Add test workflow

Author: waylan

.github/workflows/test.yml

@@ -0,0 +1,29 @@
+name: test
+
+on:
+  pull_request:
+    branches:
+      - "**"
+
+jobs:
+  test:
+    name: build theme
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version:
+          ["3.8", "3.9", "3.10", "3.11", "pypy-3.8", "pypy-3.9", "pypy-3.10"]
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Setup Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip setuptools
+          python -m pip install .
+      - name: Build Themes
+        run: |
+          mkdocs build -v --strict