Update build_tests.yml

Author: Mariosmsk

.github/workflows/build_tests.yml

@@ -1,11 +1,9 @@
-# https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
 name: build
 
 on: [push]
 
 jobs:
   build:
-
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
@@ -17,17 +15,23 @@ jobs:
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
+      
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
           pip install flake8 pytest
+          if [ ${{ runner.os }} = "macOS" ]; then
+            brew install libomp
+          fi
           pip install -r requirements.txt
+
       - 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=127 --statistics
+
       - name: Test with pytest
         run: |
-          pytest -v
+          pytest -v