Merge branch '2.7' into 2.8

* 2.7:
  [HttpKernel] fixed internal subrequests having an if-modified-since-header
  [Validator] Added additional MasterCard range to the CardSchemeValidator
  Make the exception message more clear.
  [Form] fixed bug - name in ButtonBuilder
  [ClassLoader] Fix declared classes being computed when not needed

src/Symfony/Component/ClassLoader/ClassCollectionLoader.php

@@ -43,12 +43,12 @@ class ClassCollectionLoader
 
         self::$loaded[$name] = true;
 
-        $declared = array_merge(get_declared_classes(), get_declared_interfaces());
-        if (function_exists('get_declared_traits')) {
-            $declared = array_merge($declared, get_declared_traits());
-        }
-
         if ($adaptive) {
+            $declared = array_merge(get_declared_classes(), get_declared_interfaces());
+            if (function_exists('get_declared_traits')) {
+                $declared = array_merge($declared, get_declared_traits());
+            }
+
             // don't include already declared classes
             $classes = array_diff($classes, $declared);
 
@@ -87,11 +87,17 @@ class ClassCollectionLoader
             }
         }
 
-        if (!$reload && is_file($cache)) {
+        if (!$reload && file_exists($cache)) {
             require_once $cache;
 
             return;
         }
+        if (!$adaptive) {
+            $declared = array_merge(get_declared_classes(), get_declared_interfaces());
+            if (function_exists('get_declared_traits')) {
+                $declared = array_merge($declared, get_declared_traits());
+            }
+        }
 
         $files = array();
         $content = '';

src/Symfony/Component/Form/ButtonBuilder.php

@@ -62,11 +62,12 @@ class ButtonBuilder implements \IteratorAggregate, FormBuilderInterface
      */
     public function __construct($name, array $options = array())
     {
-        if (empty($name) && 0 != $name) {
+        $name = (string) $name;
+        if ('' === $name) {
             throw new InvalidArgumentException('Buttons cannot have empty names.');
         }
 
-        $this->name = (string) $name;
+        $this->name = $name;
         $this->options = $options;
     }
 

src/Symfony/Component/Form/Tests/ButtonBuilderTest.php

@@ -0,0 +1,61 @@
+<?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\Form\Tests;
+
+use Symfony\Component\Form\ButtonBuilder;
+
+/**
+ * @author Alexander Cheprasov <cheprasov.84@ya.ru>
+ */
+class ButtonBuilderTest extends \PHPUnit_Framework_TestCase
+{
+    public function getValidNames()
+    {
+        return array(
+            array('reset'),
+            array('submit'),
+            array('foo'),
+            array('0'),
+            array(0),
+            array('button[]'),
+        );
+    }
+
+    /**
+     * @dataProvider getValidNames
+     */
+    public function testValidNames($name)
+    {
+        $this->assertInstanceOf('\Symfony\Component\Form\ButtonBuilder', new ButtonBuilder($name));
+    }
+
+    public function getInvalidNames()
+    {
+        return array(
+            array(''),
+            array(false),
+            array(null),
+        );
+    }
+
+    /**
+     * @dataProvider getInvalidNames
+     */
+    public function testInvalidNames($name)
+    {
+        $this->setExpectedException(
+            '\Symfony\Component\Form\Exception\InvalidArgumentException',
+            'Buttons cannot have empty names.'
+        );
+        new ButtonBuilder($name);
+    }
+}

src/Symfony/Component/HttpKernel/Fragment/InlineFragmentRenderer.php

@@ -129,6 +129,8 @@ class InlineFragmentRenderer extends RoutableFragmentRenderer
         }
 
         $server['REMOTE_ADDR'] = '127.0.0.1';
+        unset($server['HTTP_IF_MODIFIED_SINCE']);
+        unset($server['HTTP_IF_NONE_MATCH']);
 
         $subRequest = Request::create($uri, 'get', array(), $cookies, array(), $server);
         if ($request->headers->has('Surrogate-Capability')) {

src/Symfony/Component/HttpKernel/Tests/Fragment/InlineFragmentRendererTest.php

@@ -197,6 +197,19 @@ class InlineFragmentRendererTest extends \PHPUnit_Framework_TestCase
 
