feat(deploy): register Engine MCP profile decoder transition
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@@ -0,0 +1,325 @@
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import hashlib
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import importlib.machinery
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import importlib.util
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import io
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import json
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import os
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from pathlib import Path
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import subprocess
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import tarfile
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import tempfile
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import unittest
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from contextlib import redirect_stdout
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from unittest import mock
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SCRIPT_DIR = Path(__file__).resolve().parent
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RUNNER_PATH = SCRIPT_DIR / "nodedc-deploy"
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BUILDER_PATH = (
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SCRIPT_DIR / "build-engine-mcp-execution-profile-decoder-artifact.mjs"
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)
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ENGINE_ROOT = SCRIPT_DIR.parent.parent.parent / "NODEDC_ENGINE_INFRA"
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PATCH_ID = "engine-mcp-execution-profile-decoder-20991231-999"
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def load_runner():
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loader = importlib.machinery.SourceFileLoader(
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"nodedc_engine_mcp_execution_profile_decoder",
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str(RUNNER_PATH),
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)
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spec = importlib.util.spec_from_loader(loader.name, loader)
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module = importlib.util.module_from_spec(spec)
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loader.exec_module(module)
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return module
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RUNNER = load_runner()
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class EngineMcpExecutionProfileDecoderTest(unittest.TestCase):
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def require_current_target_source(self):
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for relative_path, expected in (
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RUNNER.ENGINE_MCP_EXECUTION_PROFILE_DECODER_TARGET_SHA256.items()
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):
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path = ENGINE_ROOT / relative_path
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if (
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not path.is_file()
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or hashlib.sha256(path.read_bytes()).hexdigest() != expected
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):
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self.skipTest(
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"execution profile decoder source has advanced "
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"to its exact successor"
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)
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def build(self, artifact_dir):
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environment = os.environ.copy()
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environment["NODEDC_ENGINE_SOURCE_ROOT"] = str(ENGINE_ROOT)
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environment["NODEDC_DEPLOY_ARTIFACT_DIR"] = str(artifact_dir)
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completed = subprocess.run(
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["node", str(BUILDER_PATH), PATCH_ID],
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check=True,
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capture_output=True,
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text=True,
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env=environment,
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)
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return json.loads(completed.stdout)
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def test_builder_emits_exact_deterministic_two_file_slice(self):
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self.require_current_target_source()
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with tempfile.TemporaryDirectory(
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prefix="nodedc-engine-mcp-profile-decoder-"
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) as directory:
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root = Path(directory)
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first = self.build(root / "first")
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second = self.build(root / "second")
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first_artifact = Path(first["artifact"])
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second_artifact = Path(second["artifact"])
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self.assertEqual(first_artifact.read_bytes(), second_artifact.read_bytes())
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self.assertEqual(
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first["sha256"],
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hashlib.sha256(first_artifact.read_bytes()).hexdigest(),
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)
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self.assertEqual(first["services"], ["nodedc-backend"])
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self.assertEqual(first["valuesIncluded"], False)
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self.assertEqual(first["rawExecutionDataIncluded"], False)
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self.assertEqual(
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tuple(first["entries"]),
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RUNNER.ENGINE_MCP_EXECUTION_PROFILE_DECODER_ARTIFACT_ENTRIES,
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)
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extract = root / "extract"
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with tarfile.open(first_artifact, "r:gz") as archive:
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archive.extractall(extract, filter="data")
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entries = tuple(
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(extract / "files.txt").read_text(encoding="utf-8").splitlines()
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)
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payload = extract / "payload"
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self.assertTrue(
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RUNNER.is_engine_mcp_execution_profile_decoder_slice(
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"engine",
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entries,
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)
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)
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self.assertFalse(
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RUNNER.is_engine_provider_target_host_policy_slice(
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"engine",
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entries,
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)
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)
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self.assertEqual(
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RUNNER.component_services("engine", entries),
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("nodedc-backend",),
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)
