Task 002: add shared domain contracts

apps/runner/tests/test_job_output_validation.py

@@ -0,0 +1,62 @@
+from __future__ import annotations
+
+import sys
+import os
+import shutil
+import tempfile
+import unittest
+from pathlib import Path
+
+from pydantic import ValidationError
+
+
+REPO_ROOT = Path(__file__).resolve().parents[3]
+RUNNER_ROOT = REPO_ROOT / "apps" / "runner"
+sys.path.insert(0, str(RUNNER_ROOT))
+
+from src.application.job_output_validation import (  # noqa: E402
+    _backend_contracts_module,
+    validate_agent_job_output,
+)
+
+
+class RunnerJobOutputValidationTest(unittest.TestCase):
+    def test_valid_runner_job_output_uses_backend_contracts(self) -> None:
+        output = validate_agent_job_output(
+            {
+                "status": "SUCCEEDED",
+                "output_files": [{"path": "outputs/plan.json"}],
+                "payload": {"artifact": "plan"},
+            }
+        )
+
+        self.assertEqual("SUCCEEDED", output.status.value)
+
+    def test_invalid_runner_job_output_status_is_rejected(self) -> None:
+        with self.assertRaises(ValidationError):
+            validate_agent_job_output({"status": "NOT_A_STATUS"})
+
+    def test_runner_image_layout_can_use_copied_backend_contracts(self) -> None:
+        source_contracts = REPO_ROOT / "apps" / "backend" / "src" / "domain" / "contracts"
+
+        with tempfile.TemporaryDirectory() as temp_dir:
+            copied_contracts = Path(temp_dir) / "backend_contracts" / "contracts"
+            shutil.copytree(source_contracts, copied_contracts)
+
+            previous = os.environ.get("PIPELINE_BACKEND_CONTRACTS_DIR")
+            os.environ["PIPELINE_BACKEND_CONTRACTS_DIR"] = str(copied_contracts)
+            _backend_contracts_module.cache_clear()
+            try:
+                output = validate_agent_job_output({"status": "SUCCEEDED"})
+            finally:
+                _backend_contracts_module.cache_clear()
+                if previous is None:
+                    os.environ.pop("PIPELINE_BACKEND_CONTRACTS_DIR", None)
+                else:
+                    os.environ["PIPELINE_BACKEND_CONTRACTS_DIR"] = previous
+
+        self.assertEqual("SUCCEEDED", output.status.value)
+
+
+if __name__ == "__main__":
+    unittest.main()