Merge branch '2.4' into 2.5

* 2.4:
  added missing test
  fixed CS
  [HttpFoundation] Remove content-related headers if content is empty
  bumped Symfony version to 2.4.8
  removed defaults from PHPUnit configuration

Conflicts:
	src/Symfony/Component/HttpKernel/Kernel.php

Psr4ClassLoader.php

@@ -0,0 +1,94 @@
+<?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\Component\ClassLoader;
+
+/**
+ * A PSR-4 compatible class loader.
+ *
+ * See http://www.php-fig.org/psr/psr-4/
+ *
+ * @author Alexander M. Turek <me@derrabus.de>
+ */
+class Psr4ClassLoader
+{
+    /**
+     * @var array
+     */
+    private $prefixes = array();
+
+    /**
+     * @param string $prefix
+     * @param string $baseDir
+     */
+    public function addPrefix($prefix, $baseDir)
+    {
+        $prefix = trim($prefix, '\\').'\\';
+        $baseDir = rtrim($baseDir, DIRECTORY_SEPARATOR) . DIRECTORY_SEPARATOR;
+        $this->prefixes[] = array($prefix, $baseDir);
+    }
+
+    /**
+     * @param string $class
+     *
+     * @return string|null
+     */
+    public function findFile($class)
+    {
+        $class = ltrim($class, '\\');
+
+        foreach ($this->prefixes as $current) {
+            list($currentPrefix, $currentBaseDir) = $current;
+            if (0 === strpos($class, $currentPrefix)) {
+                $classWithoutPrefix = substr($class, strlen($currentPrefix));
+                $file = $currentBaseDir . str_replace('\\', DIRECTORY_SEPARATOR, $classWithoutPrefix) . '.php';
+                if (file_exists($file)) {
+                    return $file;
+                }
+            }
+        }
+    }
+
+    /**
+     * @param string $class
+     *
+     * @return bool
+     */
+    public function loadClass($class)
+    {
+        $file = $this->findFile($class);
+        if (null !== $file) {
+            require $file;
+
+            return true;
+        }
+
+        return false;
+    }
+
+    /**
+     * Registers this instance as an autoloader.
+     *
+     * @param bool    $prepend
+     */
+    public function register($prepend = false)
+    {
+        spl_autoload_register(array($this, 'loadClass'), true, $prepend);
+    }
+
+    /**
+     * Removes this instance from the registered autoloaders.
+     */
+    public function unregister()
+    {
+        spl_autoload_unregister(array($this, 'loadClass'));
+    }
+}

Tests/ApcUniversalClassLoaderTest.php

@@ -58,10 +58,8 @@ class ApcUniversalClassLoaderTest extends \PHPUnit_Framework_TestCase
    public function getLoadClassTests()
    {
        return array(
-           array('\\Apc\\Namespaced\\Foo', '\\Apc\\Namespaced\\Foo',   '->loadClass() loads Apc\Namespaced\Foo class'),
+           array('\\Apc\\Namespaced\\Foo', 'Apc\\Namespaced\\Foo',   '->loadClass() loads Apc\Namespaced\Foo class'),
            array('Apc_Pearlike_Foo',    'Apc_Pearlike_Foo',      '->loadClass() loads Apc_Pearlike_Foo class'),
-           array('\\Apc\\Namespaced\\Bar', '\\Apc\\Namespaced\\Bar', '->loadClass() loads Apc\Namespaced\Bar class with a leading slash'),
-           array('Apc_Pearlike_Bar',    '\\Apc_Pearlike_Bar',    '->loadClass() loads Apc_Pearlike_Bar class with a leading slash'),
        );
    }
 
