Add GH action to run tests

.github/workflows/GitHub_tests.yml

@@ -0,0 +1,40 @@
+name: Run Tests
+
+on:
+  pull_request:
+    types:
+      - opened
+      - synchronize
+  push:
+    branches:
+      - main
+      - sparkx_devel
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Set up Python
+        uses: actions/setup-python@v2
+        with:
+          python-version: 3.8
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install -r requirements.txt
+
+      - name: Run tests
+        run: |
+          python -m pytest tests/
+
+      - name: Check test results
+        run: |
+          if [ $? -ne 0 ]; then
+            echo "Tests failed. Blocking pull request merge."
+            exit 1
+          fi

CHANGELOG.md

@@ -28,7 +28,7 @@ A `Deprecated` section could be added if needed for soon-to-be removed features.
 * Lattice3D: Add covariant smearing of densities for particles
 * Oscar: Add spacetime cut
 * Particle: Add strangeness, spin and spin_degeneracy functions 
-* Tests: Add tests for the Particle class
+* Tests: Add automatic tests for the Particle class
 * GenerateFlow: Add functionality to generate flow with k-particle correlations
 * LeeYangZeroFlow: Add beta version of integrated and differential flow analysis with the Lee-Yang zero method
 * QCumulantFlow: Add beta version of integrated flow analysis with the Q-Cumulant method