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esphome/tests/component_tests/bluetooth_proxy/test_platform_gates.py
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"""The three platform-gate branches: BLE-less platforms are rejected with the
real reason, hub platforms reject GATT-only options by name, and the
advertisement-only arm applies its own defaults."""
from pathlib import Path
import re
import pytest
from esphome import config_validation as cv
from esphome.components import ble_device_base, bluetooth_connection, bluetooth_proxy
from esphome.config_helpers import frameworks_for_platforms
from esphome.const import (
CONF_ACTIVE,
KEY_CORE,
KEY_TARGET_FRAMEWORK,
KEY_TARGET_PLATFORM,
PLATFORM_BK72XX,
PLATFORM_ESP32,
PLATFORM_LN882X,
PLATFORM_RP2,
PlatformFramework,
)
from esphome.core import CORE
from ..types import SetCoreConfigCallable
# Advertisement-only hub platforms; rp2 runs the full proxy and has its own
# tests below.
HUB_PLATFORM_FRAMEWORKS = [
PlatformFramework.BK72XX_ARDUINO,
PlatformFramework.LN882X_ARDUINO,
]
HUB_TRACKERS = {
PLATFORM_BK72XX: "bk72xx_ble_tracker",
PLATFORM_LN882X: "ln882h_ble_tracker",
PLATFORM_RP2: "rp2_ble_tracker",
}
def test_hub_platform_list_covers_every_hub_platform() -> None:
# A platform added to _HUB_PLATFORMS would otherwise get no gate coverage
# at all; GATT platforms have their own tests.
advertisement_only = set(bluetooth_proxy._HUB_PLATFORMS) - set(
bluetooth_connection.HUB_MAX_CONNECTIONS
)
assert {pf.value[0] for pf in HUB_PLATFORM_FRAMEWORKS} == advertisement_only
assert set(HUB_TRACKERS) == set(bluetooth_proxy._HUB_PLATFORMS)
def _set_platform(platform: str | None) -> None:
# For arms set_core_config cannot express (bare platform, no framework).
CORE.data.setdefault(KEY_CORE, {})[KEY_TARGET_PLATFORM] = platform
def _register_tracker(platform: str) -> None:
# The ble_hub_id guard needs a loaded tracker, normally registered as an
# import side effect of the tracker module.
tracker = HUB_TRACKERS[platform]
ble_device_base.register_hub_provider(tracker)
CORE.loaded_integrations.add(tracker)
def test_ble_less_platform_gets_the_real_reason(
set_core_config: SetCoreConfigCallable,
) -> None:
set_core_config(PlatformFramework.ESP8266_ARDUINO)
with pytest.raises(cv.Invalid, match="not supported on esp8266"):
bluetooth_proxy.CONFIG_SCHEMA({})
def test_ble_less_platform_connection_keys_fall_through(
set_core_config: SetCoreConfigCallable,
) -> None:
# The key-level rejection must not fire here — it would imply an
# advertisement-only proxy exists on this platform.
set_core_config(PlatformFramework.ESP8266_ARDUINO)
with pytest.raises(cv.Invalid, match="not supported on esp8266"):
bluetooth_proxy.CONFIG_SCHEMA({"connection_slots": 2})
def test_no_target_platform_keeps_the_key_gate_out_of_the_way() -> None:
# set_core_config cannot express "no platform"; script/build_codeowners.py
# sets exactly this shape, and the key gate returns early on it so the
# platform gate is what reports.
CORE.data[KEY_CORE] = {KEY_TARGET_FRAMEWORK: None, KEY_TARGET_PLATFORM: None}
with pytest.raises(cv.Invalid, match="not supported on None"):
bluetooth_proxy.CONFIG_SCHEMA({"connection_slots": 2})
@pytest.mark.parametrize("platform_framework", HUB_PLATFORM_FRAMEWORKS)
def test_hub_platform_rejects_active(
set_core_config: SetCoreConfigCallable,
platform_framework: PlatformFramework,
) -> None:
set_core_config(platform_framework)
_register_tracker(platform_framework.value[0])
with pytest.raises(cv.Invalid, match="Active connections are not supported"):
bluetooth_proxy.CONFIG_SCHEMA({"active": True})
@pytest.mark.parametrize("platform_framework", HUB_PLATFORM_FRAMEWORKS)
