Files
esphome/tests/component_tests/network/test_priority.py
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271 lines
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Python

"""Tests for the ``network: priority:`` list validator."""
from collections.abc import Callable
from pathlib import Path
import re
import pytest
from voluptuous import Invalid
from esphome.components.network import (
_SETUP_PRIORITY_AFTER_WIFI,
KEY_NETWORK_PRIORITY,
NETWORK_PRIORITY_BASE,
NETWORK_PRIORITY_STEP,
_final_validate,
_validate_priority_list,
get_network_priority,
)
from esphome.const import CONF_PRIORITY, PlatformFramework
from esphome.core import CORE
import esphome.final_validate as fv
from tests.component_tests.types import SetCoreConfigCallable
@pytest.fixture(autouse=True)
def _clear_core_data():
"""Wipe CORE.data and reset fv.full_config so each test starts clean."""
CORE.data.clear()
token = fv.full_config.set({})
yield
fv.full_config.reset(token)
CORE.data.clear()
def test_validates_plain_string_list() -> None:
result = _validate_priority_list(["ethernet", "wifi"])
assert result == [{"interface": "ethernet"}, {"interface": "wifi"}]
def test_normalizes_mixed_case_to_lowercase() -> None:
# Regression check: mixed-case input must be lowercased so downstream
# callers like get_network_priority("ethernet") find a match.
result = _validate_priority_list(["Ethernet", "WIFI"])
assert result == [{"interface": "ethernet"}, {"interface": "wifi"}]
def test_accepts_all_supported_interface_types() -> None:
# Only ethernet and wifi are currently accepted. Other interface types
# (openthread, modem) will be added when their setup-priority consumers
# land — see NETWORK_PLAN.md.
result = _validate_priority_list(["ethernet", "wifi"])
assert [e["interface"] for e in result] == ["ethernet", "wifi"]
def test_rejects_not_yet_supported_interface() -> None:
# openthread / modem are in the long-term roadmap but no setup-priority
# consumer is wired yet, so VALID_NETWORK_TYPES excludes them today.
with pytest.raises(Invalid):
_validate_priority_list(["ethernet", "openthread"])
with pytest.raises(Invalid):
_validate_priority_list(["wifi", "modem"])
def test_single_interface_is_valid() -> None:
result = _validate_priority_list(["ethernet"])
assert result == [{"interface": "ethernet"}]
def test_rejects_unknown_interface() -> None:
with pytest.raises(Invalid):
_validate_priority_list(["ethernet", "bluetooth"])
def test_rejects_duplicate_entries() -> None:
with pytest.raises(Invalid, match="Duplicate entries"):
_validate_priority_list(["ethernet", "ethernet"])
def test_rejects_duplicates_regardless_of_case() -> None:
# Same interface in mixed cases should still trip the duplicate check
# after normalization.
with pytest.raises(Invalid, match="Duplicate entries"):
_validate_priority_list(["ethernet", "Ethernet"])
def test_rejects_mapping_form() -> None:
# The mapping form (- ethernet: { timeout: 30s }) was removed when the
# timeout option moved to its consumer PR. Verify we reject it cleanly
# instead of silently accepting a no-op.
with pytest.raises(Invalid):
_validate_priority_list([{"ethernet": {"timeout": "30s"}}])
def test_get_network_priority_returns_none_when_unset() -> None:
assert get_network_priority("ethernet") is None
def test_get_network_priority_assigns_base_to_first_entry() -> None:
CORE.data[KEY_NETWORK_PRIORITY] = _validate_priority_list(["ethernet", "wifi"])
assert get_network_priority("ethernet") == NETWORK_PRIORITY_BASE
def test_get_network_priority_steps_down_by_step_per_position() -> None:
CORE.data[KEY_NETWORK_PRIORITY] = _validate_priority_list(["ethernet", "wifi"])
assert get_network_priority("wifi") == NETWORK_PRIORITY_BASE - NETWORK_PRIORITY_STEP
def test_get_network_priority_is_case_insensitive_on_query() -> None:
CORE.data[KEY_NETWORK_PRIORITY] = _validate_priority_list(["ethernet"])
assert get_network_priority("Ethernet") == NETWORK_PRIORITY_BASE
def test_get_network_priority_returns_none_for_unlisted_interface() -> None:
CORE.data[KEY_NETWORK_PRIORITY] = _validate_priority_list(["ethernet"])
assert get_network_priority("wifi") is None
def test_final_validate_rejects_priority_iface_without_component() -> None:
"""An interface named in 'priority' with no matching component block is rejected."""
# priority lists wifi, but only ethernet is present in the full config.
fv.full_config.set({"ethernet": {}})
config = {CONF_PRIORITY: _validate_priority_list(["ethernet", "wifi"])}
with pytest.raises(
Invalid, match=r"'wifi' is listed in 'network: priority:' but no 'wifi:'"
):
_final_validate(config)
def test_final_validate_accepts_when_all_priority_ifaces_present() -> None:
"""No error when every interface in 'priority' has a matching component block."""
fv.full_config.set({"ethernet": {}, "wifi": {}})
config = {CONF_PRIORITY: _validate_priority_list(["ethernet", "wifi"])}
_final_validate(config) # must not raise
def test_final_validate_noop_without_priority_list() -> None:
"""A network config without a 'priority' list imposes no component requirements."""
fv.full_config.set({})
_final_validate({}) # must not raise
def test_final_validate_rejects_unsupported_arbitration_interface(
set_core_config: SetCoreConfigCallable,
) -> None:
"""The ethernet/wifi-only arbitration tripwire fails as a clean config error.
