Add Pytest (#2)

* CI. Add pytest

* CI. Add pytest

* CI. Add pytest

* CI. Add pytest

.github/workflows/pytest.yml

@@ -0,0 +1,35 @@
+name: Pytest
+
+on: [push]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        python-version: ["3.11", "3.12"]
+
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python ${{ matrix.python-version }}
+        uses: actions/setup-python@v5
+        with:
+          python-version: ${{ matrix.python-version }}
+      # You can test your matrix by printing the current Python version
+      - name: Display Python version
+        run: python -c "import sys; print(sys.version)"
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+          pip install .
+      - name: Test with pytest
+        run: |
+          pip install pytest pytest-cov
+          pytest tests/* --doctest-modules --junitxml=junit/test-results.xml --cov=com --cov-report=xml --cov-report=html
+      - name: Lint with Ruff
+        run: |
+          pip install ruff
+          ruff --output-format=github .
+        continue-on-error: true