add tests CI

.github/workflows/test.yml

@@ -0,0 +1,34 @@
+# This workflow will install Python dependencies, then run tests with all supported versions of Python
+# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
+
+name: Test
+
+on:
+  push:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  unittest:
+    strategy:
+      matrix:
+        version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+      fail-fast: false
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Set up Python 3.12
+      uses: actions/setup-python@v5
+      with:
+        python-version: 3.12
+
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install -U -e ".[dev]"
+
+    - name: Check import statement sorting
+      run: |
+        python3 -m unittest -v test/test_*.py