matrix test with multiple versions

Author: kmodexc

.github/workflows/test.yml

@@ -4,15 +4,16 @@ on: push
 
 jobs:
   build-and-test:
-
-    runs-on: ubuntu-latest
-
+    runs-on: ubuntu-latest    
+    strategy:
+      matrix:
+        python-version: ["3.8", "3.9", "3.10"]
     steps:
     - uses: actions/checkout@v2
-    - name: Set up Python
+    - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v2
       with:
-        python-version: '3.x'
+        python-version: ${{ matrix.python-version }}
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip