Files
LEDMatrix/test/web_interface/test_api_v3_backup_restore.py
T
ChuckandClaude Opus 5.5 b09434a418 refactor(plugins): the display publishes plugin runtime state; retire plugin_state.json (#690)
Stage 2 of the web plugin catalog, after #688.

- The display publishes a plugin runtime snapshot (plugin_runtime.py) to
  the shared cache: per plugin loaded, lifecycle state, a short redacted
  error summary, the version it loaded and when, plus published_at /
  stale_after / running. Written on change (throttled to 10 s; the
  RUNNING/ENABLED flip of an ordinary update is not a change) and once a
  minute otherwise; cleanup() publishes running: false.
- The web reads it back and restores loaded / state / error_info in
  /api/v3/plugins/installed (plus loaded_version, loaded_at and
  data.runtime). Only a live snapshot counts; stale, stopped or missing
  answers null and says which.
- data/plugin_state.json is retired: every reader and writer moved to
  config + disk (desired) or the snapshot (observed). Nothing in it was
  non-derivable, so nothing is migrated and an existing file is left
  unread. The web-side PluginStateManager (state_manager.py) is removed;
  the display's plugin_state.PluginStateManager is the only state machine.
- StateReconciliation compares config + disk with the snapshot, reporting
  enabled-but-not-loaded and older-version-loaded as no_action findings.
- Backups list installed manifests with enabled from config.json.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-30 10:48:14 -04:00

314 lines
13 KiB
Python

"""
Endpoint tests for POST /backup/restore.
Restore is the most destructive operation the web interface exposes: it
overwrites config, secrets, WiFi settings and fonts, and reinstalls
plugins. It had no tests.
restore_backup itself is mocked — this file is about what the route does
with the request and with the result, not about ZIP handling, which
belongs to backup_manager's own tests.
Regression coverage for one fixed bug: a malformed `options` field fell
back to {}, and since every RestoreOptions flag defaults to True, that
turned a mis-serialized narrow restore into a full one — secrets
included — with no indication anything had been ignored.
"""
import io
import json
import sys
from pathlib import Path
from unittest.mock import MagicMock, patch
import pytest
from flask import Flask
project_root = Path(__file__).parent.parent.parent
sys.path.insert(0, str(project_root))
from web_interface.blueprints.api_v3 import api_v3 # noqa: E402
URL = "/api/v3/backup/restore"
_MANAGER_ATTRS = (
'config_manager', 'plugin_catalog', 'plugin_store_manager',
'saved_repositories_manager', 'schema_manager',
'operation_queue', 'operation_history', 'cache_manager',
)
_SENTINEL = object()
class FakeResult:
"""Stand-in for backup_manager.RestoreResult."""
def __init__(self, success=True, restored=None, errors=None,
plugins_to_install=None):
self.success = success
self.restored = restored if restored is not None else ["config"]
self.errors = errors or []
self.plugins_to_install = plugins_to_install or []
self.plugins_installed = []
self.plugins_failed = []
def to_dict(self):
return {
"success": self.success,
"restored": self.restored,
"errors": self.errors,
"plugins_installed": self.plugins_installed,
"plugins_failed": self.plugins_failed,
}
@pytest.fixture
def client():
originals = {name: getattr(api_v3, name, _SENTINEL) for name in _MANAGER_ATTRS}
for name in _MANAGER_ATTRS:
setattr(api_v3, name, MagicMock())
app = Flask(__name__)
app.config["TESTING"] = True
app.register_blueprint(api_v3, url_prefix="/api/v3")
yield app.test_client()
for name, original in originals.items():
if original is _SENTINEL:
if hasattr(api_v3, name):
delattr(api_v3, name)
else:
setattr(api_v3, name, original)
@pytest.fixture
def restore():
"""Patch backup_manager.restore_backup (imported inside the handler)."""
