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-rwxr-xr-xsrc/seastar/apps/memcached/tests/test_memcached.py600
1 files changed, 600 insertions, 0 deletions
diff --git a/src/seastar/apps/memcached/tests/test_memcached.py b/src/seastar/apps/memcached/tests/test_memcached.py
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--- /dev/null
+++ b/src/seastar/apps/memcached/tests/test_memcached.py
@@ -0,0 +1,600 @@
+#!/usr/bin/env python3
+#
+# This file is open source software, licensed to you under the terms
+# of the Apache License, Version 2.0 (the "License"). See the NOTICE file
+# distributed with this work for additional information regarding copyright
+# ownership. You may not use this file except in compliance with the License.
+#
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied. See the License for the
+# specific language governing permissions and limitations
+# under the License.
+#
+from contextlib import contextmanager
+import socket
+import struct
+import sys
+import random
+import argparse
+import time
+import re
+import unittest
+
+server_addr = None
+call = None
+args = None
+
+class TimeoutError(Exception):
+ pass
+
+@contextmanager
+def tcp_connection(timeout=1):
+ s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+ s.settimeout(timeout)
+ s.connect(server_addr)
+ def call(msg):
+ s.send(msg.encode())
+ return s.recv(16*1024)
+ yield call
+ s.close()
+
+def slow(f):
+ def wrapper(self):
+ if args.fast:
+ raise unittest.SkipTest('Slow')
+ return f(self)
+ return wrapper
+
+def recv_all(s):
+ m = b''
+ while True:
+ data = s.recv(1024)
+ if not data:
+ break
+ m += data
+ return m
+
+def tcp_call(msg, timeout=1):
+ s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+ s.settimeout(timeout)
+ s.connect(server_addr)
+ s.send(msg.encode())
+ s.shutdown(socket.SHUT_WR)
+ data = recv_all(s)
+ s.close()
+ return data
+
+def udp_call_for_fragments(msg, timeout=1):
+ sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+ sock.settimeout(timeout)
+ this_req_id = random.randint(-32768, 32767)
+
+ datagram = struct.pack(">hhhh", this_req_id, 0, 1, 0) + msg.encode()
+ sock.sendto(datagram, server_addr)
+
+ messages = {}
+ n_determined = None
+ while True:
+ data, addr = sock.recvfrom(1500)
+ req_id, seq, n, res = struct.unpack_from(">hhhh", data)
+ content = data[8:]
+
+ if n_determined and n_determined != n:
+ raise Exception('Inconsitent number of total messages, %d and %d' % (n_determined, n))
+ n_determined = n
+
+ if req_id != this_req_id:
+ raise Exception('Invalid request id: ' + req_id + ', expected ' + this_req_id)
+
+ if seq in messages:
+ raise Exception('Duplicate message for seq=' + seq)
+
+ messages[seq] = content
+ if len(messages) == n:
+ break
+
+ for k, v in sorted(messages.items(), key=lambda e: e[0]):
+ yield v
+
+ sock.close()
+
+def udp_call(msg, **kwargs):
+ return b''.join(udp_call_for_fragments(msg, **kwargs))
+
+class MemcacheTest(unittest.TestCase):
+ def set(self, key, value, flags=0, expiry=0):
+ self.assertEqual(call('set %s %d %d %d\r\n%s\r\n' % (key, flags, expiry, len(value), value)), b'STORED\r\n')
+
+ def delete(self, key):
+ self.assertEqual(call('delete %s\r\n' % key), b'DELETED\r\n')
+
+ def assertHasKey(self, key):
+ resp = call('get %s\r\n' % key)
+ if not resp.startswith(('VALUE %s' % key).encode()):
