Files
ha-nvidia-shield/tests/entity_stublib.py
T
James Mackay 130dee4bc6 test(ci): sweep every module for dangling imports (t41)
Two defects shipped with a green suite: button.py imported a helper that had
been deleted (no harness ever loaded the file), and the drift sweep only judged
`homeassistant.*`, so a relative import of a name that no longer exists was
invisible to it. Both are now impossible to ship silently.

* tests/test_module_coverage.py loads EVERY *.py file of the package, in a clean
  interpreter, under the stub harness — exhaustive by construction (a new
  platform is covered the moment the file exists; there is no list and no
  special case). It asserts the reported set equals the files on disk, so a
  silently skipped module fails too;
* entity_stublib.load_entity_modules() now also loads button.py (the named gap);
  the sweep is what keeps that list from needing to be complete;
* ha_api_drift gained pass 5: the package's own relative imports. Pure AST,
  no homeassistant required, with its own entry point
  `scan_package_imports()` for the fast suite — it checks the target file exists
  and defines every imported name (submodule imports still resolve), instead of
  trusting that the modules a harness happened to load are the ones that matter;
* the file walk in both AST passes is recursive, and the non-vacuity floors moved
  with it (modules 10 → 20, relative_imports ≥ 100 — a shallow-glob regression
  trips the floor instead of looking green);
* two permanent red proofs, both on a copy of the tree with the reverted
  `from .helpers import discover_adb_host` reference in button.py: the stub-harness
  sweep fails with "FAIL button.py", and the static pass fails with
  "button.py:1: broken-relative-import: … not defined in helpers.py". Manual runs
  confirm the engine's other direction on the real pre-fix tree (c588a7c: exit 1
  with the t40 entity-contract finding) and exit 0 on HEAD.

No Home-Assistant API drift (23 modules, 58 imports, 148 relative imports, 36
call arguments, 6 awaited HA calls). Verified: 334 passed / 2 skipped, 335 / 1
with androidtvremote2, ruff clean.

Note (pre-existing, not introduced here): running a SUBSET of test files in an
order the suite was not written for (e.g. test_init.py alone after
test_standalone_setup.py) fails 3 import-step tests with
"ModuleNotFoundError: No module named 'voluptuous'" — the per-file stub scoping
assumes the suite's order. Verified identical on the pre-t41 tree (60d884b), so
it is left alone here.
2026-10-11 06:25:45 +01:00

507 lines
18 KiB
Python

"""Home-Assistant object stubs sized to unit-test the entity modules (t10).
Import-only stubs: MediaPlayerEntity/RemoteEntity bases, the feature/state
enum values the integration actually uses, and the event helpers. Tests load
their entity module through the synthetic ``nsh`` package AFTER calling
:func:`install` (and the per-file fixture pops everything at teardown).
"""
import asyncio
import enum
import sys
import types
from collections.abc import Mapping
import voluptuous_mirror
ENTITIES_STUB_NAMES = (
"voluptuous",
"homeassistant",
"homeassistant.config_entries",
"homeassistant.exceptions",
"homeassistant.core",
"homeassistant.const",
"homeassistant.components",
"homeassistant.components.media_player",
"homeassistant.components.remote",
"homeassistant.components.button",
"homeassistant.helpers",
"homeassistant.helpers.entity_registry",
"homeassistant.helpers.device_registry",
"homeassistant.helpers.selector",
"homeassistant.helpers.event",
"homeassistant.helpers.redact",
"homeassistant.helpers.entity",
"homeassistant.helpers.entity_platform",
"nsh.helpers",
"nsh.power",
"nsh.jellyfin",
"nsh.media_player",
"nsh.diagnostics",
"nsh.remote",
)
class MediaPlayerState(enum.StrEnum):
OFF = "off"
ON = "on"
IDLE = "idle"
PLAYING = "playing"
PAUSED = "paused"
class MediaPlayerEntityFeature(enum.IntFlag):
PLAY = 1
PAUSE = 2
STOP = 4
VOLUME_MUTE = 8
VOLUME_STEP = 16
VOLUME_SET = 32
BROWSE_MEDIA = 4096
TURN_ON = 64
TURN_OFF = 128
PLAY_MEDIA = 256
NEXT_TRACK = 512
PREVIOUS_TRACK = 1024
class MediaClass:
"""homeassistant.components.media_player.MediaClass (values we use)."""
APP = "app"
DIRECTORY = "directory"
class MediaType:
"""homeassistant.components.media_player.MediaType (values we use)."""
APP = "app"
APPS = "apps"
class BrowseMedia:
"""The REAL media_player.BrowseMedia shape (t37 D1).
