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
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
|
<?php
class WANObjectCacheTest extends MediaWikiTestCase {
/** @var WANObjectCache */
private $cache;
protected function setUp() {
parent::setUp();
if ( $this->getCliArg( 'use-wanobjectcache' ) ) {
$name = $this->getCliArg( 'use-wanobjectcache' );
$this->cache = ObjectCache::getWANInstance( $name );
} else {
$this->cache = new WANObjectCache( array(
'cache' => new HashBagOStuff(),
'pool' => 'testcache-hash',
'relayer' => new EventRelayerNull( array() )
) );
}
$wanCache = TestingAccessWrapper::newFromObject( $this->cache );
$this->internalCache = $wanCache->cache;
}
/**
* @dataProvider provider_testSetAndGet
* @covers WANObjectCache::set()
* @covers WANObjectCache::get()
* @param mixed $value
* @param integer $ttl
*/
public function testSetAndGet( $value, $ttl ) {
$key = wfRandomString();
$this->cache->set( $key, $value, $ttl );
$curTTL = null;
$this->assertEquals( $value, $this->cache->get( $key, $curTTL ) );
if ( is_infinite( $ttl ) || $ttl == 0 ) {
$this->assertTrue( is_infinite( $curTTL ), "Current TTL is infinite" );
} else {
$this->assertGreaterThan( 0, $curTTL, "Current TTL > 0" );
$this->assertLessThanOrEqual( $ttl, $curTTL, "Current TTL < nominal TTL" );
}
}
public static function provider_testSetAndGet() {
return array(
array( 14141, 3 ),
array( 3535.666, 3 ),
array( array(), 3 ),
array( null, 3 ),
array( '0', 3 ),
array( (object)array( 'meow' ), 3 ),
array( INF, 3 ),
array( '', 3 ),
array( 'pizzacat', INF ),
);
}
public function testGetNotExists() {
$key = wfRandomString();
$curTTL = null;
$value = $this->cache->get( $key, $curTTL );
$this->assertFalse( $value, "Non-existing key has false value" );
$this->assertNull( $curTTL, "Non-existing key has null current TTL" );
}
public function testSetOver() {
$key = wfRandomString();
for ( $i = 0; $i < 3; ++$i ) {
$value = wfRandomString();
$this->cache->set( $key, $value, 3 );
$this->assertEquals( $this->cache->get( $key ), $value );
}
}
/**
* @covers WANObjectCache::getWithSetCallback()
*/
public function testGetWithSetCallback() {
$cache = $this->cache;
$key = wfRandomString();
$value = wfRandomString();
$cKey1 = wfRandomString();
$cKey2 = wfRandomString();
$wasSet = 0;
$func = function( $old, &$ttl ) use ( &$wasSet, $value ) {
++$wasSet;
$ttl = 20; // override with another value
return $value;
};
$wasSet = 0;
$v = $cache->getWithSetCallback( $key, $func, 30, array(), array( 'lockTSE' => 5 ) );
$this->assertEquals( $v, $value );
$this->assertEquals( 1, $wasSet, "Value regenerated" );
$curTTL = null;
$v = $cache->get( $key, $curTTL );
$this->assertLessThanOrEqual( 20, $curTTL, 'Current TTL between 19-20 (overriden)' );
$this->assertGreaterThanOrEqual( 19, $curTTL, 'Current TTL between 19-20 (overriden)' );
$wasSet = 0;
$v = $cache->getWithSetCallback( $key, $func, 30, array(), array( 'lockTSE' => 5 ) );
$this->assertEquals( $v, $value );
$this->assertEquals( 0, $wasSet, "Value not regenerated" );
$priorTime = microtime( true );
usleep( 1 );
$wasSet = 0;
$v = $cache->getWithSetCallback( $key, $func, 30, array( $cKey1, $cKey2 ) );
$this->assertEquals( $v, $value );
$this->assertEquals( 1, $wasSet, "Value regenerated due to check keys" );
$t1 = $cache->getCheckKeyTime( $cKey1 );
$this->assertGreaterThanOrEqual( $priorTime, $t1, 'Check keys generated on miss' );
$t2 = $cache->getCheckKeyTime( $cKey2 );
$this->assertGreaterThanOrEqual( $priorTime, $t2, 'Check keys generated on miss' );
$priorTime = microtime( true );
$wasSet = 0;
$v = $cache->getWithSetCallback( $key, $func, 30, array( $cKey1, $cKey2 ) );
$this->assertEquals( $v, $value );
$this->assertEquals( 1, $wasSet, "Value regenerated due to still-recent check keys" );
$t1 = $cache->getCheckKeyTime( $cKey1 );
$this->assertLessThanOrEqual( $priorTime, $t1, 'Check keys did not change again' );
$t2 = $cache->getCheckKeyTime( $cKey2 );
$this->assertLessThanOrEqual( $priorTime, $t2, 'Check keys did not change again' );
$curTTL = null;
$v = $cache->get( $key, $curTTL, array( $cKey1, $cKey2 ) );
$this->assertEquals( $v, $value );
$this->assertLessThanOrEqual( 0, $curTTL, "Value has current TTL < 0 due to check keys" );
}
/**
* @covers WANObjectCache::getWithSetCallback()
*/
public function testLockTSE() {
$cache = $this->cache;
$key = wfRandomString();
$value = wfRandomString();
$calls = 0;
$func = function() use ( &$calls, $value ) {
++$calls;
return $value;
};
$cache->delete( $key );
$ret = $cache->getWithSetCallback( $key, 30, $func, array(), array( 'lockTSE' => 5 ) );
