Add actions

.github/workflows/test.yml

@@ -0,0 +1,46 @@
+name: Test
+
+on:
+  pull_request:
+    branches:
+      - main
+      - master
+  push:
+    branches:
+      - main
+      - master
+
+env:
+  CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+
+jobs:
+  run:
+
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        python-version: ["3.8", "3.9", "3.10", "3.11"]
+
+    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: |
+          python -m pip install --upgrade pip
+          pip install hatch
+      - name: Test
+        run: |
+          hatch run cov-ci
+      - name: Lint
+        run: |
+          hatch run lint:style
+      - name: Upload to Codecov
+        uses: codecov/codecov-action@v3
+        with:
+          # This can be useful, but the false positive rate is
+          # annoyingly high.
+          fail_ci_if_error: false