sanic/tests/test_asgi.py
2021-02-07 11:38:37 +02:00

343 lines
9.0 KiB
Python

import asyncio
import sys
from collections import deque, namedtuple
import pytest
import uvicorn
from sanic import Sanic
from sanic.asgi import MockTransport
from sanic.exceptions import InvalidUsage
from sanic.request import Request
from sanic.response import json, text
from sanic.websocket import WebSocketConnection
@pytest.fixture
def message_stack():
return deque()
@pytest.fixture
def receive(message_stack):
async def _receive():
return message_stack.popleft()
return _receive
@pytest.fixture
def send(message_stack):
async def _send(message):
message_stack.append(message)
return _send
@pytest.fixture
def transport(message_stack, receive, send):
return MockTransport({}, receive, send)
@pytest.fixture
def protocol(transport):
return transport.get_protocol()
def test_listeners_triggered(app):
before_server_start = False
after_server_start = False
before_server_stop = False
after_server_stop = False
@app.listener("before_server_start")
def do_before_server_start(*args, **kwargs):
nonlocal before_server_start
before_server_start = True
@app.listener("after_server_start")
def do_after_server_start(*args, **kwargs):
nonlocal after_server_start
after_server_start = True
@app.listener("before_server_stop")
def do_before_server_stop(*args, **kwargs):
nonlocal before_server_stop
before_server_stop = True
@app.listener("after_server_stop")
def do_after_server_stop(*args, **kwargs):
nonlocal after_server_stop
after_server_stop = True
class CustomServer(uvicorn.Server):
def install_signal_handlers(self):
pass
config = uvicorn.Config(app=app, loop="asyncio", limit_max_requests=0)
server = CustomServer(config=config)
with pytest.warns(UserWarning):
server.run()
all_tasks = (
asyncio.Task.all_tasks()
if sys.version_info < (3, 7)
else asyncio.all_tasks(asyncio.get_event_loop())
)
for task in all_tasks:
task.cancel()
assert before_server_start
assert after_server_start
assert before_server_stop
assert after_server_stop
def test_listeners_triggered_async(app):
before_server_start = False
after_server_start = False
before_server_stop = False
after_server_stop = False
@app.listener("before_server_start")
async def do_before_server_start(*args, **kwargs):
nonlocal before_server_start
before_server_start = True
@app.listener("after_server_start")
async def do_after_server_start(*args, **kwargs):
nonlocal after_server_start
after_server_start = True
@app.listener("before_server_stop")
async def do_before_server_stop(*args, **kwargs):
nonlocal before_server_stop
before_server_stop = True
@app.listener("after_server_stop")
async def do_after_server_stop(*args, **kwargs):
nonlocal after_server_stop
after_server_stop = True
class CustomServer(uvicorn.Server):
def install_signal_handlers(self):
pass
config = uvicorn.Config(app=app, loop="asyncio", limit_max_requests=0)
server = CustomServer(config=config)
with pytest.warns(UserWarning):
server.run()
all_tasks = (
asyncio.Task.all_tasks()
if sys.version_info < (3, 7)
else asyncio.all_tasks(asyncio.get_event_loop())
)
for task in all_tasks:
task.cancel()
assert before_server_start
assert after_server_start
assert before_server_stop
assert after_server_stop
@pytest.mark.asyncio
async def test_mockprotocol_events(protocol):
assert protocol._not_paused.is_set()
protocol.pause_writing()
assert not protocol._not_paused.is_set()
protocol.resume_writing()
assert protocol._not_paused.is_set()
@pytest.mark.asyncio
async def test_protocol_push_data(protocol, message_stack):
text = b"hello"
await protocol.push_data(text)
await protocol.complete()
assert len(message_stack) == 2
message = message_stack.popleft()
assert message["type"] == "http.response.body"
assert message["more_body"]
assert message["body"] == text
message = message_stack.popleft()
assert message["type"] == "http.response.body"
assert not message["more_body"]
assert message["body"] == b""
@pytest.mark.asyncio
async def test_websocket_send(send, receive, message_stack):
text_string = "hello"
text_bytes = b"hello"
ws = WebSocketConnection(send, receive)
await ws.send(text_string)