$this->assertEquals( $value, $ret );
$this->assertEquals( 1, $calls, 'Value was populated' );
// Acquire a lock to verify that getWithSetCallback uses lockTSE properly
$this->internalCache->lock( $key, 0 );
$ret = $cache->getWithSetCallback( $key, 30, $func, array(), array( 'lockTSE' => 5 ) );
$this->assertEquals( $value, $ret );
$this->assertEquals( 1, $calls, 'Callback was not used' );
}
/**
* @covers WANObjectCache::getMulti()
*/
public function testGetMulti() {
$cache = $this->cache;
$value1 = array( 'this' => 'is', 'a' => 'test' );
$value2 = array( 'this' => 'is', 'another' => 'test' );
$key1 = wfRandomString();
$key2 = wfRandomString();
$key3 = wfRandomString();
$cache->set( $key1, $value1, 5 );
$cache->set( $key2, $value2, 10 );
$curTTLs = array();
$this->assertEquals(
array( $key1 => $value1, $key2 => $value2 ),
$cache->getMulti( array( $key1, $key2, $key3 ), $curTTLs )
);
$this->assertEquals( 2, count( $curTTLs ), "Two current TTLs in array" );
$this->assertGreaterThan( 0, $curTTLs[$key1], "Key 1 has current TTL > 0" );
$this->assertGreaterThan( 0, $curTTLs[$key2], "Key 2 has current TTL > 0" );
$cKey1 = wfRandomString();
$cKey2 = wfRandomString();
$curTTLs = array();
$this->assertEquals(
array( $key1 => $value1, $key2 => $value2 ),
$cache->getMulti( array( $key1, $key2, $key3 ), $curTTLs ),
'Result array populated'
);
$priorTime = microtime( true );
usleep( 1 );
$curTTLs = array();
$this->assertEquals(
array( $key1 => $value1, $key2 => $value2 ),
$cache->getMulti( array( $key1, $key2, $key3 ), $curTTLs, array( $cKey1, $cKey2 ) ),
"Result array populated even with new check keys"
);
$t1 = $cache->getCheckKeyTime( $cKey1 );
$this->assertGreaterThanOrEqual( $priorTime, $t1, 'Check key 1 generated on miss' );
$t2 = $cache->getCheckKeyTime( $cKey2 );
$this->assertGreaterThanOrEqual( $priorTime, $t2, 'Check key 2 generated on miss' );
$this->assertEquals( 2, count( $curTTLs ), "Current TTLs array set" );
$this->assertLessThanOrEqual( 0, $curTTLs[$key1], 'Key 1 has current TTL <= 0' );
$this->assertLessThanOrEqual( 0, $curTTLs[$key2], 'Key 2 has current TTL <= 0' );
usleep( 1 );
$curTTLs = array();
$this->assertEquals(
array( $key1 => $value1, $key2 => $value2 ),
$cache->getMulti( array( $key1, $key2, $key3 ), $curTTLs, array( $cKey1, $cKey2 ) ),
"Result array still populated even with new check keys"
);
$this->assertEquals( 2, count( $curTTLs ), "Current TTLs still array set" );
$this->assertLessThan( 0, $curTTLs[$key1], 'Key 1 has negative current TTL' );
$this->assertLessThan( 0, $curTTLs[$key2], 'Key 2 has negative current TTL' );
}
/**
* @covers WANObjectCache::delete()
*/
public function testDelete() {
$key = wfRandomString();
$value = wfRandomString();
$this->cache->set( $key, $value );
$curTTL = null;
$v = $this->cache->get( $key, $curTTL );
$this->assertEquals( $value, $v, "Key was created with value" );
$this->assertGreaterThan( 0, $curTTL, "Existing key has current TTL > 0" );
$this->cache->delete( $key );
$curTTL = null;
$v = $this->cache->get( $key, $curTTL );
$this->assertFalse( $v, "Deleted key has false value" );
$this->assertLessThan( 0, $curTTL, "Deleted key has current TTL < 0" );
$this->cache->set( $key, $value . 'more' );
$this->assertFalse( $v, "Deleted key is tombstoned and has false value" );
$this->assertLessThan( 0, $curTTL, "Deleted key is tombstoned and has current TTL < 0" );
}
/**
* @covers WANObjectCache::touchCheckKey()
* @covers WANObjectCache::resetCheckKey()
* @covers WANObjectCache::getCheckKeyTime()
*/
public function testTouchKeys() {
$key = wfRandomString();
$priorTime = microtime( true );
usleep( 1 );
$t0 = $this->cache->getCheckKeyTime( $key );
$this->assertGreaterThanOrEqual( $priorTime, $t0, 'Check key auto-created' );
$priorTime = microtime( true );
usleep( 1 );
$this->cache->touchCheckKey( $key );
$t1 = $this->cache->getCheckKeyTime( $key );
$this->assertGreaterThanOrEqual( $priorTime, $t1, 'Check key created' );
$t2 = $this->cache->getCheckKeyTime( $key );
$this->assertEquals( $t1, $t2, 'Check key time did not change' );
usleep( 1 );
$this->cache->touchCheckKey( $key );
$t3 = $this->cache->getCheckKeyTime( $key );
$this->assertGreaterThan( $t2, $t3, 'Check key time increased' );
$t4 = $this->cache->getCheckKeyTime( $key );
$this->assertEquals( $t3, $t4, 'Check key time did not change' );
usleep( 1 );
$this->cache->resetCheckKey( $key );
$t5 = $this->cache->getCheckKeyTime( $key );
$this->assertGreaterThan( $t4, $t5, 'Check key time increased' );
$t6 = $this->cache->getCheckKeyTime( $key );
$this->assertEquals( $t5, $t6, 'Check key time did not change' );
}
}
|
