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   1 <?php
   2 /*
   3  * This file is part of the PHPUnit_MockObject package.
   4  *
   5  * (c) Sebastian Bergmann <sebastian@phpunit.de>
   6  *
   7  * For the full copyright and license information, please view the LICENSE
   8  * file that was distributed with this source code.
   9  */
  10
  11 use SebastianBergmann\Exporter\Exporter;
  12
  13 /**
  14  * Stubs a method by returning a user-defined stack of values.
  15  *
  16  * @since Class available since Release 1.0.0
  17  */
  18 class PHPUnit_Framework_MockObject_Stub_ConsecutiveCalls implements PHPUnit_Framework_MockObject_Stub
  19 {
  20     protected $stack;
  21     protected $value;
  22
  23     public function __construct($stack)
  24     {
  25         $this->stack = $stack;
  26     }
  27
  28     public function invoke(PHPUnit_Framework_MockObject_Invocation $invocation)
  29     {
  30         $this->value = array_shift($this->stack);
  31
  32         if ($this->value instanceof PHPUnit_Framework_MockObject_Stub) {
  33             $this->value = $this->value->invoke($invocation);
  34         }
  35
  36         return $this->value;
  37     }
  38
  39     public function toString()
  40     {
  41         $exporter = new Exporter;
  42
  43         return sprintf(
  44             'return user-specified value %s',
  45             $exporter->export($this->value)
  46         );
  47     }
  48 }