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<?php
/**
 * HelperCollectionTest file
 *
 * CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
 * Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 *
 * Licensed under The MIT License
 * For full copyright and license information, please see the LICENSE.txt
 * Redistributions of files must retain the above copyright notice.
 *
 * @copyright     Copyright (c) Cake Software Foundation, Inc. (http://cakefoundation.org)
 * @link          http://book.cakephp.org/2.0/en/development/testing.html CakePHP(tm) Tests
 * @package       Cake.Test.Case.View
 * @since         CakePHP(tm) v 2.0
 * @license       http://www.opensource.org/licenses/mit-license.php MIT License
 */

App::uses('HelperCollection', 'View');
App::uses('HtmlHelper', 'View/Helper');
App::uses('View', 'View');

/**
 * Extended HtmlHelper
 */
class HtmlAliasHelper extends HtmlHelper {
}

/**
 * Class HelperCollectionTest
 *
 * @package       Cake.Test.Case.View
 */
class HelperCollectionTest extends CakeTestCase {

/**
 * setUp
 *
 * @return void
 */
        public function setUp() {
                parent::setUp();
                $this->View = $this->getMock('View', array(), array(null));
                $this->Helpers = new HelperCollection($this->View);
        }

/**
 * tearDown
 *
 * @return void
 */
        public function tearDown() {
                CakePlugin::unload();
                unset($this->Helpers, $this->View);
                parent::tearDown();
        }

/**
 * test triggering callbacks on loaded helpers
 *
 * @return void
 */
        public function testLoad() {
                $result = $this->Helpers->load('Html');
                $this->assertInstanceOf('HtmlHelper', $result);
                $this->assertInstanceOf('HtmlHelper', $this->Helpers->Html);

                $result = $this->Helpers->loaded();
                $this->assertEquals(array('Html'), $result, 'loaded() results are wrong.');

                $this->assertTrue($this->Helpers->enabled('Html'));
        }

/**
 * test lazy loading of helpers
 *
 * @return void
 */
        public function testLazyLoad() {
                $result = $this->Helpers->Html;
                $this->assertInstanceOf('HtmlHelper', $result);

                $result = $this->Helpers->Form;
                $this->assertInstanceOf('FormHelper', $result);

                App::build(array('Plugin' => array(CAKE . 'Test' . DS . 'test_app' . DS . 'Plugin' . DS)));
                $this->View->plugin = 'TestPlugin';
                CakePlugin::load(array('TestPlugin'));
                $result = $this->Helpers->OtherHelper;
                $this->assertInstanceOf('OtherHelperHelper', $result);
        }

/**
 * test lazy loading of helpers
 *
 * @expectedException MissingHelperException
 * @return void
 */
        public function testLazyLoadException() {
                $this->Helpers->NotAHelper;
        }

/**
 * Tests loading as an alias
 *
 * @return void
 */
        public function testLoadWithAlias() {
                $result = $this->Helpers->load('Html', array('className' => 'HtmlAlias'));
                $this->assertInstanceOf('HtmlAliasHelper', $result);
                $this->assertInstanceOf('HtmlAliasHelper', $this->Helpers->Html);

                $result = $this->Helpers->loaded();
                $this->assertEquals(array('Html'), $result, 'loaded() results are wrong.');

                $this->assertTrue($this->Helpers->enabled('Html'));

                $result = $this->Helpers->load('Html');
                $this->assertInstanceOf('HtmlAliasHelper', $result);

                App::build(array('Plugin' => array(CAKE . 'Test' . DS . 'test_app' . DS . 'Plugin' . DS)));
                CakePlugin::load(array('TestPlugin'));
                $result = $this->Helpers->load('SomeOther', array('className' => 'TestPlugin.OtherHelper'));
                $this->assertInstanceOf('OtherHelperHelper', $result);
                $this->assertInstanceOf('OtherHelperHelper', $this->Helpers->SomeOther);

                $result = $this->Helpers->loaded();
                $this->assertEquals(array('Html', 'SomeOther'), $result, 'loaded() results are wrong.');
                App::build();
        }

/**
 * test that the enabled setting disables the helper.
 *
 * @return void
 */
        public function testLoadWithEnabledFalse() {
                $result = $this->Helpers->load('Html', array('enabled' => false));
                $this->assertInstanceOf('HtmlHelper', $result);
                $this->assertInstanceOf('HtmlHelper', $this->Helpers->Html);

                $this->assertFalse($this->Helpers->enabled('Html'), 'Html should be disabled');
        }

/**
 * test missinghelper exception
 *
 * @expectedException MissingHelperException
 * @return void
 */
        public function testLoadMissingHelper() {
                $this->Helpers->load('ThisHelperShouldAlwaysBeMissing');
        }

/**
 * test loading a plugin helper.
 *
 * @return void
 */
        public function testLoadPluginHelper() {
                App::build(array(
                        'Plugin' => array(CAKE . 'Test' . DS . 'test_app' . DS . 'Plugin' . DS),
                ));
                CakePlugin::load(array('TestPlugin'));
                $result = $this->Helpers->load('TestPlugin.OtherHelper');
                $this->assertInstanceOf('OtherHelperHelper', $result, 'Helper class is wrong.');
                $this->assertInstanceOf('OtherHelperHelper', $this->Helpers->OtherHelper, 'Class is wrong');

                App::build();
        }

/**
 * test unload()
 *
 * @return void
 */
        public function testUnload() {
                $this->Helpers->load('Form');
                $this->Helpers->load('Html');

                $result = $this->Helpers->loaded();
                $this->assertEquals(array('Form', 'Html'), $result, 'loaded helpers is wrong');

                $this->Helpers->unload('Html');
                $this->assertNotContains('Html', $this->Helpers->loaded());
                $this->assertContains('Form', $this->Helpers->loaded());

                $result = $this->Helpers->loaded();
                $this->assertEquals(array('Form'), $result, 'loaded helpers is wrong');
        }

}