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diff --git a/vendor/symfony/class-loader/Tests/ClassCollectionLoaderTest.php b/vendor/symfony/class-loader/Tests/ClassCollectionLoaderTest.php
new file mode 100644
index 000000000..4adff9fbf
--- /dev/null
+++ b/vendor/symfony/class-loader/Tests/ClassCollectionLoaderTest.php
@@ -0,0 +1,289 @@
+<?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 PHPUnit\Framework\TestCase;
+use Symfony\Component\ClassLoader\ClassCollectionLoader;
+
+require_once __DIR__.'/Fixtures/ClassesWithParents/GInterface.php';
+require_once __DIR__.'/Fixtures/ClassesWithParents/CInterface.php';
+require_once __DIR__.'/Fixtures/ClassesWithParents/B.php';
+require_once __DIR__.'/Fixtures/ClassesWithParents/A.php';
+
+class ClassCollectionLoaderTest extends TestCase
+{
+    /**
+     * @requires PHP 5.4
+     */
+    public function testTraitDependencies()
+    {
+        require_once __DIR__.'/Fixtures/deps/traits.php';
+
+        $r = new \ReflectionClass('Symfony\Component\ClassLoader\ClassCollectionLoader');
+        $m = $r->getMethod('getOrderedClasses');
+        $m->setAccessible(true);
+
+        $ordered = $m->invoke(null, array('CTFoo'));
+
+        $this->assertEquals(
+            array('TD', 'TC', 'TB', 'TA', 'TZ', 'CTFoo'),
+            array_map(function ($class) { return $class->getName(); }, $ordered)
+        );
+
+        $ordered = $m->invoke(null, array('CTBar'));
+
+        $this->assertEquals(
+            array('TD', 'TZ', 'TC', 'TB', 'TA', 'CTBar'),
+            array_map(function ($class) { return $class->getName(); }, $ordered)
+        );
+    }
+
+    /**
+     * @dataProvider getDifferentOrders
+     */
+    public function testClassReordering(array $classes)
+    {
+        $expected = array(
+            'ClassesWithParents\\GInterface',
+            'ClassesWithParents\\CInterface',
+            'ClassesWithParents\\B',
+            'ClassesWithParents\\A',
+        );
+
+        $r = new \ReflectionClass('Symfony\Component\ClassLoader\ClassCollectionLoader');
+        $m = $r->getMethod('getOrderedClasses');
+        $m->setAccessible(true);
+
+        $ordered = $m->invoke(null, $classes);
+
+        $this->assertEquals($expected, array_map(function ($class) { return $class->getName(); }, $ordered));
+    }
+
+    public function getDifferentOrders()
+    {
+        return array(
+            array(array(
+                'ClassesWithParents\\A',
+                'ClassesWithParents\\CInterface',
+                'ClassesWithParents\\GInterface',
+                'ClassesWithParents\\B',
+            )),
+            array(array(
+                'ClassesWithParents\\B',
+                'ClassesWithParents\\A',
+                'ClassesWithParents\\CInterface',
+            )),
+            array(array(
+                'ClassesWithParents\\CInterface',
+                'ClassesWithParents\\B',
+                'ClassesWithParents\\A',
+            )),
+            array(array(
+                'ClassesWithParents\\A',
+            )),
+        );
+    }
+
+    /**
+     * @dataProvider getDifferentOrdersForTraits
+     * @requires PHP 5.4
+     */
+    public function testClassWithTraitsReordering(array $classes)
+    {
+        require_once __DIR__.'/Fixtures/ClassesWithParents/ATrait.php';
+        require_once __DIR__.'/Fixtures/ClassesWithParents/BTrait.php';
+        require_once __DIR__.'/Fixtures/ClassesWithParents/CTrait.php';
+        require_once __DIR__.'/Fixtures/ClassesWithParents/D.php';
+        require_once __DIR__.'/Fixtures/ClassesWithParents/E.php';
+
+        $expected = array(
+            'ClassesWithParents\\GInterface',
+            'ClassesWithParents\\CInterface',
+            'ClassesWithParents\\ATrait',
+            'ClassesWithParents\\BTrait',
+            'ClassesWithParents\\CTrait',
+            'ClassesWithParents\\B',
+            'ClassesWithParents\\A',
+            'ClassesWithParents\\D',
+            'ClassesWithParents\\E',
+        );
+
+        $r = new \ReflectionClass('Symfony\Component\ClassLoader\ClassCollectionLoader');
+        $m = $r->getMethod('getOrderedClasses');
+        $m->setAccessible(true);
+
+        $ordered = $m->invoke(null, $classes);
+
+        $this->assertEquals($expected, array_map(function ($class) { return $class->getName(); }, $ordered));
+    }
+
+    public function getDifferentOrdersForTraits()
+    {
+        return array(
+            array(array(
+                'ClassesWithParents\\E',
+                'ClassesWithParents\\ATrait',
+            )),
+            array(array(
+                'ClassesWithParents\\E',
+            )),
+        );
+    }
+
+    /**
+     * @requires PHP 5.4
+     */
+    public function testFixClassWithTraitsOrdering()
+    {
+        require_once __DIR__.'/Fixtures/ClassesWithParents/CTrait.php';
+        require_once __DIR__.'/Fixtures/ClassesWithParents/F.php';
