Update GitHub test action

.github/workflows/test.yml

@@ -1,8 +1,10 @@
 name: test
 
-on: 
+on:
   push:
-  workflow_dispatch:
+    branches: [ master ]
+  pull_request:
+    branches: [ master ]
 
 jobs:
   build:
@@ -11,14 +13,23 @@ jobs:
       fail-fast: false
       matrix:
         python-version: ['3.8', '3.9', '3.10', '3.11', '3.12']
-
     steps:
-      - uses: actions/checkout@v4
-
-      - name: install virtual env
-        run: |
-          pip install virtualenv
-          
-      - name: make test
-        run: |
-          make test
+    - uses: actions/checkout@v4
+    - name: Set up Python ${{ matrix.python-version }}
+      uses: actions/setup-python@v5
+      with:
+        python-version: ${{ matrix.python-version }}
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        python -m pip install flake8 pytest
+        if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
+    - name: Lint with flake8
+      run: |
+        # stop the build if there are Python syntax errors or undefined names
+        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
+        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
+        flake8 . --count --exit-zero --max-complexity=10 --max-line-length=100 --statistics
+    - name: Test with pytest
+      run: |
+        PYTHONPATH=src/ pytest --doctest-modules --doctest-continue-on-failure