Files
LEDMatrix/test/web_interface/test_secret_separation_parity.py
T
ChuckBuildsandClaude Opus 5 60d5d19898 refactor(api-v3): split the 10,469-line blueprint into a package
web_interface/blueprints/api_v3.py held 111 routes, 56 helpers and 181
functions in one module -- 9% of the core by line count and three times the
next largest file. It becomes a package of nine route modules grouped by path
segment, plus __init__.py for the shared imports, constants, Blueprint and
helpers.

Every route module decorates the SAME api_v3 Blueprint object, so endpoint
names stay api_v3.<function>, the URL map is unchanged and app.py is untouched.
Verified: 111 routes before, 111 after, byte-identical rules, endpoints and
methods, and every endpoint still on the one blueprint.

  plugins   3,867   config    1,178   starlark  692   system  619
  fonts       452   misc        398   wifi      361   display 326   backup 212
  __init__  1,787 (imports, constants, Blueprint, 56 helpers)

Two things the URL-map check could not catch, both found by running the suite:

1. PROJECT_ROOT = Path(__file__).parent.parent.parent. Moving the code one
   directory deeper made that resolve to web_interface/ instead of the project
   root. Nothing failed at import; it surfaced as ~110 tests failing with 404s
   and "installation script not found", because every path built from it was
   one level too shallow. Now parents[3], and test_api_v3_url_map.py asserts
   PROJECT_ROOT/run.py exists so the next move cannot repeat it.

2. Module-attribute patching. Tests do
   monkeypatch.setattr(api_v3_module, "_BACKUP_EXPORT_DIR", ...) and a route
   module that binds such a name by value never sees the patch. The shared code
   therefore stays in __init__.py rather than moving to a _common submodule --
   it has to live on the module the tests patch -- and the eleven names tests
   patch are read back through the package (_pkg.X) instead of bound by value.
   Those eleven were found by AST-scanning every setattr in the test tree, not
   by guessing; "time" is among them, used to drive a fake clock through the
   second-resolution credential-backup filenames.

Test changes are confined to what genuinely moved: patch targets that now name
the owning route module, imports of helpers, and six tests that scan the api_v3
source as a file and now read the package directory.

Full suite: 4,278 passed, 68 skipped, 0 failed.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_014RRtqXDCnvnY6EQwhT5CV9
2026-09-09 19:41:02 -04:00

91 lines
3.4 KiB
Python

"""
Drift guard: api_v3 must use the canonical secret helpers.
Historically web_interface/blueprints/api_v3.py carried THREE inline
nested-function copies of ``find_secret_fields``/``separate_secrets`` (in the
main-config save, plugin-config save, and plugin-config reset endpoints).
They lacked the canonical module's array-item secret support and drifted from
each other. They have been migrated onto
``src/web_interface/secret_helpers`` — this file now guards against copies
REAPPEARING, and keeps the canonical array-item behavior executable.
"""
import re
from pathlib import Path
from src.web_interface.secret_helpers import find_secret_fields, separate_secrets
API_V3_PKG = (Path(__file__).resolve().parents[2]
/ "web_interface" / "blueprints" / "api_v3")
def _api_v3_source() -> str:
"""Every module of the api_v3 package as one string.
It used to be a single file; the inline copies this guards against could
now reappear in any module of the package.
"""
return "\n".join(p.read_text(encoding="utf-8")
for p in sorted(API_V3_PKG.glob("*.py")))
# The migration is complete: any inline reimplementation is a regression.
EXPECTED_INLINE_COPIES = 0
class TestNoInlineCopies:
def _count(self, name: str) -> int:
source = _api_v3_source()
return len(re.findall(rf"^\s*def {name}\(", source, flags=re.MULTILINE))
def test_no_inline_find_secret_fields(self):
count = self._count("find_secret_fields")
assert count == EXPECTED_INLINE_COPIES, (
f"api_v3.py has {count} inline find_secret_fields definitions, "
f"expected {EXPECTED_INLINE_COPIES}. Import it from "
f"src/web_interface/secret_helpers instead of re-implementing it."
)
def test_no_inline_separate_secrets(self):
count = self._count("separate_secrets")
assert count == EXPECTED_INLINE_COPIES, (
f"api_v3.py has {count} inline separate_secrets definitions, "
f"expected {EXPECTED_INLINE_COPIES}. Import it from "
f"src/web_interface/secret_helpers instead of re-implementing it."
)
def test_canonical_import_present(self):
# Tripwire: the endpoints still need the helpers, so removing the
# import means either dead secret handling or a new local copy.
source = _api_v3_source()
assert re.search(
r"from src\.web_interface\.secret_helpers import .*find_secret_fields",
source,
), "api_v3.py no longer imports the canonical secret helpers"
class TestCanonicalArrayItemBehavior:
"""Executable documentation of the array-item secret contract the
endpoints now inherit from the canonical module."""
SCHEMA = {
"accounts": {
"type": "array",
"items": {
"type": "object",
"properties": {
"name": {"type": "string"},
"token": {"type": "string", "x-secret": True},
},
},
},
}
def test_canonical_module_routes_array_item_secrets(self):
paths = find_secret_fields(self.SCHEMA)
assert "accounts[].token" in paths
config = {"accounts": [{"name": "a", "token": "s3cret"}]}
regular, secrets = separate_secrets(config, paths)
assert regular == {"accounts": [{"name": "a"}]}
assert secrets == {"accounts": [{"token": "s3cret"}]}