FileMoveTest.php

<?php

namespace Drupal\Tests\image\Functional;

use Drupal\Core\File\FileSystemInterface;
use Drupal\file\Entity\File;
use Drupal\image\Entity\ImageStyle;
use Drupal\Tests\BrowserTestBase;
use Drupal\Tests\TestFileCreationTrait;

/**
 * Tests the file move function for images and image styles.
 *
 * @group image
 */
class FileMoveTest extends BrowserTestBase {
    use TestFileCreationTrait {
        getTestFiles as drupalGetTestFiles;
        compareFiles as drupalCompareFiles;
    }
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    public static $modules = [
        'image',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Tests moving a randomly generated image.
     */
    public function testNormal() {
        // Pick a file for testing.
        $file = File::create((array) current($this->drupalGetTestFiles('image')));
        // Create derivative image.
        $styles = ImageStyle::loadMultiple();
        $style = reset($styles);
        $original_uri = $file->getFileUri();
        $derivative_uri = $style->buildUri($original_uri);
        $style->createDerivative($original_uri, $derivative_uri);
        // Check if derivative image exists.
        $this->assertFileExists($derivative_uri);
        // Clone the object so we don't have to worry about the function changing
        // our reference copy.
        $desired_filepath = 'public://' . $this->randomMachineName();
        $result = file_move(clone $file, $desired_filepath, FileSystemInterface::EXISTS_ERROR);
        // Check if image has been moved.
        $this->assertFileExists($result->getFileUri());
        // Check if derivative image has been flushed.
        $this->assertFileNotExists($derivative_uri);
    }

}