<?php declare(strict_types=1);
/*
 * This file is part of PHPUnit.
 *
 * (c) Sebastian Bergmann <sebastian@phpunit.de>
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */
namespace PHPUnit\Framework\Constraint;

use function count;

use SebastianBergmann\RecursionContext\InvalidArgumentException;

/**
 * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit
 */
abstract class UnaryOperator extends Operator
{
    /**
     * @var Constraint
     */
    private $constraint;

    /**
     * @param Constraint|mixed $constraint
     */
    public function __construct($constraint)
    {
        $this->constraint = $this->checkConstraint($constraint);
    }

    /**
     * Returns the number of operands (constraints).
     */
    public function arity(): int
    {
        return 1;
    }

    /**
     * Returns a string representation of the constraint.
     */
    public function toString(): string
    {
        $reduced = $this->reduce();

        if ($reduced !== $this) {
            return $reduced->toString();
        }

        $constraint = $this->constraint->reduce();

        if ($this->constraintNeedsParentheses($constraint)) {
            return $this->operator() . '( ' . $constraint->toString() . ' )';
        }

        $string = $constraint->toStringInContext($this, 0);

        if ($string === '') {
            return $this->transformString($constraint->toString());
        }

        return $string;
    }

    /**
     * Counts the number of constraint elements.
     */
    public function count(): int
    {
        return count($this->constraint);
    }

    /**
     * Returns the description of the failure.
     *
     * The beginning of failure messages is "Failed asserting that" in most
     * cases. This method should return the second part of that sentence.
     *
     * @param mixed $other evaluated value or object
     *
     * @throws InvalidArgumentException
     */
    protected function failureDescription($other): string
    {
        $reduced = $this->reduce();

        if ($reduced !== $this) {
            return $reduced->failureDescription($other);
        }

        $constraint = $this->constraint->reduce();

        if ($this->constraintNeedsParentheses($constraint)) {
            return $this->operator() . '( ' . $constraint->failureDescription($other) . ' )';
        }

        $string = $constraint->failureDescriptionInContext($this, 0, $other);

        if ($string === '') {
            return $this->transformString($constraint->failureDescription($other));
        }

        return $string;
    }

    /**
     * Transforms string returned by the memeber constraint's toString() or
     * failureDescription() such that it reflects constraint's participation in
     * this expression.
     *
     * The method may be overwritten in a subclass to apply default
     * transformation in case the operand constraint does not provide its own
     * custom strings via toStringInContext() or failureDescriptionInContext().
     *
     * @param string $string the string to be transformed
     */
    protected function transformString(string $string): string
    {
        return $string;
    }

    /**
     * Provides access to $this->constraint for subclasses.
     */
    final protected function constraint(): Constraint
    {
        return $this->constraint;
    }

    /**
     * Returns true if the $constraint needs to be wrapped with parentheses.
     */
    protected function constraintNeedsParentheses(Constraint $constraint): bool
    {
        $constraint = $constraint->reduce();

        return $constraint instanceof self || parent::constraintNeedsParentheses($constraint);
    }
}

• [F] BinaryOperator.php
  Delete
• [F] LogicalAnd.php
  Delete
• [F] LogicalNot.php
  Delete
• [F] LogicalOr.php
  Delete
• [F] LogicalXor.php
  Delete
• [F] Operator.php
  Delete
• [F] UnaryOperator.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"
                        
}