[1.7.0] Add DefinitionCache decorators, implement Memory decorator

- Move serialization responsibility to Config
- Create DefinitionCacheFactory
- Implement Null definition cache

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1117 48356398-32a2-884e-a903-53898d9a118a

tests/HTMLPurifier/DefinitionCache/DecoratorTest.php

@@ -0,0 +1,45 @@
+<?php
+
+require_once 'HTMLPurifier/DefinitionCacheHarness.php';
+require_once 'HTMLPurifier/DefinitionCache/Decorator.php';
+
+class HTMLPurifier_DefinitionCache_DecoratorTest extends HTMLPurifier_DefinitionCacheHarness
+{
+    
+    function test() {
+        
+        generate_mock_once('HTMLPurifier_DefinitionCache');
+        $mock =& new HTMLPurifier_DefinitionCacheMock($this);
+        $mock->type = 'Test';
+        
+        $cache = new HTMLPurifier_DefinitionCache_Decorator();
+        $cache = $cache->decorate($mock);
+        
+        $this->assertIdentical($cache->type, $mock->type);
+        
+        $def = $this->generateDefinition();
+        $config = $this->generateConfigMock();
+        
+        $mock->expectOnce('add', array($def, $config));
+        $cache->add($def, $config);
+        
+        $mock->expectOnce('set', array($def, $config));
+        $cache->set($def, $config);
+        
+        $mock->expectOnce('replace', array($def, $config));
+        $cache->replace($def, $config);
+        
+        $mock->expectOnce('get', array($config));
+        $cache->get($config);
+        
+        $mock->expectOnce('flush', array());
+        $cache->flush();
+        
+        $mock->expectOnce('cleanup', array($config));
+        $cache->cleanup($config);
+        
+    }
+    
+}
+
+?>