+        require_once __DIR__.'/Fixtures/ClassesWithParents/G.php';
+
+        $classes = array(
+            'ClassesWithParents\\F',
+            'ClassesWithParents\\G',
+        );
+
+        $expected = array(
+            'ClassesWithParents\\CTrait',
+            'ClassesWithParents\\F',
+            'ClassesWithParents\\G',
+        );
+
+        $r = new \ReflectionClass('Symfony\Component\ClassLoader\ClassCollectionLoader');
+        $m = $r->getMethod('getOrderedClasses');
+        $m->setAccessible(true);
+
+        $ordered = $m->invoke(null, $classes);
+
+        $this->assertEquals($expected, array_map(function ($class) { return $class->getName(); }, $ordered));
+    }
+
+    /**
+     * @dataProvider getFixNamespaceDeclarationsData
+     */
+    public function testFixNamespaceDeclarations($source, $expected)
+    {
+        $this->assertEquals('<?php '.$expected, ClassCollectionLoader::fixNamespaceDeclarations('<?php '.$source));
+    }
+
+    public function getFixNamespaceDeclarationsData()
+    {
+        return array(
+            array("namespace;\nclass Foo {}\n", "namespace\n{\nclass Foo {}\n}"),
+            array("namespace Foo;\nclass Foo {}\n", "namespace Foo\n{\nclass Foo {}\n}"),
+            array("namespace   Bar ;\nclass Foo {}\n", "namespace Bar\n{\nclass Foo {}\n}"),
+            array("namespace Foo\Bar;\nclass Foo {}\n", "namespace Foo\Bar\n{\nclass Foo {}\n}"),
+            array("namespace Foo\Bar\Bar\n{\nclass Foo {}\n}\n", "namespace Foo\Bar\Bar\n{\nclass Foo {}\n}"),
+            array("namespace\n{\nclass Foo {}\n}\n", "namespace\n{\nclass Foo {}\n}"),
+        );
+    }
+
+    /**
+     * @dataProvider getFixNamespaceDeclarationsDataWithoutTokenizer
+     */
+    public function testFixNamespaceDeclarationsWithoutTokenizer($source, $expected)
+    {
+        ClassCollectionLoader::enableTokenizer(false);
+        $this->assertEquals('<?php '.$expected, ClassCollectionLoader::fixNamespaceDeclarations('<?php '.$source));
+        ClassCollectionLoader::enableTokenizer(true);
+    }
+
+    public function getFixNamespaceDeclarationsDataWithoutTokenizer()
+    {
+        return array(
+            array("namespace;\nclass Foo {}\n", "namespace\n{\nclass Foo {}\n}\n"),
+            array("namespace Foo;\nclass Foo {}\n", "namespace Foo\n{\nclass Foo {}\n}\n"),
+            array("namespace   Bar ;\nclass Foo {}\n", "namespace   Bar\n{\nclass Foo {}\n}\n"),
+            array("namespace Foo\Bar;\nclass Foo {}\n", "namespace Foo\Bar\n{\nclass Foo {}\n}\n"),
+            array("namespace Foo\Bar\Bar\n{\nclass Foo {}\n}\n", "namespace Foo\Bar\Bar\n{\nclass Foo {}\n}\n"),
+            array("\nnamespace\n{\nclass Foo {}\n\$namespace=123;}\n", "\nnamespace\n{\nclass Foo {}\n\$namespace=123;}\n"),
+        );
+    }
+
+    /**
+     * @expectedException \InvalidArgumentException
+     */
+    public function testUnableToLoadClassException()
+    {
+        if (is_file($file = sys_get_temp_dir().'/foo.php')) {
+            unlink($file);
+        }
+
+        ClassCollectionLoader::load(array('SomeNotExistingClass'), sys_get_temp_dir(), 'foo', false);
+    }
+
+    public function testCommentStripping()
+    {
+        if (is_file($file = __DIR__.'/bar.php')) {
+            unlink($file);
+        }
+        spl_autoload_register($r = function ($class) {
+            if (0 === strpos($class, 'Namespaced') || 0 === strpos($class, 'Pearlike_')) {
+                @require_once __DIR__.'/Fixtures/'.str_replace(array('\\', '_'), '/', $class).'.php';
+            }
+        });
+
+        $strictTypes = defined('HHVM_VERSION') ? '' : "\nnamespace {require __DIR__.'/Fixtures/Namespaced/WithStrictTypes.php';}";
+
+        ClassCollectionLoader::load(
+            array('Namespaced\\WithComments', 'Pearlike_WithComments', 'Namespaced\\WithDirMagic', 'Namespaced\\WithFileMagic', 'Namespaced\\WithHaltCompiler', $strictTypes ? 'Namespaced\\WithStrictTypes' : 'Namespaced\\WithComments'),
+            __DIR__,
+            'bar',
+            false
+        );
+
+        spl_autoload_unregister($r);
+
+        $this->assertEquals(<<<'EOF'
+namespace Namespaced
+{
+class WithComments
+{
+public static $loaded = true;
+}
+$string ='string should not be   modified {$string}';
+$heredoc = (<<<HD
+
+
+Heredoc should not be   modified {$string}
+
+
+HD
+);
+$nowdoc =<<<'ND'
+
+
+Nowdoc should not be   modified {$string}
+
+
+ND
+;
+}
+namespace
+{
+class Pearlike_WithComments
+{
+public static $loaded = true;
+}
+}
+namespace {require __DIR__.'/Fixtures/Namespaced/WithDirMagic.php';}
+namespace {require __DIR__.'/Fixtures/Namespaced/WithFileMagic.php';}
+namespace {require __DIR__.'/Fixtures/Namespaced/WithHaltCompiler.php';}
+EOF
+            .$strictTypes,
+            str_replace(array("<?php \n", '\\\\'), array('', '/'), file_get_contents($file))
+        );
+
+        unlink($file);
+    }
+}