feat: run tests on windows and macOS.

.github/workflows/pytest.yaml

@@ -4,21 +4,24 @@ name: pytest
 on: [push, pull_request]
 
 jobs:
-  pytest:
-    name: Run pytest
+  pytest-linux:
+    name: Run pytest (Linux)
     runs-on: ubuntu-24.04
 
     steps:
-      - name: Checkout repo
+      - &checkout
+        name: Checkout repo
         uses: actions/checkout@v4
 
-      - name: Setup Python
+      - &setup-python
+        name: Setup Python
         uses: actions/setup-python@v5
         with:
           python-version: '3.12'
           cache: pip
 
-      - name: Install Python dependencies
+      - &install-dependencies
+        name: Install Python dependencies
         run: |
           python -m pip install --upgrade uv
           uv pip install --system .[pytest]
@@ -52,10 +55,43 @@ jobs:
           name: coverage
           path: coverage.xml
 
+  pytest-windows:
+    name: Run pytest (Windows)
+    runs-on: windows-2025
+
+    steps:
+      - *checkout
+      - *setup-python
+      - *install-dependencies
+
+      - name: Install system dependencies
+        run: |
+          choco install ripgrep
+
+      - &pytest
+        name: Execute pytest
+        run: |
+          pytest
+
+  pytest-macos:
+    name: Run pytest (macOS)
+    runs-on: macos-15
+
+    steps:
+      - *checkout
+      - *setup-python
+      - *install-dependencies
+
+      - name: Install system dependencies
+        run: |
+          brew install ripgrep
+
+      - *pytest
+
   coverage:
     name: Check coverage
     runs-on: ubuntu-latest
-    needs: pytest
+    needs: pytest-linux
 
     steps:
       - name: Fetch coverage