reports to Codecov
         if: ${{ matrix.os == 'ubuntu-latest' }}
         uses: codecov/codecov-action@eaaf4bedf32dbdc6b720b63067d99c4d77d6047d # v3