silverstripe-framework/tests/cache/CacheTest.php

<?php 

class CacheTest extends SapphireTest {

	function testCacheBasics() {
		$cache = SS_Cache::factory('test');
		
		$cache->save('Good', 'cachekey');
		$this->assertEquals('Good', $cache->load('cachekey'));
	}
	
	function testCacheCanBeDisabled() {
		SS_Cache::set_cache_lifetime('test', -1, 10);
		
		$cache = SS_Cache::factory('test');
		
		$cache->save('Good', 'cachekey');
		$this->assertFalse($cache->load('cachekey'));
	}
	
	function testCacheLifetime() {
		SS_Cache::set_cache_lifetime('test', 0.5, 20);
		
		$cache = SS_Cache::factory('test');
		$this->assertEquals(0.5, $cache->getOption('lifetime'));

		$cache->save('Good', 'cachekey');
		$this->assertEquals('Good', $cache->load('cachekey'));
		
		sleep(1);
		
		$this->assertFalse($cache->load('cachekey'));
	}

	function testCacheSeperation() {
		$cache1 = SS_Cache::factory('test1');
		$cache2 = SS_Cache::factory('test2');
		
		$cache1->save('Foo', 'cachekey');
		$cache2->save('Bar', 'cachekey');
		$this->assertEquals('Foo', $cache1->load('cachekey'));
		$this->assertEquals('Bar', $cache2->load('cachekey'));
		
		$cache1->remove('cachekey');
		$this->assertFalse($cache1->load('cachekey'));
		$this->assertEquals('Bar', $cache2->load('cachekey'));
	}

	function testCacheDefault() {
		SS_Cache::set_cache_lifetime('default', 1200);
		$default = SS_Cache::get_cache_lifetime('default');

		$this->assertEquals(1200, $default['lifetime']);

		$cache = SS_Cache::factory('somethingnew');

		$this->assertEquals(1200, $cache->getOption('lifetime'));
	}

}