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# Test asyncio stream readexactly() method using TCP server/client
try:
import asyncio
except ImportError:
print("SKIP")
raise SystemExit
PORT = 8000
async def handle_connection(reader, writer):
writer.write(b"a")
await writer.drain()
# Split the first 2 bytes up so the client must wait for the second one
await asyncio.sleep(1)
writer.write(b"b")
await writer.drain()
writer.write(b"c")
await writer.drain()
writer.write(b"d")
await writer.drain()
print("close")
writer.close()
await writer.wait_closed()
print("done")
ev.set()
async def tcp_server():
global ev
ev = asyncio.Event()
server = await asyncio.start_server(handle_connection, "0.0.0.0", PORT)
print("server running")
multitest.next()
async with server:
await asyncio.wait_for(ev.wait(), 10)
async def tcp_client():
reader, writer = await asyncio.open_connection(IP, PORT)
print(await reader.readexactly(2))
print(await reader.readexactly(0))
print(await reader.readexactly(1))
try:
print(await reader.readexactly(2))
except EOFError as er:
print("EOFError")
print(await reader.readexactly(0))
def instance0():
multitest.globals(IP=multitest.get_network_ip())
asyncio.run(tcp_server())
def instance1():
multitest.next()
asyncio.run(tcp_client())
|
