symfony/tests/Symfony/Tests/Components/BrowserKit/HistoryTest.php

<?php

/*
 * This file is part of the symfony package.
 *
 * (c) Fabien Potencier <fabien.potencier@symfony-project.com>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Symfony\Tests\Components\BrowserKit;

use Symfony\Components\BrowserKit\History;
use Symfony\Components\BrowserKit\Request;

class HistoryTest extends \PHPUnit_Framework_TestCase
{
  public function testAdd()
  {
    $history = new History();
    $history->add(new Request('http://www.example1.com/', 'get'));
    $this->assertSame('http://www.example1.com/', $history->current()->getUri(), '->add() adds a request to the history');

    $history->add(new Request('http://www.example2.com/', 'get'));
    $this->assertSame('http://www.example2.com/', $history->current()->getUri(), '->add() adds a request to the history');

    $history->add(new Request('http://www.example3.com/', 'get'));
    $history->back();
    $history->add(new Request('http://www.example4.com/', 'get'));
    $this->assertSame('http://www.example4.com/', $history->current()->getUri(), '->add() adds a request to the history');

    $history->back();
    $this->assertSame('http://www.example2.com/', $history->current()->getUri(), '->add() adds a request to the history');
  }

  public function testClearIsEmpty()
  {
    $history = new History();
    $history->add(new Request('http://www.example.com/', 'get'));

    $this->assertFalse($history->isEmpty(), '->isEmpty() returns false if the history is not empty');

    $history->clear();

    $this->assertTrue($history->isEmpty(), '->isEmpty() true if the history is empty');
  }

  public function testCurrent()
  {
    $history = new History();

    try
    {
      $history->current();
      $this->fail('->current() throws a \LogicException if the history is empty');
    }
    catch (\Exception $e)
    {
      $this->assertInstanceof('LogicException', $e, '->current() throws a \LogicException if the history is empty');
    }

    $history->add(new Request('http://www.example.com/', 'get'));

    $this->assertSame('http://www.example.com/', $history->current()->getUri(), '->current() returns the current request in the history');
  }

  public function testBack()
  {
    $history = new History();
    $history->add(new Request('http://www.example.com/', 'get'));

    try
    {
      $history->back();
      $this->fail('->back() throws a \LogicException if the history is already on the first page');
    }
    catch (\Exception $e)
    {
      $this->assertInstanceof('LogicException', $e, '->current() throws a \LogicException if the history is already on the first page');
    }

    $history->add(new Request('http://www.example1.com/', 'get'));
    $history->back();

    $this->assertSame('http://www.example.com/', $history->current()->getUri(), '->back() returns the previous request in the history');
  }

  public function testForward()
  {
    $history = new History();
    $history->add(new Request('http://www.example.com/', 'get'));
    $history->add(new Request('http://www.example1.com/', 'get'));

    try
    {
      $history->forward();
      $this->fail('->forward() throws a \LogicException if the history is already on the last page');
    }
    catch (\Exception $e)
    {
      $this->assertInstanceof('LogicException', $e, '->forward() throws a \LogicException if the history is already on the last page');
    }

    $history->back();
    $history->forward();

    $this->assertSame('http://www.example1.com/', $history->current()->getUri(), '->forward() returns the next request in the history');
  }
}