add CI workflow to run the test suite

Runs make test on every push/PR. Kernel verifier tests need passwordless
sudo and a kernel with BTF/BPF enabled, which isn't guaranteed on every
runner, so the workflow probes for working sudo first and only attempts
them if it's available.

Also add ctypeslib2 to the test extra: make test now regenerates
vmlinux.py via tools/vmlinux-gen.py, which needs clang2py.

Author: varun-r-mallya

.github/workflows/test.yml

@@ -0,0 +1,53 @@
+# Runs the pytest suite (IR generation + LLC compilation). Kernel verifier
+# tests additionally need passwordless sudo and a kernel with BTF/BPF
+# enabled, which isn't guaranteed on every runner, so we probe for working
+# sudo first and only attempt them if it's there.
+
+name: Test
+
+on:
+  workflow_dispatch:
+  push:
+  pull_request:
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v7
+
+      - uses: actions/setup-python@v7
+        with:
+          python-version: "3.12"
+
+      - name: Install system dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y clang llvm libclang-dev bpftool
+
+      - name: Install uv
+        run: pip install uv
+
+      - name: Install project
+        run: uv pip install --system -e ".[test]"
+
+      - name: Run test suite
+        run: make test
+
+      - name: Check whether sudo is usable
+        id: sudo-check
+        run: |
+          if sudo -n true 2>/dev/null; then
+            echo "Passwordless sudo is available."
+            echo "available=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "No passwordless sudo on this runner; kernel verifier tests will be skipped."
+            echo "available=false" >> "$GITHUB_OUTPUT"
+          fi
+
+      - name: Run kernel verifier tests
+        if: steps.sudo-check.outputs.available == 'true'
+        run: |
+          sudo -v
+          make test-verifier

pyproject.toml

@@ -44,6 +44,7 @@ docs = [
 test = [
     "pytest>=8.0",
     "pytest-cov>=5.0",
+    "ctypeslib2",
 ]
 
 [tool.setuptools.packages.find]