212 lines
7.4 KiB
Python
212 lines
7.4 KiB
Python
"""Test discovery helpers."""
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from unittest.mock import patch
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import pytest
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from homeassistant import loader, setup
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from homeassistant.core import callback
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from homeassistant.exceptions import HomeAssistantError
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from homeassistant.helpers import discovery
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from tests.common import (
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get_test_home_assistant, MockModule, MockPlatform, mock_coro)
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class TestHelpersDiscovery:
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"""Tests for discovery helper methods."""
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def setup_method(self, method):
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"""Setup things to be run when tests are started."""
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self.hass = get_test_home_assistant()
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def teardown_method(self, method):
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"""Stop everything that was started."""
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self.hass.stop()
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@patch('homeassistant.setup.async_setup_component',
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return_value=mock_coro())
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def test_listen(self, mock_setup_component):
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"""Test discovery listen/discover combo."""
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helpers = self.hass.helpers
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calls_single = []
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calls_multi = []
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@callback
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def callback_single(service, info):
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"""Service discovered callback."""
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calls_single.append((service, info))
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@callback
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def callback_multi(service, info):
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"""Service discovered callback."""
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calls_multi.append((service, info))
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helpers.discovery.listen('test service', callback_single)
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helpers.discovery.listen(['test service', 'another service'],
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callback_multi)
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helpers.discovery.discover('test service', 'discovery info',
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'test_component')
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self.hass.block_till_done()
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assert mock_setup_component.called
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assert mock_setup_component.call_args[0] == \
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(self.hass, 'test_component', None)
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assert len(calls_single) == 1
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assert calls_single[0] == ('test service', 'discovery info')
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helpers.discovery.discover('another service', 'discovery info',
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'test_component')
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self.hass.block_till_done()
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assert len(calls_single) == 1
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assert len(calls_multi) == 2
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assert ['test service', 'another service'] == [info[0] for info
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in calls_multi]
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@patch('homeassistant.setup.async_setup_component',
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return_value=mock_coro(True))
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def test_platform(self, mock_setup_component):
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"""Test discover platform method."""
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calls = []
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@callback
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def platform_callback(platform, info):
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"""Platform callback method."""
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calls.append((platform, info))
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discovery.listen_platform(self.hass, 'test_component',
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platform_callback)
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discovery.load_platform(self.hass, 'test_component', 'test_platform',
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'discovery info')
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self.hass.block_till_done()
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assert mock_setup_component.called
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assert mock_setup_component.call_args[0] == \
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(self.hass, 'test_component', None)
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self.hass.block_till_done()
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discovery.load_platform(self.hass, 'test_component_2', 'test_platform',
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'discovery info')
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self.hass.block_till_done()
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assert len(calls) == 1
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assert calls[0] == ('test_platform', 'discovery info')
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self.hass.bus.fire(discovery.EVENT_PLATFORM_DISCOVERED, {
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discovery.ATTR_SERVICE:
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discovery.EVENT_LOAD_PLATFORM.format('test_component')
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})
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self.hass.block_till_done()
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assert len(calls) == 1
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def test_circular_import(self):
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"""Test we don't break doing circular import.
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This test will have test_component discover the switch.test_circular
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component while setting up.
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The supplied config will load test_component and will load
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switch.test_circular.
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That means that after startup, we will have test_component and switch
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setup. The test_circular platform has been loaded twice.
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"""
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component_calls = []
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platform_calls = []
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def component_setup(hass, config):
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"""Setup mock component."""
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discovery.load_platform(hass, 'switch', 'test_circular', 'disc',
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config)
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component_calls.append(1)
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return True
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def setup_platform(hass, config, add_devices_callback,
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discovery_info=None):
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"""Setup mock platform."""
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platform_calls.append('disc' if discovery_info else 'component')
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loader.set_component(
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self.hass, 'test_component',
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MockModule('test_component', setup=component_setup))
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loader.set_component(
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self.hass, 'switch.test_circular',
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MockPlatform(setup_platform,
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dependencies=['test_component']))
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setup.setup_component(self.hass, 'test_component', {
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'test_component': None,
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'switch': [{
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'platform': 'test_circular',
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}],
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})
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self.hass.block_till_done()
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# test_component will only be setup once
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assert len(component_calls) == 1
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# The platform will be setup once via the config in `setup_component`
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# and once via the discovery inside test_component.
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assert len(platform_calls) == 2
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assert 'test_component' in self.hass.config.components
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assert 'switch' in self.hass.config.components
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@patch('homeassistant.bootstrap.async_register_signal_handling')
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def test_1st_discovers_2nd_component(self, mock_signal):
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"""Test that we don't break if one component discovers the other.
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If the first component fires a discovery event to setup the
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second component while the second component is about to be setup,
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it should not setup the second component twice.
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"""
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component_calls = []
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def component1_setup(hass, config):
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"""Setup mock component."""
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print('component1 setup')
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discovery.discover(hass, 'test_component2',
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component='test_component2')
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return True
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def component2_setup(hass, config):
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"""Setup mock component."""
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component_calls.append(1)
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return True
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loader.set_component(
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self.hass, 'test_component1',
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MockModule('test_component1', setup=component1_setup))
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loader.set_component(
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self.hass, 'test_component2',
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MockModule('test_component2', setup=component2_setup))
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@callback
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def do_setup():
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"""Setup 2 components."""
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self.hass.async_add_job(setup.async_setup_component(
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self.hass, 'test_component1', {}))
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self.hass.async_add_job(setup.async_setup_component(
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self.hass, 'test_component2', {}))
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self.hass.add_job(do_setup)
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self.hass.block_till_done()
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# test_component will only be setup once
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assert len(component_calls) == 1
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async def test_load_platform_forbids_config():
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"""Test you cannot setup config component with load_platform."""
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with pytest.raises(HomeAssistantError):
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await discovery.async_load_platform(None, 'config', 'zwave')
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async def test_discover_forbids_config():
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"""Test you cannot setup config component with load_platform."""
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with pytest.raises(HomeAssistantError):
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await discovery.async_discover(None, None, None, 'config')
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