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test_client_session.py
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test_client_session.py
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# type: ignore
import asyncio
import contextlib
import gc
import json
import sys
from http.cookies import SimpleCookie
from io import BytesIO
from typing import Any
from unittest import mock
import pytest
from multidict import CIMultiDict, MultiDict
from re_assert import Matches
from yarl import URL
import aiohttp
from aiohttp import client, hdrs, web
from aiohttp.client import ClientSession
from aiohttp.client_reqrep import ClientRequest
from aiohttp.connector import BaseConnector, TCPConnector
from aiohttp.test_utils import make_mocked_coro
@pytest.fixture
def connector(loop: Any, create_mocked_conn: Any):
async def make_conn():
return BaseConnector()
conn = loop.run_until_complete(make_conn())
proto = create_mocked_conn()
conn._conns["a"] = [(proto, 123)]
yield conn
loop.run_until_complete(conn.close())
@pytest.fixture
def create_session(loop: Any):
session = None
async def maker(*args, **kwargs):
nonlocal session
session = ClientSession(*args, **kwargs)
return session
yield maker
if session is not None:
loop.run_until_complete(session.close())
@pytest.fixture
def session(create_session: Any, loop: Any):
return loop.run_until_complete(create_session())
@pytest.fixture
def params():
return dict(
headers={"Authorization": "Basic ..."},
max_redirects=2,
encoding="latin1",
version=aiohttp.HttpVersion10,
compress="deflate",
chunked=True,
expect100=True,
read_until_eof=False,
)
async def test_close_coro(create_session: Any) -> None:
session = await create_session()
await session.close()
async def test_init_headers_simple_dict(create_session: Any) -> None:
session = await create_session(headers={"h1": "header1", "h2": "header2"})
assert sorted(session.headers.items()) == ([("h1", "header1"), ("h2", "header2")])
async def test_init_headers_list_of_tuples(create_session: Any) -> None:
session = await create_session(
headers=[("h1", "header1"), ("h2", "header2"), ("h3", "header3")]
)
assert session.headers == CIMultiDict(
[("h1", "header1"), ("h2", "header2"), ("h3", "header3")]
)
async def test_init_headers_MultiDict(create_session: Any) -> None:
session = await create_session(
headers=MultiDict([("h1", "header1"), ("h2", "header2"), ("h3", "header3")])
)
assert session.headers == CIMultiDict(
[("H1", "header1"), ("H2", "header2"), ("H3", "header3")]
)
async def test_init_headers_list_of_tuples_with_duplicates(create_session: Any) -> None:
session = await create_session(
headers=[("h1", "header11"), ("h2", "header21"), ("h1", "header12")]
)
assert session.headers == CIMultiDict(
[("H1", "header11"), ("H2", "header21"), ("H1", "header12")]
)
async def test_init_cookies_with_simple_dict(create_session: Any) -> None:
session = await create_session(cookies={"c1": "cookie1", "c2": "cookie2"})
cookies = session.cookie_jar.filter_cookies()
assert set(cookies) == {"c1", "c2"}
assert cookies["c1"].value == "cookie1"
assert cookies["c2"].value == "cookie2"
async def test_init_cookies_with_list_of_tuples(create_session: Any) -> None:
session = await create_session(cookies=[("c1", "cookie1"), ("c2", "cookie2")])
cookies = session.cookie_jar.filter_cookies()
assert set(cookies) == {"c1", "c2"}
assert cookies["c1"].value == "cookie1"
assert cookies["c2"].value == "cookie2"
async def test_merge_headers(create_session: Any) -> None:
# Check incoming simple dict
session = await create_session(headers={"h1": "header1", "h2": "header2"})
headers = session._prepare_headers({"h1": "h1"})
assert isinstance(headers, CIMultiDict)
assert headers == {"h1": "h1", "h2": "header2"}
async def test_merge_headers_with_multi_dict(create_session: Any) -> None:
session = await create_session(headers={"h1": "header1", "h2": "header2"})
headers = session._prepare_headers(MultiDict([("h1", "h1")]))
assert isinstance(headers, CIMultiDict)
assert headers == {"h1": "h1", "h2": "header2"}
async def test_merge_headers_with_list_of_tuples(create_session: Any) -> None:
