Add mac runner

.github/workflows/run_unit_tests_mac.yaml

@@ -0,0 +1,37 @@
+name: Unit Testing Pipeline
+
+on: 
+  push:
+
+jobs:
+  build:
+    runs-on: macos-latest
+    strategy:
+      matrix:
+        python-version: ["3.8"]
+    steps:
+      - uses: actions/checkout@v3
+      - name: Setup python ${{ matrix.python-version }}
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ matrix.python-version }}
+          cache: 'pip'
+      - name: Set up Homebrew
+        id: set-up-homebrew
+        uses: Homebrew/actions/setup-homebrew@master
+      # - name: Install octave
+      #   run: |
+      #     sudo apt-get update
+      #     sudo apt-get install -y build-essential octave
+      # - name: Install dependencies
+      #   run: |
+      #     python -m pip install --upgrade pip
+      #     pip install -r requirements.txt
+      #     pip install .
+      # - name: Run pyspi calculator unit tests
+      #   run: |
+      #     pytest -v ./tests/test_calc.py
+      # - name: Run pyspi SPI unit tests
+      #   run: |
+      #     pytest -v ./tests/test_SPIs.py
+