+ self.fail('Key \'%s\' should be present, but got: %s' % (key, resp.decode()))
+
+ def assertNoKey(self, key):
+ resp = call('get %s\r\n' % key)
+ if resp != b'END\r\n':
+ self.fail('Key \'%s\' should not be present, but got: %s' % (key, resp.decode()))
+
+ def setKey(self, key):
+ self.set(key, 'some value')
+
+ def getItemVersion(self, key):
+ m = re.match(r'VALUE %s \d+ \d+ (?P<version>\d+)' % key, call('gets %s\r\n' % key).decode())
+ return int(m.group('version'))
+
+ def getStat(self, name, call_fn=None):
+ if not call_fn: call_fn = call
+ resp = call_fn('stats\r\n').decode()
+ m = re.search(r'STAT %s (?P<value>.+)' % re.escape(name), resp, re.MULTILINE)
+ return m.group('value')
+
+ def flush(self):
+ self.assertEqual(call('flush_all\r\n'), b'OK\r\n')
+
+ def tearDown(self):
+ self.flush()
+
+class TcpSpecificTests(MemcacheTest):
+ def test_recovers_from_errors_in_the_stream(self):
+ with tcp_connection() as conn:
+ self.assertEqual(conn('get\r\n'), b'ERROR\r\n')
+ self.assertEqual(conn('get key\r\n'), b'END\r\n')
+
+ def test_incomplete_command_results_in_error(self):
+ s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+ s.connect(server_addr)
+ s.send(b'get')
+ s.shutdown(socket.SHUT_WR)
+ self.assertEqual(recv_all(s), b'ERROR\r\n')
+ s.close()
+
+ def test_stream_closed_results_in_error(self):
+ s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+ s.connect(server_addr)
+ s.shutdown(socket.SHUT_WR)
+ self.assertEqual(recv_all(s), b'')
+ s.close()
+
+ def test_unsuccesful_parsing_does_not_leave_data_behind(self):
+ with tcp_connection() as conn:
+ self.assertEqual(conn('set key 0 0 5\r\nhello\r\n'), b'STORED\r\n')
+ self.assertRegex(conn('delete a b c\r\n'), b'^(CLIENT_)?ERROR.*\r\n$')
+ self.assertEqual(conn('get key\r\n'), b'VALUE key 0 5\r\nhello\r\nEND\r\n')
+ self.assertEqual(conn('delete key\r\n'), b'DELETED\r\n')
+
+ def test_flush_all_no_reply(self):
+ self.assertEqual(call('flush_all noreply\r\n'), b'')
+
+ def test_set_no_reply(self):
+ self.assertEqual(call('set key 0 0 5 noreply\r\nhello\r\nget key\r\n'), b'VALUE key 0 5\r\nhello\r\nEND\r\n')
+ self.delete('key')
+
+ def test_delete_no_reply(self):
+ self.setKey('key')
+ self.assertEqual(call('delete key noreply\r\nget key\r\n'), b'END\r\n')
+
+ def test_add_no_reply(self):
+ self.assertEqual(call('add key 0 0 1 noreply\r\na\r\nget key\r\n'), b'VALUE key 0 1\r\na\r\nEND\r\n')
+ self.delete('key')
+
+ def test_replace_no_reply(self):
+ self.assertEqual(call('set key 0 0 1\r\na\r\n'), b'STORED\r\n')
+ self.assertEqual(call('replace key 0 0 1 noreply\r\nb\r\nget key\r\n'), b'VALUE key 0 1\r\nb\r\nEND\r\n')
+ self.delete('key')
+
+ def test_cas_noreply(self):
+ self.assertNoKey('key')
+ self.assertEqual(call('cas key 0 0 1 1 noreply\r\na\r\n'), b'')
+ self.assertNoKey('key')
+
+ self.assertEqual(call('add key 0 0 5\r\nhello\r\n'), b'STORED\r\n')
+ version = self.getItemVersion('key')
+
+ self.assertEqual(call('cas key 1 0 5 %d noreply\r\naloha\r\n' % (version + 1)), b'')
+ self.assertEqual(call('get key\r\n'), b'VALUE key 0 5\r\nhello\r\nEND\r\n')
+
+ self.assertEqual(call('cas key 1 0 5 %d noreply\r\naloha\r\n' % (version)), b'')
+ self.assertEqual(call('get key\r\n'), b'VALUE key 1 5\r\naloha\r\nEND\r\n')
+
+ self.delete('key')
+
+ @slow
+ def test_connection_statistics(self):
+ with tcp_connection() as conn:
+ curr_connections = int(self.getStat('curr_connections', call_fn=conn))
