ConditionViewHelperTest.php

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<?php

/*                                                                        *
 * This script belongs to the FLOW3 package "Fluid".                      *
 *                                                                        *
 * It is free software; you can redistribute it and/or modify it under    *
 * the terms of the GNU Lesser General Public License as published by the *
 * Free Software Foundation, either version 3 of the License, or (at your *
 * option) any later version.                                             *
 *                                                                        *
 * This script is distributed in the hope that it will be useful, but     *
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHAN-    *
 * TABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser       *
 * General Public License for more details.                               *
 *                                                                        *
 * You should have received a copy of the GNU Lesser General Public       *
 * License along with the script.                                         *
 * If not, see http://www.gnu.org/licenses/lgpl.html                      *
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 * The TYPO3 project - inspiring people to share!                         *
 *                                                                        */

require_once(dirname(__FILE__) . '/../../ViewHelpers/ViewHelperBaseTestcase.php');

/**
 * Testcase for Condition ViewHelper
 *
 * @license http://www.gnu.org/licenses/lgpl.html GNU Lesser General Public License, version 3 or later
 */
class Tx_Fluid_Tests_Unit_Core_ViewHelper_AbstractConditionViewHelperTest extends Tx_Fluid_ViewHelpers_ViewHelperBaseTestcase {

    /**
     * var Tx_Fluid_Core_ViewHelper_AbstractConditionViewHelper
     */
    protected $viewHelper;

    /**
     * var Tx_Fluid_Core_ViewHelper_Arguments
     */
    protected $mockArguments;

    public function setUp() {
        parent::setUp();
        $this->viewHelper = $this->getAccessibleMock('Tx_Fluid_Core_ViewHelper_AbstractConditionViewHelper', array('getRenderingContext', 'renderChildren'));
        $this->viewHelper->expects($this->any())->method('getRenderingContext')->will($this->returnValue($this->renderingContext));
        $this->injectDependenciesIntoViewHelper($this->viewHelper);
    }

    /**
     * @test
     * @author Bastian Waidelich <bastian@typo3.org>
     * @author Sebastian Kurfürst <sebastian@typo3.org>
     */
    public function renderThenChildReturnsAllChildrenIfNoThenViewHelperChildExists() {
        $this->viewHelper->expects($this->at(0))->method('renderChildren')->will($this->returnValue('foo'));

        $actualResult = $this->viewHelper->_call('renderThenChild');
        $this->assertEquals('foo', $actualResult);
    }

    /**
     * @test
     * @author Bastian Waidelich <bastian@typo3.org>
     * @author Sebastian Kurfürst <sebastian@typo3.org>
     */
    public function renderThenChildReturnsThenViewHelperChildIfConditionIsTrueAndThenViewHelperChildExists() {
        $mockThenViewHelperNode = $this->getMock('Tx_Fluid_Core_Parser_SyntaxTree_ViewHelperNode', array('getViewHelperClassName', 'evaluate'), array(), '', FALSE);
        $mockThenViewHelperNode->expects($this->at(0))->method('getViewHelperClassName')->will($this->returnValue('Tx_Fluid_ViewHelpers_ThenViewHelper'));
        $mockThenViewHelperNode->expects($this->at(1))->method('evaluate')->with($this->renderingContext)->will($this->returnValue('ThenViewHelperResults'));

        $this->viewHelper->setChildNodes(array($mockThenViewHelperNode));
        $actualResult = $this->viewHelper->_call('renderThenChild');
        $this->assertEquals('ThenViewHelperResults', $actualResult);
    }

    /**
     * @test
     * @author Bastian Waidelich <bastian@typo3.org>
     */
    public function renderElseChildReturnsEmptyStringIfConditionIsFalseAndNoElseViewHelperChildExists() {
        $actualResult = $this->viewHelper->_call('renderElseChild');
        $this->assertEquals('', $actualResult);
    }