@pytest.mark.parametrize(
("key", "value"),
[
("connection_slots", 2),
("cache_services", True),
# Absent from the outer CONFIG_SCHEMA, so this gate is the only test
# that touches it.
("connections", [{}]),
],
)
def test_hub_platform_rejects_connection_keys_by_name(
set_core_config: SetCoreConfigCallable,
platform_framework: PlatformFramework,
key: str,
value: object,
) -> None:
set_core_config(platform_framework)
with pytest.raises(cv.Invalid, match=f"'{key}' requires active"):
bluetooth_proxy.CONFIG_SCHEMA({key: value})
@pytest.mark.parametrize("platform_framework", HUB_PLATFORM_FRAMEWORKS)
def test_hub_platform_accepts_the_advertisement_only_shape(
set_core_config: SetCoreConfigCallable,
platform_framework: PlatformFramework,
) -> None:
set_core_config(platform_framework)
_register_tracker(platform_framework.value[0])
validated = bluetooth_proxy.CONFIG_SCHEMA({})
assert validated[CONF_ACTIVE] is False
def test_rp2_defaults_to_the_full_proxy(
set_core_config: SetCoreConfigCallable,
) -> None:
# esp32 parity: active defaults to true, with the platform's slot limit,
# and one populated connection entry for the codegen to index.
set_core_config(PlatformFramework.RP2_ARDUINO)
_register_tracker(PLATFORM_RP2)
validated = bluetooth_proxy.CONFIG_SCHEMA({})
assert validated[CONF_ACTIVE] is True
assert validated[bluetooth_proxy.CONF_CONNECTION_SLOTS] == 3
assert len(validated[bluetooth_proxy.CONF_CONNECTIONS]) == 3
def test_rp2_accepts_explicit_passive(
set_core_config: SetCoreConfigCallable,
) -> None:
set_core_config(PlatformFramework.RP2_ARDUINO)
_register_tracker(PLATFORM_RP2)
validated = bluetooth_proxy.CONFIG_SCHEMA({CONF_ACTIVE: False})
assert validated[CONF_ACTIVE] is False
assert bluetooth_proxy.CONF_CONNECTIONS not in validated
def test_rp2_rejects_slots_beyond_the_btstack_limit(
set_core_config: SetCoreConfigCallable,
) -> None:
# The BTstack pool overrides are sized for RP2_MAX_CONNECTIONS slots.
set_core_config(PlatformFramework.RP2_ARDUINO)
_register_tracker(PLATFORM_RP2)
with pytest.raises(cv.Invalid, match="at most 3 connection slot"):
bluetooth_proxy.CONFIG_SCHEMA({"connection_slots": 4})
# Fewer slots than the cap stay accepted (the prebuilt single-client pool
# path for 1, the wrap path for 2).
validated = bluetooth_proxy.CONFIG_SCHEMA({"connection_slots": 1})
assert len(validated[bluetooth_proxy.CONF_CONNECTIONS]) == 1
# Values past even the loosest platform cap stop at the outer walkable
# schema, which stays bounded for range walkers (device-builder sync);
# in-range values get the platform message above.
with pytest.raises(cv.Invalid, match="at most 9"):
bluetooth_proxy.CONFIG_SCHEMA({"connection_slots": 12})
def test_rp2_rejects_esp32_only_keys_by_name(
set_core_config: SetCoreConfigCallable,
) -> None:
set_core_config(PlatformFramework.RP2_ARDUINO)
_register_tracker(PLATFORM_RP2)
with pytest.raises(cv.Invalid, match="'cache_services' is esp32-only"):
bluetooth_proxy.CONFIG_SCHEMA({"cache_services": True})
with pytest.raises(cv.Invalid, match="'connections' has no per-connection options"):
bluetooth_proxy.CONFIG_SCHEMA({"connections": [{}]})
def test_hub_source_filter_covers_every_hub_platform() -> None:
