Update to drupal 8.0.0-rc1. For more information, see https://www.drupal.org/node/2582663

vendor/symfony/http-kernel/Tests/DataCollector/ExceptionDataCollectorTest.php

@@ -0,0 +1,39 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\HttpKernel\Tests\DataCollector;
+
+use Symfony\Component\Debug\Exception\FlattenException;
+use Symfony\Component\HttpKernel\DataCollector\ExceptionDataCollector;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\Response;
+
+class ExceptionDataCollectorTest extends \PHPUnit_Framework_TestCase
+{
+    public function testCollect()
+    {
+        $e = new \Exception('foo', 500);
+        $c = new ExceptionDataCollector();
+        $flattened = FlattenException::create($e);
+        $trace = $flattened->getTrace();
+
+        $this->assertFalse($c->hasException());
+
+        $c->collect(new Request(), new Response(), $e);
+
+        $this->assertTrue($c->hasException());
+        $this->assertEquals($flattened, $c->getException());
+        $this->assertSame('foo', $c->getMessage());
+        $this->assertSame(500, $c->getCode());
+        $this->assertSame('exception', $c->getName());
+        $this->assertSame($trace, $c->getTrace());
+    }
+}