         Request::setTrustedHeaderName(Request::HEADER_CLIENT_IP, $trustedHeaderName);
     }
+
+    public function testHeadersPossiblyResultingIn304AreNotAssignedToSubrequest()
+    {
+        $expectedSubRequest = Request::create('/');
+        if (Request::getTrustedHeaderName(Request::HEADER_CLIENT_IP)) {
+            $expectedSubRequest->headers->set('x-forwarded-for', array('127.0.0.1'));
+            $expectedSubRequest->server->set('HTTP_X_FORWARDED_FOR', '127.0.0.1');
+        }
+
+        $strategy = new InlineFragmentRenderer($this->getKernelExpectingRequest($expectedSubRequest));
+        $request = Request::create('/', 'GET', array(), array(), array(), array('HTTP_IF_MODIFIED_SINCE' => 'Fri, 01 Jan 2016 00:00:00 GMT', 'HTTP_IF_NONE_MATCH' => '*'));
+        $strategy->render('/', $request);
+    }
 }
 
 class Bar

src/Symfony/Component/Validator/Constraints/CardSchemeValidator.php

@@ -74,8 +74,10 @@ class CardSchemeValidator extends ConstraintValidator
             '/^6[0-9]{11,18}$/',
         ),
         // All MasterCard numbers start with the numbers 51 through 55. All have 16 digits.
+        // October 2016 MasterCard numbers can also start with 222100 through 272099.
         'MASTERCARD' => array(
             '/^5[1-5][0-9]{14}$/',
+            '/^2(22[1-9][0-9]{12}|2[3-9][0-9]{13}|[3-6][0-9]{14}|7[0-1][0-9]{13}|720[0-9]{12})$/',
         ),
         // All Visa card numbers start with a 4. New cards have 16 digits. Old cards have 13.
         'VISA' => array(

src/Symfony/Component/Validator/Mapping/PropertyMetadata.php

@@ -39,7 +39,7 @@ class PropertyMetadata extends MemberMetadata
     public function __construct($class, $name)
     {
         if (!property_exists($class, $name)) {
-            throw new ValidatorException(sprintf('Property %s does not exist in class %s', $name, $class));
+            throw new ValidatorException(sprintf('Property "%s" does not exist in class "%s"', $name, $class));
         }
 
         parent::__construct($class, $name, $name);

src/Symfony/Component/Validator/Tests/Constraints/CardSchemeValidatorTest.php

@@ -102,6 +102,12 @@ class CardSchemeValidatorTest extends AbstractConstraintValidatorTest
             array('MAESTRO', '6594371785970435599'),
             array('MASTERCARD', '5555555555554444'),
             array('MASTERCARD', '5105105105105100'),
+            array('MASTERCARD', '2221005555554444'),
+            array('MASTERCARD', '2230000000000000'),
+            array('MASTERCARD', '2300000000000000'),
+            array('MASTERCARD', '2699999999999999'),
+            array('MASTERCARD', '2709999999999999'),
+            array('MASTERCARD', '2720995105105100'),
             array('VISA', '4111111111111111'),
             array('VISA', '4012888888881881'),
             array('VISA', '4222222222222'),
@@ -129,6 +135,8 @@ class CardSchemeValidatorTest extends AbstractConstraintValidatorTest
             array('AMEX', '000000000000', CardScheme::INVALID_FORMAT_ERROR), // a lone number
             array('DINERS', '3056930', CardScheme::INVALID_FORMAT_ERROR), // only first part of the number
             array('DISCOVER', '1117', CardScheme::INVALID_FORMAT_ERROR), // only last 4 digits
+            array('MASTERCARD', '2721001234567890', CardScheme::INVALID_FORMAT_ERROR), // Not assigned yet
+            array('MASTERCARD', '2220991234567890', CardScheme::INVALID_FORMAT_ERROR), // Not assigned yet
         );
     }
 }