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Filename : ExceptionHandlerTest.php
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<?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\Debug\Tests;

use PHPUnit\Framework\TestCase;
use Symfony\Component\Debug\ExceptionHandler;
use Symfony\Component\Debug\Exception\OutOfMemoryException;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
use Symfony\Component\HttpKernel\Exception\MethodNotAllowedHttpException;

require_once __DIR__.'/HeaderMock.php';

class ExceptionHandlerTest extends TestCase
{
    protected function setUp()
    {
        testHeader();
    }

    protected function tearDown()
    {
        testHeader();
    }

    public function testDebug()
    {
        $handler = new ExceptionHandler(false);

        ob_start();
        $handler->sendPhpResponse(new \RuntimeException('Foo'));
        $response = ob_get_clean();

        $this->assertContains('Whoops, looks like something went wrong.', $response);
        $this->assertNotContains('<div class="trace trace-as-html">', $response);

        $handler = new ExceptionHandler(true);

        ob_start();
        $handler->sendPhpResponse(new \RuntimeException('Foo'));
        $response = ob_get_clean();

        $this->assertContains('Whoops, looks like something went wrong.', $response);
        $this->assertContains('<div class="trace trace-as-html">', $response);
    }

    public function testStatusCode()
    {
        $handler = new ExceptionHandler(false, 'iso8859-1');

        ob_start();
        $handler->sendPhpResponse(new NotFoundHttpException('Foo'));
        $response = ob_get_clean();

        $this->assertContains('Sorry, the page you are looking for could not be found.', $response);

        $expectedHeaders = array(
            array('HTTP/1.0 404', true, null),
            array('Content-Type: text/html; charset=iso8859-1', true, null),
        );

        $this->assertSame($expectedHeaders, testHeader());
    }

    public function testHeaders()
    {
        $handler = new ExceptionHandler(false, 'iso8859-1');

        ob_start();
        $handler->sendPhpResponse(new MethodNotAllowedHttpException(array('POST')));
        $response = ob_get_clean();

        $expectedHeaders = array(
            array('HTTP/1.0 405', true, null),
            array('Allow: POST', false, null),
            array('Content-Type: text/html; charset=iso8859-1', true, null),
        );

        $this->assertSame($expectedHeaders, testHeader());
    }

    public function testNestedExceptions()
    {
        $handler = new ExceptionHandler(true);
        ob_start();
        $handler->sendPhpResponse(new \RuntimeException('Foo', 0, new \RuntimeException('Bar')));
        $response = ob_get_clean();

        $this->assertStringMatchesFormat('%A<p class="break-long-words trace-message">Foo</p>%A<p class="break-long-words trace-message">Bar</p>%A', $response);
    }

    public function testHandle()
    {
        $exception = new \Exception('foo');

        $handler = $this->getMockBuilder('Symfony\Component\Debug\ExceptionHandler')->setMethods(array('sendPhpResponse'))->getMock();
        $handler
            ->expects($this->exactly(2))
            ->method('sendPhpResponse');

        $handler->handle($exception);

        $handler->setHandler(function ($e) use ($exception) {
            $this->assertSame($exception, $e);
        });

        $handler->handle($exception);
    }

    public function testHandleOutOfMemoryException()
    {
        $exception = new OutOfMemoryException('foo', 0, E_ERROR, __FILE__, __LINE__);

        $handler = $this->getMockBuilder('Symfony\Component\Debug\ExceptionHandler')->setMethods(array('sendPhpResponse'))->getMock();
        $handler
            ->expects($this->once())
            ->method('sendPhpResponse');

        $handler->setHandler(function ($e) {
            $this->fail('OutOfMemoryException should bypass the handler');
        });

        $handler->handle($exception);
    }
}