[2.6] fix deprecation silencing...

This PR was merged into the 2.6 branch.

Discussion
----------

[Debug] split tests for deprecated interfaces

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

Splitting tests for deprecated interfaces in "Legacy" prefixed test classes/methods should be done for every component.
Let's start by this simple one. To anyone: help welcomed for the other components.

Commits
-------

3a18cc6 [Debug] split tests for deprecated interfaces

DebugClassLoader.php

@@ -65,11 +65,7 @@ class DebugClassLoader
      */
     public function getClassLoader()
     {
-        if ($this->wasFinder) {
-            return $this->classLoader[0];
-        } else {
-            return $this->classLoader;
-        }
+        return $this->wasFinder ? $this->classLoader[0] : $this->classLoader;
     }
 
     /**
@@ -141,7 +137,7 @@ class DebugClassLoader
      *
      * @param string $class The name of the class
      *
-     * @return bool|null    True, if loaded
+     * @return bool|null True, if loaded
      *
      * @throws \RuntimeException
      */
@@ -214,7 +210,7 @@ class DebugClassLoader
                     chdir($cwd);
                 }
 
-                if ( 0 === substr_compare($real, $tail, -strlen($tail), strlen($tail), true)
+                if (0 === substr_compare($real, $tail, -strlen($tail), strlen($tail), true)
                   && 0 !== substr_compare($real, $tail, -strlen($tail), strlen($tail), false)
                 ) {
                     throw new \RuntimeException(sprintf('Case mismatch between class and source file names: %s vs %s', $class, $real));

ErrorHandler.php

@@ -338,7 +338,7 @@ class ErrorHandler
     /**
      * Handles errors by filtering then logging them according to the configured bit fields.
      *
-     * @param int    $type One of the E_* constants
+     * @param int    $type    One of the E_* constants
      * @param string $file
      * @param int    $line
      * @param array  $context
@@ -584,7 +584,7 @@ class ErrorHandler
     /**
      * Sets the level at which the conversion to Exception is done.
      *
-     * @param int|null     $level The level (null to use the error_reporting() value and 0 to disable)
+     * @param int|null $level The level (null to use the error_reporting() value and 0 to disable)
      *
      * @deprecated since 2.6, to be removed in 3.0. Use throwAt() instead.
      */
@@ -597,7 +597,7 @@ class ErrorHandler
     /**
      * Sets the display_errors flag value.
      *
-     * @param int     $displayErrors The display_errors flag value
+     * @param int $displayErrors The display_errors flag value
      *
      * @deprecated since 2.6, to be removed in 3.0. Use throwAt() instead.
      */

Exception/FatalErrorException.php

@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\Debug\Exception;
 
+use Symfony\Component\HttpKernel\Exception\FatalErrorException as LegacyFatalErrorException;
+
 /**
  * Fatal Error Exception.
  *
@@ -18,6 +20,19 @@ namespace Symfony\Component\Debug\Exception;
  * @author Konstanton Myakshin <koc-dp@yandex.ru>
  * @author Nicolas Grekas <p@tchwork.com>
  */
+class FatalErrorException extends LegacyFatalErrorException
+{
+}
+
+namespace Symfony\Component\HttpKernel\Exception;
+
+/**
+ * Fatal Error Exception.
+ *
+ * @author Konstanton Myakshin <koc-dp@yandex.ru>
+ *
+ * @deprecated Deprecated in 2.3, to be removed in 3.0. Use the same class from the Debug component instead.
+ */
 class FatalErrorException extends \ErrorException
 {
     public function __construct($message, $code, $severity, $filename, $lineno, $traceOffset = null, $traceArgs = true)

Exception/FlattenException.php

@@ -11,6 +11,7 @@
 
 namespace Symfony\Component\Debug\Exception;
 
+use Symfony\Component\HttpKernel\Exception\FlattenException as LegacyFlattenException;
 use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
 
 /**
@@ -20,7 +21,7 @@ use Symfony\Component\HttpKernel\Exception\HttpExceptionInterface;
  *
  * @author Fabien Potencier <fabien@symfony.com>
  */
-class FlattenException
+class FlattenException extends LegacyFlattenException
 {
     private $message;
     private $code;
@@ -210,17 +211,20 @@ class FlattenException
         }
     }
 
