Files
esphome/tests/unit_tests/test_cpp_helpers.py
T
J. Nick Koston a92281f899 Add tests for register_component_source, remove redundant index check
- Test empty name returns 0
- Test deduplication returns same index
- Test overflow warns and returns 0
- Remove duplicate index==0 check in get_component_log_str() since
  component_source_lookup() already handles it
2026-03-22 21:24:13 -10:00

112 lines
3.3 KiB
Python

import logging
from unittest.mock import Mock
import pytest
from esphome import const, cpp_helpers as ch
from esphome.cpp_helpers import ComponentSourcePool, register_component_source
@pytest.mark.asyncio
async def test_gpio_pin_expression__conf_is_none(monkeypatch):
actual = await ch.gpio_pin_expression(None)
assert actual is None
@pytest.mark.asyncio
async def test_register_component(monkeypatch):
base_mock = Mock()
base_mock.__str__ = lambda self: "foo.bar"
base_mock.type = Mock()
base_mock.type.__str__ = lambda self: "foo::Bar"
var = Mock(base=base_mock)
app_mock = Mock(register_component_=Mock(return_value=var))
monkeypatch.setattr(ch, "App", app_mock)
core_mock = Mock(component_ids=["foo.bar"], data={})
monkeypatch.setattr(ch, "CORE", core_mock)
add_mock = Mock()
monkeypatch.setattr(ch, "add", add_mock)
actual = await ch.register_component(var, {})
assert actual is var
assert add_mock.call_count == 2
app_mock.register_component_.assert_called_with(var)
assert core_mock.component_ids == []
@pytest.mark.asyncio
async def test_register_component__no_component_id(monkeypatch):
var = Mock(base="foo.eek")
core_mock = Mock(component_ids=["foo.bar"])
monkeypatch.setattr(ch, "CORE", core_mock)
with pytest.raises(ValueError, match="Component ID foo.eek was not declared to"):
await ch.register_component(var, {})
@pytest.mark.asyncio
async def test_register_component__with_setup_priority(monkeypatch):
base_mock = Mock()
base_mock.__str__ = lambda self: "foo.bar"
base_mock.type = Mock()
base_mock.type.__str__ = lambda self: "foo::Bar"
var = Mock(base=base_mock)
app_mock = Mock(register_component_=Mock(return_value=var))
monkeypatch.setattr(ch, "App", app_mock)
core_mock = Mock(component_ids=["foo.bar"], data={})
monkeypatch.setattr(ch, "CORE", core_mock)
add_mock = Mock()
monkeypatch.setattr(ch, "add", add_mock)
actual = await ch.register_component(
var,
{
const.CONF_SETUP_PRIORITY: "123",
const.CONF_UPDATE_INTERVAL: "456",
},
)
assert actual is var
add_mock.assert_called()
assert add_mock.call_count == 4
app_mock.register_component_.assert_called_with(var)
assert core_mock.component_ids == []
def test_register_component_source_empty_name(monkeypatch):
monkeypatch.setattr(ch, "CORE", Mock(data={}))
assert register_component_source("") == 0
def test_register_component_source_deduplicates(monkeypatch):
monkeypatch.setattr(ch, "CORE", Mock(data={}))
idx1 = register_component_source("wifi")
idx2 = register_component_source("api")
idx3 = register_component_source("wifi")
assert idx1 == 1
assert idx2 == 2
assert idx3 == 1 # deduplicated
def test_register_component_source_overflow_warns(monkeypatch, caplog):
# Pre-fill pool to max
pool = ComponentSourcePool(
sources={f"comp_{i}": i + 1 for i in range(0xFF)},
table_registered=True,
)
monkeypatch.setattr(ch, "CORE", Mock(data={ch._COMPONENT_SOURCE_DOMAIN: pool}))
with caplog.at_level(logging.WARNING):
idx = register_component_source("overflow_component")
assert idx == 0
assert "Too many unique component source names" in caplog.text
assert "overflow_component" in caplog.text