- Use spawn in stead of fork so that any jvm will not exist in any child processes and block them from stopping.

- Use poetry for install.

.github/workflows/pytest.yml

@@ -0,0 +1,23 @@
+name: PyTest
+
+on: workflow_call
+
+jobs:
+  pytest:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        python-version: ["3.8", "3.10"]
+        os: [ubuntu-20.04, windows-2019, macOS-11]
+
+    steps:
+      - uses: actions/checkout@v3
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install dependencies
+        run: |
+          pip install .[test]
+      - name: Test with pytest
+        run: pytest