Add tests config

.github/workflows/test_infsum.yml

@@ -0,0 +1,39 @@
+name: main code
+
+on:
+  push:
+    branches:
+      - '**'
+  pull_request:
+    branches:
+      - '**'
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    defaults:
+      run:
+        working-directory: ${{ github.workspace }}
+
+    strategy:
+      matrix:
+        python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Install dependencies
+        run: |
+            pip install --upgrade pip
+            pip install pytest
+            pip install -r requirements.txt
+
+      - name: Run tests
+        run: |
+          pytest tests.py