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self.assertEqual(
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RUNNER.component_healthchecks(
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"engine",
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entries,
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("nodedc-backend",),
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),
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("http://127.0.0.1:3001/health",),
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)
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RUNNER.validate_engine_mcp_execution_profile_decoder_slice(
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payload,
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entries,
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)
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with tempfile.TemporaryDirectory(
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prefix="nodedc-engine-mcp-profile-plan-"
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) as plan_directory:
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loaded = RUNNER.load_artifact(
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first_artifact,
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Path(plan_directory),
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)
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self.assertEqual(loaded[0]["component"], "engine")
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self.assertEqual(tuple(loaded[1]), entries)
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def test_preflight_requires_exact_predecessor_and_absent_descriptor(self):
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with tempfile.TemporaryDirectory(
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prefix="nodedc-engine-mcp-profile-preflight-"
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) as directory:
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root = Path(directory)
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relative_path = next(
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iter(
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RUNNER.ENGINE_MCP_EXECUTION_PROFILE_DECODER_PREDECESSOR_SHA256
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)
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)
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path = root / relative_path
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path.parent.mkdir(parents=True, exist_ok=True)
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path.write_text("predecessor\n", encoding="utf-8")
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expected = (
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RUNNER.ENGINE_MCP_EXECUTION_PROFILE_DECODER_PREDECESSOR_SHA256[
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relative_path
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]
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)
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with (
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mock.patch.object(RUNNER, "component_root", return_value=root),
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mock.patch.object(RUNNER, "sha256_file", return_value=expected),
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mock.patch.object(
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RUNNER,
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"preflight_engine_credential_backend_runtime",
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return_value={"mode": "verified-derived-retry"},
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),
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):
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result = (
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RUNNER.preflight_engine_mcp_execution_profile_decoder_predecessor()
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)
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self.assertEqual(
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result["mode"],
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"exact-flatted-numeric-string-preservation",
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)
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descriptor = (
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root / RUNNER.ENGINE_MCP_EXECUTION_PROFILE_DECODER_DESCRIPTOR_REL
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)
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descriptor.parent.mkdir(parents=True, exist_ok=True)
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descriptor.write_text("{}\n", encoding="utf-8")
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with (
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mock.patch.object(RUNNER, "component_root", return_value=root),
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mock.patch.object(RUNNER, "sha256_file", return_value=expected),
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):
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with self.assertRaises(RUNNER.DeployError):
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RUNNER.preflight_engine_mcp_execution_profile_decoder_predecessor()
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def test_plan_renders_exact_external_mcp_boundary(self):
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self.require_current_target_source()
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with tempfile.TemporaryDirectory(
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prefix="nodedc-engine-mcp-profile-plan-"
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) as directory:
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root = Path(directory)
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built = self.build(root / "artifacts")
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artifact = Path(built["artifact"])
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live_root = root / "live"
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live_root.mkdir()
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preflight = {
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"mode": "exact-flatted-numeric-string-preservation",
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"predecessor_sha256": dict(
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RUNNER.ENGINE_MCP_EXECUTION_PROFILE_DECODER_PREDECESSOR_SHA256
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),
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"target_sha256": dict(
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RUNNER.ENGINE_MCP_EXECUTION_PROFILE_DECODER_TARGET_SHA256
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),
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"new_paths": tuple(
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RUNNER.ENGINE_MCP_EXECUTION_PROFILE_DECODER_NEW_PATHS
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),
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"backend_mode": "verified-derived-retry",
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}
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output = io.StringIO()
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with (
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mock.patch.object(RUNNER, "validate_artifact_location"),
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mock.patch.object(RUNNER, "ensure_layout"),
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mock.patch.object(RUNNER, "TMP_DIR", root),
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mock.patch.object(RUNNER, "component_root", return_value=live_root),
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mock.patch.object(
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RUNNER,
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"component_compose_root",
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return_value=live_root,
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),
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mock.patch.object(
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RUNNER,
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"preflight_engine_mcp_execution_profile_decoder_predecessor",
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return_value=preflight,
