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DocForge2/tests/test_python_reference_adapter.py

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Python

from __future__ import annotations
import shutil
import tempfile
import unittest
from pathlib import Path
from typing import cast
from unittest import mock
import docforge.adapters.python as python_adapter
from docforge.adapter_sdk import (
AdapterProject,
AdapterSource,
AdapterSourceProjection,
verify_adapter_conformance,
)
from docforge.adapters.python import (
PYTHON_ADAPTER_ID,
PYTHON_ADAPTER_VERSION,
PYTHON_EXTRACTOR_VERSION,
PythonReferenceAdapter,
)
from docforge.errors import DocForgeError
from docforge.index import ProjectIndex
ROOT = Path(__file__).resolve().parents[1]
FIXTURE = ROOT / "tests" / "fixtures" / "reference-python"
class RecordingPythonAdapter(PythonReferenceAdapter):
def __init__(self, root: Path) -> None:
super().__init__(
root,
source_roots=("src",),
project_id="reference-python",
title="Reference Python fixture",
)
self.extracted_paths: list[str] = []
def extract_source(self, source: AdapterSource) -> AdapterSourceProjection:
self.extracted_paths.append(source.source_path)
return super().extract_source(source)
class PythonReferenceAdapterTests(unittest.TestCase):
def copy_fixture(self, parent: Path) -> Path:
root = parent / "reference-python"
shutil.copytree(FIXTURE, root)
return root.resolve()
def adapter(self, root: Path) -> RecordingPythonAdapter:
return RecordingPythonAdapter(root)
@staticmethod
def build_metrics(result: dict[str, object]) -> dict[str, object]:
return cast(dict[str, object], result["build"])
def test_complete_assembly_is_exact_ordered_cache_independent_and_scoped(self) -> None:
with tempfile.TemporaryDirectory() as directory:
root = self.copy_fixture(Path(directory))
adapter = self.adapter(root)
first = adapter.load_assembly()
second = adapter.load_complete_assembly()
projection = adapter.load_projection()
self.assertEqual(first, second)
self.assertEqual(first.projection, projection)
self.assertEqual(PYTHON_ADAPTER_ID, projection.adapter_id)
self.assertEqual(PYTHON_ADAPTER_VERSION, projection.adapter_version)
self.assertEqual(14, len(projection.nodes))
self.assertEqual(13, len(projection.edges))
self.assertEqual(5, len(first.logic))
self.assertEqual(
list(projection.nodes),
sorted(projection.nodes, key=lambda item: item.node.node_id),
)
self.assertEqual(
{"contains", "depends_on"}, {item.edge.relation for item in projection.edges}
)
self.assertFalse(any(item.node.title == "json" for item in projection.nodes))
self.assertTrue(
any(
item.node.title == "Service" and ("kind", "class") in item.metadata
for item in projection.nodes
)
)
self.assertTrue(
any(
item.node.title == "Service.run" and ("kind", "function") in item.metadata
for item in projection.nodes
)
)
report = adapter.support_report()
self.assertEqual(1, report["schema_version"])
self.assertEqual(PYTHON_EXTRACTOR_VERSION, report["extractor_version"])
self.assertFalse(report["imports_project_code"])
self.assertFalse(report["executes_project_code"])
self.assertEqual(
[
"call_resolution",
"dynamic_import_resolution",
"inheritance_resolution",
"runtime_generated_facts",
"symbol_reference_resolution",
],
[item.code for item in adapter.unsupported_facts()],
)
self.assertFalse((root / ".cache").exists())
conformance = verify_adapter_conformance(
adapter,
cache_root=root / ".cache" / "conformance",
)
self.assertEqual("reference-python", conformance.project_id)
self.assertEqual(14, conformance.node_count)
self.assertEqual(13, conformance.edge_count)
self.assertEqual(5, conformance.logic_projection_count)
self.assertTrue(conformance.incremental)
def test_incremental_cold_warm_reverse_dependencies_and_logic_equivalence(self) -> None:
with tempfile.TemporaryDirectory() as directory:
root = self.copy_fixture(Path(directory))
adapter = self.adapter(root)
project = AdapterProject(adapter, cache_root=root / ".cache" / "incremental")
index = ProjectIndex(project)
cold = index.build()
self.assertEqual(4, self.build_metrics(cold)["reparsed_sources"])
self.assertEqual(
[
"src/sample/__init__.py",
"src/sample/service.py",
"src/sample/shared.py",
"src/sample/worker.py",
],
sorted(adapter.extracted_paths),
)
adapter.extracted_paths.clear()
original_parse = python_adapter.ast.parse
with mock.patch.object(
python_adapter.ast,
"parse",
wraps=original_parse,
) as parsed:
warm = index.build()
self.assertEqual(4, self.build_metrics(warm)["cache_hits"])