-    private function flattenArgs($args, $level = 0)
+    private function flattenArgs($args, $level = 0, &$count = 0)
     {
         $result = array();
         foreach ($args as $key => $value) {
+            if (++$count > 1e4) {
+                return array('array', '*SKIPPED over 10000 entries*');
+            }
             if (is_object($value)) {
                 $result[$key] = array('object', get_class($value));
             } elseif (is_array($value)) {
                 if ($level > 10) {
                     $result[$key] = array('array', '*DEEP NESTED ARRAY*');
                 } else {
-                    $result[$key] = array('array', $this->flattenArgs($value, $level + 1));
+                    $result[$key] = array('array', $this->flattenArgs($value, $level + 1, $count));
                 }
             } elseif (null === $value) {
                 $result[$key] = array('null', null);
@@ -246,3 +250,35 @@ class FlattenException
         return $array['__PHP_Incomplete_Class_Name'];
     }
 }
+
+namespace Symfony\Component\HttpKernel\Exception;
+
+use Symfony\Component\Debug\Exception\FlattenException as DebugFlattenException;
+
+/**
+ * FlattenException wraps a PHP Exception to be able to serialize it.
+ *
+ * Basically, this class removes all objects from the trace.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ *
+ * @deprecated Deprecated in 2.3, to be removed in 3.0. Use the same class from the Debug component instead.
+ */
+class FlattenException
+{
+    private $handler;
+
+    public static function __callStatic($method, $args)
+    {
+        return forward_static_call_array(array('Symfony\Component\Debug\Exception\FlattenException', $method), $args);
+    }
+
+    public function __call($method, $args)
+    {
+        if (!isset($this->handler)) {
+            $this->handler = new DebugFlattenException();
+        }
+
+        return call_user_func_array(array($this->handler, $method), $args);
+    }
+}

ExceptionHandler.php

@@ -142,8 +142,10 @@ class ExceptionHandler
      * this method will use it to create and send the response. If not,
      * it will fallback to plain PHP functions.
      *
-     * @see sendPhpResponse
-     * @see createResponse
+     * @param \Exception $exception An \Exception instance
+     *
+     * @see sendPhpResponse()
+     * @see createResponse()
      */
     private function failSafeHandle(\Exception $exception)
     {

FatalErrorHandler/ClassNotFoundFatalErrorHandler.php

@@ -15,7 +15,8 @@ use Symfony\Component\Debug\Exception\ClassNotFoundException;
 use Symfony\Component\Debug\Exception\FatalErrorException;
 use Symfony\Component\Debug\DebugClassLoader;
 use Composer\Autoload\ClassLoader as ComposerClassLoader;
-use Symfony\Component\ClassLoader as SymfonyClassLoader;
+use Symfony\Component\ClassLoader\ClassLoader as SymfonyClassLoader;
+use Symfony\Component\ClassLoader\UniversalClassLoader as SymfonyUniversalClassLoader;
 
 /**
  * ErrorHandler for classes that do not exist.
@@ -91,11 +92,11 @@ class ClassNotFoundFatalErrorHandler implements FatalErrorHandlerInterface
 
         // find Symfony and Composer autoloaders
         $classes = array();
+
         foreach ($functions as $function) {
             if (!is_array($function)) {
                 continue;
             }
-
             // get class loaders wrapped by DebugClassLoader
             if ($function[0] instanceof DebugClassLoader) {
                 $function = $function[0]->getClassLoader();
@@ -110,7 +111,7 @@ class ClassNotFoundFatalErrorHandler implements FatalErrorHandlerInterface
                 }
             }
 
-            if ($function[0] instanceof ComposerClassLoader || $function[0] instanceof SymfonyClassLoader) {
+            if ($function[0] instanceof ComposerClassLoader || $function[0] instanceof SymfonyClassLoader || $function[0] instanceof SymfonyUniversalClassLoader) {
                 foreach ($function[0]->getPrefixes() as $prefix => $paths) {
                     foreach ($paths as $path) {
                         $classes = array_merge($classes, $this->findClassInPath($path, $class, $prefix));
@@ -119,7 +120,7 @@ class ClassNotFoundFatalErrorHandler implements FatalErrorHandlerInterface
             }
         }
 
