Files
esphome/tests/unit_tests/test_config_normalization.py

252 lines
8.8 KiB
Python

"""Unit tests for esphome.config module."""
from collections.abc import Callable, Generator
import logging
from pathlib import Path
from unittest.mock import MagicMock, Mock, patch
import pytest
from esphome import config, yaml_util
from esphome.core import CORE, AutoLoad
from esphome.types import ConfigType
@pytest.fixture
def mock_get_platform() -> Generator[Mock, None, None]:
"""Fixture for mocking get_platform."""
with patch("esphome.config.get_platform") as mock_get_platform:
# Default mock platform
mock_get_platform.return_value = MagicMock()
yield mock_get_platform
@pytest.fixture
def fixtures_dir() -> Path:
"""Get the fixtures directory."""
return Path(__file__).parent / "fixtures"
def test_ota_component_configs_with_proper_platform_list(
mock_get_component: Mock,
mock_get_platform: Mock,
) -> None:
"""Test iter_component_configs handles OTA properly configured as a list."""
test_config = {
"ota": [
{"platform": "esphome", "password": "test123", "id": "my_ota"},
],
}
mock_get_component.return_value = MagicMock(
is_platform_component=True, multi_conf=False
)
configs = list(config.iter_component_configs(test_config))
assert len(configs) == 2
assert configs[0][0] == "ota"
assert configs[0][2] == test_config["ota"] # The list itself
assert configs[1][0] == "ota.esphome"
assert configs[1][2]["platform"] == "esphome"
assert configs[1][2]["password"] == "test123"
def test_iter_component_configs_with_multi_conf(mock_get_component: Mock) -> None:
"""Test that iter_component_configs handles multi_conf components correctly."""
test_config = {
"switch": [
{"name": "Switch 1"},
{"name": "Switch 2"},
],
}
mock_get_component.return_value = MagicMock(
is_platform_component=False, multi_conf=True
)
configs = list(config.iter_component_configs(test_config))
assert len(configs) == 2
for domain, _component, conf in configs:
assert domain == "switch"
assert "name" in conf
def test_ota_no_platform_with_captive_portal(fixtures_dir: Path) -> None:
"""Test OTA with no platform (ota:) gets normalized when captive_portal auto-loads."""
CORE.config_path = fixtures_dir / "dummy.yaml"
config_file = fixtures_dir / "ota_no_platform.yaml"
raw_config = yaml_util.load_yaml(config_file)
result = config.validate_config(raw_config, {})
assert "ota" in result
assert isinstance(result["ota"], list), f"Expected list, got {type(result['ota'])}"
platforms = {p.get("platform") for p in result["ota"]}
assert "web_server" in platforms, f"Expected web_server platform in {platforms}"
def test_ota_empty_dict_with_captive_portal(fixtures_dir: Path) -> None:
"""Test OTA with empty dict ({}) gets normalized when captive_portal auto-loads."""
CORE.config_path = fixtures_dir / "dummy.yaml"
config_file = fixtures_dir / "ota_empty_dict.yaml"
raw_config = yaml_util.load_yaml(config_file)
result = config.validate_config(raw_config, {})
assert "ota" in result
assert isinstance(result["ota"], list), f"Expected list, got {type(result['ota'])}"
platforms = {p.get("platform") for p in result["ota"]}
assert "web_server" in platforms, f"Expected web_server platform in {platforms}"
def test_ota_with_platform_list_and_captive_portal(fixtures_dir: Path) -> None:
"""Test OTA with proper platform list remains valid when captive_portal auto-loads."""
CORE.config_path = fixtures_dir / "dummy.yaml"
config_file = fixtures_dir / "ota_with_platform_list.yaml"
raw_config = yaml_util.load_yaml(config_file)
result = config.validate_config(raw_config, {})
assert "ota" in result
assert isinstance(result["ota"], list), f"Expected list, got {type(result['ota'])}"
platforms = {p.get("platform") for p in result["ota"]}
assert "esphome" in platforms, f"Expected esphome platform in {platforms}"
assert "web_server" in platforms, f"Expected web_server platform in {platforms}"
# ---------------------------------------------------------------------------
# LEGACY_CONFIG_MIGRATE hook on LoadValidationStep -- the removable shim that
# lets a platform component rewrite a pre-platform top-level config.
# ---------------------------------------------------------------------------
def _run_load_step(
domain: str,
conf: object,
migrate: Callable[[ConfigType], list | None] | None,
) -> config.Config:
"""Run a LoadValidationStep for a platform component with a given migrate hook."""