+ total_connections = int(self.getStat('total_connections', call_fn=conn))
+ with tcp_connection() as conn2:
+ self.assertEqual(curr_connections + 1, int(self.getStat('curr_connections', call_fn=conn)))
+ self.assertEqual(total_connections + 1, int(self.getStat('total_connections', call_fn=conn)))
+ self.assertEqual(total_connections + 1, int(self.getStat('total_connections', call_fn=conn)))
+ time.sleep(0.1)
+ self.assertEqual(curr_connections, int(self.getStat('curr_connections', call_fn=conn)))
+
+class UdpSpecificTests(MemcacheTest):
+ def test_large_response_is_split_into_mtu_chunks(self):
+ max_datagram_size = 1400
+ data = '1' * (max_datagram_size*3)
+ self.set('key', data)
+
+ chunks = list(udp_call_for_fragments('get key\r\n'))
+
+ for chunk in chunks:
+ self.assertLessEqual(len(chunk), max_datagram_size)
+
+ self.assertEqual(b''.join(chunks).decode(),
+ 'VALUE key 0 %d\r\n%s\r\n' \
+ 'END\r\n' % (len(data), data))
+
+ self.delete('key')
+
+class TestCommands(MemcacheTest):
+ def test_basic_commands(self):
+ self.assertEqual(call('get key\r\n'), b'END\r\n')
+ self.assertEqual(call('set key 0 0 5\r\nhello\r\n'), b'STORED\r\n')
+ self.assertEqual(call('get key\r\n'), b'VALUE key 0 5\r\nhello\r\nEND\r\n')
+ self.assertEqual(call('delete key\r\n'), b'DELETED\r\n')
+ self.assertEqual(call('delete key\r\n'), b'NOT_FOUND\r\n')
+ self.assertEqual(call('get key\r\n'), b'END\r\n')
+
+ def test_error_handling(self):
+ self.assertEqual(call('get\r\n'), b'ERROR\r\n')
+
+ @slow
+ def test_expiry(self):
+ self.assertEqual(call('set key 0 1 5\r\nhello\r\n'), b'STORED\r\n')
+ self.assertEqual(call('get key\r\n'), b'VALUE key 0 5\r\nhello\r\nEND\r\n')
+ time.sleep(2)
+ self.assertEqual(call('get key\r\n'), b'END\r\n')
+
+ @slow
+ def test_expiry_at_epoch_time(self):
+ expiry = int(time.time()) + 1
+ self.assertEqual(call('set key 0 %d 5\r\nhello\r\n' % expiry), b'STORED\r\n')
+ self.assertEqual(call('get key\r\n'), b'VALUE key 0 5\r\nhello\r\nEND\r\n')
+ time.sleep(2)
+ self.assertEqual(call('get key\r\n'), b'END\r\n')
+
+ def test_multiple_keys_in_get(self):
+ self.assertEqual(call('set key1 0 0 2\r\nv1\r\n'), b'STORED\r\n')
+ self.assertEqual(call('set key 0 0 2\r\nv2\r\n'), b'STORED\r\n')
+ resp = call('get key1 key\r\n')
+ self.assertRegex(resp, b'^(VALUE key1 0 2\r\nv1\r\nVALUE key 0 2\r\nv2\r\nEND\r\n)|(VALUE key 0 2\r\nv2\r\nVALUE key1 0 2\r\nv1\r\nEND\r\n)$')
+ self.delete("key")
+ self.delete("key1")
+
+ def test_flush_all(self):
+ self.set('key', 'value')
+ self.assertEqual(call('flush_all\r\n'), b'OK\r\n')
+ self.assertNoKey('key')
+
+ def test_keys_set_after_flush_remain(self):
+ self.assertEqual(call('flush_all\r\n'), b'OK\r\n')
+ self.setKey('key')
+ self.assertHasKey('key')
+ self.delete('key')
+
+ @slow
+ def test_flush_all_with_timeout_flushes_all_keys_even_those_set_after_flush(self):
+ self.setKey('key')
+ self.assertEqual(call('flush_all 2\r\n'), b'OK\r\n')
+ self.assertHasKey('key')
+ self.setKey('key2')
+ time.sleep(3)
+ self.assertNoKey('key')
+ self.assertNoKey('key2')
+
+ @slow
+ def test_subsequent_flush_is_merged(self):
+ self.setKey('key')
+ self.assertEqual(call('flush_all 2\r\n'), b'OK\r\n') # Can flush in anything between 1-2
+ self.assertEqual(call('flush_all 4\r\n'), b'OK\r\n') # Can flush in anything between 3-4
+ time.sleep(3)
+ self.assertHasKey('key')
