<?php
 

 namespace Twig\Tests;
 

 /*
  * This file is part of Twig.
  *
  * (c) Fabien Potencier
  *
  * For the full copyright and license information, please view the LICENSE
  * file that was distributed with this source code.
  */
 

 use PHPUnit\Framework\TestCase;

 use Twig\Environment;
 use Twig\Error\Error;
 use Twig\Error\RuntimeError;
 use Twig\Loader\ArrayLoader;
 use Twig\Loader\FilesystemLoader;
 use Twig\Source;
 

 class ErrorTest extends TestCase

 {

     public function testErrorWithObjectFilename()
     {

         $error = new Error('foo');
         $error->setSourceContext(new Source('', new \SplFileInfo(__FILE__)));

         $this->assertStringContainsString('tests'.\DIRECTORY_SEPARATOR.'ErrorTest.php', $error->getMessage());

     }
 

     public function testTwigExceptionGuessWithMissingVarAndArrayLoader()

     {

         $loader = new ArrayLoader([

             'base.html' => '{% block content %}{% endblock %}',
             'index.html' => <<<EOHTML
 {% extends 'base.html' %}
 {% block content %}
     {{ foo.bar }}
 {% endblock %}
 {% block foo %}
     {{ foo.bar }}
 {% endblock %}
 EOHTML

         ]);

         $twig = new Environment($loader, ['strict_variables' => true, 'debug' => true, 'cache' => false]);

         $template = $twig->load('index.html');

         try {

             $template->render([]);

 
             $this->fail();

         } catch (RuntimeError $e) {

             $this->assertEquals('Variable "foo" does not exist in "index.html" at line 3.', $e->getMessage());

             $this->assertEquals(3, $e->getTemplateLine());

             $this->assertEquals('index.html', $e->getSourceContext()->getName());

         }

     }
 
     public function testTwigExceptionGuessWithExceptionAndArrayLoader()
     {

         $loader = new ArrayLoader([

             'base.html' => '{% block content %}{% endblock %}',
             'index.html' => <<<EOHTML
 {% extends 'base.html' %}
 {% block content %}
     {{ foo.bar }}
 {% endblock %}
 {% block foo %}
     {{ foo.bar }}
 {% endblock %}
 EOHTML

         ]);

         $twig = new Environment($loader, ['strict_variables' => true, 'debug' => true, 'cache' => false]);

         $template = $twig->load('index.html');

         try {

             $template->render(['foo' => new ErrorTest_Foo()]);

 
             $this->fail();

         } catch (RuntimeError $e) {

             $this->assertEquals('An exception has been thrown during the rendering of a template ("Runtime error...") in "index.html" at line 3.', $e->getMessage());

             $this->assertEquals(3, $e->getTemplateLine());

             $this->assertEquals('index.html', $e->getSourceContext()->getName());
         }
     }
 
     public function testTwigExceptionGuessWithMissingVarAndFilesystemLoader()
     {

         $loader = new FilesystemLoader(__DIR__.'/Fixtures/errors');
         $twig = new Environment($loader, ['strict_variables' => true, 'debug' => true, 'cache' => false]);

         $template = $twig->load('index.html');

         try {

             $template->render([]);

 
             $this->fail();

         } catch (RuntimeError $e) {

             $this->assertEquals('Variable "foo" does not exist.', $e->getMessage());
             $this->assertEquals(3, $e->getTemplateLine());
             $this->assertEquals('index.html', $e->getSourceContext()->getName());
             $this->assertEquals(3, $e->getLine());

             $this->assertEquals(strtr(__DIR__.'/Fixtures/errors/index.html', '/', \DIRECTORY_SEPARATOR), $e->getFile());

         }
     }
 
     public function testTwigExceptionGuessWithExceptionAndFilesystemLoader()
     {

         $loader = new FilesystemLoader(__DIR__.'/Fixtures/errors');
         $twig = new Environment($loader, ['strict_variables' => true, 'debug' => true, 'cache' => false]);

         $template = $twig->load('index.html');

         try {

             $template->render(['foo' => new ErrorTest_Foo()]);

 
             $this->fail();

         } catch (RuntimeError $e) {

             $this->assertEquals('An exception has been thrown during the rendering of a template ("Runtime error...").', $e->getMessage());
             $this->assertEquals(3, $e->getTemplateLine());
             $this->assertEquals('index.html', $e->getSourceContext()->getName());
             $this->assertEquals(3, $e->getLine());

             $this->assertEquals(strtr(__DIR__.'/Fixtures/errors/index.html', '/', \DIRECTORY_SEPARATOR), $e->getFile());

         }
     }
 

     /**
      * @dataProvider getErroredTemplates
      */
     public function testTwigExceptionAddsFileAndLine($templates, $name, $line)

     {

         $loader = new ArrayLoader($templates);
         $twig = new Environment($loader, ['strict_variables' => true, 'debug' => true, 'cache' => false]);

         $template = $twig->load('index');

         try {

             $template->render([]);

 
             $this->fail();

         } catch (RuntimeError $e) {

             $this->assertEquals(sprintf('Variable "foo" does not exist in "%s" at line %d.', $name, $line), $e->getMessage());

             $this->assertEquals($line, $e->getTemplateLine());

             $this->assertEquals($name, $e->getSourceContext()->getName());

         }
 

         try {

             $template->render(['foo' => new ErrorTest_Foo()]);

 
             $this->fail();

         } catch (RuntimeError $e) {

             $this->assertEquals(sprintf('An exception has been thrown during the rendering of a template ("Runtime error...") in "%s" at line %d.', $name, $line), $e->getMessage());
             $this->assertEquals($line, $e->getTemplateLine());

             $this->assertEquals($name, $e->getSourceContext()->getName());

         }
     }
 

     public function getErroredTemplates()

     {

         return [

             // error occurs in a template

             [
                 [

                     'index' => "\n\n{{ foo.bar }}\n\n\n{{ 'foo' }}",

                 ],

                 'index', 3,

             ],

 
             // error occurs in an included template

             [
                 [

                     'index' => "{% include 'partial' %}",

                     'partial' => '{{ foo.bar }}',

                 ],

                 'partial', 1,

             ],

 
             // error occurs in a parent block when called via parent()

             [
                 [

                     'index' => "{% extends 'base' %}
                     {% block content %}
                         {{ parent() }}
                     {% endblock %}",

                     'base' => '{% block content %}{{ foo.bar }}{% endblock %}',

                 ],

                 'base', 1,

             ],

 
             // error occurs in a block from the child

             [
                 [

                     'index' => "{% extends 'base' %}
                     {% block content %}
                         {{ foo.bar }}
                     {% endblock %}
                     {% block foo %}
                         {{ foo.bar }}
                     {% endblock %}",

                     'base' => '{% block content %}{% endblock %}',

                 ],

                 'index', 3,

             ],
         ];

     }

 
     public function testTwigLeakOutputInDebugMode()
     {

         $output = exec(sprintf('%s %s debug', \PHP_BINARY, escapeshellarg(__DIR__.'/Fixtures/errors/leak-output.php')));

 
         $this->assertSame('Hello OOPS', $output);
     }
 
     public function testDoesNotTwigLeakOutput()
     {

         $output = exec(sprintf('%s %s', \PHP_BINARY, escapeshellarg(__DIR__.'/Fixtures/errors/leak-output.php')));

 
         $this->assertSame('', $output);
     }

 }
 

 class ErrorTest_Foo

 {
     public function bar()
     {

         throw new \Exception('Runtime error...');

     }
 }