component = Mock()
component.is_platform_component = True
component.multi_conf_no_default = False
component.legacy_config_migrate = migrate
result = config.Config()
with (
patch("esphome.config.get_component", return_value=component),
patch("esphome.config._process_auto_load"),
patch("esphome.config._process_platform_config"),
):
config.LoadValidationStep(domain, conf).run(result)
return result
def test_legacy_migrate_rewrites_conf() -> None:
"""A legacy config that the hook migrates is replaced with the new list."""
migrated = [{"platform": "file", "id": "a"}]
migrate = Mock(return_value=migrated)
result = _run_load_step("image", [{"id": "a", "file": "x.png"}], migrate)
migrate.assert_called_once_with([{"id": "a", "file": "x.png"}])
assert result["image"] == migrated
def test_legacy_migrate_none_keeps_new_format() -> None:
"""When the hook returns None the already-new config is left untouched."""
new_format = [{"platform": "file", "id": "a"}]
migrate = Mock(return_value=None)
result = _run_load_step("image", new_format, migrate)
migrate.assert_called_once_with(new_format)
assert result["image"] == new_format
def test_legacy_migrate_absent_hook_is_noop() -> None:
"""A platform component without the hook normalizes without migration."""
result = _run_load_step("image", {"id": "a"}, None)
# Bare dict still gets wrapped into a list by the normal normalization path.
assert result["image"] == [{"id": "a"}]
def test_legacy_migrate_skipped_for_empty_conf() -> None:
"""An empty config short-circuits before the hook is consulted."""
migrate = Mock(return_value=[{"platform": "file"}])
result = _run_load_step("image", [], migrate)
migrate.assert_not_called()
assert result["image"] == []
def test_legacy_migrate_skipped_for_autoload() -> None:
"""An auto-loaded (AutoLoad) config is never migrated."""
migrate = Mock(return_value=[{"platform": "file"}])
auto = AutoLoad()
auto["id"] = "a"
result = _run_load_step("image", auto, migrate)
migrate.assert_not_called()
# AutoLoad is dict-like, so normalization wraps it into a single-entry list.
assert result["image"] == [auto]
def _write_merge_conflict_config(tmp_path: Path, *, suppress: bool) -> Path:
"""Create a config where two `<<` includes both define `logger:`.
The second `logger:` is dropped by the shallow merge. Returns the main file.
"""
(tmp_path / "a.yaml").write_text("logger:\n level: DEBUG\n")
(tmp_path / "b.yaml").write_text("logger:\n level: INFO\n")
esphome_section = "esphome:\n name: test\n"
if suppress:
esphome_section += " merge_warnings: false\n"
main = tmp_path / "main.yaml"
main.write_text(f"{esphome_section}<<: !include a.yaml\n<<: !include b.yaml\n")
return main
def test_validate_config_warns_on_dropped_merge_key(
tmp_path: Path, caplog: pytest.LogCaptureFixture
) -> None:
"""By default, a `<<` merge that drops a key logs a warning."""
main = _write_merge_conflict_config(tmp_path, suppress=False)
CORE.config_path = main
raw_config = yaml_util.load_yaml(main)
with caplog.at_level(logging.WARNING, logger="esphome.config"):
config.validate_config(raw_config, {})
assert any(
"was dropped while processing a '<<' merge" in record.message
and "logger" in record.message
for record in caplog.records
)
# The queue is drained so the warning cannot leak into a later run.
assert yaml_util.take_dropped_merge_keys() == []
def test_validate_config_suppresses_merge_warning(
tmp_path: Path, caplog: pytest.LogCaptureFixture
) -> None:
"""`esphome: merge_warnings: false` hides the warning but still drains the queue."""
main = _write_merge_conflict_config(tmp_path, suppress=True)
CORE.config_path = main
raw_config = yaml_util.load_yaml(main)
with caplog.at_level(logging.WARNING, logger="esphome.config"):
config.validate_config(raw_config, {})
assert not any(
"was dropped while processing a '<<' merge" in record.message
for record in caplog.records
)
# The queue is drained even when the warning is suppressed.
assert yaml_util.take_dropped_merge_keys() == []