NDOJ/judge/bridge/echo_test_client.py
2020-07-19 16:27:14 -05:00

81 lines
2.1 KiB
Python

import os
import socket
import struct
import time
import zlib
size_pack = struct.Struct('!I')
def open_connection():
sock = socket.create_connection((host, port))
return sock
def zlibify(data):
data = zlib.compress(data.encode('utf-8'))
return size_pack.pack(len(data)) + data
def dezlibify(data, skip_head=True):
if skip_head:
data = data[size_pack.size:]
return zlib.decompress(data).decode('utf-8')
def main():
global host, port
import argparse
parser = argparse.ArgumentParser()
parser.add_argument('-l', '--host', default='localhost')
parser.add_argument('-p', '--port', default=9999, type=int)
args = parser.parse_args()
host, port = args.host, args.port
print('Opening idle connection:', end=' ')
s1 = open_connection()
print('Success')
print('Opening hello world connection:', end=' ')
s2 = open_connection()
print('Success')
print('Sending Hello, World!', end=' ')
s2.sendall(zlibify('Hello, World!'))
print('Success')
print('Testing blank connection:', end=' ')
s3 = open_connection()
s3.close()
print('Success')
result = dezlibify(s2.recv(1024))
assert result == 'Hello, World!'
print(result)
s2.close()
print('Large random data test:', end=' ')
s4 = open_connection()
data = os.urandom(1000000).decode('iso-8859-1')
print('Generated', end=' ')
s4.sendall(zlibify(data))
print('Sent', end=' ')
result = b''
while len(result) < size_pack.size:
result += s4.recv(1024)
size = size_pack.unpack(result[:size_pack.size])[0]
result = result[size_pack.size:]
while len(result) < size:
result += s4.recv(1024)
print('Received', end=' ')
assert dezlibify(result, False) == data
print('Success')
s4.close()
print('Test malformed connection:', end=' ')
s5 = open_connection()
s5.sendall(data[:100000].encode('utf-8'))
s5.close()
print('Success')
print('Waiting for timeout to close idle connection:', end=' ')
time.sleep(6)
print('Done')
s1.close()
if __name__ == '__main__':
main()