Unreachable through the public schema today (VALID_NETWORK_TYPES gates the
list), so the config is hand-built to simulate a future interface type that
was added to the schema without extending NetworkComponent::loop().
"""
set_core_config(PlatformFramework.ESP32_IDF)
fv.full_config.set({"openthread": {}, "wifi": {}})
config = {CONF_PRIORITY: [{"interface": "openthread"}, {"interface": "wifi"}]}
with pytest.raises(Invalid, match="arbitration does not support: openthread"):
_final_validate(config)
def _cpp_setup_priority(name: str) -> float:
"""Read a setup_priority constant straight from esphome/core/component.h."""
header = Path(__file__).parents[3] / "esphome" / "core" / "component.h"
match = re.search(
rf"inline constexpr float {name} = ([\d.]+)f;", header.read_text()
)
assert match is not None, f"setup_priority::{name} not found in component.h"
return float(match.group(1))
def test_priority_band_constants_match_cpp_setup_priority() -> None:
"""The Python priority-band constants mirror the C++ setup_priority values.
NETWORK_PRIORITY_BASE must equal the historical setup_priority::WIFI /
::ETHERNET default so a single-entry priority list reproduces the legacy
setup order, and the band guard must track setup_priority::AFTER_WIFI.
Reading the values from component.h turns a silent desync into a CI
failure if either side is ever rebalanced.
"""
assert _cpp_setup_priority("WIFI") == NETWORK_PRIORITY_BASE
assert _cpp_setup_priority("ETHERNET") == NETWORK_PRIORITY_BASE
assert _cpp_setup_priority("AFTER_WIFI") == _SETUP_PRIORITY_AFTER_WIFI
# Must stay below AFTER_BLUETOOTH (NetworkComponent's own priority) so
# interfaces never set up before esp_netif_init().
assert _cpp_setup_priority("AFTER_BLUETOOTH") > NETWORK_PRIORITY_BASE
def test_wifi_first_priority_emits_primary_interface_define(
generate_main: Callable[[str | Path], str],
component_config_path: Callable[[str], Path],
) -> None:
"""A wifi-first priority list emits USE_NETWORK_PRIMARY_INTERFACE_WIFI."""
generate_main(component_config_path("priority_wifi_first.yaml"))
defines = {d.name for d in CORE.defines}
assert "USE_NETWORK_PRIMARY_INTERFACE_WIFI" in defines
# Emitted by cg.set_setup_priority() at the wifi/ethernet call sites.
assert "USE_SETUP_PRIORITY_OVERRIDE" in defines
def test_ethernet_first_priority_emits_no_primary_interface_define(
generate_main: Callable[[str | Path], str],
component_config_path: Callable[[str], Path],
) -> None:
"""Ethernet-first matches the built-in preference order, so no define is emitted."""
generate_main(component_config_path("priority_ethernet_first.yaml"))
assert not any(
d.name.startswith("USE_NETWORK_PRIMARY_INTERFACE_") for d in CORE.defines
)
# The setup-priority overrides themselves are still emitted.
assert "USE_SETUP_PRIORITY_OVERRIDE" in {d.name for d in CORE.defines}
def test_no_primary_interface_define_without_priority(
generate_main: Callable[[str | Path], str],
component_config_path: Callable[[str], Path],
) -> None:
"""Without a priority list, no primary-interface define is emitted."""
generate_main(component_config_path("wifi_only.yaml"))
assert not any(
d.name.startswith("USE_NETWORK_PRIMARY_INTERFACE_") for d in CORE.defines
)
def _dns_per_default_netif_option() -> bool | None:
from esphome.components.esp32.const import KEY_ESP32, KEY_SDKCONFIG_OPTIONS
if KEY_ESP32 not in CORE.data: # non-ESP32 configs have no sdkconfig at all
return None
return CORE.data[KEY_ESP32][KEY_SDKCONFIG_OPTIONS].get(
"CONFIG_ESP_NETIF_SET_DNS_PER_DEFAULT_NETIF"
)
@pytest.mark.parametrize(
"config_file",
[
"priority_wifi_first.yaml",
"priority_ethernet_first.yaml",
"priority_arduino.yaml",
],
)
def test_multi_interface_priority_enables_default_route_arbitration(
generate_main: Callable[[str | Path], str],
component_config_path: Callable[[str], Path],
config_file: str,
) -> None:
"""More than one interface in 'priority' enables default-route arbitration."""
generate_main(component_config_path(config_file))
assert "USE_NETWORK_DEFAULT_ROUTE" in {d.name for d in CORE.defines}
assert _dns_per_default_netif_option() is True
@pytest.mark.parametrize(
"config_file",
[
# Single-entry priority list / no list at all.
"priority_single.yaml",
"wifi_only.yaml",
# Dual-interface on rp2040: validates, but the arbitration is ESP32-only
# (NetworkComponent::loop() is compiled under USE_ESP32) — emitting the
# define here would be a hard build break.
"priority_rp2040.yaml",
],
)
def test_single_interface_has_no_default_route_arbitration(
generate_main: Callable[[str | Path], str],
component_config_path: Callable[[str], Path],
config_file: str,
) -> None:
"""Single-interface and non-ESP32 configs must not compile in the arbitration."""
generate_main(component_config_path(config_file))
assert "USE_NETWORK_DEFAULT_ROUTE" not in {d.name for d in CORE.defines}
assert _dns_per_default_netif_option() is None