+ self.setKey('key2')
+ time.sleep(4)
+ self.assertNoKey('key')
+ self.assertNoKey('key2')
+
+ @slow
+ def test_immediate_flush_cancels_delayed_flush(self):
+ self.assertEqual(call('flush_all 2\r\n'), b'OK\r\n')
+ self.assertEqual(call('flush_all\r\n'), b'OK\r\n')
+ self.setKey('key')
+ time.sleep(1)
+ self.assertHasKey('key')
+ self.delete('key')
+
+ @slow
+ def test_flushing_in_the_past(self):
+ self.setKey('key1')
+ time.sleep(1)
+ self.setKey('key2')
+ key2_time = int(time.time())
+ self.assertEqual(call('flush_all %d\r\n' % (key2_time - 1)), b'OK\r\n')
+ time.sleep(1)
+ self.assertNoKey("key1")
+ self.assertNoKey("key2")
+
+ @slow
+ def test_memcache_does_not_crash_when_flushing_with_already_expred_items(self):
+ self.assertEqual(call('set key1 0 2 5\r\nhello\r\n'), b'STORED\r\n')
+ time.sleep(1)
+ self.assertEqual(call('flush_all\r\n'), b'OK\r\n')
+
+ def test_response_spanning_many_datagrams(self):
+ key1_data = '1' * 1000
+ key2_data = '2' * 1000
+ key3_data = '3' * 1000
+ self.set('key1', key1_data)
+ self.set('key2', key2_data)
+ self.set('key3', key3_data)
+
+ resp = call('get key1 key2 key3\r\n').decode()
+
+ pattern = '^VALUE (?P<v1>.*?\r\n.*?)\r\nVALUE (?P<v2>.*?\r\n.*?)\r\nVALUE (?P<v3>.*?\r\n.*?)\r\nEND\r\n$'
+ self.assertRegex(resp, pattern)
+
+ m = re.match(pattern, resp)
+ self.assertEqual(set([m.group('v1'), m.group('v2'), m.group('v3')]),
+ set(['key1 0 %d\r\n%s' % (len(key1_data), key1_data),
+ 'key2 0 %d\r\n%s' % (len(key2_data), key2_data),
+ 'key3 0 %d\r\n%s' % (len(key3_data), key3_data)]))
+
+ self.delete('key1')
+ self.delete('key2')
+ self.delete('key3')
+
+ def test_version(self):
+ self.assertRegex(call('version\r\n'), b'^VERSION .*\r\n$')
+
+ def test_add(self):
+ self.assertEqual(call('add key 0 0 1\r\na\r\n'), b'STORED\r\n')
+ self.assertEqual(call('add key 0 0 1\r\na\r\n'), b'NOT_STORED\r\n')
+ self.delete('key')
+
+ def test_replace(self):
+ self.assertEqual(call('add key 0 0 1\r\na\r\n'), b'STORED\r\n')
+ self.assertEqual(call('replace key 0 0 1\r\na\r\n'), b'STORED\r\n')
+ self.delete('key')
+ self.assertEqual(call('replace key 0 0 1\r\na\r\n'), b'NOT_STORED\r\n')
+
+ def test_cas_and_gets(self):
+ self.assertEqual(call('cas key 0 0 1 1\r\na\r\n'), b'NOT_FOUND\r\n')
+ self.assertEqual(call('add key 0 0 5\r\nhello\r\n'), b'STORED\r\n')
+ version = self.getItemVersion('key')
+
+ self.assertEqual(call('set key 1 0 5\r\nhello\r\n'), b'STORED\r\n')
+ self.assertEqual(call('gets key\r\n').decode(), 'VALUE key 1 5 %d\r\nhello\r\nEND\r\n' % (version + 1))
+
+ self.assertEqual(call('cas key 0 0 5 %d\r\nhello\r\n' % (version)), b'EXISTS\r\n')
+ self.assertEqual(call('cas key 0 0 5 %d\r\naloha\r\n' % (version + 1)), b'STORED\r\n')
+ self.assertEqual(call('gets key\r\n').decode(), 'VALUE key 0 5 %d\r\naloha\r\nEND\r\n' % (version + 2))
+
+ self.delete('key')
+
+ def test_curr_items_stat(self):
+ self.assertEqual(0, int(self.getStat('curr_items')))
+ self.setKey('key')
+ self.assertEqual(1, int(self.getStat('curr_items')))
+ self.delete('key')
+ self.assertEqual(0, int(self.getStat('curr_items')))
+
+ def test_how_stats_change_with_different_commands(self):
+ get_count = int(self.getStat('cmd_get'))
+ set_count = int(self.getStat('cmd_set'))
+ flush_count = int(self.getStat('cmd_flush'))
+ total_items = int(self.getStat('total_items'))
+ get_misses = int(self.getStat('get_misses'))
