ci: add pytest, fixes #20

.github/workflows/tests.yml

@@ -0,0 +1,31 @@
+name: tests
+
+on:
+  push:
+    branches: [main]
+    paths:
+      - '.github/workflows/tests.yml'
+      - 'l2gv2/**.py'
+      - 'tests/**.py'
+      - 'requirements.txt'
+  pull_request:
+    paths:
+      - '.github/workflows/tests.yml'
+      - 'l2gv2/**.py'
+      - 'tests/**.py'
+      - 'requirements.txt'
+jobs:
+  ci:
+    runs-on: ubuntu-22.04
+    steps:
+    - uses: actions/checkout@v4
+    - name: Set up Python 3.10
+      uses: actions/setup-python@v5
+      with:
+        python-version: "3.10"
+    - name: Install dependencies
+      run: |
+        python3 -m pip install -r requirements.txt
+    - name: Test with pytest
+      run: |
+        python3 -m pytest