<?php 
/**
 * 	 Demo Code
 *  
 *   This program is free software: you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation, either version 3 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program. If not, see <http://www.gnu.org/licenses/gpl.txt/>.
 * 
 *   The copyright holder may be reached by emailing john@kleijnweb.nl
 * 	 
 *   
 * 
 * @copyright 	Copyright (C) 2010  Kleijn Web Development
 * @license 	http://www.gnu.org/licenses/gpl.txt GNU General Public License
 */
namespace kwd\blog\virtualproxy;

require_once 'PHPUnit/Framework/TestCase.php';
require_once 'domain/SomeDomainType.php';
require_once 'ProxyGenerator.php';
require_once 'Loader.php';

/**
 * Test case for the proxy generator  
 *
 * @category virtualproxy
 * @package kwd\blog\virtualproxy
 */
class GeneratorTestCase extends \PHPUnit_Framework_TestCase
{
	/**
	 * Assert the generated proxy has the same type as the domain class
	 */
	public function testProxyIsSameType()
	{
		$proxyGenerator = new ProxyGenerator('kwd\blog\virtualproxy\domain');
		
		$code = $proxyGenerator->generate('SomeDomainType');
		
		$this->assertNull(eval($code));
		
		$this->assertType('kwd\blog\virtualproxy\domain\SomeDomainType', new domain\SomeDomainTypeProxy());
	}
	
	/**
	 * Assert that all public and private methods are overriden by the proxy
	 */
	public function testOveridesAllNonPrivateMethods()
	{
		$subjectRefl = new \ReflectionClass('kwd\blog\virtualproxy\domain\SomeDomainType');
		$proxyRefl = new \ReflectionClass('kwd\blog\virtualproxy\domain\SomeDomainTypeProxy');
		
		foreach($subjectRefl->getMethods(\ReflectionMethod::IS_PUBLIC | \ReflectionMethod::IS_PROTECTED) as $method)
		{
			if(!$proxyRefl->hasMethod($method->getName()))
			{
				$this->fail("Expected method '{$method->getName()}'");
			}
			
			if($proxyRefl->getMethod($method->getName())->getDeclaringClass()->getName() !== 'kwd\blog\virtualproxy\domain\SomeDomainTypeProxy')
			{
				$this->fail("Did not override method '{$method->getName()}'");
			}
		}
	}
	
	/**
	 * Assert that the proxy does not define public or protected methods of its own
	 */
	public function testDoesNotExposeOtherMethods()
	{
		$subjectRefl = new \ReflectionClass('kwd\blog\virtualproxy\domain\SomeDomainType');
		$proxyRefl = new \ReflectionClass('kwd\blog\virtualproxy\domain\SomeDomainTypeProxy');
		
		foreach($proxyRefl->getMethods(\ReflectionMethod::IS_PUBLIC | \ReflectionMethod::IS_PROTECTED) as $method)
		{
			if(!$subjectRefl->hasMethod($method->getName()))
			{
				$this->fail("Defined method '{$method->getName()}', which is not in subject class");
			}
		}
	}
	
	/**
	 * Assert that all requests are delegated to the loaded subject
	 */
	public function testDelegatesToSubjectWhenUsingInterface()
	{
		$proxy = new domain\SomeDomainTypeProxy();
		
		$subjectRefl = new \ReflectionClass('kwd\blog\virtualproxy\domain\SomeDomainType');
		$proxyRefl = new \ReflectionClass('kwd\blog\virtualproxy\domain\SomeDomainTypeProxy');
		
		$subject = $this->getMock('kwd\blog\virtualproxy\domain\SomeDomainType');
		
		$property = $proxyRefl->getProperty('_subject');
		$property->setAccessible(true);
		$property->setValue($proxy, $subject);
		
		$subject
			->expects($this->once())
			->method('doSomethingWithMoreState')
			->will($this->returnValue('mockedValue'));
			
		$this->assertSame('mockedValue', $proxy->doSomethingWithMoreState(new domain\SomeDomainType()));
	}
}