Keyword-only with the six arguments real HA requires, the optional ones it
accepts, a faithful ``as_dict`` and — crucially — NO ``domain`` parameter:
``BrowseMediaSource`` lives in
``homeassistant.components.media_source.models`` (its contract is the
``media_source://<domain>`` id) and is NOT importable from
``homeassistant.components.media_player`` at all. The old import and the
old ``domain=`` kwarg therefore fail IN-SUITE instead of hiding behind a
permissive stub.
"""
def __init__(
self,
*,
media_class,
media_content_id,
media_content_type,
title,
can_play,
can_expand,
children=None,
children_media_class=None,
thumbnail=None,
not_shown=0,
can_search=False,
search_media_classes=None,
):
self.media_class = media_class
self.media_content_id = media_content_id
self.media_content_type = media_content_type
self.title = title
self.can_play = can_play
self.can_expand = can_expand
self.children = children
self.children_media_class = children_media_class
self.thumbnail = thumbnail
self.not_shown = not_shown
self.can_search = can_search
self.search_media_classes = search_media_classes
def as_dict(self, *, parent=True):
"""Real payload conversion — what the frontend actually consumes."""
if self.children_media_class is None and self.children:
self.calculate_children_class()
response = {
"title": self.title,
"media_class": self.media_class,
"media_content_type": self.media_content_type,
"media_content_id": self.media_content_id,
"children_media_class": self.children_media_class,
"can_play": self.can_play,
"can_expand": self.can_expand,
"can_search": self.can_search,
"search_media_classes": self.search_media_classes,
"thumbnail": self.thumbnail,
}
if not parent:
return response
response["not_shown"] = self.not_shown
response["children"] = (
[child.as_dict(parent=False) for child in self.children]
if self.children
else []
)
return response
def calculate_children_class(self):
"""Real helper: the children's common class, else DIRECTORY."""
self.children_media_class = MediaClass.DIRECTORY
assert self.children is not None
proposed_class = self.children[0].media_class
if all(child.media_class == proposed_class for child in self.children):
self.children_media_class = proposed_class
class MediaEntityManager:
"""trivial stand-in for the HA platform internals we don't exercise."""
class MediaPlayerEntity:
"""Base entity: attributes only; state writing is a no-op."""
def async_write_ha_state(self) -> None:
return None
class RemoteEntity:
def async_write_ha_state(self) -> None:
return None
def install() -> None:
"""Register the stub modules (idempotent)."""
if "homeassistant.components.media_player" in sys.modules:
return
vol = types.ModuleType("voluptuous")
# t33 F-A: the faithful mirror keeps schema defaults visible — a bare-key
# stub cannot tell a schema WITH a default from one without.
voluptuous_mirror.install(vol)
sys.modules["voluptuous"] = vol
ha = types.ModuleType("homeassistant")
sys.modules["homeassistant"] = ha
config_entries = types.ModuleType("homeassistant.config_entries")
config_entries.ConfigEntry = type("ConfigEntry", (), {})
async def _stub_set_unique_id(self, unique_id):
# hub shape: record; a full flow test file scopes its own version
self._unique_id = unique_id
def _noop_abort(self, *, error=None, **kwargs):
return None
class _ConfigFlowStub:
"""ConfigFlow shape used by entity tests (t29 G3a API included).
Late loads under the hub stubs (e.g. test_init designs run AFTER the
other flow files) still get the base plumbing the flow modules rely
on — show/create/abort/unique-id — so the flow classes never import
against a bare base.
"""
async_set_unique_id = _stub_set_unique_id
_abort_if_unique_id_configured = _noop_abort
async def _async_handle_discovery_without_unique_id(self):
# t37 D3: the real helper is a COROUTINE and core awaits it — a
# sync stub here would turn the production `await` into a
# TypeError. The abort semantics live in
# tests/test_standalone_setup.py, whose stub owns entry/in-progress
# state; at hub scope there is nothing to abort on.
return None
def async_show_form(
self, *, step_id, data_schema=None, errors=None,
description_placeholders=None,
):
return {
"type": "form",
"step_id": step_id,
"errors": dict(errors or {}),
"data_schema": data_schema,
"description_placeholders": dict(description_placeholders or {}),
}
def async_create_entry(self, *, title, data, options=None):
return {"type": "create_entry", "title": title, "data": data}
def async_abort(self, *, reason):
return {"type": "abort", "reason": reason}
def _get_reauth_entry(self, entry=None):
if entry is not None:
return entry
return None # the caller's cached entry is used
def _get_reconfigure_entry(self, entry=None):
if entry is not None:
return entry
return None # the caller's cached entry is used
# NOTE: the real HA signature is async_update_reload_and_abort(entry, ...)
# which updates, schedules the reload and aborts; the stub records both.
def async_update_reload_and_abort(self, entry, **kwargs):
"""Real-HA semantics: update, schedule the reload, abort."""
