tests/phpunit/includes/TestingAccessWrapper.php

   1 <?php
   2 /**
   3  * Circumvent access restrictions on object internals
   4  *
   5  * This can be helpful for writing tests that can probe object internals,
   6  * without having to modify the class under test to accomodate.
   7  *
   8  * Wrap an object with private methods as follows:
   9  *    $title = TestingAccessWrapper::newFromObject( Title::newFromDBkey( $key ) );
  10  *
  11  * You can access private and protected instance methods and variables:
  12  *    $formatter = $title->getTitleFormatter();
  13  *
  14  * TODO:
  15  * - Provide access to static methods and properties.
  16  * - Organize other helper classes in tests/testHelpers.inc into a directory.
  17  */
  18 class TestingAccessWrapper {
  19         public $object;
  20
  21         /**
  22          * Return the same object, without access restrictions.
  23          */
  24         public static function newFromObject( $object ) {
  25                 $wrapper = new TestingAccessWrapper();
  26                 $wrapper->object = $object;
  27                 return $wrapper;
  28         }
  29
  30         public function __call( $method, $args ) {
  31                 $classReflection = new ReflectionClass( $this->object );
  32                 $methodReflection = $classReflection->getMethod( $method );
  33                 $methodReflection->setAccessible( true );
  34                 return $methodReflection->invokeArgs( $this->object, $args );
  35         }
  36
  37         public function __set( $name, $value ) {
  38                 $classReflection = new ReflectionClass( $this->object );
  39                 $propertyReflection = $classReflection->getProperty( $name );
  40                 $propertyReflection->setAccessible( true );
  41                 $propertyReflection->setValue( $this->object, $value );
  42         }
  43
  44         public function __get( $name ) {
  45                 $classReflection = new ReflectionClass( $this->object );
  46                 $propertyReflection = $classReflection->getProperty( $name );
  47                 $propertyReflection->setAccessible( true );
  48                 return $propertyReflection->getValue( $this->object );
  49         }
  50 }