# bluetooth_connection cannot import this module to derive the hub.cpp
# framework set, so pin it here: a platform admitted to the proxy but
# missing from the filter would validate, then fail at link.
expected = frameworks_for_platforms(
[*bluetooth_proxy._HUB_PLATFORMS, PLATFORM_ESP32]
)
hub_frameworks = bluetooth_connection.SOURCE_FILE_FRAMEWORKS[
"bluetooth_connection_hub.cpp"
]
assert expected == hub_frameworks
def test_bluetooth_connection_auto_load_covers_its_includes() -> None:
# The backend registers with its platform BLE stack (and the Bluedroid
# header includes the tracker's), so that closure lives here and
# consumers stay platform-blind; the platform-less arm is the union for
# manifest-resolving tooling.
_set_platform("esp32")
assert bluetooth_connection.AUTO_LOAD() == ["ble_device_base", "esp32_ble_tracker"]
_set_platform("rp2")
assert bluetooth_connection.AUTO_LOAD() == ["ble_device_base", "rp2040_ble"]
_set_platform("ln882x")
assert bluetooth_connection.AUTO_LOAD() == ["ble_device_base"]
_set_platform(None)
assert bluetooth_connection.AUTO_LOAD() == [
"ble_device_base",
"esp32_ble_tracker",
"rp2040_ble",
]
def test_every_registered_hub_platform_has_a_schema_arm() -> None:
# A platform added to HUB_MAX_CONNECTIONS without a schema builder or
# _HUB_PLATFORMS entry would only fail when a config for it is validated
# (or not even then); pin both couplings here. Connection codegen is
# shared (bluetooth_connection.new_gatt_backend), so it needs no arm.
registered = set(bluetooth_connection.HUB_MAX_CONNECTIONS)
assert registered <= set(bluetooth_proxy._GATT_HUB_SCHEMAS)
assert registered <= set(bluetooth_proxy._HUB_PLATFORMS)
# Hub platforms must also be in the backend registry the shared codegen
# helpers dispatch on.
assert registered <= set(bluetooth_connection._PLATFORM_BACKENDS)
# The outer walkable schema's bound must stay the loosest platform cap.
assert (
max(bluetooth_connection.HUB_MAX_CONNECTIONS.values())
<= bluetooth_proxy._IDF_MAX_CONNECTIONS
)
def test_defines_h_mirrors_the_rp2_slot_cap() -> None:
# esphome/core/defines.h carries a literal BLUETOOTH_PROXY_MAX_CONNECTIONS
# for static analysis; pin it to the real rp2 cap.
defines = (Path(__file__).parents[3] / "esphome" / "core" / "defines.h").read_text()
cap = bluetooth_connection.RP2_MAX_CONNECTIONS
# The rp2 arm's define, tolerating blank/comment lines in between.
match = re.search(
r"#elif defined\(USE_RP2\)\s*(?:(?://[^\n]*)?\n)+#define BLUETOOTH_PROXY_MAX_CONNECTIONS (\d+)",
defines,
)
assert match is not None, "no USE_RP2 arm defines BLUETOOTH_PROXY_MAX_CONNECTIONS"
assert int(match.group(1)) == cap, (
f"defines.h rp2 arm carries {match.group(1)}, expected {cap}"
)
# The static-analysis client count scales with the same cap. Scoped to
# the USE_RP2 block: the esp32 arm carries its own count.
rp2_block = re.search(r"#ifdef USE_RP2\n((?:#define [^\n]*\n)+)", defines)
assert rp2_block is not None, "no USE_RP2 platform block in defines.h"
match = re.search(
r"#define ESPHOME_BLE_GATT_CLIENT_COUNT (\d+)", rp2_block.group(1)
)
assert match is not None, "ESPHOME_BLE_GATT_CLIENT_COUNT missing from rp2 block"
assert int(match.group(1)) == cap, (
f"rp2 ESPHOME_BLE_GATT_CLIENT_COUNT is {match.group(1)}, expected {cap}"
)