Add poetry, tests action

Author: nikmolnar

.github/workflows/python-tests.yml

@@ -0,0 +1,31 @@
+name: Python tests
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        python-version: [2.7, 3.8, 3.9, 3.10, 3.11]
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          python -m pip install poetry
+          poetry env use system
+          poetry install --no-root
+      - name: Test with pytest
+        run: |
+          poetry run pytest