Added a failing testcase for escaped % in array parameters

tests/Symfony/Tests/Component/DependencyInjection/ParameterBag/ParameterBagTest.php

@@ -94,6 +94,7 @@ class ParameterBagTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals(array('bar' => array('bar' => array('bar' => 'bar'))), $bag->resolveValue(array('%foo%' => array('%foo%' => array('%foo%' => '%foo%')))), '->resolveValue() replaces placeholders in nested arrays');
         $this->assertEquals('I\'m a %%foo%%', $bag->resolveValue('I\'m a %%foo%%'), '->resolveValue() supports % escaping by doubling it');
         $this->assertEquals('I\'m a bar %%foo bar', $bag->resolveValue('I\'m a %foo% %%foo %foo%'), '->resolveValue() supports % escaping by doubling it');
+        $this->assertEquals(array('foo' => array('bar' => array('ding' => 'I\'m a bar %foo %bar'))), $bag->resolveValue(array('foo' => array('bar' => array('ding' => 'I\'m a bar %%foo %%bar')))), '->resolveValue() supports % escaping by doubling it');
 
         $bag = new ParameterBag(array('foo' => true));
         $this->assertSame(true, $bag->resolveValue('%foo%'), '->resolveValue() replaces arguments that are just a placeholder by their value without casting them to strings');