session = await create_session(headers={"h1": "header1", "h2": "header2"})
headers = session._prepare_headers([("h1", "h1")])
assert isinstance(headers, CIMultiDict)
assert headers == {"h1": "h1", "h2": "header2"}
async def test_merge_headers_with_list_of_tuples_duplicated_names(
create_session: Any,
) -> None:
session = await create_session(headers={"h1": "header1", "h2": "header2"})
headers = session._prepare_headers([("h1", "v1"), ("h1", "v2")])
assert isinstance(headers, CIMultiDict)
assert list(sorted(headers.items())) == [
("h1", "v1"),
("h1", "v2"),
("h2", "header2"),
]
def test_http_GET(session: Any, params: Any) -> None:
# Python 3.8 will auto use mock.AsyncMock, it has different behavior
with mock.patch(
"aiohttp.client.ClientSession._request", new_callable=mock.MagicMock
) as patched:
session.get("http://test.example.com", params={"x": 1}, **params)
assert patched.called, "`ClientSession._request` not called"
assert list(patched.call_args) == [
(
"GET",
"http://test.example.com",
),
dict(params={"x": 1}, allow_redirects=True, **params),
]
def test_http_OPTIONS(session: Any, params: Any) -> None:
with mock.patch(
"aiohttp.client.ClientSession._request", new_callable=mock.MagicMock
) as patched:
session.options("http://opt.example.com", params={"x": 2}, **params)
assert patched.called, "`ClientSession._request` not called"
assert list(patched.call_args) == [
(
"OPTIONS",
"http://opt.example.com",
),
dict(params={"x": 2}, allow_redirects=True, **params),
]
def test_http_HEAD(session: Any, params: Any) -> None:
with mock.patch(
"aiohttp.client.ClientSession._request", new_callable=mock.MagicMock
) as patched:
session.head("http://head.example.com", params={"x": 2}, **params)
assert patched.called, "`ClientSession._request` not called"
assert list(patched.call_args) == [
(
"HEAD",
"http://head.example.com",
),
dict(params={"x": 2}, allow_redirects=False, **params),
]
def test_http_POST(session: Any, params: Any) -> None:
with mock.patch(
"aiohttp.client.ClientSession._request", new_callable=mock.MagicMock
) as patched:
session.post(
"http://post.example.com", params={"x": 2}, data="Some_data", **params
)
assert patched.called, "`ClientSession._request` not called"
assert list(patched.call_args) == [
(
"POST",
"http://post.example.com",
),
dict(params={"x": 2}, data="Some_data", **params),
]
def test_http_PUT(session: Any, params: Any) -> None:
with mock.patch(
"aiohttp.client.ClientSession._request", new_callable=mock.MagicMock
) as patched:
session.put(
"http://put.example.com", params={"x": 2}, data="Some_data", **params
)
assert patched.called, "`ClientSession._request` not called"
assert list(patched.call_args) == [
(
"PUT",
"http://put.example.com",
),
dict(params={"x": 2}, data="Some_data", **params),
]
def test_http_PATCH(session: Any, params: Any) -> None:
with mock.patch(
"aiohttp.client.ClientSession._request", new_callable=mock.MagicMock
) as patched:
session.patch(
"http://patch.example.com", params={"x": 2}, data="Some_data", **params
)
assert patched.called, "`ClientSession._request` not called"
assert list(patched.call_args) == [
(
"PATCH",
"http://patch.example.com",
),
dict(params={"x": 2}, data="Some_data", **params),
]
def test_http_DELETE(session: Any, params: Any) -> None:
with mock.patch(
"aiohttp.client.ClientSession._request", new_callable=mock.MagicMock
) as patched:
session.delete("http://delete.example.com", params={"x": 2}, **params)
assert patched.called, "`ClientSession._request` not called"
assert list(patched.call_args) == [
(
"DELETE",
"http://delete.example.com",
),
dict(params={"x": 2}, **params),
]
async def test_close(create_session: Any, connector: Any) -> None:
session = await create_session(connector=connector)
await session.close()
assert session.connector is None
assert connector.closed
async def test_closed(session: Any) -> None:
assert not session.closed
await session.close()
assert session.closed
async def test_connector(create_session: Any, loop: Any, mocker: Any) -> None:
connector = TCPConnector()
mocker.spy(connector, "close")
