fixed $_ENV/$_SERVER precedence in test framework

Author: fabpot

Test/KernelTestCase.php

@@ -107,7 +107,7 @@ private static function getPhpUnitCliConfigArgument()
     protected static function getKernelClass()
     {
         if (isset($_SERVER['KERNEL_CLASS']) || isset($_ENV['KERNEL_CLASS'])) {
-            $class = isset($_SERVER['KERNEL_CLASS']) ? $_SERVER['KERNEL_CLASS'] : $_ENV['KERNEL_CLASS'];
+            $class = isset($_ENV['KERNEL_CLASS']) ? $_ENV['KERNEL_CLASS'] : $_SERVER['KERNEL_CLASS'];
             if (!class_exists($class)) {
                 throw new \RuntimeException(sprintf('Class "%s" doesn\'t exist or cannot be autoloaded. Check that the KERNEL_CLASS value in phpunit.xml matches the fully-qualified class name of your Kernel or override the %s::createKernel() method.', $class, static::class));
             }
@@ -116,7 +116,7 @@ protected static function getKernelClass()
         }
 
         if (isset($_SERVER['KERNEL_DIR']) || isset($_ENV['KERNEL_DIR'])) {
-            $dir = isset($_SERVER['KERNEL_DIR']) ? $_SERVER['KERNEL_DIR'] : $_ENV['KERNEL_DIR'];
+            $dir = isset($_ENV['KERNEL_DIR']) ? $_ENV['KERNEL_DIR'] : $_SERVER['KERNEL_DIR'];
 
             if (!is_dir($dir)) {
                 $phpUnitDir = static::getPhpUnitXmlDir();
@@ -176,20 +176,20 @@ protected static function createKernel(array $options = array())
 
         if (isset($options['environment'])) {
             $env = $options['environment'];
-        } elseif (isset($_SERVER['APP_ENV'])) {
-            $env = $_SERVER['APP_ENV'];
         } elseif (isset($_ENV['APP_ENV'])) {
             $env = $_ENV['APP_ENV'];
+        } elseif (isset($_SERVER['APP_ENV'])) {
+            $env = $_SERVER['APP_ENV'];
         } else {
             $env = 'test';
         }
 
         if (isset($options['debug'])) {
             $debug = $options['debug'];
-        } elseif (isset($_SERVER['APP_DEBUG'])) {
-            $debug = $_SERVER['APP_DEBUG'];
         } elseif (isset($_ENV['APP_DEBUG'])) {
             $debug = $_ENV['APP_DEBUG'];
+        } elseif (isset($_SERVER['APP_DEBUG'])) {
+            $debug = $_SERVER['APP_DEBUG'];
         } else {
             $debug = true;
         }