sanic/tests/test_http.py

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2021-07-19 14:52:33 +01:00
import asyncio
import json as stdjson
from collections import namedtuple
from textwrap import dedent
from typing import AnyStr
import pytest
from sanic_testing.reusable import ReusableClient
from sanic import json, text
from sanic.app import Sanic
PORT = 1234
class RawClient:
CRLF = b"\r\n"
def __init__(self, host: str, port: int):
self.reader = None
self.writer = None
self.host = host
self.port = port
async def connect(self):
self.reader, self.writer = await asyncio.open_connection(
self.host, self.port
)
async def close(self):
self.writer.close()
await self.writer.wait_closed()
async def send(self, message: AnyStr):
if isinstance(message, str):
msg = self._clean(message).encode("utf-8")
else:
msg = message
await self._send(msg)
async def _send(self, message: bytes):
if not self.writer:
raise Exception("No open write stream")
self.writer.write(message)
async def recv(self, nbytes: int = -1) -> bytes:
if not self.reader:
raise Exception("No open read stream")
return await self.reader.read(nbytes)
def _clean(self, message: str) -> str:
return (
dedent(message)
.lstrip("\n")
.replace("\n", self.CRLF.decode("utf-8"))
)
@pytest.fixture
def test_app(app: Sanic):
app.config.KEEP_ALIVE_TIMEOUT = 1
@app.get("/")
async def base_handler(request):
return text("111122223333444455556666777788889999")
@app.post("/upload", stream=True)
async def upload_handler(request):
data = [part.decode("utf-8") async for part in request.stream]
return json(data)
return app
@pytest.fixture
def runner(test_app):
client = ReusableClient(test_app, port=PORT)
client.run()
yield client
client.stop()
@pytest.fixture
def client(runner):
client = namedtuple("Client", ("raw", "send", "recv"))
raw = RawClient(runner.host, runner.port)
runner._run(raw.connect())
def send(msg):
nonlocal runner
nonlocal raw
runner._run(raw.send(msg))
def recv(**kwargs):
nonlocal runner
nonlocal raw
method = raw.recv_until if "until" in kwargs else raw.recv
return runner._run(method(**kwargs))
yield client(raw, send, recv)
runner._run(raw.close())
def test_full_message(client):
client.send(
"""
GET / HTTP/1.1
host: localhost:7777
"""
)
response = client.recv()
assert len(response) == 140
assert b"200 OK" in response
def test_transfer_chunked(client):
client.send(
"""
POST /upload HTTP/1.1
transfer-encoding: chunked
"""
)
client.send(b"3\r\nfoo\r\n")
client.send(b"3\r\nbar\r\n")
client.send(b"0\r\n\r\n")
response = client.recv()
_, body = response.rsplit(b"\r\n\r\n", 1)
data = stdjson.loads(body)
assert data == ["foo", "bar"]