core/tests/helpers/test_dispatcher.py

156 lines
4.1 KiB
Python

"""Test dispatcher helpers."""
import asyncio
from homeassistant.core import callback
from homeassistant.helpers.dispatcher import (
async_dispatcher_connect,
dispatcher_send,
dispatcher_connect,
)
from tests.common import get_test_home_assistant
class TestHelpersDispatcher:
"""Tests for discovery helper methods."""
def setup_method(self, method):
"""Set up things to be run when tests are started."""
self.hass = get_test_home_assistant()
def teardown_method(self, method):
"""Stop everything that was started."""
self.hass.stop()
def test_simple_function(self):
"""Test simple function (executor)."""
calls = []
def test_funct(data):
"""Test function."""
calls.append(data)
dispatcher_connect(self.hass, "test", test_funct)
dispatcher_send(self.hass, "test", 3)
self.hass.block_till_done()
assert calls == [3]
dispatcher_send(self.hass, "test", "bla")
self.hass.block_till_done()
assert calls == [3, "bla"]
def test_simple_function_unsub(self):
"""Test simple function (executor) and unsub."""
calls1 = []
calls2 = []
def test_funct1(data):
"""Test function."""
calls1.append(data)
def test_funct2(data):
"""Test function."""
calls2.append(data)
dispatcher_connect(self.hass, "test1", test_funct1)
unsub = dispatcher_connect(self.hass, "test2", test_funct2)
dispatcher_send(self.hass, "test1", 3)
dispatcher_send(self.hass, "test2", 4)
self.hass.block_till_done()
assert calls1 == [3]
assert calls2 == [4]
unsub()
dispatcher_send(self.hass, "test1", 5)
dispatcher_send(self.hass, "test2", 6)
self.hass.block_till_done()
assert calls1 == [3, 5]
assert calls2 == [4]
# check don't kill the flow
unsub()
dispatcher_send(self.hass, "test1", 7)
dispatcher_send(self.hass, "test2", 8)
self.hass.block_till_done()
assert calls1 == [3, 5, 7]
assert calls2 == [4]
def test_simple_callback(self):
"""Test simple callback (async)."""
calls = []
@callback
def test_funct(data):
"""Test function."""
calls.append(data)
dispatcher_connect(self.hass, "test", test_funct)
dispatcher_send(self.hass, "test", 3)
self.hass.block_till_done()
assert calls == [3]
dispatcher_send(self.hass, "test", "bla")
self.hass.block_till_done()
assert calls == [3, "bla"]
def test_simple_coro(self):
"""Test simple coro (async)."""
calls = []
@asyncio.coroutine
def test_funct(data):
"""Test function."""
calls.append(data)
dispatcher_connect(self.hass, "test", test_funct)
dispatcher_send(self.hass, "test", 3)
self.hass.block_till_done()
assert calls == [3]
dispatcher_send(self.hass, "test", "bla")
self.hass.block_till_done()
assert calls == [3, "bla"]
def test_simple_function_multiargs(self):
"""Test simple function (executor)."""
calls = []
def test_funct(data1, data2, data3):
"""Test function."""
calls.append(data1)
calls.append(data2)
calls.append(data3)
dispatcher_connect(self.hass, "test", test_funct)
dispatcher_send(self.hass, "test", 3, 2, "bla")
self.hass.block_till_done()
assert calls == [3, 2, "bla"]
async def test_callback_exception_gets_logged(hass, caplog):
"""Test exception raised by signal handler."""
@callback
def bad_handler(*args):
"""Record calls."""
raise Exception("This is a bad message callback")
async_dispatcher_connect(hass, "test", bad_handler)
dispatcher_send(hass, "test", "bad")
await hass.async_block_till_done()
await hass.async_block_till_done()
assert "Exception in bad_handler when dispatching 'test': ('bad',)" in caplog.text