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Filename : HmacSha1SignatureTest.php
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<?php namespace League\OAuth1\Client\Tests;

/**
 * Part of the Sentry package.
 *
 * NOTICE OF LICENSE
 *
 * Licensed under the 3-clause BSD License.
 *
 * This source file is subject to the 3-clause BSD License that is
 * bundled with this package in the LICENSE file.  It is also available at
 * the following URL: http://www.opensource.org/licenses/BSD-3-Clause
 *
 * @package    Sentry
 * @version    2.0.0
 * @author     Cartalyst LLC
 * @license    BSD License (3-clause)
 * @copyright  (c) 2011 - 2013, Cartalyst LLC
 * @link       http://cartalyst.com
 */

use League\OAuth1\Client\Signature\HmacSha1Signature;
use Mockery as m;
use PHPUnit_Framework_TestCase;

class HmacSha1SignatureTest extends PHPUnit_Framework_TestCase
{
    /**
     * Close mockery.
     *
     * @return void
     */
    public function tearDown()
    {
        m::close();
    }

    public function testSigningRequest()
    {
        $signature = new HmacSha1Signature($this->getMockClientCredentials());

        $uri = 'http://www.example.com/?qux=corge';
        $parameters = array('foo' => 'bar', 'baz' => null);

        $this->assertEquals('A3Y7C1SUHXR1EBYIUlT3d6QT1cQ=', $signature->sign($uri, $parameters));
    }

    public function testQueryStringFromArray()
    {
        $array = array('a' => 'b');
        $res = $this->invokeQueryStringFromData($array);

        $this->assertSame(
            'a%3Db',
            $res
        );
    }

    public function testQueryStringFromIndexedArray()
    {
        $array = array('a', 'b');
        $res = $this->invokeQueryStringFromData($array);

        $this->assertSame(
            '0%3Da%261%3Db',
            $res
        );
    }

    public function testQueryStringFromMultiDimensionalArray()
    {
        $array = array(
            'a' => array(
                'b' => array(
                    'c' => 'd',
                ),
                'e' => array(
                    'f' => 'g',
                ),
            ),
            'h' => 'i',
            'empty' => '',
            'null' => null,
            'false' => false,
        );

        // Convert to query string.
        $res = $this->invokeQueryStringFromData($array);

        $this->assertSame(
            'a%5Bb%5D%5Bc%5D%3Dd%26a%5Be%5D%5Bf%5D%3Dg%26h%3Di%26empty%3D%26null%3D%26false%3D',
            $res
        );

        // Reverse engineer the string.
        $res = urldecode($res);

        $this->assertSame(
            'a[b][c]=d&a[e][f]=g&h=i&empty=&null=&false=',
            $res
        );

        // Finally, parse the string back to an array.
        parse_str($res, $original_array);

        // And ensure it matches the orignal array (approximately).
        $this->assertSame(
            array(
                'a' => array(
                    'b' => array(
                        'c' => 'd',
                    ),
                    'e' => array(
                        'f' => 'g',
                    ),
                ),
                'h' => 'i',
                'empty' => '',
                'null' => '', // null value gets lost in string translation
                'false' => '', // false value gets lost in string translation
            ),
            $original_array
        );
    }

    public function testSigningRequestWithMultiDimensionalParams()
    {
        $signature = new HmacSha1Signature($this->getMockClientCredentials());

        $uri = 'http://www.example.com/';
        $parameters = array(
            'a' => array(
                'b' => array(
                    'c' => 'd',
                ),
                'e' => array(
                    'f' => 'g',
                ),
            ),
            'h' => 'i',
            'empty' => '',
            'null' => null,
            'false' => false,
        );

        $this->assertEquals('ZUxiJKugeEplaZm9e4hshN0I70U=', $signature->sign($uri, $parameters));
    }

    protected function invokeQueryStringFromData(array $args)
    {
        $signature = new HmacSha1Signature(m::mock('League\OAuth1\Client\Credentials\ClientCredentialsInterface'));
        $refl = new \ReflectionObject($signature);
        $method = $refl->getMethod('queryStringFromData');
        $method->setAccessible(true);
        return $method->invokeArgs($signature, array($args));
    }

    protected function getMockClientCredentials()
    {
        $clientCredentials = m::mock('League\OAuth1\Client\Credentials\ClientCredentialsInterface');
        $clientCredentials->shouldReceive('getSecret')->andReturn('clientsecret');
        return $clientCredentials;
    }
}