updates = kwargs.get("options_updates") or kwargs.get("data_updates") or {}
for key, value in updates.items():
if key in ("options", "data", "unique_id"):
setattr(entry, key, value)
else:
getattr(entry, "options", {}).setdefault(key, value) # best effort
scheduler = getattr(self.hass, "config_entries", None)
if scheduler is not None and hasattr(
scheduler, "async_schedule_reload"
):
scheduler.async_schedule_reload(entry.entry_id)
return self.async_abort(reason="reauth_successful")
def _config_flow_init(self, *args, **kwargs):
self.context = getattr(self, "context", {}) or {}
self.hass = getattr(self, "hass", None)
_config_flow_base = type(
"ConfigFlow",
(_ConfigFlowStub,),
{
"__init_subclass__": classmethod(
lambda cls, domain=None, **kwargs: None
),
"__init__": _config_flow_init,
},
)
config_entries.ConfigFlow = _config_flow_base
class _OptionsFlowStub:
def __init__(self):
self.config_entry = None
def add_suggested_values_to_schema(self, schema, suggested):
# real HA merges hints; the stub records them on the schema dict
schema_dict = getattr(schema, "schema", None) or (
schema if isinstance(schema, dict) else {}
)
schema_dict.setdefault("__suggested__", dict(suggested))
return schema
class _OptionsFlowWithReload(_OptionsFlowStub):
"""Options flow that reloads after a successful save (real HA)."""
def async_create_entry(self, *, title, data, options=None):
entry_id = getattr(self.config_entry, "entry_id", None)
scheduler = getattr(getattr(self, "hass", None), "config_entries", None)
if entry_id is not None and scheduler is not None and hasattr(
scheduler, "async_schedule_reload"
):
scheduler.async_schedule_reload(entry_id)
return {"type": "create_entry", "title": title, "data": data}
config_entries.OptionsFlow = _OptionsFlowStub
config_entries.SOURCE_IMPORT = "import"
config_entries.OptionsFlowWithReload = _OptionsFlowWithReload
sys.modules["homeassistant.config_entries"] = config_entries
exceptions = types.ModuleType("homeassistant.exceptions")
class ServiceValidationErrorStubError(Exception):
def __init__(self, *args, **kwargs):
super().__init__(*args or (kwargs.get("translation_key"),))
self.translation_domain = kwargs.get("translation_domain")
self.translation_key = kwargs.get("translation_key")
exceptions.ServiceValidationError = ServiceValidationErrorStubError
sys.modules["homeassistant.exceptions"] = exceptions
core = types.ModuleType("homeassistant.core")
core.HomeAssistant = object
core.callback = lambda fn: fn
core.CALLBACK_TYPE = object
core.Event = object
sys.modules["homeassistant.core"] = core
ha_const = types.ModuleType("homeassistant.const")
ha_const.EVENT_HOMEASSISTANT_STOP = "homeassistant_stop"
ha_const.STATE_PLAYING = "playing"
ha_const.STATE_PAUSED = "paused"
ha_const.Platform = types.SimpleNamespace(
MEDIA_PLAYER="media_player",
SENSOR="sensor",
REMOTE="remote",
BUTTON="button",
)
sys.modules["homeassistant.const"] = ha_const
components = types.ModuleType("homeassistant.components")
components.__path__ = []
sys.modules["homeassistant.components"] = components
mp = types.ModuleType("homeassistant.components.media_player")
mp.MediaPlayerEntity = MediaPlayerEntity
mp.MediaPlayerDeviceClass = types.SimpleNamespace(TV="tv")
