RenderChildrenViewHelperTest.php

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<?php
namespace TYPO3\CMS\Fluid\Tests\Unit\ViewHelpers;

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class RenderChildrenViewHelperTest extends \TYPO3\CMS\Fluid\Tests\Unit\ViewHelpers\ViewHelperBaseTestcase
{
    protected $viewHelper;

    protected function setUp()
    {
        $this->controllerContext = $this->getMock(\TYPO3\CMS\Extbase\Mvc\Controller\ControllerContext::class, [], [], '', false);
        $this->viewHelper = $this->getAccessibleMock(\TYPO3\CMS\Fluid\ViewHelpers\RenderChildrenViewHelper::class, ['renderChildren']);
        $this->viewHelper->_set('controllerContext', $this->controllerContext);
    }

    public function renderCallsEvaluateOnTheRootNodeAndRegistersTheArguments()
    {
        $this->request = $this->getMock(\TYPO3\CMS\Fluid\Core\Widget\WidgetRequest::class);
        $this->controllerContext->expects($this->any())->method('getRequest')->will($this->returnValue($this->request));
        $this->viewHelper->initializeArguments();
        $templateVariableContainer = $this->getMock(\TYPO3\CMS\Fluid\Core\ViewHelper\TemplateVariableContainer::class);
        $templateVariableContainer->expects($this->at(0))->method('add')->with('k1', 'v1');
        $templateVariableContainer->expects($this->at(1))->method('add')->with('k2', 'v2');
        $templateVariableContainer->expects($this->at(2))->method('remove')->with('k1');
        $templateVariableContainer->expects($this->at(3))->method('remove')->with('k2');
        $renderingContext = $this->getMock(\TYPO3\CMS\Fluid\Core\Rendering\RenderingContextInterface::class);
        $renderingContext->expects($this->any())->method('getTemplateVariableContainer')->will($this->returnValue($templateVariableContainer));
        $rootNode = $this->getMock(\TYPO3\CMS\Fluid\Core\Parser\SyntaxTree\RootNode::class);
        $widgetContext = $this->getMock(\TYPO3\CMS\Fluid\Core\Widget\WidgetContext::class);
        $this->request->expects($this->any())->method('getWidgetContext')->will($this->returnValue($widgetContext));
        $widgetContext->expects($this->any())->method('getViewHelperChildNodeRenderingContext')->will($this->returnValue($renderingContext));
        $widgetContext->expects($this->any())->method('getViewHelperChildNodes')->will($this->returnValue($rootNode));
        $rootNode->expects($this->any())->method('evaluate')->with($renderingContext)->will($this->returnValue('Rendered Results'));
        $output = $this->viewHelper->render(['k1' => 'v1', 'k2' => 'v2']);
        $this->assertEquals('Rendered Results', $output);
    }

    public function renderThrowsExceptionIfTheRequestIsNotAWidgetRequest()
    {
        $this->request = $this->getMock('Tx_Fluid_MVC_Request');
        $this->controllerContext->expects($this->any())->method('getRequest')->will($this->returnValue($this->request));
        $this->viewHelper->initializeArguments();
        $this->viewHelper->render();
    }

    public function renderThrowsExceptionIfTheChildNodeRenderingContextIsNotThere()
    {
        $this->request = $this->getMock(\TYPO3\CMS\Fluid\Core\Widget\WidgetRequest::class);
        $this->controllerContext->expects($this->any())->method('getRequest')->will($this->returnValue($this->request));
        $this->viewHelper->initializeArguments();
        $widgetContext = $this->getMock(\TYPO3\CMS\Fluid\Core\Widget\WidgetContext::class);
        $this->request->expects($this->any())->method('getWidgetContext')->will($this->returnValue($widgetContext));
        $widgetContext->expects($this->any())->method('getViewHelperChildNodeRenderingContext')->will($this->returnValue(null));
        $widgetContext->expects($this->any())->method('getViewHelperChildNodes')->will($this->returnValue(null));
        $this->viewHelper->render();
    }
}