with patch("src.backup_manager.restore_backup") as mock:
mock.return_value = FakeResult()
yield mock
def post(client, options=None, filename="backup.zip", content=b"PK\x03\x04fake"):
data = {"backup_file": (io.BytesIO(content), filename)}
if options is not None:
data["options"] = options
return client.post(URL, data=data, content_type="multipart/form-data")
class TestRequestValidation:
def test_missing_file_is_a_400(self, client, restore):
response = client.post(URL, data={}, content_type="multipart/form-data")
assert response.status_code == 400
assert "No backup_file" in response.get_json()["message"]
restore.assert_not_called()
def test_absent_options_defaults_to_a_full_restore(self, client, restore):
# Documented default, not the bug: omitting options entirely means
# "restore everything".
post(client)
options = restore.call_args[0][2]
assert options.restore_config is True
assert options.restore_secrets is True
assert options.reinstall_plugins is True
def test_partial_options_are_honoured(self, client, restore):
post(client, options=json.dumps({
"restore_secrets": False, "reinstall_plugins": False}))
options = restore.call_args[0][2]
assert options.restore_secrets is False
assert options.reinstall_plugins is False
assert options.restore_config is True # unspecified stays default
@pytest.mark.parametrize("raw", ["{not json", "", "{'single': 'quotes'}"])
def test_malformed_options_are_refused(self, client, restore, raw):
# Regression: this fell back to {}, and every flag defaults to
# True, so a caller asking for a narrow restore and mis-serializing
# it got a full one — secrets overwritten — and no warning.
response = post(client, options=raw)
assert response.status_code == 400
assert "Invalid options" in response.get_json()["message"]
restore.assert_not_called()
@pytest.mark.parametrize("raw", ["[1,2,3]", '"a string"', "42", "true", "null"])
def test_options_that_are_not_an_object_are_refused(self, client, restore, raw):
response = post(client, options=raw)
assert response.status_code == 400
restore.assert_not_called()
def test_empty_object_is_accepted_as_all_defaults(self, client, restore):
assert post(client, options="{}").status_code == 200
assert restore.call_args[0][2].restore_config is True
def test_unknown_option_key_is_refused(self, client, restore):
# Regression: opts_dict.get('restore_secrets', True) silently
# ignores a typo'd/renamed key like "restoreSecrets" and keeps the
# True default, restoring secrets a caller's request clearly meant
# to exclude -- with no indication anything was wrong.
response = post(client, options=json.dumps({"restoreSecrets": False}))
assert response.status_code == 400
assert "Unknown restore option" in response.get_json()["message"]
assert "restoreSecrets" in response.get_json()["message"]
restore.assert_not_called()
def test_known_and_unknown_keys_together_are_refused(self, client, restore):
response = post(client, options=json.dumps({
"restore_secrets": False, "restore_everything": True}))
assert response.status_code == 400
restore.assert_not_called()
class TestOptionsAreBooleanAware:
"""Regression: bool("false") is True in Python.
Every restore flag used bare bool() coercion, so a caller that sends its
options as JSON strings rather than real booleans -- a form field, a
hand-built request -- had `{"restore_secrets": "false"}` restore secrets
anyway, the opposite of what was asked. Fixed with the same
string-aware `_coerce_to_bool` already used for checkbox-style config
fields elsewhere in this package (config.py, plugins.py).
"""
@pytest.mark.parametrize("raw,expected", [
("false", False), ("False", False), ("FALSE", False),
("0", False),
("true", True), ("True", True), ("1", True),
])
def test_string_valued_flags_are_parsed_not_just_truthy(
self, client, restore, raw, expected):
post(client, options=json.dumps({"restore_secrets": raw}))
assert restore.call_args[0][2].restore_secrets is expected
def test_a_string_false_does_not_restore_secrets(self, client, restore):
