ci: execute tagged module pytest suites

tests/test_release_integration.py

@@ -1,8 +1,10 @@
 from __future__ import annotations
 
+import os
 import tempfile
 import unittest
 from pathlib import Path
+from unittest.mock import patch
 
 from tools.checks.release_integration import (
     SOURCE_COUPLED_CORE_TESTS,
@@ -10,6 +12,7 @@ from tools.checks.release_integration import (
     artifact_contract_issues,
     filter_test_suite,
     release_package_names,
+    run_module_release_tests,
 )
 
 
@@ -89,8 +92,43 @@ class ReleaseIntegrationTests(unittest.TestCase):
 
         self.assertLess(artifact_check, core_tests)
         self.assertLess(core_tests, module_tests)
+        self.assertNotIn("unittest discover", script)
         self.assertNotIn('"$PYTHON" -m unittest \\\n  tests.test_module_system', script)
 
+    def test_tagged_module_runner_executes_pytest_functions_from_module_root(self) -> None:
+        with tempfile.TemporaryDirectory(prefix="govoplan-release-module-tests-") as temp_dir:
+            module_root = Path(temp_dir)
+            tests_root = module_root / "tests"
+            tests_root.mkdir()
+            marker = module_root / "pytest-function-ran"
+            (tests_root / "test_probe.py").write_text(
+                """from pathlib import Path
+import os
+
+
+def test_pytest_style_function():
+    expected_root = Path(os.environ[\"GOVOPLAN_TEST_MODULE_ROOT\"])
+    assert Path.cwd() == expected_root
+    Path(os.environ[\"GOVOPLAN_TEST_MARKER\"]).write_text(\"ran\", encoding=\"utf-8\")
+""",
+                encoding="utf-8",
+            )
+            with patch.dict(
+                os.environ,
+                {
+                    "GOVOPLAN_TEST_MODULE_ROOT": str(module_root),
+                    "GOVOPLAN_TEST_MARKER": str(marker),
+                },
+            ):
+                status = run_module_release_tests(module_root)
+
+            self.assertEqual(status, 0)
+            self.assertEqual(marker.read_text(encoding="utf-8"), "ran")
+
+    def test_tagged_module_runner_skips_missing_test_tree(self) -> None:
+        with tempfile.TemporaryDirectory(prefix="govoplan-release-module-tests-") as temp_dir:
+            self.assertEqual(run_module_release_tests(Path(temp_dir)), 0)
+
     def test_module_matrix_uses_artifact_aware_core_suite(self) -> None:
         meta_root = Path(__file__).resolve().parents[1]
         script = (meta_root / "tools" / "checks" / "check-module-matrix.sh").read_text(encoding="utf-8")