session = await create_session(connector=connector)
assert session.connector is connector
await session.close()
assert connector.close.called
await connector.close()
async def test_create_connector(create_session: Any, loop: Any, mocker: Any) -> None:
session = await create_session()
connector = session.connector
mocker.spy(session.connector, "close")
await session.close()
assert connector.close.called
def test_connector_loop(loop: Any) -> None:
with contextlib.ExitStack() as stack:
another_loop = asyncio.new_event_loop()
stack.enter_context(contextlib.closing(another_loop))
async def make_connector():
return TCPConnector()
connector = another_loop.run_until_complete(make_connector())
stack.enter_context(contextlib.closing(connector))
with pytest.raises(RuntimeError) as ctx:
async def make_sess():
return ClientSession(connector=connector)
loop.run_until_complete(make_sess())
assert Matches("Session and connector have to use same event loop") == str(
ctx.value
)
def test_detach(loop: Any, session: Any) -> None:
conn = session.connector
try:
assert not conn.closed
session.detach()
assert session.connector is None
assert session.closed
assert not conn.closed
finally:
loop.run_until_complete(conn.close())
async def test_request_closed_session(session: Any) -> None:
await session.close()
with pytest.raises(RuntimeError):
await session.request("get", "/")
async def test_close_flag_for_closed_connector(session: Any) -> None:
conn = session.connector
assert not session.closed
await conn.close()
assert session.closed
async def test_double_close(connector: Any, create_session: Any) -> None:
session = await create_session(connector=connector)
await session.close()
assert session.connector is None
await session.close()
assert session.closed
assert connector.closed
async def test_del(connector: Any, loop: Any) -> None:
loop.set_debug(False)
# N.B. don't use session fixture, it stores extra reference internally
session = ClientSession(connector=connector)
logs = []
loop.set_exception_handler(lambda loop, ctx: logs.append(ctx))
with pytest.warns(ResourceWarning):
del session
gc.collect()
assert len(logs) == 1
expected = {"client_session": mock.ANY, "message": "Unclosed client session"}
assert logs[0] == expected
async def test_del_debug(connector: Any, loop: Any) -> None:
loop.set_debug(True)
# N.B. don't use session fixture, it stores extra reference internally
session = ClientSession(connector=connector)
logs = []
loop.set_exception_handler(lambda loop, ctx: logs.append(ctx))
with pytest.warns(ResourceWarning):
del session
gc.collect()
assert len(logs) == 1
expected = {
"client_session": mock.ANY,
"message": "Unclosed client session",
"source_traceback": mock.ANY,
}
assert logs[0] == expected
async def test_borrow_connector_loop(
connector: Any, create_session: Any, loop: Any
) -> None:
session = ClientSession(connector=connector)
try:
assert session._loop, loop
finally:
await session.close()
async def test_reraise_os_error(create_session: Any, create_mocked_conn: Any) -> None:
err = OSError(1, "permission error")
req = mock.Mock()
req_factory = mock.Mock(return_value=req)
req.send = mock.Mock(side_effect=err)
session = await create_session(request_class=req_factory)
async def create_connection(req, traces, timeout):
# return self.transport, self.protocol
return create_mocked_conn()
session._connector._create_connection = create_connection
session._connector._release = mock.Mock()
with pytest.raises(aiohttp.ClientOSError) as ctx:
await session.request("get", "http://example.com")
e = ctx.value
assert e.errno == err.errno
assert e.strerror == err.strerror
async def test_close_conn_on_error(
create_session: Any, create_mocked_conn: Any
) -> None:
class UnexpectedException(BaseException):
pass
err = UnexpectedException("permission error")
req = mock.Mock()
req_factory = mock.Mock(return_value=req)
req.send = mock.Mock(side_effect=err)
session = await create_session(request_class=req_factory)
connections = []
original_connect = session._connector.connect
async def connect(req, traces, timeout):