mp.MediaPlayerEntityFeature = MediaPlayerEntityFeature
mp.BrowseMedia = BrowseMedia
mp.MediaClass = MediaClass
mp.MediaType = MediaType
# NOTE (t37 D1): homeassistant.components.media_player exposes NO
# BrowseMediaSource — deliberately not stubbed, so the drifted import
# fails here exactly as it does in a real install.
mp.MediaPlayerState = MediaPlayerState
sys.modules["homeassistant.components.media_player"] = mp
remote = types.ModuleType("homeassistant.components.remote")
remote.RemoteEntity = RemoteEntity
sys.modules["homeassistant.components.remote"] = remote
button = types.ModuleType("homeassistant.components.button")
button.ButtonEntity = type("ButtonEntity", (), {})
sys.modules["homeassistant.components.button"] = button
sensor_platform = types.ModuleType("homeassistant.components.sensor")
sensor_platform.SensorEntity = type("SensorEntity", (), {})
sensor_platform.SensorDeviceClass = types.SimpleNamespace(APP="app")
sys.modules["homeassistant.components.sensor"] = sensor_platform
helpers = types.ModuleType("homeassistant.helpers")
entity_registry = types.ModuleType("homeassistant.helpers.entity_registry")
class _Registry:
entities: dict = {}
def async_get(self, entity_id):
return None
entity_registry.async_get = lambda hass: _Registry()
device_registry = types.ModuleType("homeassistant.helpers.device_registry")
class _DeviceRegistry:
def __init__(self):
self.devices: dict[str, object] = {}
def async_get(self, device_id):
return self.devices.get(device_id)
_device_registry_shared = _DeviceRegistry()
device_registry.async_get = lambda hass: _device_registry_shared
sys.modules["homeassistant.helpers.device_registry"] = device_registry
helpers.entity_registry = entity_registry
sys.modules["homeassistant.helpers.entity_registry"] = entity_registry
helpers.device_registry = device_registry
sys.modules["homeassistant.helpers.device_registry"] = device_registry
event = types.ModuleType("homeassistant.helpers.event")
event.async_call_later = lambda hass, delay, callback_fn: (lambda: None)
event.async_track_state_change_event = lambda *args, **kwargs: (lambda: None)
helpers.event = event
helpers.selector = types.SimpleNamespace(
EntitySelector=lambda *a, **k: None,
EntitySelectorConfig=lambda *a, **k: "",
SelectSelector=lambda *a, **k: None,
SelectSelectorConfig=lambda **k: "",
SelectSelectorMode=types.SimpleNamespace(DROPDOWN="dropdown"),
)
entity = types.ModuleType("homeassistant.helpers.entity")
entity.DeviceInfo = dict
entity.EntityCategory = types.SimpleNamespace(
CONFIG="config", DIAGNOSTIC="diagnostic"
)
helpers.entity = entity
entity_platform = types.ModuleType("homeassistant.helpers.entity_platform")
entity_platform.AddEntitiesCallback = object
helpers.entity_platform = entity_platform
# t37 D2: homeassistant.helpers.redact.async_redact_data — the REAL helper
# (diagnostics.py imports it at module scope; `homeassistant.util.diagnostic`
# never existed). Modelled faithfully: the same masking of keys found in
# ``to_redact``, the same nested mapping/list recursion, the same skip of
# None/empty-string values.
redact = types.ModuleType("homeassistant.helpers.redact")
redact.REDACTED = "**REDACTED**"
def _stub_async_redact_data(data, to_redact):
if not isinstance(data, (Mapping, list)):
return data
if isinstance(data, list):
return [_stub_async_redact_data(val, to_redact) for val in data]
redacted = {**data}
for key, value in redacted.items():
if value is None:
continue
if isinstance(value, str) and not value:
continue
if key in to_redact:
if isinstance(to_redact, Mapping):
redacted[key] = to_redact[key](value)
else:
redacted[key] = redact.REDACTED
elif isinstance(value, Mapping):
redacted[key] = _stub_async_redact_data(value, to_redact)
elif isinstance(value, list):
redacted[key] = [
_stub_async_redact_data(item, to_redact) for item in value
]
return redacted
redact.async_redact_data = _stub_async_redact_data
helpers.redact = redact
sys.modules["homeassistant.helpers.redact"] = redact
sys.modules["homeassistant.helpers.event"] = event
sys.modules["homeassistant.helpers.entity"] = entity
sys.modules["homeassistant.helpers.entity_platform"] = entity_platform
sys.modules["homeassistant.helpers"] = helpers
def load_entity_modules() -> dict:
"""Load the integration's HA-free-ish entity modules under nsh."""
install()
from conftest import _SHIELD_DIR, _load_module
for name in (
"helpers",
"power",
"jellyfin",
"sensor",
"media_player",
"remote",
"diagnostics",
# t41: button.py was the file nobody loaded — a deleted helper it still
# imported shipped silently. It is a platform like the others, so it
# belongs here; tests/test_module_coverage.py sweeps EVERY module, which
# is what keeps this list from having to be complete.
"button",
"init",
): # "init" maps the integration __init__.py (t29 G8 async_setup)
if name == "init" and "nsh.init" in sys.modules:
continue
if f"nsh.{name}" not in sys.modules:
file_name = "__init__.py" if name == "init" else f"{name}.py"
_load_module(f"nsh.{name}", _SHIELD_DIR / file_name)
return {
name: sys.modules[f"nsh.{name}"]
for name in (
"power",
"jellyfin",
"sensor",
"media_player",
"remote",
"diagnostics",
)
}
class FakeHass:
"""Sized to entity unit tests: background tasks + no-op call_later."""
def async_create_task(self, coro):
return asyncio.create_task(coro)
def async_call_later(self, delay, callback_fn):
return lambda: None