FLOW3-Composer /Tests/Unit/Cache/Backend/ApcBackendTest.php

Language PHP Lines 249
MD5 Hash 399d9e2ba8a51d322d35cd415b1df523
Repository https://github.com/christianjul/FLOW3-Composer.git View Raw File
  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
<?php
namespace TYPO3\FLOW3\Tests\Unit\Cache\Backend;

/*                                                                        *
 * This script belongs to the FLOW3 framework.                            *
 *                                                                        *
 * It is free software; you can redistribute it and/or modify it under    *
 * the terms of the GNU Lesser General Public License, either version 3   *
 * of the License, or (at your option) any later version.                 *
 *                                                                        *
 * The TYPO3 project - inspiring people to share!                         *
 *                                                                        */

use TYPO3\FLOW3\Core\ApplicationContext;

/**
 * Testcase for the APC cache backend
 *
 */
class ApcBackendTest extends \TYPO3\FLOW3\Tests\UnitTestCase {

	/**
	 * @var \TYPO3\FLOW3\Utility\Environment
	 */
	protected $mockEnvironment;

	/**
	 * Sets up this testcase
	 *
	 * @return void
	 */
	public function setUp() {
		$this->markTestSkipped('Disabling ALL apc tests for now as they are so unreliable');
		if (!extension_loaded('apc') || ini_get('apc.enabled') == 0 || ini_get('apc.enable_cli') == 0) {
			$this->markTestSkipped('APC extension was not available, or it was disabled for CLI.');
		}
		if (ini_get('apc.slam_defense') == 1) {
			$this->markTestSkipped('This testcase can only be executed with apc.slam_defense = Off');
		}
		$this->mockEnvironment = $this->getMock('TYPO3\FLOW3\Utility\Environment', array(), array(), '', FALSE);
	}

	/**
	 * @test
	 * @expectedException \TYPO3\FLOW3\Cache\Exception
	 */
	public function setThrowsExceptionIfNoFrontEndHasBeenSet() {
		$backend = new \TYPO3\FLOW3\Cache\Backend\ApcBackend(new ApplicationContext('Testing'));
		$backend->injectEnvironment($this->mockEnvironment);
		$data = 'Some data';
		$identifier = 'MyIdentifier' . md5(uniqid(mt_rand(), TRUE));
		$backend->set($identifier, $data);
	}

	/**
	 * @test
	 */
	public function itIsPossibleToSetAndCheckExistenceInCache() {
		$backend = $this->setUpBackend();
		$data = 'Some data';
		$identifier = 'MyIdentifier' . md5(uniqid(mt_rand(), TRUE));
		$backend->set($identifier, $data);
		$inCache = $backend->has($identifier);
		$this->assertTrue($inCache, 'APC backend failed to set and check entry');
	}

	/**
	 * @ test
	 */
	public function itIsPossibleToSetAndGetEntry() {
		$backend = $this->setUpBackend();
		$data = 'Some data';
		$identifier = 'MyIdentifier' . md5(uniqid(mt_rand(), TRUE));
		$backend->set($identifier, $data);
		$fetchedData = $backend->get($identifier);
		$this->assertEquals($data, $fetchedData, 'APC backend failed to set and retrieve data');
	}

	/**
	 * @test
	 */
	public function itIsPossibleToRemoveEntryFromCache() {
		$backend = $this->setUpBackend();
		$data = 'Some data';
		$identifier = 'MyIdentifier' . md5(uniqid(mt_rand(), TRUE));
		$backend->set($identifier, $data);
		$backend->remove($identifier);
		$inCache = $backend->has($identifier);
		$this->assertFalse($inCache, 'Failed to set and remove data from APC backend');
	}

	/**
	 * @test
	 */
	public function itIsPossibleToOverwriteAnEntryInTheCache() {
		$backend = $this->setUpBackend();
		$data = 'Some data';
		$identifier = 'MyIdentifier' . md5(uniqid(mt_rand(), TRUE));
		$backend->set($identifier, $data);
		$otherData = 'some other data';
		$backend->set($identifier, $otherData);
		$fetchedData = $backend->get($identifier);
		$this->assertEquals($otherData, $fetchedData, 'APC backend failed to overwrite and retrieve data');
	}

	/**
	 * @test
	 */
	public function findIdentifiersByTagFindsSetEntries() {
		$backend = $this->setUpBackend();

		$data = 'Some data';
		$identifier = 'MyIdentifier' . md5(uniqid(mt_rand(), TRUE));
		$backend->set($identifier, $data, array('UnitTestTag%tag1', 'UnitTestTag%tag2'));

		$retrieved = $backend->findIdentifiersByTag('UnitTestTag%tag1');
		$this->assertEquals($identifier, $retrieved[0], 'Could not retrieve expected entry by tag.');

		$retrieved = $backend->findIdentifiersByTag('UnitTestTag%tag2');
		$this->assertEquals($identifier, $retrieved[0], 'Could not retrieve expected entry by tag.');
	}

	/**
	 * @test
	 */
	public function setRemovesTagsFromPreviousSet() {
		$backend = $this->setUpBackend();