self.assertEqual(0, self.build_metrics(warm)["reparsed_sources"])
self.assertEqual([], adapter.extracted_paths)
parsed.assert_not_called()
shared = root / "src" / "sample" / "shared.py"
shared.write_text(
shared.read_text(encoding="utf-8").replace(
"DEFAULT_LIMIT = 3", "DEFAULT_LIMIT = 5"
),
encoding="utf-8",
)
adapter.extracted_paths.clear()
with mock.patch.object(
python_adapter.ast,
"parse",
wraps=original_parse,
) as parsed:
changed = index.build()
self.assertEqual(4, self.build_metrics(changed)["invalidated_sources"])
self.assertGreater(parsed.call_count, 0)
self.assertEqual(
[
"src/sample/__init__.py",
"src/sample/service.py",
"src/sample/shared.py",
"src/sample/worker.py",
],
sorted(adapter.extracted_paths),
)
equivalent = project.verify_incremental_equivalence()
self.assertEqual("ok", equivalent["status"])
self.assertEqual(14, equivalent["node_count"])
self.assertEqual(13, equivalent["edge_count"])
self.assertEqual(5, equivalent["logic_projection_count"])
def test_add_rename_delete_and_corrupt_cache_recover_without_stale_facts(self) -> None:
with tempfile.TemporaryDirectory() as directory:
root = self.copy_fixture(Path(directory))
adapter = self.adapter(root)
cache_root = root / ".cache" / "incremental"
project = AdapterProject(adapter, cache_root=cache_root)
index = ProjectIndex(project)
index.build()
extra = root / "src" / "sample" / "extra.py"
extra.write_text(
'"""Added source."""\n\n\ndef extra() -> str:\n return "extra"\n',
encoding="utf-8",
)
adapter.extracted_paths.clear()
added = index.build()
self.assertEqual(1, self.build_metrics(added)["reparsed_sources"])
self.assertEqual(["src/sample/extra.py"], adapter.extracted_paths)
self.assertIn(
"src/sample/extra.py",
{node.source_path for node in project.load().nodes},
)
worker = root / "src" / "sample" / "worker.py"
runner = root / "src" / "sample" / "runner.py"
worker.rename(runner)
adapter.extracted_paths.clear()
renamed = index.build()
self.assertEqual(1, self.build_metrics(renamed)["deleted_sources"])
self.assertEqual(1, self.build_metrics(renamed)["reparsed_sources"])
renamed_paths = {node.source_path for node in project.load().nodes}
self.assertNotIn("src/sample/worker.py", renamed_paths)
self.assertIn("src/sample/runner.py", renamed_paths)
extra.unlink()
adapter.extracted_paths.clear()
deleted = index.build()
self.assertEqual(1, self.build_metrics(deleted)["deleted_sources"])
self.assertNotIn(
"src/sample/extra.py",
{node.source_path for node in project.load().nodes},
)
(cache_root / "extractions.json").write_text("{broken", encoding="utf-8")
adapter.extracted_paths.clear()
recovered = index.build()
self.assertEqual(4, self.build_metrics(recovered)["reparsed_sources"])
self.assertEqual(
[
"src/sample/__init__.py",
"src/sample/runner.py",
"src/sample/service.py",
"src/sample/shared.py",
],
sorted(adapter.extracted_paths),
)
self.assertEqual("ok", project.verify_incremental_equivalence()["status"])
def test_confinement_and_no_ast_policy_reject_logic_without_importing_code(self) -> None:
with tempfile.TemporaryDirectory() as directory:
parent = Path(directory)
root = self.copy_fixture(parent)
for source_root in (root / "src", Path("../outside")):
with self.subTest(source_root=source_root):
with self.assertRaises(DocForgeError) as captured:
PythonReferenceAdapter(root, source_roots=(source_root,))
self.assertEqual("path_escape", captured.exception.code)
outside = parent / "outside"
outside.mkdir()
linked_root = root / "linked"
linked_root.symlink_to(outside, target_is_directory=True)
with self.assertRaises(DocForgeError) as linked:
PythonReferenceAdapter(root, source_roots=("linked",))
self.assertEqual("path_escape", linked.exception.code)
external_source = outside / "external.py"
external_source.write_text("def outside():\n return True\n", encoding="utf-8")
worker = root / "src" / "sample" / "worker.py"
worker.unlink()
worker.symlink_to(external_source)
adapter = self.adapter(root)
with self.assertRaises(DocForgeError) as source_link:
adapter.load_manifest()
self.assertEqual("path_escape", source_link.exception.code)
with tempfile.TemporaryDirectory() as directory:
root = self.copy_fixture(Path(directory))
adapter = self.adapter(root)
project = AdapterProject(adapter, cache_root=root / ".cache" / "no-ast")
with self.assertRaises(DocForgeError) as no_ast:
ProjectIndex(project, allow_logic=False).build()
self.assertEqual("adapter_policy_forbids_logic", no_ast.exception.code)
self.assertFalse(project.descriptor.index_path.exists())