fix: add pytest

Author: scorix

.github/workflows/test.yml

@@ -40,7 +40,7 @@ jobs:
 
       - name: Install Python dependencies and build package
         run: |
-          uv sync --frozen --verbose || uv sync --verbose
+          uv sync --extra test --frozen --verbose || uv sync --extra test --verbose
 
       - name: Run tests with coverage
         run: |

pyproject.toml

@@ -24,6 +24,12 @@ maintainers = [
 
 requires-python = ">= 3.8"
 
+[project.optional-dependencies]
+test = [
+    "pytest >= 8.0",
+    "pytest-cov >= 5.0",
+]
+
 [project.urls]
 Homepage = "https://mapnik.org"
 Documentation = "https://github.com/mapnik/python-mapnik/wiki"