diff --git a/src/Symfony/Component/ClassLoader/ApcUniversalClassLoader.php b/src/Symfony/Component/ClassLoader/ApcUniversalClassLoader.php
index dceb8a2294..ba7bbd4612 100644
--- a/src/Symfony/Component/ClassLoader/ApcUniversalClassLoader.php
+++ b/src/Symfony/Component/ClassLoader/ApcUniversalClassLoader.php
@@ -11,8 +11,6 @@
 
 namespace Symfony\Component\ClassLoader;
 
-require_once __DIR__.'/UniversalClassLoader.php';
-
 /**
  * Class loader utilizing APC to remember where files are.
  *
diff --git a/tests/Symfony/Tests/Component/ClassLoader/ApcUniversalClassLoaderTest.php b/tests/Symfony/Tests/Component/ClassLoader/ApcUniversalClassLoaderTest.php
new file mode 100644
index 0000000000..59ab7417ad
--- /dev/null
+++ b/tests/Symfony/Tests/Component/ClassLoader/ApcUniversalClassLoaderTest.php
@@ -0,0 +1,194 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Tests\Component\ClassLoader;
+
+use Symfony\Component\ClassLoader\ApcUniversalClassLoader;
+
+class ApcUniversalClassLoaderTest extends \PHPUnit_Framework_TestCase
+{
+
+    protected function skipIfAPCExtensionIsNotLoadedOrEnabled()
+    {
+        if (!extension_loaded('apc')) {
+            $this->markTestSkipped('The apc extension is available.');
+        }
+
+        if (!(ini_get('apc.enabled') && ini_get('apc.enable_cli'))) {
+            $this->markTestSkipped('The apc extension is available, but not enabled.');
+        }
+    }
+
+    public function testConstructor()
+    {
+		$this->skipIfAPCExtensionIsNotLoadedOrEnabled();
+
+        $loader = new ApcUniversalClassLoader('test.prefix.');
+        $loader->registerNamespace('Namespaced', __DIR__.DIRECTORY_SEPARATOR.'Fixtures');
+
+        $this->assertEquals($loader->findFile('\Namespaced\Bar'), apc_fetch('test.prefix.\Namespaced\Bar'), '__construct() takes a prefix as its first argument');
+    }
+
+    /**
+     * @dataProvider getLoadClassTests
+     */
+    public function testLoadClass($className, $testClassName, $message)
+    {
+		$this->skipIfAPCExtensionIsNotLoadedOrEnabled();
+
+        $loader = new ApcUniversalClassLoader('test.prefix.');
+        $loader->registerNamespace('Namespaced', __DIR__.DIRECTORY_SEPARATOR.'Fixtures');
+        $loader->registerPrefix('Pearlike_', __DIR__.DIRECTORY_SEPARATOR.'Fixtures');
+        $loader->loadClass($testClassName);
+        $this->assertTrue(class_exists($className), $message);
+    }
+
+    public function getLoadClassTests()
+    {
+        return array(
+            array('\\Namespaced\\Foo', 'Namespaced\\Foo',   '->loadClass() loads Namespaced\Foo class'),
+            array('\\Pearlike_Foo',    'Pearlike_Foo',      '->loadClass() loads Pearlike_Foo class'),
+            array('\\Namespaced\\Bar', '\\Namespaced\\Bar', '->loadClass() loads Namespaced\Bar class with a leading slash'),
+            array('\\Pearlike_Bar',    '\\Pearlike_Bar',    '->loadClass() loads Pearlike_Bar class with a leading slash'),
+        );
+    }
+
+    /**
+     * @dataProvider getLoadClassFromFallbackTests
+     */
+    public function testLoadClassFromFallback($className, $testClassName, $message)
+    {
+		$this->skipIfAPCExtensionIsNotLoadedOrEnabled();
+
+        $loader = new ApcUniversalClassLoader('test.prefix.');
+        $loader->registerNamespace('Namespaced', __DIR__.DIRECTORY_SEPARATOR.'Fixtures');
+        $loader->registerPrefix('Pearlike_', __DIR__.DIRECTORY_SEPARATOR.'Fixtures');
+        $loader->registerNamespaceFallback(__DIR__.DIRECTORY_SEPARATOR.'Fixtures/fallback');
+        $loader->registerPrefixFallback(__DIR__.DIRECTORY_SEPARATOR.'Fixtures/fallback');
+        $loader->loadClass($testClassName);
+        $this->assertTrue(class_exists($className), $message);
+    }
+
+    public function getLoadClassFromFallbackTests()
+    {
+        return array(
+            array('\\Namespaced\\Baz',    'Namespaced\\Baz',    '->loadClass() loads Namespaced\Baz class'),
+            array('\\Pearlike_Baz',       'Pearlike_Baz',       '->loadClass() loads Pearlike_Baz class'),
+            array('\\Namespaced\\FooBar', 'Namespaced\\FooBar', '->loadClass() loads Namespaced\Baz class from fallback dir'),
+            array('\\Pearlike_FooBar',    'Pearlike_FooBar',    '->loadClass() loads Pearlike_Baz class from fallback dir'),
+        );
+    }
+
+    /**
+     * @dataProvider getLoadClassNamespaceCollisionTests
