yii2/tests/framework/base/ViewTest.php

<?php
/**
 * @link https://www.yiiframework.com/
 * @copyright Copyright (c) 2008 Yii Software LLC
 * @license https://www.yiiframework.com/license/
 */

namespace yiiunit\framework\base;

use Yii;
use yii\base\Theme;
use yii\base\View;
use yii\base\ViewEvent;
use yii\helpers\FileHelper;
use yiiunit\TestCase;

/**
 * @group base
 */
class ViewTest extends TestCase
{
    /**
     * @var string path for the test files.
     */
    protected $testViewPath = '';

    public function setUp(): void
    {
        parent::setUp();

        $this->mockApplication();
        $this->testViewPath = Yii::getAlias('@yiiunit/runtime') . DIRECTORY_SEPARATOR . str_replace('\\', '_', static::class) . uniqid();
        FileHelper::createDirectory($this->testViewPath);
    }

    public function tearDown(): void
    {
        FileHelper::removeDirectory($this->testViewPath);
        parent::tearDown();
    }

    /**
     * @see https://github.com/yiisoft/yii2/issues/13058
     */
    public function testExceptionOnRenderFile(): void
    {
        $view = new View();

        $exceptionViewFile = $this->testViewPath . DIRECTORY_SEPARATOR . 'exception.php';
        file_put_contents($exceptionViewFile, <<<'PHP'
<h1>Exception</h1>
<?php throw new Exception('Test Exception'); ?>
PHP
);
        $normalViewFile = $this->testViewPath . DIRECTORY_SEPARATOR . 'no-exception.php';
        file_put_contents($normalViewFile, <<<'PHP'
<h1>No Exception</h1>
PHP
        );

        $obInitialLevel = ob_get_level();

        try {
            $view->renderFile($exceptionViewFile);
        } catch (\Exception) {
            // shutdown exception
        }
        $view->renderFile($normalViewFile);

        $this->assertEquals($obInitialLevel, ob_get_level());
    }

    public function testRelativePathInView(): void
    {
        $view = new View();
        FileHelper::createDirectory($this->testViewPath . '/theme1');
        \Yii::setAlias('@testviews', $this->testViewPath);
        \Yii::setAlias('@theme', $this->testViewPath . '/theme1');

        $baseView = "{$this->testViewPath}/theme1/base.php";
        file_put_contents($baseView, <<<'PHP'
<?php
    echo $this->render("sub");
?>
PHP
        );

        $subView = "{$this->testViewPath}/sub.php";
        $subViewContent = "subviewcontent";
        file_put_contents($subView, $subViewContent);

        $view->theme = new Theme([
            'pathMap' => [
                '@testviews' => '@theme'
            ]
        ]);

        $this->assertSame($subViewContent, $view->render('@testviews/base'));
    }

    public function testAfterRender(): void
    {
        $view = new View();
        $filename = 'path/to/file';
        $params = ['search' => 'simple', 'replace' => 'new'];
        $output = 'This is a simple rendered output. (filename)';
        $expectedOutput = 'This is a new rendered output. (path/to/file)';

        $view->on(View::EVENT_AFTER_RENDER, function (ViewEvent $event): void {
            $event->output = str_replace($event->params['search'], $event->params['replace'], $event->output);
            $event->output = str_replace('filename', $event->viewFile, $event->output);
        });

        $view->afterRender($filename, $params, $output);

        $this->assertSame($expectedOutput, $output);
    }
}