@@ -82,9 +80,9 @@ class ApcUniversalClassLoaderTest extends \PHPUnit_Framework_TestCase
    public function getLoadClassFromFallbackTests()
    {
        return array(
-           array('\\Apc\\Namespaced\\Baz',    '\\Apc\\Namespaced\\Baz',    '->loadClass() loads Apc\Namespaced\Baz class'),
+           array('\\Apc\\Namespaced\\Baz',    'Apc\\Namespaced\\Baz',    '->loadClass() loads Apc\Namespaced\Baz class'),
            array('Apc_Pearlike_Baz',       'Apc_Pearlike_Baz',       '->loadClass() loads Apc_Pearlike_Baz class'),
-           array('\\Apc\\Namespaced\\FooBar', '\\Apc\\Namespaced\\FooBar', '->loadClass() loads Apc\Namespaced\Baz class from fallback dir'),
+           array('\\Apc\\Namespaced\\FooBar', 'Apc\\Namespaced\\FooBar', '->loadClass() loads Apc\Namespaced\Baz class from fallback dir'),
            array('Apc_Pearlike_FooBar',    'Apc_Pearlike_FooBar',    '->loadClass() loads Apc_Pearlike_Baz class from fallback dir'),
        );
    }
@@ -110,7 +108,7 @@ class ApcUniversalClassLoaderTest extends \PHPUnit_Framework_TestCase
                    'Apc\\NamespaceCollision\\A' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/Apc/alpha',
                    'Apc\\NamespaceCollision\\A\\B' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/Apc/beta',
                ),
-               '\Apc\NamespaceCollision\A\Foo',
+               'Apc\NamespaceCollision\A\Foo',
                '->loadClass() loads NamespaceCollision\A\Foo from alpha.',
            ),
            array(
@@ -118,7 +116,7 @@ class ApcUniversalClassLoaderTest extends \PHPUnit_Framework_TestCase
                    'Apc\\NamespaceCollision\\A\\B' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/Apc/beta',
                    'Apc\\NamespaceCollision\\A' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/Apc/alpha',
                ),
-               '\Apc\NamespaceCollision\A\Bar',
+               'Apc\NamespaceCollision\A\Bar',
                '->loadClass() loads NamespaceCollision\A\Bar from alpha.',
            ),
            array(
@@ -126,7 +124,7 @@ class ApcUniversalClassLoaderTest extends \PHPUnit_Framework_TestCase
                    'Apc\\NamespaceCollision\\A' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/Apc/alpha',
                    'Apc\\NamespaceCollision\\A\\B' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/Apc/beta',
                ),
-               '\Apc\NamespaceCollision\A\B\Foo',
+               'Apc\NamespaceCollision\A\B\Foo',
                '->loadClass() loads NamespaceCollision\A\B\Foo from beta.',
            ),
            array(
@@ -134,7 +132,7 @@ class ApcUniversalClassLoaderTest extends \PHPUnit_Framework_TestCase
                    'Apc\\NamespaceCollision\\A\\B' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/Apc/beta',
                    'Apc\\NamespaceCollision\\A' => __DIR__.DIRECTORY_SEPARATOR.'Fixtures/Apc/alpha',
                ),
-               '\Apc\NamespaceCollision\A\B\Bar',
+               'Apc\NamespaceCollision\A\B\Bar',
                '->loadClass() loads NamespaceCollision\A\B\Bar from beta.',
            ),
        );

Tests/Fixtures/psr-4/Class_With_Underscores.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Acme\DemoLib;
+
+class Class_With_Underscores
+{
+}

Tests/Fixtures/psr-4/Foo.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Acme\DemoLib;
+
+class Foo
+{
+}

Tests/Fixtures/psr-4/Lets/Go/Deeper/Class_With_Underscores.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Acme\DemoLib\Lets\Go\Deeper;
+
+class Class_With_Underscores
+{
+}

Tests/Fixtures/psr-4/Lets/Go/Deeper/Foo.php

@@ -0,0 +1,7 @@
+<?php
+
+namespace Acme\DemoLib\Lets\Go\Deeper;
+
+class Foo
+{
+}

Tests/Psr4ClassLoaderTest.php

@@ -0,0 +1,71 @@
+<?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\Component\ClassLoader\Tests;
+
+use Symfony\Component\ClassLoader\Psr4ClassLoader;
+
+class Psr4ClassLoaderTest extends \PHPUnit_Framework_TestCase
+{
+    /**
+     * @param string $className
+     * @dataProvider getLoadClassTests
+     */
+    public function testLoadClass($className)
+    {
+        $loader = new Psr4ClassLoader();
+        $loader->addPrefix(
+            'Acme\\DemoLib',
+            __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures' . DIRECTORY_SEPARATOR . 'psr-4'
+        );
+        $loader->loadClass($className);
+        $this->assertTrue(class_exists($className), sprintf('loadClass() should load %s', $className));
+    }
+
+    /**
+     * @return array
+     */
+    public function getLoadClassTests()
+    {
+        return array(
+            array('Acme\\DemoLib\\Foo'),
+            array('Acme\\DemoLib\\Class_With_Underscores'),
+            array('Acme\\DemoLib\\Lets\\Go\\Deeper\\Foo'),
+            array('Acme\\DemoLib\\Lets\\Go\\Deeper\\Class_With_Underscores')
+        );
+    }
+
+    /**
+     * @param string $className
+     * @dataProvider getLoadNonexistentClassTests
+     */
+    public function testLoadNonexistentClass($className)
+    {
+        $loader = new Psr4ClassLoader();
+        $loader->addPrefix(
+            'Acme\\DemoLib',
+            __DIR__ . DIRECTORY_SEPARATOR . 'Fixtures' . DIRECTORY_SEPARATOR . 'psr-4'
+        );
+        $loader->loadClass($className);
+        $this->assertFalse(class_exists($className), sprintf('loadClass() should not load %s', $className));
+    }
+
+    /**
+     * @return array
+     */
+    public function getLoadNonexistentClassTests()
+    {
+        return array(
+            array('Acme\\DemoLib\\I_Do_Not_Exist'),
+            array('UnknownVendor\\SomeLib\\I_Do_Not_Exist')
+        );
+    }
+}

composer.json

@@ -28,7 +28,7 @@
     "target-dir": "Symfony/Component/ClassLoader",
     "extra": {
         "branch-alias": {
-            "dev-master": "2.4-dev"
+            "dev-master": "2.5-dev"
         }
     }
 }