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import re
from unittest import mock
import pytest
from multidict import CIMultiDict
from aiohttp.signals import Signal
from aiohttp.test_utils import make_mocked_coro, make_mocked_request
from aiohttp.web import Application, Response
@pytest.fixture
def app():
return Application()
def make_request(app, method, path, headers=CIMultiDict()):
return make_mocked_request(method, path, headers, app=app)
async def test_add_signal_handler_not_a_callable(app) -> None:
callback = True
app.on_response_prepare.append(callback)
app.on_response_prepare.freeze()
with pytest.raises(TypeError):
await app.on_response_prepare(None, None)
async def test_function_signal_dispatch(app) -> None:
signal = Signal(app)
kwargs = {'foo': 1, 'bar': 2}
callback_mock = mock.Mock()
async def callback(**kwargs):
callback_mock(**kwargs)
signal.append(callback)
signal.freeze()
await signal.send(**kwargs)
callback_mock.assert_called_once_with(**kwargs)
async def test_function_signal_dispatch2(app) -> None:
signal = Signal(app)
args = {'a', 'b'}
kwargs = {'foo': 1, 'bar': 2}
callback_mock = mock.Mock()
async def callback(*args, **kwargs):
callback_mock(*args, **kwargs)
signal.append(callback)
signal.freeze()
await signal.send(*args, **kwargs)
callback_mock.assert_called_once_with(*args, **kwargs)
async def test_response_prepare(app) -> None:
callback = mock.Mock()
async def cb(*args, **kwargs):
callback(*args, **kwargs)
app.on_response_prepare.append(cb)
app.on_response_prepare.freeze()
request = make_request(app, 'GET', '/')
response = Response(body=b'')
await response.prepare(request)
callback.assert_called_once_with(request, response)
async def test_non_coroutine(app) -> None:
signal = Signal(app)
kwargs = {'foo': 1, 'bar': 2}
callback = mock.Mock()
signal.append(callback)
signal.freeze()
with pytest.raises(TypeError):
await signal.send(**kwargs)
def test_setitem(app) -> None:
signal = Signal(app)
m1 = mock.Mock()
signal.append(m1)
assert signal[0] is m1
m2 = mock.Mock()
signal[0] = m2
assert signal[0] is m2
def test_delitem(app) -> None:
signal = Signal(app)
m1 = mock.Mock()
signal.append(m1)
assert len(signal) == 1
del signal[0]
assert len(signal) == 0
def test_cannot_append_to_frozen_signal(app) -> None:
signal = Signal(app)
m1 = mock.Mock()
m2 = mock.Mock()
signal.append(m1)
signal.freeze()
with pytest.raises(RuntimeError):
signal.append(m2)
assert list(signal) == [m1]
def test_cannot_setitem_in_frozen_signal(app) -> None:
signal = Signal(app)
m1 = mock.Mock()
m2 = mock.Mock()
signal.append(m1)
signal.freeze()
with pytest.raises(RuntimeError):
signal[0] = m2
assert list(signal) == [m1]
def test_cannot_delitem_in_frozen_signal(app) -> None:
signal = Signal(app)
m1 = mock.Mock()
signal.append(m1)
signal.freeze()
with pytest.raises(RuntimeError):
del signal[0]
assert list(signal) == [m1]
async def test_cannot_send_non_frozen_signal(app) -> None:
signal = Signal(app)
callback = make_mocked_coro()
signal.append(callback)
with pytest.raises(RuntimeError):
await signal.send()
assert not callback.called
async def test_repr(app) -> None:
signal = Signal(app)
callback = make_mocked_coro()
signal.append(callback)
assert re.match(r"<Signal owner=<Application .+>, frozen=False, "
r"\[<Mock id='\d+'>\]>",
repr(signal))
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