diff --git a/tests/cache/CacheKeyTest.php b/tests/cache/CacheKeyTest.php
new file mode 100644
index 0000000..2b050ef
--- /dev/null
+++ b/tests/cache/CacheKeyTest.php
@@ -0,0 +1,85 @@
+<?php
+
+/*
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage UnitTests
+ * @since 2011-10-14
+ * 
+ * Unit tests for CacheKey class
+ */
+
+
+/**
+ * @TODO: CacheKey->getExpire() method never used
+ */
+
+require_once dirname(__FILE__) . '/../../cache/Cache.php';
+require_once dirname(__FILE__) . '/../../cache/CacheKey.php';
+
+class CacheKeyTest extends PHPUnit_Framework_TestCase
+{
+
+    private $cache;
+    
+    
+    public function testConstructor()
+    {
+        $mock = $this->getMock('Cache');
+        
+        $cache = new CacheKey($mock, 'anything', array('one', 'two', 'three'),200);
+        $this->assertAttributeEquals('anything_one|two|three', 'key', $cache);
+        
+    }
+    
+    public function testExpire()
+    {
+        $this->cache = new CacheKey($this->getMock('Cache'), 'key');
+        $this->assertAttributeEquals(0, 'expire', $this->cache);
+        $this->cache->setExpire(20);
+        $this->assertAttributeEquals(20, 'expire', $this->cache);
+    }
+    
+    public function testGetExpire()
+    {
+        $this->cache = new CacheKey(null, 'key');
+        $this->cache->setExpire(100);
+        
+        $getExpireMethod = new ReflectionMethod('CacheKey',  'getExpire');
+        $getExpireMethod->setAccessible(TRUE);
+        
+        $this->assertEquals(100, $getExpireMethod->invoke($this->cache));
+    }
+    
+    public function testGetSet()
+    {
+        $mockCacher = $this->getMock('Cache');
+        $mockCacher->expects($this->any())
+                ->method('set')
+                ->with('any', 'some', 0);
+
+        $mockCacher->expects($this->any())
+                ->method('get')
+                ->with('any')
+                ->will($this->returnValue('some'));
+        
+        $this->cache = new CacheKey($mockCacher, 'any');
+        $this->cache->set('some');
+        $this->assertEquals('some', $this->cache->get());        
+    }
+    
+    public function testDel()
+    {
+        $mockCacher = $this->getMock('Cacher', array('del'));
+        
+        $mockCacher->expects($this->any())
+                ->method('del')
+                ->with('some')
+                ->will($this->returnValue(true));
+        
+        $cache = new CacheKey($mockCacher, 'some');
+        $this->assertTrue($cache->del());
+    }
+
+}
\ No newline at end of file
diff --git a/tests/cache/CacherTest.php b/tests/cache/CacherTest.php
new file mode 100644
index 0000000..dfcc565
--- /dev/null
+++ b/tests/cache/CacherTest.php
@@ -0,0 +1,70 @@
+<?php
+
+/*
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage UnitTests
+ * @since 2011-10-25
+ * 
+ * Unit tests for Cacher class
+ */
+
+
+require_once dirname(__FILE__) . '/../../cache/Cache.php';
+require_once dirname(__FILE__) . '/../../cache/Cacher.php';
+require_once dirname(__FILE__) . '/../../Registry.php';
+require_once dirname(__FILE__) . '/../../Config.php';
+
+class CacherTest extends PHPUnit_Framework_TestCase
+{
+
+    private $mock;
+    
+    protected function setUp()
+    {
+        set_new_overload(array($this, 'newCallback'));
+    }
+
+    /**
+     * @expectedException Exception
+     * @expectedExcepptionMessage Cache driver
+     */
+    public function testNotExtendsCache()
+    {
+        Cacher::get('Cacher');
+    }
+
+    public function testGet()
+    {        
+        $this->mock = $this->getMockForAbstractClass(
+                'Cache',                                      /* name of class to mock     */ 
+                array(),                               /* list of methods to mock   */ 
+                'CacheMock'                               /* name for mocked class     */
+        );
+        
+        $this->assertTrue(Cacher::get('Cache') instanceof Cache);
+    }
+    
+    public function testCacheAlreadySet()
+    {
+        $this->assertTrue(Cacher::get('Cache') instanceof Cache);        
+    }
+
+    protected function newCallback($className)
+    {
+        switch ($className) {
+            case 'Cache':
+                return 'CacheMock';
+            default:
+                return $className;
+        }
+    }
+
+    public function tearDown()
+    {
+        unset_new_overload();
+    }
+
+}
+
diff --git a/tests/cache/MemcacheCacheTest.php b/tests/cache/MemcacheCacheTest.php
new file mode 100644
index 0000000..ec8bd02
--- /dev/null
+++ b/tests/cache/MemcacheCacheTest.php
@@ -0,0 +1,204 @@
+<?php
+
+/*
+ * @copyright NetMonsters <team@netmonsters.ru>
+ * @link http://netmonsters.ru
+ * @package Majestic
+ * @subpackage UnitTests
+ * @since 2011-10-25
+ * 
+ * Unit tests for MemcacheCache class
+ */
+
+
