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50feeef580
These tests exercise memcache instance using a real client. The test_memcache.py suite can be run against any memcache instance which conforms to the ASCII protocol.
99 lines
3.6 KiB
Python
Executable File
99 lines
3.6 KiB
Python
Executable File
#!/usr/bin/env python3
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import socket
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import struct
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import random
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import time
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import unittest
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server_addr = ('127.0.0.1', 11211)
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def udp_call(server_addr, msg):
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sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
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this_req_id = random.randint(-32768, 32767)
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datagram = struct.pack(">hhhh", this_req_id, 0, 1, 0) + msg.encode()
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sock.sendto(datagram, server_addr)
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messages = {}
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n_determined = None
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while True:
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data, addr = sock.recvfrom(1500)
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req_id, seq, n, res = struct.unpack_from(">hhhh", data)
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content = data[8:]
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if n_determined and n_determined != n:
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raise Exception('Inconsitent number of total messages, %d and %d' % (n_determined, n))
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n_determined = n
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if req_id != this_req_id:
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raise Exception('Invalid request id: ' + req_id + ', expected ' + this_req_id)
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if seq in messages:
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raise Exception('Duplicate message for seq=' + seq)
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messages[seq] = content
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if len(messages) == n:
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break
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msg = b''
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for k, v in sorted(messages.items(), key=lambda e: e[0]):
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msg += v
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sock.close()
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return msg
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def call(cmd):
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return udp_call(server_addr, cmd)
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class TestUDPProtocol(unittest.TestCase):
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def call_set(self, key, value, call_fn=call, flags=0, expiry=0):
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self.assertEqual(call_fn('set %s %d %d %d\r\n%s\r\n' % (key, flags, expiry, len(value), value)), b'STORED\r\n')
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def call_delete(self, key, call_fn=call):
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self.assertEqual(call_fn('delete %s\r\n' % key), b'DELETED\r\n')
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def test_basic_commands(self):
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self.assertEqual(call('get key\r\n'), b'END\r\n')
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self.assertEqual(call('set key 0 0 5\r\nhello\r\n'), b'STORED\r\n')
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self.assertEqual(call('get key\r\n'), b'VALUE key 0 5\r\nhello\r\nEND\r\n')
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self.assertEqual(call('delete key\r\n'), b'DELETED\r\n')
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self.assertEqual(call('delete key\r\n'), b'NOT_FOUND\r\n')
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self.assertEqual(call('get key\r\n'), b'END\r\n')
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def test_expiry(self):
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self.assertEqual(call('set key 0 1 5\r\nhello\r\n'), b'STORED\r\n')
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self.assertEqual(call('get key\r\n'), b'VALUE key 0 5\r\nhello\r\nEND\r\n')
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time.sleep(1)
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self.assertEqual(call('get key\r\n'), b'END\r\n')
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def test_expiry_at_epoch_time(self):
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expiry = int(time.time()) + 1
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self.assertEqual(call('set key 0 %d 5\r\nhello\r\n' % expiry), b'STORED\r\n')
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self.assertEqual(call('get key\r\n'), b'VALUE key 0 5\r\nhello\r\nEND\r\n')
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time.sleep(2)
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self.assertEqual(call('get key\r\n'), b'END\r\n')
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def test_mutliple_keys_in_get(self):
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self.assertEqual(call('set key1 0 0 2\r\nv1\r\n'), b'STORED\r\n')
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self.assertEqual(call('set key 0 0 2\r\nv2\r\n'), b'STORED\r\n')
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self.assertEqual(call('get key1 key\r\n'), b'VALUE key1 0 2\r\nv1\r\nVALUE key 0 2\r\nv2\r\nEND\r\n')
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def test_response_spanning_many_datagrams(self):
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key1_data = '1' * 1000
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key2_data = '2' * 1000
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key3_data = '3' * 1000
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self.call_set('key1', key1_data)
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self.call_set('key2', key2_data)
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self.call_set('key3', key3_data)
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self.assertEqual(call('get key1 key2 key3\r\n').decode(),
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'VALUE key1 0 %d\r\n%s\r\n' \
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'VALUE key2 0 %d\r\n%s\r\n' \
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'VALUE key3 0 %d\r\n%s\r\n' \
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'END\r\n' % (len(key1_data), key1_data, len(key2_data), key2_data, len(key3_data), key3_data))
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self.call_delete('key1')
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self.call_delete('key2')
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self.call_delete('key3')
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if __name__ == '__main__':
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unittest.main()
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