ci: add tests.yaml

Author: marcelblijleven

.github/workflows/tests.yaml

@@ -0,0 +1,27 @@
+name: Tests
+on:
+  - push
+  - pull_request
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        os: [ubuntu-latest]
+        python-version: ['3.8', '3.9', '3.10']
+      fail-fast: false
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install
+        run: |
+          python -m pip install --upgrade pip
+          pip install -e .
+          pip install tox tox-gh-actions
+      - name: Run tox on ${{ matrix.os }} with Python version ${{ matrix.python-version }}
+        run: tox