		$data = 'Some data';
		$identifier = 'MyIdentifier' . md5(uniqid(mt_rand(), TRUE));
		$backend->set($identifier, $data, array('UnitTestTag%tag1', 'UnitTestTag%tagX'));
		$backend->set($identifier, $data, array('UnitTestTag%tag3'));

		$retrieved = $backend->findIdentifiersByTag('UnitTestTag%tagX');
		$this->assertEquals(array(), $retrieved, 'Found entry which should no longer exist.');
	}

	/**
	 * @test
	 */
	public function hasReturnsFalseIfTheEntryDoesntExist() {
		$backend = $this->setUpBackend();
		$identifier = 'NonExistingIdentifier' . md5(uniqid(mt_rand(), TRUE));
		$inCache = $backend->has($identifier);
		$this->assertFalse($inCache,'"has" did not return false when checking on non existing identifier');
	}

	/**
	 * @test
	 */
	public function removeReturnsFalseIfTheEntryDoesntExist() {
		$backend = $this->setUpBackend();
		$identifier = 'NonExistingIdentifier' . md5(uniqid(mt_rand(), TRUE));
		$inCache = $backend->remove($identifier);
		$this->assertFalse($inCache,'"remove" did not return false when checking on non existing identifier');
	}

	/**
	 * @test
	 */
	public function flushByTagRemovesCacheEntriesWithSpecifiedTag() {
		$backend = $this->setUpBackend();

		$data = 'some data' . microtime();
		$backend->set('BackendAPCTest1', $data, array('UnitTestTag%test', 'UnitTestTag%boring'));
		$backend->set('BackendAPCTest2', $data, array('UnitTestTag%test', 'UnitTestTag%special'));
		$backend->set('BackendAPCTest3', $data, array('UnitTestTag%test'));

		$backend->flushByTag('UnitTestTag%special');

		$this->assertTrue($backend->has('BackendAPCTest1'), 'BackendAPCTest1');
		$this->assertFalse($backend->has('BackendAPCTest2'), 'BackendAPCTest2');
		$this->assertTrue($backend->has('BackendAPCTest3'), 'BackendAPCTest3');
	}

	/**
	 * @test
	 */
	public function flushRemovesAllCacheEntries() {
		$this->markTestSkipped('Somehow, this test does not work...');
		$backend = $this->setUpBackend();

		$data = 'some data' . microtime();
		$backend->set('BackendAPCTest1', $data);
		$backend->set('BackendAPCTest2', $data);
		$backend->set('BackendAPCTest3', $data);

		$backend->flush();

		$this->assertFalse($backend->has('BackendAPCTest1'), 'BackendAPCTest1');
		$this->assertFalse($backend->has('BackendAPCTest2'), 'BackendAPCTest2');
		$this->assertFalse($backend->has('BackendAPCTest3'), 'BackendAPCTest3');
	}

	/**
	 * @test
	 */
	public function flushRemovesOnlyOwnEntries() {
		$thisCache = $this->getMock('TYPO3\FLOW3\Cache\Frontend\FrontendInterface', array(), array(), '', FALSE);
		$thisCache->expects($this->any())->method('getIdentifier')->will($this->returnValue('thisCache'));
		$thisBackend = new \TYPO3\FLOW3\Cache\Backend\ApcBackend('Testing');
		$thisBackend->injectEnvironment($this->mockEnvironment);
		$thisBackend->setCache($thisCache);

		$thatCache = $this->getMock('TYPO3\FLOW3\Cache\Frontend\FrontendInterface', array(), array(), '', FALSE);
		$thatCache->expects($this->any())->method('getIdentifier')->will($this->returnValue('thatCache'));
		$thatBackend = new \TYPO3\FLOW3\Cache\Backend\ApcBackend('Testing');
		$thatBackend->injectEnvironment($this->mockEnvironment);
		$thatBackend->setCache($thatCache);

		$thisBackend->set('thisEntry', 'Hello');
		$thatBackend->set('thatEntry', 'World!');
		$thatBackend->flush();

		$this->assertEquals('Hello', $thisBackend->get('thisEntry'));
		$this->assertFalse($thatBackend->has('thatEntry'));
	}

	/**
	 * Check if we can store ~5 MB of data, this gives some headroom.
	 *
	 * @test
	 */
	public function largeDataIsStored() {
		$backend = $this->setUpBackend();

		$data = str_repeat('abcde', 1024 * 1024);
		$identifier = 'tooLargeData' . md5(uniqid(mt_rand(), TRUE));
		$backend->set($identifier, $data);

		$this->assertTrue($backend->has($identifier));
		$this->assertEquals($backend->get($identifier), $data);
	}

	/**
	 * Sets up the APC backend used for testing
	 *
	 * @return \TYPO3\FLOW3\Cache\Backend\ApcBackend
	 */
	protected function setUpBackend() {
		$cache = $this->getMock('TYPO3\FLOW3\Cache\Frontend\FrontendInterface', array(), array(), '', FALSE);
		$backend = new \TYPO3\FLOW3\Cache\Backend\ApcBackend(new ApplicationContext('Testing'));
		$backend->injectEnvironment($this->mockEnvironment);
		$backend->setCache($cache);
		return $backend;
	}

}
?>
Back to Top