<?php
namespace Hamcrest\Arrays;

/*
 Copyright (c) 2009 hamcrest.org
 */
use Hamcrest\Description;
use Hamcrest\Matcher;
use Hamcrest\TypeSafeMatcher;
use Hamcrest\Util;

/**
 * Matches if an array contains the specified key.
 */
class IsArrayContainingKey extends TypeSafeMatcher
{

    private $_keyMatcher;

    public function __construct(Matcher $keyMatcher)
    {
        parent::__construct(self::TYPE_ARRAY);

        $this->_keyMatcher = $keyMatcher;
    }

    protected function matchesSafely($array)
    {
        foreach ($array as $key => $element) {
            if ($this->_keyMatcher->matches($key)) {
                return true;
            }
        }

        return false;
    }

    protected function describeMismatchSafely($array, Description $mismatchDescription)
    {
        //Not using appendValueList() so that keys can be shown
        $mismatchDescription->appendText('array was ')
                                                ->appendText('[')
                                                ;
        $loop = false;
        foreach ($array as $key => $value) {
            if ($loop) {
                $mismatchDescription->appendText(', ');
            }
            $mismatchDescription->appendValue($key)->appendText(' => ')->appendValue($value);
            $loop = true;
        }
        $mismatchDescription->appendText(']');
    }

    public function describeTo(Description $description)
    {
        $description
                 ->appendText('array with key ')
                 ->appendDescriptionOf($this->_keyMatcher)
                 ;
    }

    /**
     * Evaluates to true if any key in an array matches the given matcher.
     *
     * @param mixed $key as a {@link Hamcrest\Matcher} or a value.
     *
     * @return \Hamcrest\Arrays\IsArrayContainingKey
     * @factory hasKey
     */
    public static function hasKeyInArray($key)
    {
        return new self(Util::wrapValueWithIsEqual($key));
    }
}

• [F] IsArray.php
  Delete
• [F] IsArrayContaining.php
  Delete
• [F] IsArrayContainingInAnyOrder.php
  Delete
• [F] IsArrayContainingInOrder.php
  Delete
• [F] IsArrayContainingKey.php
  Delete
• [F] IsArrayContainingKeyValuePair.php
  Delete
• [F] IsArrayWithSize.php
  Delete
• [F] MatchingOnce.php
  Delete
• [F] SeriesMatchingOnce.php
  Delete

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                        Request Example (guzzle)
                        

                        
                            
<?php
                            
 require_once('vendor/autoload.php');
                            
 $client = new \GuzzleHttp\Client();
                            
 $response = $client->request('POST', $base_url. 'v1/generate-token', [
                            
'headers' => [
                            
  'accept' => 'application/json',
                            
  'content-type' => 'application/json',
                            
 ],
                            
'form_params' => [
                            
  'client_id'     => '$client_id',
                            
  'secret_id'     => 'secret_id',
                            
  'env'           => 'env',
                            
  'merchant_id'   => 'merchant_id',
                            
 ],
                            
                            
]);
                            
echo $response->getBody();
                        
                    
                

                    
                        
**Response: SUCCESS (200 OK)**
                        
{
                        
 "message": {
                        
 "success": [
                        
  "Successfully token is generated"
                        
 ]
                        
},
                        
"data": {
                        
 "token":"eyJpdiI6InpkczhjTjhQdVhUL2lKQ0pSUUx6aUE9P
SIsInZhbHVlIjoiVGVBTVBDTXltbjNZcEIvdEJveGpTSno3TU5NRUtn
VkhCZ1pHTFNCUnZGQ2UxMnYxN202cEE1YVRDTEFsc0ZERExoTjdtL0dTL2x
oU3QzeUJJOExiMUx5T0w1L0llUXhTUkU1cWVLWEdEbEplb0dKNXcwbTNRM0
VxdkUwYzZuNFdtNkhMQ0pRZysyNWkvdzBxSlBoSVBSOGFTekNnR2RXNHVtc
G9lMGZOTmNCcm1hR3c5Sk9KTnB4Y3ltZDl6cm90MThrR21Ca3B1azc3bXRi
Q0J6SW96UVo1elNkU1ZqeE05bTcwWGp1MEUxWlJFdnNWTmpSbnVpeW92b2U
4dXZkUGgyb1VmK0luaGdyaFlsVTZlcVpVRnZlTG1DeFF6Ykk2T2h6Z3Jzbn
IyNHpNdHowSE5JdDR0Y0pZT20zUm1XYW8iLCJtYWMiOiJlY2M4NGE1OGUzYz
kzYzk0YzljNmVmNjE0YWI0ZDIwOGI3NDQ2YWEyY2ZhNzc0NzE4ZmY1ZmYyMz

                        IyZmQzNDY1IiwidGFnIjoiIn0=",
                        
},
                        
"type": "success"
                        
}
                    
                

                    
                        
**Response: ERROR (400 FAILED)**
                        
{
                        
 "message": {
                        
 "error": [
                        
  "Invalid credentials."
                        
 ]
                        
},
                        
"data": null,
                        
"type": "error"
                        
}