+ get_hits = int(self.getStat('get_hits'))
+ cas_hits = int(self.getStat('cas_hits'))
+ cas_badval = int(self.getStat('cas_badval'))
+ cas_misses = int(self.getStat('cas_misses'))
+ delete_misses = int(self.getStat('delete_misses'))
+ delete_hits = int(self.getStat('delete_hits'))
+ curr_connections = int(self.getStat('curr_connections'))
+ incr_hits = int(self.getStat('incr_hits'))
+ incr_misses = int(self.getStat('incr_misses'))
+ decr_hits = int(self.getStat('decr_hits'))
+ decr_misses = int(self.getStat('decr_misses'))
+
+ call('get key\r\n')
+ get_count += 1
+ get_misses += 1
+
+ call('gets key\r\n')
+ get_count += 1
+ get_misses += 1
+
+ call('set key1 0 0 1\r\na\r\n')
+ set_count += 1
+ total_items += 1
+
+ call('get key1\r\n')
+ get_count += 1
+ get_hits += 1
+
+ call('add key1 0 0 1\r\na\r\n')
+ set_count += 1
+
+ call('add key2 0 0 1\r\na\r\n')
+ set_count += 1
+ total_items += 1
+
+ call('replace key1 0 0 1\r\na\r\n')
+ set_count += 1
+ total_items += 1
+
+ call('replace key3 0 0 1\r\na\r\n')
+ set_count += 1
+
+ call('cas key4 0 0 1 1\r\na\r\n')
+ set_count += 1
+ cas_misses += 1
+
+ call('cas key1 0 0 1 %d\r\na\r\n' % self.getItemVersion('key1'))
+ set_count += 1
+ get_count += 1
+ get_hits += 1
+ cas_hits += 1
+ total_items += 1
+
+ call('cas key1 0 0 1 %d\r\na\r\n' % (self.getItemVersion('key1') + 1))
+ set_count += 1
+ get_count += 1
+ get_hits += 1
+ cas_badval += 1
+
+ call('delete key1\r\n')
+ delete_hits += 1
+
+ call('delete key1\r\n')
+ delete_misses += 1
+
+ call('incr num 1\r\n')
+ incr_misses += 1
+ call('decr num 1\r\n')
+ decr_misses += 1
+
+ call('set num 0 0 1\r\n0\r\n')
+ set_count += 1
+ total_items += 1
+
+ call('incr num 1\r\n')
+ incr_hits += 1
+ call('decr num 1\r\n')
+ decr_hits += 1
+
+ self.flush()
+ flush_count += 1
+
+ self.assertEqual(get_count, int(self.getStat('cmd_get')))
+ self.assertEqual(set_count, int(self.getStat('cmd_set')))
+ self.assertEqual(flush_count, int(self.getStat('cmd_flush')))
+ self.assertEqual(total_items, int(self.getStat('total_items')))
+ self.assertEqual(get_hits, int(self.getStat('get_hits')))
+ self.assertEqual(get_misses, int(self.getStat('get_misses')))
+ self.assertEqual(cas_misses, int(self.getStat('cas_misses')))
+ self.assertEqual(cas_hits, int(self.getStat('cas_hits')))
+ self.assertEqual(cas_badval, int(self.getStat('cas_badval')))
+ self.assertEqual(delete_misses, int(self.getStat('delete_misses')))
+ self.assertEqual(delete_hits, int(self.getStat('delete_hits')))
+ self.assertEqual(0, int(self.getStat('curr_items')))
+ self.assertEqual(curr_connections, int(self.getStat('curr_connections')))
+ self.assertEqual(incr_misses, int(self.getStat('incr_misses')))
+ self.assertEqual(incr_hits, int(self.getStat('incr_hits')))
+ self.assertEqual(decr_misses, int(self.getStat('decr_misses')))
+ self.assertEqual(decr_hits, int(self.getStat('decr_hits')))
+
+ def test_incr(self):
+ self.assertEqual(call('incr key 0\r\n'), b'NOT_FOUND\r\n')
+
+ self.assertEqual(call('set key 0 0 1\r\n0\r\n'), b'STORED\r\n')
+ self.assertEqual(call('incr key 0\r\n'), b'0\r\n')
+ self.assertEqual(call('get key\r\n'), b'VALUE key 0 1\r\n0\r\nEND\r\n')
+
+ self.assertEqual(call('incr key 1\r\n'), b'1\r\n')
+ self.assertEqual(call('incr key 2\r\n'), b'3\r\n')
+ self.assertEqual(call('incr key %d\r\n' % (pow(2, 64) - 1)), b'2\r\n')
