Add GHA Workflow to run tests on each supported Python version and OS

.github/workflows/tests.yml

@@ -1,25 +1,25 @@
-name: Unit Tests
+name: Unit Tests on the lower supported Python version
 
-on: [push]
+on: [ push ]
 
 permissions:
   contents: read
 
 jobs:
-  deploy:
+  unit_tests:
     runs-on: ubuntu-latest
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3
 
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4
         with:
           python-version: '3.7'
 
       - name: Setup Poetry
-        run: curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/install-poetry.py | python
+        uses: snok/install-poetry@v1
 
       - name: Install dependencies
         run: poetry install

.github/workflows/tests_full.yml

@@ -0,0 +1,40 @@
+name: Unit Tests on all supported Python versions and OS
+
+on:
+  pull_request:
+    branches:
+      - main
+
+permissions:
+  contents: read
+
+jobs:
+  unit_tests:
+    strategy:
+      matrix:
+        os: [ macos-latest, ubuntu-latest, windows-latest ]
+        python-version: [ "3.7", "3.8", "3.9", "3.10", "3.11" ]
+
+    runs-on: ${{matrix.os}}
+
+    defaults:
+      run:
+        shell: bash
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up Python
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+
+      - name: Setup Poetry
+        uses: snok/install-poetry@v1
+
+      - name: Install dependencies
+        run: poetry install
+
+      - name: Run Tests
+        run: poetry run pytest