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),
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mock.patch.object(
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RUNNER,
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"preflight_engine_credential_backend_runtime",
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return_value={"mode": "verified-derived-retry"},
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),
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mock.patch.object(RUNNER, "state_has_sha", return_value=False),
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mock.patch.object(RUNNER, "state_has_patch_id", return_value=False),
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redirect_stdout(output),
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):
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RUNNER.plan_artifact(artifact)
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plan = output.getvalue()
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self.assertIn("services=nodedc-backend", plan)
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self.assertIn(
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"engine_mcp_observability_transition="
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"exact-flatted-numeric-string-preservation",
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plan,
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)
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self.assertIn("engine_mcp_surface=external-codex", plan)
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self.assertIn("engine_mcp_profile_values_included=no", plan)
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self.assertIn("mcp_nginx=untouched", plan)
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self.assertIn("embedded_ai_workspace=untouched", plan)
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self.assertIn(
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"engine_mcp_profile_decoder_predecessor_state"
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f"[{RUNNER.ENGINE_MCP_EXECUTION_PROFILE_DECODER_DESCRIPTOR_REL}]="
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"absent",
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plan,
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)
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self.assertIn("state=new", plan)
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def test_healthchecks_dispatch_safe_profile_acceptance(self):
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entries = RUNNER.ENGINE_MCP_EXECUTION_PROFILE_DECODER_ARTIFACT_ENTRIES
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with tempfile.TemporaryDirectory(
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prefix="nodedc-engine-mcp-profile-health-"
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) as directory:
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root = Path(directory)
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for relative_path in entries:
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path = root / relative_path
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path.parent.mkdir(parents=True, exist_ok=True)
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path.write_text("target\n", encoding="utf-8")
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def target_hash(path):
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relative_path = Path(path).relative_to(root).as_posix()
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return (
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RUNNER.ENGINE_MCP_EXECUTION_PROFILE_DECODER_TARGET_SHA256[
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relative_path
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]
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)
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with (
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mock.patch.object(RUNNER, "component_root", return_value=root),
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mock.patch.object(RUNNER, "sha256_file", side_effect=target_hash),
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mock.patch.object(RUNNER, "healthcheck_compose_service"),
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mock.patch.object(RUNNER, "component_healthchecks", return_value=()),
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mock.patch.object(
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RUNNER,
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"preflight_engine_credential_backend_runtime",
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return_value={"mode": "verified-derived-retry"},
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),
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mock.patch.object(
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RUNNER,
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"accept_engine_mcp_execution_profile_decoder_runtime",
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return_value={"live": "accepted"},
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) as acceptance,
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mock.patch.object(RUNNER, "healthcheck_container"),
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):
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RUNNER.run_healthchecks(
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"engine",
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entries,
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("nodedc-backend",),
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)
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acceptance.assert_called_once_with()
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def test_live_acceptance_uses_safe_profile_contract(self):
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self.require_current_target_source()
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expected_live = (
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"engine-mcp-execution-profile-decoder:"
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"flatted-numeric-strings:safe-profile:v1"
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)
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with (
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mock.patch.object(RUNNER, "component_root", return_value=ENGINE_ROOT),
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mock.patch.object(
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RUNNER,
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"engine_backend_container_id",
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return_value="backend",
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),
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mock.patch.object(
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RUNNER,
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"run_engine_backend_probe",
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return_value=expected_live,
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) as backend_probe,
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):
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result = RUNNER.accept_engine_mcp_execution_profile_decoder_runtime()
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self.assertEqual(result["live"], expected_live)
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self.assertEqual(
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backend_probe.call_args.args[1],
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"Engine MCP execution profile decoder",
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)
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probe_source = backend_probe.call_args.args[0][-1]
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self.assertIn("module.toSafeNodeOutputProfile", probe_source)
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self.assertIn("profile.valuesIncluded!==false", probe_source)
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self.assertIn(".json.fact", probe_source)
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if __name__ == "__main__":
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unittest.main(verbosity=2)
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