+ self.assertEqual(call('incr key %d\r\n' % (pow(2, 64) - 3)), b'18446744073709551615\r\n')
+ self.assertRegex(call('incr key 1\r\n').decode(), r'0(\w+)?\r\n')
+
+ self.assertEqual(call('set key 0 0 2\r\n1 \r\n'), b'STORED\r\n')
+ self.assertEqual(call('incr key 1\r\n'), b'2\r\n')
+
+ self.assertEqual(call('set key 0 0 2\r\n09\r\n'), b'STORED\r\n')
+ self.assertEqual(call('incr key 1\r\n'), b'10\r\n')
+
+ def test_decr(self):
+ self.assertEqual(call('decr key 0\r\n'), b'NOT_FOUND\r\n')
+
+ self.assertEqual(call('set key 0 0 1\r\n7\r\n'), b'STORED\r\n')
+ self.assertEqual(call('decr key 1\r\n'), b'6\r\n')
+ self.assertEqual(call('get key\r\n'), b'VALUE key 0 1\r\n6\r\nEND\r\n')
+
+ self.assertEqual(call('decr key 6\r\n'), b'0\r\n')
+ self.assertEqual(call('decr key 2\r\n'), b'0\r\n')
+
+ self.assertEqual(call('set key 0 0 2\r\n20\r\n'), b'STORED\r\n')
+ self.assertRegex(call('decr key 11\r\n').decode(), r'^9( )?\r\n$')
+
+ self.assertEqual(call('set key 0 0 3\r\n100\r\n'), b'STORED\r\n')
+ self.assertRegex(call('decr key 91\r\n').decode(), r'^9( )?\r\n$')
+
+ self.assertEqual(call('set key 0 0 2\r\n1 \r\n'), b'STORED\r\n')
+ self.assertEqual(call('decr key 1\r\n'), b'0\r\n')
+
+ self.assertEqual(call('set key 0 0 2\r\n09\r\n'), b'STORED\r\n')
+ self.assertEqual(call('decr key 1\r\n'), b'8\r\n')
+
+ def test_incr_and_decr_on_invalid_input(self):
+ error_msg = b'CLIENT_ERROR cannot increment or decrement non-numeric value\r\n'
+ for cmd in ['incr', 'decr']:
+ for value in ['', '-1', 'a', '0x1', '18446744073709551616']:
+ self.assertEqual(call('set key 0 0 %d\r\n%s\r\n' % (len(value), value)), b'STORED\r\n')
+ prev = call('get key\r\n')
+ self.assertEqual(call(cmd + ' key 1\r\n'), error_msg, "cmd=%s, value=%s" % (cmd, value))
+ self.assertEqual(call('get key\r\n'), prev)
+ self.delete('key')
+
+def wait_for_memcache_tcp(timeout=4):
+ s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
+ timeout_at = time.time() + timeout
+ while True:
+ if time.time() >= timeout_at:
+ raise TimeoutError()
+ try:
+ s.connect(server_addr)
+ s.close()
+ break
+ except ConnectionRefusedError:
+ time.sleep(0.1)
+
+
+def wait_for_memcache_udp(timeout=4):
+ timeout_at = time.time() + timeout
+ while True:
+ if time.time() >= timeout_at:
+ raise TimeoutError()
+ try:
+ udp_call('version\r\n', timeout=0.2)
+ break
+ except socket.timeout:
+ pass
+
+if __name__ == '__main__':
+ parser = argparse.ArgumentParser(description="memcache protocol tests")
+ parser.add_argument('--server', '-s', action="store", help="server adddress in <host>:<port> format", default="localhost:11211")
+ parser.add_argument('--udp', '-U', action="store_true", help="Use UDP protocol")
+ parser.add_argument('--fast', action="store_true", help="Run only fast tests")
+ args = parser.parse_args()
+
+ host, port = args.server.split(':')
+ server_addr = (host, int(port))
+
+ if args.udp:
+ call = udp_call
+ wait_for_memcache_udp()
+ else:
+ call = tcp_call
+ wait_for_memcache_tcp()
+
+ runner = unittest.TextTestRunner()
+ loader = unittest.TestLoader()
+ suite = unittest.TestSuite()
+ suite.addTest(loader.loadTestsFromTestCase(TestCommands))
+ if args.udp:
+ suite.addTest(loader.loadTestsFromTestCase(UdpSpecificTests))
+ else:
+ suite.addTest(loader.loadTestsFromTestCase(TcpSpecificTests))
+ result = runner.run(suite)
+ if not result.wasSuccessful():
+ sys.exit(1)