ViewHelperVariableContainerTest.php

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<?php
namespace TYPO3\CMS\Fluid\Tests\Unit\Core\ViewHelper;

/*                                                                        *
 * This script is backported from the TYPO3 Flow package "TYPO3.Fluid".   *
 *                                                                        *
 * It is free software; you can redistribute it and/or modify it under    *
 * the terms of the GNU Lesser General Public License, either version 3   *
 *  of the License, or (at your option) any later version.                *
 *                                                                        *
 * The TYPO3 project - inspiring people to share!                         *
 *                                                                        */

class ViewHelperVariableContainerTest extends \TYPO3\CMS\Core\Tests\UnitTestCase
{
    protected $viewHelperVariableContainer;

    protected function setUp()
    {
        $this->viewHelperVariableContainer = new \TYPO3\CMS\Fluid\Core\ViewHelper\ViewHelperVariableContainer();
    }

    public function storedDataCanBeReadOutAgain()
    {
        $variable = 'Hello world';
        $this->assertFalse($this->viewHelperVariableContainer->exists(\TYPO3\CMS\Fluid\ViewHelpers\TestViewHelper::class, 'test'));
        $this->viewHelperVariableContainer->add(\TYPO3\CMS\Fluid\ViewHelpers\TestViewHelper::class, 'test', $variable);
        $this->assertTrue($this->viewHelperVariableContainer->exists(\TYPO3\CMS\Fluid\ViewHelpers\TestViewHelper::class, 'test'));

        $this->assertEquals($variable, $this->viewHelperVariableContainer->get(\TYPO3\CMS\Fluid\ViewHelpers\TestViewHelper::class, 'test'));
    }

    public function gettingNonNonExistentValueThrowsException()
    {
        $this->viewHelperVariableContainer->get('TYPO3\\CMS\\Fluid\\ViewHelper\\NonExistent', 'nonExistentKey');
    }

    public function settingKeyWhichIsAlreadyStoredThrowsException()
    {
        $this->viewHelperVariableContainer->add('TYPO3\\CMS\\Fluid\\ViewHelper\\NonExistent', 'nonExistentKey', 'value1');
        $this->viewHelperVariableContainer->add('TYPO3\\CMS\\Fluid\\ViewHelper\\NonExistent', 'nonExistentKey', 'value2');
    }

    public function addOrUpdateWorks()
    {
        $this->viewHelperVariableContainer->add('TYPO3\\CMS\\Fluid\\ViewHelper\\NonExistent', 'nonExistentKey', 'value1');
        $this->viewHelperVariableContainer->addOrUpdate('TYPO3\\CMS\\Fluid\\ViewHelper\\NonExistent', 'nonExistentKey', 'value2');
        $this->assertEquals($this->viewHelperVariableContainer->get('TYPO3\\CMS\\Fluid\\ViewHelper\\NonExistent', 'nonExistentKey'), 'value2');
    }

    public function aSetValueCanBeRemovedAgain()
    {
        $this->viewHelperVariableContainer->add('TYPO3\\CMS\\Fluid\\ViewHelper\\NonExistent', 'nonExistentKey', 'value1');
        $this->viewHelperVariableContainer->remove('TYPO3\\CMS\\Fluid\\ViewHelper\\NonExistent', 'nonExistentKey');
        $this->assertFalse($this->viewHelperVariableContainer->exists('TYPO3\\CMS\\Fluid\\ViewHelper\\NonExistent', 'nonExistentKey'));
    }

    public function removingNonExistentKeyThrowsException()
    {
        $this->viewHelperVariableContainer->remove('TYPO3\\CMS\\Fluid\\ViewHelper\\NonExistent', 'nonExistentKey');
    }

    public function viewCanBeReadOutAgain()
    {
        $view = $this->getMock(\TYPO3\CMS\Fluid\View\AbstractTemplateView::class, array('getTemplateSource', 'getLayoutSource', 'getPartialSource', 'hasTemplate', 'canRender', 'getTemplateIdentifier', 'getLayoutIdentifier', 'getPartialIdentifier'));
        $this->viewHelperVariableContainer->setView($view);
        $this->assertSame($view, $this->viewHelperVariableContainer->getView());
    }


    public function existsReturnsFalseIfTheSpecifiedKeyDoesNotExist()
    {
        $this->assertFalse($this->viewHelperVariableContainer->exists('TYPO3\Fluid\ViewHelper\NonExistent', 'nonExistentKey'));
    }

    public function existsReturnsTrueIfTheSpecifiedKeyExists()
    {
        $this->viewHelperVariableContainer->add('TYPO3\Fluid\ViewHelper\NonExistent', 'someKey', 'someValue');
        $this->assertTrue($this->viewHelperVariableContainer->exists('TYPO3\Fluid\ViewHelper\NonExistent', 'someKey'));
    }

    public function existsReturnsTrueIfTheSpecifiedKeyExistsAndIsNull()
    {
        $this->viewHelperVariableContainer->add('TYPO3\Fluid\ViewHelper\NonExistent', 'someKey', null);
        $this->assertTrue($this->viewHelperVariableContainer->exists('TYPO3\Fluid\ViewHelper\NonExistent', 'someKey'));
    }
}