fixed functional tests so that the cache/logs are specific to one version of Symfony (to avoid weird side effects)

src/Symfony/Bundle/FrameworkBundle/Tests/Functional/WebTestCase.php

@@ -13,6 +13,7 @@ namespace Symfony\Bundle\FrameworkBundle\Tests\Functional;
 
 use Symfony\Component\HttpKernel\Util\Filesystem;
 use Symfony\Bundle\FrameworkBundle\Test\WebTestCase as BaseWebTestCase;
+use Symfony\Component\HttpKernel\Kernel;
 
 class WebTestCase extends BaseWebTestCase
 {
@@ -33,7 +34,7 @@ class WebTestCase extends BaseWebTestCase
 
     protected function deleteTmpDir($testCase)
     {
-        if (!file_exists($dir = sys_get_temp_dir().'/'.$testCase)) {
+        if (!file_exists($dir = sys_get_temp_dir().'/'.Kernel::VERSION.'/'.$testCase)) {
             return;
         }
 

src/Symfony/Bundle/FrameworkBundle/Tests/Functional/app/AppKernel.php

@@ -80,12 +80,12 @@ class AppKernel extends Kernel
 
     public function getCacheDir()
     {
-        return sys_get_temp_dir().'/'.$this->testCase.'/cache/'.$this->environment;
+        return sys_get_temp_dir().'/'.Kernel::VERSION.'/'.$this->testCase.'/cache/'.$this->environment;
     }
 
     public function getLogDir()
     {
-        return sys_get_temp_dir().'/'.$this->testCase.'/logs';
+        return sys_get_temp_dir().'/'.Kernel::VERSION.'/'.$this->testCase.'/logs';
     }
 
     public function registerContainerConfiguration(LoaderInterface $loader)

src/Symfony/Bundle/SecurityBundle/Tests/Functional/WebTestCase.php

@@ -13,6 +13,7 @@ namespace Symfony\Bundle\SecurityBundle\Tests\Functional;
 
 use Symfony\Component\HttpKernel\Util\Filesystem;
 use Symfony\Bundle\FrameworkBundle\Test\WebTestCase as BaseWebTestCase;
+use Symfony\Component\HttpKernel\Kernel;
 
 class WebTestCase extends BaseWebTestCase
 {
@@ -33,7 +34,7 @@ class WebTestCase extends BaseWebTestCase
 
     protected function deleteTmpDir($testCase)
     {
-        if (!file_exists($dir = sys_get_temp_dir().'/'.$testCase)) {
+        if (!file_exists($dir = sys_get_temp_dir().'/'.Kernel::VERSION.'/'.$testCase)) {
             return;
         }
 

src/Symfony/Bundle/SecurityBundle/Tests/Functional/app/AppKernel.php

@@ -80,12 +80,12 @@ class AppKernel extends Kernel
 
     public function getCacheDir()
     {
-        return sys_get_temp_dir().'/'.$this->testCase.'/cache/'.$this->environment;
+        return sys_get_temp_dir().'/'.Kernel::VERSION.'/'.$this->testCase.'/cache/'.$this->environment;
     }
 
     public function getLogDir()
     {
-        return sys_get_temp_dir().'/'.$this->testCase.'/logs';
+        return sys_get_temp_dir().'/'.Kernel::VERSION.'/'.$this->testCase.'/logs';
     }
 
     public function registerContainerConfiguration(LoaderInterface $loader)