Add GitHub Actions workflow

.github/workflows/build-and-test.yml

@@ -0,0 +1,30 @@
+name: build & test
+
+on: [pull_request, push, workflow_dispatch]
+
+jobs:
+  test:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: true
+      matrix:
+        os: ["ubuntu-latest", "windows-latest", "macos-latest"]
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
+
+    steps:
+      - name: Checkout source
+        uses: actions/checkout@v2
+
+      - name: Setup python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+          architecture: x64
+
+      - name: Install
+        run: |
+          pip install -e .
+          pip install -r requirements_test.txt          
+
+      - name: Run tests
+        run: pytest