Use PHPUnit ini_set wrapper in tests

PHPUnit ini_set wrapper is now used in tests to automatically reset
ini settings after the test is run. This avoids possible side effects
and test skipping.

Native ini_set is still used in DefaultCsrfProviderTest, but its
tests are run in isolation.

Author: mpajunen

src/Symfony/Component/Debug/Tests/ErrorHandlerTest.php

@@ -26,21 +26,14 @@ class ErrorHandlerTest extends \PHPUnit_Framework_TestCase
      */
     protected $errorReporting;
 
-    /**
-     * @var string Display errors setting before running tests.
-     */
-    protected $displayErrors;
-
     public function setUp()
     {
         $this->errorReporting = error_reporting(E_ALL | E_STRICT);
-        $this->displayErrors = ini_get('display_errors');
-        ini_set('display_errors', '1');
+        $this->iniSet('display_errors', '1');
     }
 
     public function tearDown()
     {
-        ini_set('display_errors', $this->displayErrors);
         error_reporting($this->errorReporting);
     }
 

src/Symfony/Component/HttpFoundation/Tests/Session/Storage/NativeSessionStorageTest.php

@@ -35,8 +35,8 @@ class NativeSessionStorageTest extends \PHPUnit_Framework_TestCase
 
     protected function setUp()
     {
-        ini_set('session.save_handler', 'files');
-        ini_set('session.save_path', $this->savePath = sys_get_temp_dir().'/sf2test');
+        $this->iniSet('session.save_handler', 'files');
+        $this->iniSet('session.save_path', $this->savePath = sys_get_temp_dir().'/sf2test');
         if (!is_dir($this->savePath)) {
             mkdir($this->savePath);
         }
@@ -121,15 +121,15 @@ public function testRegenerateDestroy()
 
     public function testDefaultSessionCacheLimiter()
     {
-        ini_set('session.cache_limiter', 'nocache');
+        $this->iniSet('session.cache_limiter', 'nocache');
 
         $storage = new NativeSessionStorage();
         $this->assertEquals('', ini_get('session.cache_limiter'));
     }
 
     public function testExplicitSessionCacheLimiter()
     {
-        ini_set('session.cache_limiter', 'nocache');
+        $this->iniSet('session.cache_limiter', 'nocache');
 
         $storage = new NativeSessionStorage(array('cache_limiter' => 'public'));
         $this->assertEquals('public', ini_get('session.cache_limiter'));
@@ -171,7 +171,7 @@ public function testSetSaveHandler53()
             $this->markTestSkipped('Test skipped, for PHP 5.3 only.');
         }
 
-        ini_set('session.save_handler', 'files');
+        $this->iniSet('session.save_handler', 'files');
         $storage = $this->getStorage();
         $storage->setSaveHandler();
         $this->assertInstanceOf('Symfony\Component\HttpFoundation\Session\Storage\Proxy\NativeProxy', $storage->getSaveHandler());
@@ -193,7 +193,7 @@ public function testSetSaveHandler54()
             $this->markTestSkipped('Test skipped, for PHP 5.4 only.');
         }
 
-        ini_set('session.save_handler', 'files');
+        $this->iniSet('session.save_handler', 'files');
         $storage = $this->getStorage();
         $storage->setSaveHandler();
         $this->assertInstanceOf('Symfony\Component\HttpFoundation\Session\Storage\Proxy\SessionHandlerProxy', $storage->getSaveHandler());

src/Symfony/Component/HttpFoundation/Tests/Session/Storage/PhpBridgeSessionStorageTest.php

@@ -30,8 +30,8 @@ class PhpBridgeSessionStorageTest extends \PHPUnit_Framework_TestCase
 
     protected function setUp()
     {
-        ini_set('session.save_handler', 'files');
-        ini_set('session.save_path', $this->savePath = sys_get_temp_dir().'/sf2test');
+        $this->iniSet('session.save_handler', 'files');
+        $this->iniSet('session.save_path', $this->savePath = sys_get_temp_dir().'/sf2test');
         if (!is_dir($this->savePath)) {
             mkdir($this->savePath);
         }

src/Symfony/Component/HttpKernel/Tests/EventListener/ExceptionListenerTest.php

@@ -56,8 +56,7 @@ public function testConstruct()
      */
     public function testHandleWithoutLogger($event, $event2)
     {
-        // store the current error_log, and disable it temporarily
-        $errorLog = ini_set('error_log', file_exists('/dev/null') ? '/dev/null' : 'nul');
+        $this->iniSet('error_log', file_exists('/dev/null') ? '/dev/null' : 'nul');
 
         $l = new ExceptionListener('foo');
         $l->onKernelException($event);
@@ -69,9 +68,6 @@ public function testHandleWithoutLogger($event, $event2)
         } catch (\Exception $e) {
             $this->assertSame('foo', $e->getMessage());
         }
-
-        // restore the old error_log
-        ini_set('error_log', $errorLog);
     }
 
     /**

src/Symfony/Component/Process/Tests/ExecutableFinderTest.php

@@ -102,7 +102,7 @@ public function testFindWithOpenBaseDir()
             $this->markTestSkipped('Cannot test when open_basedir is set');
         }
 
-        ini_set('open_basedir', dirname(PHP_BINARY).PATH_SEPARATOR.'/');
+        $this->iniSet('open_basedir', dirname(PHP_BINARY).PATH_SEPARATOR.'/');
 
         $finder = new ExecutableFinder();
         $result = $finder->find($this->getPhpBinaryName());
@@ -125,7 +125,7 @@ public function testFindProcessInOpenBasedir()
         }
 
         $this->setPath('');
-        ini_set('open_basedir', PHP_BINARY.PATH_SEPARATOR.'/');
+        $this->iniSet('open_basedir', PHP_BINARY.PATH_SEPARATOR.'/');
 
         $finder = new ExecutableFinder();
         $result = $finder->find($this->getPhpBinaryName(), false);