Chris@14: <?php
Chris@14: /*
Chris@14:  * This file is part of the phpunit-mock-objects package.
Chris@14:  *
Chris@14:  * (c) Sebastian Bergmann <sebastian@phpunit.de>
Chris@14:  *
Chris@14:  * For the full copyright and license information, please view the LICENSE
Chris@14:  * file that was distributed with this source code.
Chris@14:  */
Chris@14: namespace PHPUnit\Framework\MockObject\Stub;
Chris@14: 
Chris@14: use PHPUnit\Framework\MockObject\Invocation;
Chris@14: use PHPUnit\Framework\MockObject\Stub;
Chris@14: use SebastianBergmann\Exporter\Exporter;
Chris@14: 
Chris@14: /**
Chris@14:  * Stubs a method by returning a user-defined stack of values.
Chris@14:  */
Chris@14: class ConsecutiveCalls implements Stub
Chris@14: {
Chris@14:     /**
Chris@14:      * @var array
Chris@14:      */
Chris@14:     private $stack;
Chris@14: 
Chris@14:     /**
Chris@14:      * @var mixed
Chris@14:      */
Chris@14:     private $value;
Chris@14: 
Chris@14:     public function __construct(array $stack)
Chris@14:     {
Chris@14:         $this->stack = $stack;
Chris@14:     }
Chris@14: 
Chris@14:     public function invoke(Invocation $invocation)
Chris@14:     {
Chris@14:         $this->value = \array_shift($this->stack);
Chris@14: 
Chris@14:         if ($this->value instanceof Stub) {
Chris@14:             $this->value = $this->value->invoke($invocation);
Chris@14:         }
Chris@14: 
Chris@14:         return $this->value;
Chris@14:     }
Chris@14: 
Chris@14:     public function toString()
Chris@14:     {
Chris@14:         $exporter = new Exporter;
Chris@14: 
Chris@14:         return \sprintf(
Chris@14:             'return user-specified value %s',
Chris@14:             $exporter->export($this->value)
Chris@14:         );
Chris@14:     }
Chris@14: }