Test example parametrization

.github/workflows/main.yml

@@ -154,7 +154,7 @@ jobs:
           CONSTRUCTOR_SIGNTOOL_PATH: "C:/Program Files (x86)/Windows Kits/10/bin/10.0.26100.0/x86/signtool.exe"
         run: |
           rm -rf coverage.json
-          pytest -vv --cov=constructor --cov-branch tests/test_examples.py
+          pytest -vv --tb=long -rs --cov=constructor --cov-branch tests/test_examples.py
           coverage run --branch --append -m constructor -V
           coverage json
       - uses: codecov/codecov-action@671740ac38dd9b0130fbe1cec585b89eea48d3de # v5.5.2

pyproject.toml

@@ -86,4 +86,5 @@ select = [
 [tool.pytest.ini_options]
 markers = [
     "examples",
+    "installer_types: restrict test to specific installer types (args: tuple of suffix strings)",
 ]

tests/conftest.py

@@ -1,11 +1,53 @@
 import os
 import subprocess
+import sys
 from pathlib import Path
 
 import pytest
 
 REPO_DIR = Path(__file__).parent.parent
 
+def _platform_installer_types() -> list[str]:
+    """Return the installer type suffixes available on the current platform."""
+    if sys.platform.startswith("win"):
+        return ["exe"]
+    elif sys.platform == "darwin":
+        return ["sh", "pkg"]
+    else:
+        return ["sh"]
+
+ALL_INSTALLER_TYPES = _platform_installer_types()
+
+
+def pytest_generate_tests(metafunc):
+    """
+    Automatically parametrize any test that declares an ``installer_type``
+    fixture argument.
+
+    If the test is decorated with ``@pytest.mark.installer_types("pkg", ...)``
+    the parametrization is restricted to those types (intersected with what is
+    available on the current platform).  Without the marker all platform types
+    are used.
+
+    Note: this hook lives here for colocation with the tests; it should be
+    moved to ``conftest.py`` if this file grows or the hook is needed elsewhere.
+    """
+    if "installer_type" not in metafunc.fixturenames:
+        return
+
+    marker = metafunc.definition.get_closest_marker("installer_types")
+    if marker:
+        requested = list(marker.args)  # marker.args is already the tuple of strings
+        types = [t for t in requested if t in ALL_INSTALLER_TYPES]
+        if not types:
+            pytest.skip(
+                f"No applicable installer types for this platform "
+                f"(requested: {requested}, available: {ALL_INSTALLER_TYPES})"
+            )
+    else:
+        types = ALL_INSTALLER_TYPES
+
+    metafunc.parametrize("installer_type", types)
 
 @pytest.fixture
 def self_signed_application_certificate_macos(tmp_path):