await ws.send(text_bytes)
assert len(message_stack) == 2
message = message_stack.popleft()
assert message["type"] == "websocket.send"
assert message["text"] == text_string
assert "bytes" not in message
message = message_stack.popleft()
assert message["type"] == "websocket.send"
assert message["bytes"] == text_bytes
assert "text" not in message
@pytest.mark.asyncio
async def test_websocket_receive(send, receive, message_stack):
msg = {"text": "hello", "type": "websocket.receive"}
message_stack.append(msg)
ws = WebSocketConnection(send, receive)
text = await ws.receive()
assert text == msg["text"]
@pytest.mark.asyncio
async def test_websocket_accept_with_no_subprotocols(
send, receive, message_stack
):
ws = WebSocketConnection(send, receive)
await ws.accept()
assert len(message_stack) == 1
message = message_stack.popleft()
assert message["type"] == "websocket.accept"
assert message["subprotocol"] == ""
assert "bytes" not in message
@pytest.mark.asyncio
async def test_websocket_accept_with_subprotocol(send, receive, message_stack):
subprotocols = ["graphql-ws"]
ws = WebSocketConnection(send, receive, subprotocols)
await ws.accept()
assert len(message_stack) == 1
message = message_stack.popleft()
assert message["type"] == "websocket.accept"
assert message["subprotocol"] == "graphql-ws"
assert "bytes" not in message
@pytest.mark.asyncio
async def test_websocket_accept_with_multiple_subprotocols(
send, receive, message_stack
):
subprotocols = ["graphql-ws", "hello", "world"]
ws = WebSocketConnection(send, receive, subprotocols)
await ws.accept()
assert len(message_stack) == 1
message = message_stack.popleft()
assert message["type"] == "websocket.accept"
assert message["subprotocol"] == "graphql-ws,hello,world"
assert "bytes" not in message
def test_improper_websocket_connection(transport, send, receive):
with pytest.raises(InvalidUsage):
transport.get_websocket_connection()
transport.create_websocket_connection(send, receive)
connection = transport.get_websocket_connection()
assert isinstance(connection, WebSocketConnection)
@pytest.mark.asyncio
async def test_request_class_regular(app):
@app.get("/regular")
def regular_request(request):
return text(request.__class__.__name__)
_, response = await app.asgi_client.get("/regular")
assert response.body == b"Request"
@pytest.mark.asyncio
async def test_request_class_custom():
class MyCustomRequest(Request):
pass
app = Sanic(name=__name__, request_class=MyCustomRequest)
@app.get("/custom")
def custom_request(request):
return text(request.__class__.__name__)
_, response = await app.asgi_client.get("/custom")
assert response.body == b"MyCustomRequest"
@pytest.mark.asyncio
async def test_cookie_customization(app):
@app.get("/cookie")
def get_cookie(request):
response = text("There's a cookie up in this response")
response.cookies["test"] = "Cookie1"
response.cookies["test"]["httponly"] = True
response.cookies["c2"] = "Cookie2"
response.cookies["c2"]["httponly"] = False
return response
_, response = await app.asgi_client.get("/cookie")
CookieDef = namedtuple("CookieDef", ("value", "httponly"))
cookie_map = {
"test": CookieDef("Cookie1", True),
"c2": CookieDef("Cookie2", False),
}
for name, definition in cookie_map.items():
cookie = response.cookies.get(name)
assert cookie
assert cookie.value == definition.value
assert cookie.get("domain") == "mockserver.local"
assert cookie.get("path") == "/"
assert cookie.get("httponly", False) == definition.httponly
@pytest.mark.asyncio
async def test_content_type(app):
@app.get("/json")
def send_json(request):
return json({"foo": "bar"})
@app.get("/text")
def send_text(request):
return text("foobar")
@app.get("/custom")
def send_custom(request):
return text("foobar", content_type="somethingelse")
_, response = await app.asgi_client.get("/json")
assert response.headers.get("content-type") == "application/json"
_, response = await app.asgi_client.get("/text")
assert response.headers.get("content-type") == "text/plain; charset=utf-8"
_, response = await app.asgi_client.get("/custom")
assert response.headers.get("content-type") == "somethingelse"