-        return $classes;
+        return array_unique($classes);
     }
 
     /**

LICENSE

@@ -1,4 +1,4 @@
-Copyright (c) 2004-2014 Fabien Potencier
+Copyright (c) 2004-2015 Fabien Potencier
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -24,7 +24,7 @@ if ('cli' !== php_sapi_name()) {
 } elseif (!ini_get('log_errors') || ini_get('error_log')) {
     ini_set('display_errors', 1);
 }
-ErrorHandler::register($errorReportingLevel);
+ErrorHandler::register();
 ```
 
 Note that the `Debug::enable()` call also registers the debug class loader

Tests/DebugClassLoaderTest.php

@@ -62,17 +62,14 @@ class DebugClassLoaderTest extends \PHPUnit_Framework_TestCase
     public function testUnsilencing()
     {
         ob_start();
-        $bak = array(
-            ini_set('log_errors', 0),
-            ini_set('display_errors', 1),
-        );
+
+        $this->iniSet('log_errors', 0);
+        $this->iniSet('display_errors', 1);
 
         // See below: this will fail with parse error
         // but this should not be @-silenced.
         @class_exists(__NAMESPACE__.'\TestingUnsilencing', true);
 
-        ini_set('log_errors', $bak[0]);
-        ini_set('display_errors', $bak[1]);
         $output = ob_get_clean();
 
         $this->assertStringMatchesFormat('%aParse error%a', $output);

Tests/ErrorHandlerTest.php

@@ -16,36 +16,13 @@ use Symfony\Component\Debug\ErrorHandler;
 use Symfony\Component\Debug\Exception\ContextErrorException;
 
 /**
- * ErrorHandlerTest
+ * ErrorHandlerTest.
  *
  * @author Robert Schönthal <seroscho@googlemail.com>
  * @author Nicolas Grekas <p@tchwork.com>
  */
 class ErrorHandlerTest extends \PHPUnit_Framework_TestCase
 {
-    /**
-     * @var int Error reporting level before running tests.
-     */
-    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');
-    }
-
-    public function tearDown()
-    {
-        ini_set('display_errors', $this->displayErrors);
-        error_reporting($this->errorReporting);
-    }
-
     public function testRegister()
     {
         $handler = ErrorHandler::register();
@@ -192,6 +169,8 @@ class ErrorHandlerTest extends \PHPUnit_Framework_TestCase
 
     public function testHandleError()
     {
+        $this->iniSet('error_reporting', -1);
+
         try {
             $handler = ErrorHandler::register();
             $handler->throwAt(0, true);
@@ -380,8 +359,10 @@ class ErrorHandlerTest extends \PHPUnit_Framework_TestCase
         }
     }
 
-    public function testDeprecatedInterface()
+    public function testLegacyInterface()
     {
+        $this->iniSet('error_reporting', -1 & ~E_USER_DEPRECATED);
+
         try {
             $handler = ErrorHandler::register(0);
             $this->assertFalse($handler->handle(0, 'foo', 'foo.php', 12, array()));

Tests/Exception/FlattenExceptionTest.php

@@ -186,6 +186,28 @@ class FlattenExceptionTest extends \PHPUnit_Framework_TestCase
         $this->assertContains('*DEEP NESTED ARRAY*', serialize($trace));
     }
 
+    public function testTooBigArray()
+    {
+        $a = array();
+        for ($i = 0; $i < 20; $i++) {
+            for ($j = 0; $j < 50; $j++) {
+                for ($k = 0; $k < 10; $k++) {
+                    $a[$i][$j][$k] = 'value';
+                }
+            }
+        }
+        $a[20] = 'value';
+        $a[21] = 'value1';
+        $exception = $this->createException($a);
+
+        $flattened = FlattenException::create($exception);
+        $trace = $flattened->getTrace();
+        $serializeTrace = serialize($trace);
+
+        $this->assertContains('*SKIPPED over 10000 entries*', $serializeTrace);
+        $this->assertNotContains('*value1*', $serializeTrace);
+    }
+
     private function createException($foo)
     {
         return new \Exception();

Tests/FatalErrorHandler/ClassNotFoundFatalErrorHandlerTest.php

@@ -11,6 +11,8 @@
 
 namespace Symfony\Component\Debug\Tests\FatalErrorHandler;
 
+use Symfony\Component\ClassLoader\ClassLoader as SymfonyClassLoader;
+use Symfony\Component\ClassLoader\UniversalClassLoader as SymfonyUniversalClassLoader;
 use Symfony\Component\Debug\Exception\FatalErrorException;
 use Symfony\Component\Debug\FatalErrorHandler\ClassNotFoundFatalErrorHandler;
 
@@ -19,9 +21,10 @@ class ClassNotFoundFatalErrorHandlerTest extends \PHPUnit_Framework_TestCase
     /**
      * @dataProvider provideClassNotFoundData
      */
-    public function testClassNotFound($error, $translatedMessage)
+    public function testHandleClassNotFound($error, $translatedMessage)
     {
         $handler = new ClassNotFoundFatalErrorHandler();
+
