Enable cross-platform dependency testing on Linux, macOS, and Windows

.github/workflows/dependency-testing.yaml

@@ -38,37 +38,43 @@ permissions:
 jobs:
   dependency-matrix:
     name: Test Python ${{ matrix.python-version }} with ${{ matrix.deps-type }} dependencies
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    defaults:
+      run:
+        shell: bash
     strategy:
       fail-fast: false
       matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
         python-version: ['3.9', '3.10', '3.11', '3.12']
         deps-type: ['max', 'default']
 
     steps:
       - uses: actions/checkout@v4
 
       - name: Free Disk Space
+        if: runner.os == 'Linux'
         run: ./disk_clean.sh
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
         with:
           python-version: ${{ matrix.python-version }}
 
-      - name: Install system dependencies
+      - name: Install system dependencies (Linux)
+        if: runner.os == 'Linux'
         run: |
           sudo apt-get update
           sudo apt-get install -y build-essential libomp-dev
 
+      - name: Install system dependencies (macOS)
+        if: runner.os == 'macOS'
+        run: brew install libomp
+
       - name: Install build tooling (Poetry and uv)
         run: |
           python -m pip install --upgrade pip
-          curl -sSL https://install.python-poetry.org | python3 - --yes
-          echo "$HOME/.local/bin" >> $GITHUB_PATH
-          echo "$HOME/.poetry/bin" >> $GITHUB_PATH
-          curl -LsSf https://astral.sh/uv/install.sh | sh
-          echo "$HOME/.cargo/bin" >> $GITHUB_PATH
+          pip install poetry uv
 
       - name: Build wheel and sdist
         run: |

tests/test_unit_tests.py

@@ -99,9 +99,7 @@ def _find_test_files():
             if file.startswith("test_") and file.endswith(".py"):
                 # Convert file path to module path
                 file_path = os.path.join(root, file)
-                module_path = os.path.relpath(file_path, "tests").replace("/", ".")[
-                    :-3
-                ]  # remove .py
+                module_path = os.path.relpath(file_path, "tests").replace(os.sep, ".")[:-3]  # remove .py
                 test_files.append(module_path)
     return test_files