ci: add test workflow

Signed-off-by: Filipe Laíns <lains@riseup.net>

Author: FFY00

.github/workflows/test.yml

@@ -0,0 +1,49 @@
+name: tests
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+env:
+  FORCE_COLOR: 1
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+jobs:
+  pytest:
+    runs-on: ${{ matrix.os }}-latest
+    strategy:
+      matrix:
+        os:
+          - ubuntu
+          - windows
+          - macos
+        python:
+          - '3.9'
+          - '3.10'
+          - '3.11'
+          - '3.12'
+          - '3.13'
+      fail-fast: false
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: true
+      - uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python }}
+      - run: python -m pip install .[test]
+      - run: python -m pytest --showlocals -vv --cov --cov-report=xml
+      - uses: codecov/codecov-action@v4
+        if: always()
+        env:
+          PYTHON: ${{ matrix.python }}
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+        with:
+          flags: tests
+          env_vars: PYTHON
+          name: ${{ matrix.os }} - ${{ matrix.python }}