+     */
+    public function testLoadClassNamespaceCollision($namespaces, $className, $message)
+    {
+		$this->skipIfAPCExtensionIsNotLoadedOrEnabled();
+
+        $loader = new ApcUniversalClassLoader('test.prefix.');
+        $loader->registerNamespaces($namespaces);
+
+        $loader->loadClass($className);
+        $this->assertTrue(class_exists($className), $message);
+    }
+
+    public function getLoadClassNamespaceCollisionTests()
+    {
+        return array(
+            array(
+                array(
+                    'NamespaceCollision\\A' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/alpha',
+                    'NamespaceCollision\\A\\B' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/beta',
+                ),
+                'NamespaceCollision\A\Foo',
+                '->loadClass() loads NamespaceCollision\A\Foo from alpha.',
+            ),
+            array(
+                array(
+                    'NamespaceCollision\\A\\B' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/beta',
+                    'NamespaceCollision\\A' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/alpha',
+                ),
+                'NamespaceCollision\A\Bar',
+                '->loadClass() loads NamespaceCollision\A\Bar from alpha.',
+            ),
+            array(
+                array(
+                    'NamespaceCollision\\A' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/alpha',
+                    'NamespaceCollision\\A\\B' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/beta',
+                ),
+                'NamespaceCollision\A\B\Foo',
+                '->loadClass() loads NamespaceCollision\A\B\Foo from beta.',
+            ),
+            array(
+                array(
+                    'NamespaceCollision\\A\\B' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/beta',
+                    'NamespaceCollision\\A' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/alpha',
+                ),
+                'NamespaceCollision\A\B\Bar',
+                '->loadClass() loads NamespaceCollision\A\B\Bar from beta.',
+            ),
+        );
+    }
+
+    /**
+     * @dataProvider getLoadClassPrefixCollisionTests
+     */
+    public function testLoadClassPrefixCollision($prefixes, $className, $message)
+    {
+		$this->skipIfAPCExtensionIsNotLoadedOrEnabled();
+
+        $loader = new ApcUniversalClassLoader('test.prefix.');
+        $loader->registerPrefixes($prefixes);
+
+        $loader->loadClass($className);
+        $this->assertTrue(class_exists($className), $message);
+    }
+
+    public function getLoadClassPrefixCollisionTests()
+    {
+        return array(
+            array(
+                array(
+                    'PrefixCollision_A_' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/alpha',
+                    'PrefixCollision_A_B_' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/beta',
+                ),
+                'PrefixCollision_A_Foo',
+                '->loadClass() loads PrefixCollision_A_Foo from alpha.',
+            ),
+            array(
+                array(
+                    'PrefixCollision_A_B_' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/beta',
+                    'PrefixCollision_A_' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/alpha',
+                ),
+                'PrefixCollision_A_Bar',
+                '->loadClass() loads PrefixCollision_A_Bar from alpha.',
+            ),
+            array(
+                array(
+                    'PrefixCollision_A_' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/alpha',
+                    'PrefixCollision_A_B_' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/beta',
+                ),
+                'PrefixCollision_A_B_Foo',
+                '->loadClass() loads PrefixCollision_A_B_Foo from beta.',
+            ),
+            array(
+                array(
+                    'PrefixCollision_A_B_' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/beta',
+                    'PrefixCollision_A_' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/alpha',
+                ),
+                'PrefixCollision_A_B_Bar',
+                '->loadClass() loads PrefixCollision_A_B_Bar from beta.',
+            ),
+        );
+    }
+
+}