conn = await original_connect(req, traces, timeout)
connections.append(conn)
return conn
async def create_connection(req, traces, timeout):
# return self.transport, self.protocol
conn = create_mocked_conn()
return conn
session._connector.connect = connect
session._connector._create_connection = create_connection
session._connector._release = mock.Mock()
with pytest.raises(UnexpectedException):
async with session.request("get", "http://example.com") as resp:
await resp.text()
# normally called during garbage collection. triggers an exception
# if the connection wasn't already closed
for c in connections:
c.__del__()
async def test_cookie_jar_usage(loop: Any, aiohttp_client: Any) -> None:
req_url = None
jar = mock.Mock()
jar.filter_cookies.return_value = None
async def handler(request):
nonlocal req_url
req_url = "http://%s/" % request.host
resp = web.Response()
resp.set_cookie("response", "resp_value")
return resp
app = web.Application()
app.router.add_route("GET", "/", handler)
session = await aiohttp_client(
app, cookies={"request": "req_value"}, cookie_jar=jar
)
# Updating the cookie jar with initial user defined cookies
jar.update_cookies.assert_called_with({"request": "req_value"})
jar.update_cookies.reset_mock()
resp = await session.get("/")
await resp.release()
# Filtering the cookie jar before sending the request,
# getting the request URL as only parameter
jar.filter_cookies.assert_called_with(URL(req_url))
# Updating the cookie jar with the response cookies
assert jar.update_cookies.called
resp_cookies = jar.update_cookies.call_args[0][0]
assert isinstance(resp_cookies, SimpleCookie)
assert "response" in resp_cookies
assert resp_cookies["response"].value == "resp_value"
async def test_session_default_version(loop: Any) -> None:
session = aiohttp.ClientSession()
assert session.version == aiohttp.HttpVersion11
await session.close()
def test_proxy_str(session: Any, params: Any) -> None:
with mock.patch(
"aiohttp.client.ClientSession._request", new_callable=mock.MagicMock
) as patched:
session.get("http://test.example.com", proxy="http://proxy.com", **params)
assert patched.called, "`ClientSession._request` not called"
assert list(patched.call_args) == [
(
"GET",
"http://test.example.com",
),
dict(allow_redirects=True, proxy="http://proxy.com", **params),
]
async def test_request_tracing(loop: Any, aiohttp_client: Any) -> None:
async def handler(request):
return web.json_response({"ok": True})
app = web.Application()
app.router.add_post("/", handler)
trace_config_ctx = mock.Mock()
trace_request_ctx = {}
body = "This is request body"
gathered_req_body = BytesIO()
gathered_res_body = BytesIO()
gathered_req_headers = CIMultiDict()
on_request_start = mock.Mock(side_effect=make_mocked_coro(mock.Mock()))
on_request_redirect = mock.Mock(side_effect=make_mocked_coro(mock.Mock()))
on_request_end = mock.Mock(side_effect=make_mocked_coro(mock.Mock()))
async def on_request_chunk_sent(session, context, params):
gathered_req_body.write(params.chunk)
async def on_response_chunk_received(session, context, params):
gathered_res_body.write(params.chunk)
async def on_request_headers_sent(session, context, params):
gathered_req_headers.extend(**params.headers)
trace_config = aiohttp.TraceConfig(
trace_config_ctx_factory=mock.Mock(return_value=trace_config_ctx)
)
trace_config.on_request_start.append(on_request_start)
trace_config.on_request_end.append(on_request_end)
trace_config.on_request_chunk_sent.append(on_request_chunk_sent)
trace_config.on_response_chunk_received.append(on_response_chunk_received)
trace_config.on_request_redirect.append(on_request_redirect)
trace_config.on_request_headers_sent.append(on_request_headers_sent)
headers = CIMultiDict({"Custom-Header": "Custom value"})
session = await aiohttp_client(app, trace_configs=[trace_config], headers=headers)
async with session.post(
"/", data=body, trace_request_ctx=trace_request_ctx
) as resp:
await resp.json()
on_request_start.assert_called_once_with(
session.session,
trace_config_ctx,
aiohttp.TraceRequestStartParams(
hdrs.METH_POST, session.make_url("/"), headers
),
)