         $exception = $handler->handleError($error, new FatalErrorException('', 0, $error['type'], $error['file'], $error['line']));
 
         $this->assertInstanceof('Symfony\Component\Debug\Exception\ClassNotFoundException', $exception);
@@ -31,6 +34,33 @@ class ClassNotFoundFatalErrorHandlerTest extends \PHPUnit_Framework_TestCase
         $this->assertSame($error['line'], $exception->getLine());
     }
 
+    /**
+     * @dataProvider provideLegacyClassNotFoundData
+     */
+    public function testLegacyHandleClassNotFound($error, $translatedMessage, $autoloader)
+    {
+        $this->iniSet('error_reporting', -1 & ~E_USER_DEPRECATED);
+
+        // Unregister all autoloaders to ensure the custom provided
+        // autoloader is the only one to be used during the test run.
+        $autoloaders = spl_autoload_functions();
+        array_map('spl_autoload_unregister', $autoloaders);
+        spl_autoload_register($autoloader);
+
+        $handler = new ClassNotFoundFatalErrorHandler();
+
+        $exception = $handler->handleError($error, new FatalErrorException('', 0, $error['type'], $error['file'], $error['line']));
+
+        spl_autoload_unregister($autoloader);
+        array_map('spl_autoload_register', $autoloaders);
+
+        $this->assertInstanceof('Symfony\Component\Debug\Exception\ClassNotFoundException', $exception);
+        $this->assertSame($translatedMessage, $exception->getMessage());
+        $this->assertSame($error['type'], $exception->getSeverity());
+        $this->assertSame($error['file'], $exception->getFile());
+        $this->assertSame($error['line'], $exception->getLine());
+    }
+
     public function provideClassNotFoundData()
     {
         return array(
@@ -82,6 +112,50 @@ class ClassNotFoundFatalErrorHandlerTest extends \PHPUnit_Framework_TestCase
         );
     }
 
+    public function provideLegacyClassNotFoundData()
+    {
+        $prefixes = array('Symfony\Component\Debug\Exception\\' => realpath(__DIR__.'/../../Exception'));
+
+        $symfonyAutoloader = new SymfonyClassLoader();
+        $symfonyAutoloader->addPrefixes($prefixes);
+
+        $symfonyUniversalClassLoader = new SymfonyUniversalClassLoader();
+        $symfonyUniversalClassLoader->registerPrefixes($prefixes);
+
+        return array(
+            array(
+                array(
+                    'type' => 1,
+                    'line' => 12,
+                    'file' => 'foo.php',
+                    'message' => 'Class \'Foo\\Bar\\UndefinedFunctionException\' not found',
+                ),
+                "Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\Bar\".\nDid you forget a \"use\" statement for \"Symfony\Component\Debug\Exception\UndefinedFunctionException\"?",
+                array($symfonyAutoloader, 'loadClass'),
+            ),
+            array(
+                array(
+                    'type' => 1,
+                    'line' => 12,
+                    'file' => 'foo.php',
+                    'message' => 'Class \'Foo\\Bar\\UndefinedFunctionException\' not found',
+                ),
+                "Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\Bar\".\nDid you forget a \"use\" statement for \"Symfony\Component\Debug\Exception\UndefinedFunctionException\"?",
+                array($symfonyUniversalClassLoader, 'loadClass'),
+            ),
+            array(
+                array(
+                    'type' => 1,
+                    'line' => 12,
+                    'file' => 'foo.php',
+                    'message' => 'Class \'Foo\\Bar\\UndefinedFunctionException\' not found',
+                ),
+                "Attempted to load class \"UndefinedFunctionException\" from namespace \"Foo\\Bar\".\nDid you forget a \"use\" statement for another namespace?",
+                function ($className) { /* do nothing here */ },
+            ),
+        );
+    }
+
     public function testCannotRedeclareClass()
     {
         if (!file_exists(__DIR__.'/../FIXTURES/REQUIREDTWICE.PHP')) {

composer.json

@@ -20,7 +20,8 @@
         "psr/log": "~1.0"
     },
     "require-dev": {
-        "symfony/http-kernel": "~2.1",
+        "symfony/class-loader": "~2.2",
+        "symfony/http-kernel": "~2.3.24|~2.5.9|~2.6,>=2.6.2",
         "symfony/http-foundation": "~2.1"
     },
     "suggest": {

phpunit.xml.dist

@@ -6,6 +6,10 @@
          colors="true"
          bootstrap="vendor/autoload.php"
 >
+    <php>
+        <!-- Silence E_USER_DEPRECATED (-16385 == -1 & ~E_USER_DEPRECATED) -->
+        <ini name="error_reporting" value="-16385"/>
+    </php>
     <testsuites>
         <testsuite name="Symfony Debug Component Test Suite">
             <directory>./Tests/</directory>