+require_once dirname(__FILE__) . '/../../cache/Cache.php';
+require_once dirname(__FILE__) . '/../../cache/MemcacheCache.php';
+
+class MemcacheCacheTest extends PHPUnit_Framework_TestCase
+{
+
+    protected function setUp()
+    {
+        $this->getMock('Memcache');
+
+        set_new_overload(array($this, 'newCallback'));
+    }
+
+    public function testConstruct()
+    {
+        $config = array('key_salt' => 'some', 'host' => array('hostname' => 'localhost', 'port' => 8080));
+
+
+        $memcache = new MemcacheCache($config);
+        $this->assertAttributeInstanceOf('TestCache', 'connection', $memcache);
+    }
+
+    /**
+     * @expectedException Exception
+     * @expectedExceptionMessage Configuration must have a
+     * @TODO: MemcacheCache::__construct - empty config array passes with no host params
+     */
+    public function testWrongConfig()
+    {
+        $config = array('some' => array());
+
+        $memcache = new MemcacheCache($config);
+    }
+
+    public function testAddGet()
+    {
+        $memcache = new MemcacheCache(array());
+        $this->assertTrue($memcache->add('key', 'value'));
+        $this->assertEquals('value', $memcache->get('key'));
+        $this->assertFalse($memcache->add('key', 'newvalue'));
+    }
+
+    public function testIncrementDecrement()
+    {
+        $memcache = new MemcacheCache(array());
+
+        $memcache->add('one', 1);
+        $memcache->add('two', 2);
+        $memcache->add('three', 'three');
+
+        $this->assertTrue($memcache->increment('one'));
+        $this->assertEquals(2, $memcache->get('one'));
+        $this->assertTrue($memcache->decrement('two'));
+        $this->assertEquals(1, $memcache->get('two'));
+
+        $this->assertFalse($memcache->decrement('three'));
+    }
+
+    public function testDelete()
+    {
+        $memcache = new MemcacheCache(array());
+
+        $memcache->add('one', 1);
+        $memcache->add('two', 2);
+
+        $memcache->del('one');
+        $this->assertEquals(2, $memcache->get('two'));
+        $this->assertFalse($memcache->get('one'));
+    }
+
+    public function testFlush()
+    {
+        $memcache = new MemcacheCache(array());
+
+        $memcache->add('one', 1);
+        $memcache->add('two', 2);
+        $memcache->add('three', 'three');
+
+        $this->assertEquals('three', 'three');
+
+        $memcache->flush();
+
+        $this->assertFalse($memcache->get('three'));
+        $this->assertFalse($memcache->get('one'));
+    }
+
+    public function testSetReplace()
+    {
+        $memcache = new MemcacheCache(array());
+
+        $memcache->add('one', 1);
+        $memcache->add('two', 2);
+        $memcache->add('three', 'three');
+        $memcache->set('one', 30);
+        $memcache->replace('three', 3);
+
+        $this->assertEquals(30, $memcache->get('one'));
+        $this->assertEquals(3, $memcache->get('three'));
+    }
+
+    protected function newCallback($className)
+    {
+        switch ($className) {
+            case 'Memcache':
+                return 'TestCache';
+            default:
+                return $className;
+        }
+    }
+
+    public function tearDown()
+    {
+        unset_new_overload();
+    }
+
+}
+
+class TestCache
+{
+
+    private $vals = array();
+
+    public function addServer($host, $port)
+    {
+        return true;
+    }
+
+    public function add($key, $value, $some, $expire = 0)
+    {
+        if(!isset($this->vals[$key])) {
+            $this->vals[$key] = $value;
+            return true;
+        }
+        return false;
+    }
+
+    public function decrement($key, $decrement = 1)
+    {
+        if (isset($this->vals[$key]) && is_int($this->vals[$key])) {
+            $this->vals[$key]--;
+            return true;
+        }
+        return false;
+    }
+
+    public function delete($key)
+    {
+        if (isset($this->vals[$key])) {
+            unset($this->vals[$key]);
+        }
+        return true;
+    }
+
+    public function flush()
+    {
+        $this->vals = array();
+    }
+
+    public function get($key)
+    {
+        if (isset($this->vals[$key])) {
+            return $this->vals[$key];
+        }
+        return false;
+    }
+
+    public function increment($key, $increment = 1)
+    {
+        if (isset($this->vals[$key]) && is_int($this->vals[$key])) {
+            $this->vals[$key]++;
+            return true;
+        }
+        return false;
+    }
+
+    public function replace($key, $value, $any = null, $expire = 0)
+    {
+        if (isset($this->vals[$key])) {
+            $this->vals[$key] = $value;
+            return true;
+        }
+        return false;
+    }
+
+    public function set($key, $value, $any = null, $expire = 0)
+    {
+        $this->vals[$key] = $value;
+        return true;
+    }
+
+}
\ No newline at end of file