# The exact shape of the bug: a truthy non-empty string coerced by
# bare bool() to True regardless of its contents.
post(client, options=json.dumps({"restore_secrets": "false"}))
assert restore.call_args[0][2].restore_secrets is False
def test_real_json_booleans_still_work(self, client, restore):
post(client, options=json.dumps({"restore_secrets": False,
"restore_config": True}))
options = restore.call_args[0][2]
assert options.restore_secrets is False
assert options.restore_config is True
class TestSuccess:
def test_success_returns_the_result(self, client, restore):
restore.return_value = FakeResult(success=True, restored=["config", "secrets"])
response = post(client)
assert response.status_code == 200
body = response.get_json()
assert body["status"] == "success"
assert body["data"]["restored"] == ["config", "secrets"]
def test_temp_file_is_cleaned_up(self, client, restore):
seen = {}
def capture(path, project_root, options):
seen["path"] = Path(path)
assert seen["path"].exists() # present while restoring
return FakeResult()
restore.side_effect = capture
post(client)
assert not seen["path"].exists()
def test_temp_file_cleaned_up_even_when_restore_raises(self, client, restore):
seen = {}
def blow_up(path, project_root, options):
seen["path"] = Path(path)
raise RuntimeError("corrupt archive")
restore.side_effect = blow_up
response = post(client)
assert response.status_code == 500
assert not seen["path"].exists()
class TestPluginReinstall:
def test_plugins_are_reinstalled_when_requested(self, client, restore):
restore.return_value = FakeResult(
plugins_to_install=[{"plugin_id": "clock"}, {"plugin_id": "weather"}])
api_v3.plugin_store_manager.install_plugin.return_value = True
response = post(client)
assert response.status_code == 200
assert response.get_json()["data"]["plugins_installed"] == ["clock", "weather"]
def test_reinstall_skipped_when_not_requested(self, client, restore):
restore.return_value = FakeResult(plugins_to_install=[{"plugin_id": "clock"}])
post(client, options=json.dumps({"reinstall_plugins": False}))
api_v3.plugin_store_manager.install_plugin.assert_not_called()
def test_entries_without_a_plugin_id_are_skipped(self, client, restore):
restore.return_value = FakeResult(plugins_to_install=[{}, {"plugin_id": "clock"}])
api_v3.plugin_store_manager.install_plugin.return_value = True
post(client)
assert api_v3.plugin_store_manager.install_plugin.call_count == 1
def test_failed_reinstall_turns_the_whole_restore_into_an_error(
self, client, restore):
# Pinned as intentional: file restoration succeeded and does not
# touch result.errors, but a user whose plugins did not come back
# should not be told the restore was a success.
restore.return_value = FakeResult(
success=True, plugins_to_install=[{"plugin_id": "clock"}])
api_v3.plugin_store_manager.install_plugin.return_value = False
response = post(client)
assert response.status_code == 500
body = response.get_json()
assert body["status"] == "error"
assert "clock" in body["message"]
def test_message_names_what_landed_and_what_did_not(self, client, restore):
restore.return_value = FakeResult(
success=True, restored=["config", "fonts"],
plugins_to_install=[{"plugin_id": "clock"}])
api_v3.plugin_store_manager.install_plugin.return_value = False
message = post(client).get_json()["message"]
assert "restored: config, fonts" in message
assert "plugins not reinstalled: clock" in message
def test_install_exception_is_recorded_without_leaking_details(
self, client, restore):
restore.return_value = FakeResult(plugins_to_install=[{"plugin_id": "clock"}])
api_v3.plugin_store_manager.install_plugin.side_effect = RuntimeError(
"/srv/internal/path exploded")
body = post(client).get_json()
failures = body["data"]["plugins_failed"]
assert failures[0]["plugin_id"] == "clock"
assert "/srv/internal/path" not in json.dumps(body)
def test_missing_store_manager_is_reported_per_plugin(self, client, restore):
restore.return_value = FakeResult(plugins_to_install=[{"plugin_id": "clock"}])
api_v3.plugin_store_manager = None
body = post(client).get_json()
assert body["data"]["plugins_failed"][0]["error"] == "Store manager unavailable"
class TestFailureReporting:
def test_restore_errors_produce_a_500(self, client, restore):
restore.return_value = FakeResult(
success=False, restored=[], errors=["config: permission denied"])
response = post(client)
assert response.status_code == 500
assert "permission denied" in response.get_json()["message"]
def test_partial_restore_names_both_sides(self, client, restore):
restore.return_value = FakeResult(
success=False, restored=["config"], errors=["secrets: unwritable"])
message = post(client).get_json()["message"]
assert "restored: config" in message
assert "failed: secrets: unwritable" in message
def test_failure_without_detail_still_says_something(self, client, restore):
restore.return_value = FakeResult(success=False, restored=[], errors=[])
message = post(client).get_json()["message"]
assert "Restore incomplete" in message
def test_unexpected_exception_is_a_500(self, client, restore):
restore.side_effect = RuntimeError("boom")
response = post(client)
assert response.status_code == 500
assert response.get_json()["status"] == "error"