on_request_end.assert_called_once_with(
session.session,
trace_config_ctx,
aiohttp.TraceRequestEndParams(
hdrs.METH_POST, session.make_url("/"), headers, resp
),
)
assert not on_request_redirect.called
assert gathered_req_body.getvalue() == body.encode("utf8")
assert gathered_res_body.getvalue() == json.dumps({"ok": True}).encode("utf8")
assert gathered_req_headers["Custom-Header"] == "Custom value"
async def test_request_tracing_exception() -> None:
on_request_end = mock.Mock(side_effect=make_mocked_coro(mock.Mock()))
on_request_exception = mock.Mock(side_effect=make_mocked_coro(mock.Mock()))
trace_config = aiohttp.TraceConfig()
trace_config.on_request_end.append(on_request_end)
trace_config.on_request_exception.append(on_request_exception)
with mock.patch("aiohttp.client.TCPConnector.connect") as connect_patched:
error = Exception()
if sys.version_info >= (3, 8, 1):
connect_patched.side_effect = error
else:
loop = asyncio.get_event_loop()
f = loop.create_future()
f.set_exception(error)
connect_patched.return_value = f
session = aiohttp.ClientSession(trace_configs=[trace_config])
try:
await session.get("http://example.com")
except Exception:
pass
on_request_exception.assert_called_once_with(
session,
mock.ANY,
aiohttp.TraceRequestExceptionParams(
hdrs.METH_GET, URL("http://example.com"), CIMultiDict(), error
),
)
assert not on_request_end.called
await session.close()
async def test_request_tracing_interpose_headers(
loop: Any, aiohttp_client: Any
) -> None:
async def handler(request):
return web.Response()
app = web.Application()
app.router.add_get("/", handler)
class MyClientRequest(ClientRequest):
headers = None
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
MyClientRequest.headers = self.headers
async def new_headers(session, trace_config_ctx, data):
data.headers["foo"] = "bar"
trace_config = aiohttp.TraceConfig()
trace_config.on_request_start.append(new_headers)
session = await aiohttp_client(
app, request_class=MyClientRequest, trace_configs=[trace_config]
)
await session.get("/")
assert MyClientRequest.headers["foo"] == "bar"
def test_client_session_inheritance() -> None:
with pytest.raises(TypeError):
class A(ClientSession):
pass
async def test_client_session_custom_attr() -> None:
session = ClientSession()
with pytest.raises(AttributeError):
session.custom = None
await session.close()
async def test_client_session_timeout_default_args(loop: Any) -> None:
session1 = ClientSession()
assert session1.timeout == client.DEFAULT_TIMEOUT
await session1.close()
async def test_client_session_timeout_argument() -> None:
session = ClientSession(timeout=500)
assert session.timeout == 500
await session.close()
async def test_client_session_timeout_zero() -> None:
timeout = client.ClientTimeout(total=10, connect=0, sock_connect=0, sock_read=0)
try:
async with ClientSession(timeout=timeout) as session:
await session.get("http://example.com")
except asyncio.TimeoutError:
pytest.fail("0 should disable timeout.")
async def test_requote_redirect_url_default() -> None:
session = ClientSession()
assert session.requote_redirect_url
await session.close()
async def test_requote_redirect_url_default_disable() -> None:
session = ClientSession(requote_redirect_url=False)
assert not session.requote_redirect_url
await session.close()
@pytest.mark.parametrize(
("base_url", "url", "expected_url"),
[
pytest.param(
None,
"http://example.com/test",
URL("http://example.com/test"),
id="base_url=None url='http://example.com/test'",
),
pytest.param(
None,
URL("http://example.com/test"),
URL("http://example.com/test"),
id="base_url=None url=URL('http://example.com/test')",
),
pytest.param(
"http://example.com",
"/test",
URL("http://example.com/test"),
id="base_url='http://example.com' url='/test'",
),
pytest.param(
URL("http://example.com"),
"/test",
URL("http://example.com/test"),
id="base_url=URL('http://example.com') url='/test'",
),
],
)
async def test_build_url_returns_expected_url(
create_session, base_url, url, expected_url
) -> None:
session = await create_session(base_url)
assert session._build_url(url) == expected_url