1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
|
"""
Useful testing utilities.
This module is considered public API.
"""
import time
import six
from pymemcache.exceptions import MemcacheIllegalInputError
class MockMemcacheClient(object):
"""
A (partial) in-memory mock for Clients.
"""
def __init__(self,
server=None,
serializer=None,
deserializer=None,
connect_timeout=None,
timeout=None,
no_delay=False,
ignore_exc=False,
default_noreply=True,
allow_unicode_keys=False,
encoding='ascii'):
self._contents = {}
self.serializer = serializer
self.deserializer = deserializer
self.allow_unicode_keys = allow_unicode_keys
# Unused, but present for interface compatibility
self.server = server
self.connect_timeout = connect_timeout
self.timeout = timeout
self.no_delay = no_delay
self.ignore_exc = ignore_exc
self.encoding = encoding
def get(self, key, default=None):
if not self.allow_unicode_keys:
if isinstance(key, six.string_types):
try:
if isinstance(key, bytes):
key = key.decode().encode('ascii')
else:
key = key.encode('ascii')
except (UnicodeEncodeError, UnicodeDecodeError):
raise MemcacheIllegalInputError
if key not in self._contents:
return default
expire, value, flags = self._contents[key]
if expire and expire < time.time():
del self._contents[key]
return default
if self.deserializer:
return self.deserializer(key, value, flags)
return value
def get_many(self, keys):
out = {}
for key in keys:
value = self.get(key)
if value is not None:
out[key] = value
return out
get_multi = get_many
def set(self, key, value, expire=0, noreply=True):
if not self.allow_unicode_keys:
if isinstance(key, six.string_types):
try:
if isinstance(key, bytes):
key = key.decode().encode()
else:
key = key.encode(self.encoding)
except (UnicodeEncodeError, UnicodeDecodeError):
raise MemcacheIllegalInputError
if (isinstance(value, six.string_types) and
not isinstance(value, six.binary_type)):
try:
value = value.encode(self.encoding)
except (UnicodeEncodeError, UnicodeDecodeError):
raise MemcacheIllegalInputError
flags = 0
if self.serializer:
value, flags = self.serializer(key, value)
if expire:
expire += time.time()
self._contents[key] = expire, value, flags
return True
def set_many(self, values, expire=None, noreply=True):
for key, value in six.iteritems(values):
self.set(key, value, expire, noreply)
return []
set_multi = set_many
def incr(self, key, value, noreply=False):
current = self.get(key)
present = current is not None
if present:
self.set(key, current + value, noreply=noreply)
return None if noreply or not present else current + value
def decr(self, key, value, noreply=False):
current = self.get(key)
if current is None:
return
self.set(key, current - value, noreply=noreply)
return current - value
def add(self, key, value, expire=None, noreply=True):
current = self.get(key)
present = current is not None
if not present:
self.set(key, value, expire, noreply)
return not present
def delete(self, key, noreply=True):
current = self._contents.pop(key, None)
present = current is not None
return noreply or present
def delete_many(self, keys, noreply=True):
for key in keys:
self.delete(key, noreply)
return True
delete_multi = delete_many
def stats(self):
# I make no claim that these values make any sense, but the format
# of the output is the same as for pymemcache.client.Client.stats()
return {
"version": "MockMemcacheClient",
"rusage_user": 1.0,
"rusage_system": 1.0,
"hash_is_expanding": False,
"slab_reassign_running": False,
"inter": "in-memory",
"evictions": False,
"growth_factor": 1.0,
"stat_key_prefix": "",
"umask": 0o644,
"detail_enabled": False,
"cas_enabled": False,
"auth_enabled_sasl": False,
"maxconns_fast": False,
"slab_reassign": False,
"slab_automove": False,
}
|