    /**
     * @test
     * @author Bastian Waidelich <bastian@typo3.org>
     */
    public function renderElseChildRendersElseViewHelperChildIfConditionIsFalseAndNoThenViewHelperChildExists() {
        $mockElseViewHelperNode = $this->getMock('Tx_Fluid_Core_Parser_SyntaxTree_ViewHelperNode', array('getViewHelperClassName', 'evaluate', 'setRenderingContext'), array(), '', FALSE);
        $mockElseViewHelperNode->expects($this->at(0))->method('getViewHelperClassName')->will($this->returnValue('Tx_Fluid_ViewHelpers_ElseViewHelper'));
        $mockElseViewHelperNode->expects($this->at(1))->method('evaluate')->with($this->renderingContext)->will($this->returnValue('ElseViewHelperResults'));

        $this->viewHelper->setChildNodes(array($mockElseViewHelperNode));
        $actualResult = $this->viewHelper->_call('renderElseChild');
        $this->assertEquals('ElseViewHelperResults', $actualResult);
    }

    /**
     * @test
     * @author Bastian Waidelich <bastian@typo3.org>
     */
    public function renderThenChildReturnsValueOfThenArgumentIfConditionIsTrue() {
        $this->arguments->expects($this->atLeastOnce())->method('hasArgument')->with('then')->will($this->returnValue(TRUE));
        $this->arguments->expects($this->atLeastOnce())->method('offsetGet')->with('then')->will($this->returnValue('ThenArgument'));

        $actualResult = $this->viewHelper->_call('renderThenChild');
        $this->assertEquals('ThenArgument', $actualResult);
    }

    /**
     * @test
     * @author Bastian Waidelich <bastian@typo3.org>
     */
    public function thenArgumentHasPriorityOverChildNodesIfConditionIsTrue() {
        $mockRenderingContext = $this->getMock('Tx_Fluid_Core_Rendering_RenderingContextInterface');

        $mockThenViewHelperNode = $this->getMock('Tx_Fluid_Core_Parser_SyntaxTree_ViewHelperNode', array('getViewHelperClassName', 'evaluate', 'setRenderingContext'), array(), '', FALSE);
        $mockThenViewHelperNode->expects($this->never())->method('evaluate');

        $this->viewHelper->setChildNodes(array($mockThenViewHelperNode));
        $this->viewHelper->setRenderingContext($mockRenderingContext);

        $this->arguments->expects($this->atLeastOnce())->method('hasArgument')->with('then')->will($this->returnValue(TRUE));
        $this->arguments->expects($this->atLeastOnce())->method('offsetGet')->with('then')->will($this->returnValue('ThenArgument'));

        $actualResult = $this->viewHelper->_call('renderThenChild');
        $this->assertEquals('ThenArgument', $actualResult);
    }

    /**
     * @test
     * @author Bastian Waidelich <bastian@typo3.org>
     */
    public function renderReturnsValueOfElseArgumentIfConditionIsFalse() {
        $this->arguments->expects($this->atLeastOnce())->method('hasArgument')->with('else')->will($this->returnValue(TRUE));
        $this->arguments->expects($this->atLeastOnce())->method('offsetGet')->with('else')->will($this->returnValue('ElseArgument'));

        $actualResult = $this->viewHelper->_call('renderElseChild');
        $this->assertEquals('ElseArgument', $actualResult);
    }

    /**
     * @test
     * @author Bastian Waidelich <bastian@typo3.org>
     */
    public function elseArgumentHasPriorityOverChildNodesIfConditionIsFalse() {
        $mockRenderingContext = $this->getMock('Tx_Fluid_Core_Rendering_RenderingContextInterface');

        $mockElseViewHelperNode = $this->getMock('Tx_Fluid_Core_Parser_SyntaxTree_ViewHelperNode', array('getViewHelperClassName', 'evaluate', 'setRenderingContext'), array(), '', FALSE);
        $mockElseViewHelperNode->expects($this->never())->method('evaluate');

        $this->viewHelper->setChildNodes(array($mockElseViewHelperNode));
        $this->viewHelper->setRenderingContext($mockRenderingContext);

        $this->arguments->expects($this->atLeastOnce())->method('hasArgument')->with('else')->will($this->returnValue(TRUE));
        $this->arguments->expects($this->atLeastOnce())->method('offsetGet')->with('else')->will($this->returnValue('ElseArgument'));

        $actualResult = $this->viewHelper->_call('renderElseChild');
        $this->assertEquals('ElseArgument', $actualResult);
    }

}

?>