chore: cover more python versions in test workflow (#42)

Author: qingzhuozhen

.github/workflows/test.yml

@@ -4,10 +4,10 @@ on: [pull_request]
 
 jobs:
   test:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     strategy:
       matrix:
-        python-version: [ "3.6" ]
+        python-version: [ "3.6", "3.7", "3.8", "3.9", "3.10", "3.11" ]
     steps:
       - name: Checkout source code
         uses: actions/checkout@v3
@@ -18,4 +18,6 @@ jobs:
           python-version: ${{ matrix.python-version }}
 
       - name: Unit Test
-        run: python -m unittest discover -s ./src -p 'test_*.py'
+        run: |
+          pip3 install --user tox
+          python3 -m tox -e py

tox.ini

@@ -0,0 +1,7 @@
+[tox]
+envlist =
+    py
+
+[testenv]
+commands =
+    python -m unittest discover -s ./src -p 'test_*.py'