FileMoveTest.php

<?php

namespace Drupal\KernelTests\Core\File;

use Drupal\Core\File\Exception\FileException;
use Drupal\Core\File\Exception\FileNotExistsException;
use Drupal\Core\File\FileSystemInterface;
use Drupal\Core\Site\Settings;
use Drupal\Core\File\FileSystem;

/**
 * Tests the unmanaged file move function.
 *
 * @group File
 */
class FileMoveTest extends FileTestBase {
    
    /**
     * Move a normal file.
     */
    public function testNormal() {
        // Create a file for testing
        $uri = $this->createUri();
        // Moving to a new name.
        $desired_filepath = 'public://' . $this->randomMachineName();
        
        /** @var \Drupal\Core\File\FileSystemInterface $file_system */
        $file_system = \Drupal::service('file_system');
        $new_filepath = $file_system->move($uri, $desired_filepath, FileSystemInterface::EXISTS_ERROR);
        $this->assertNotFalse($new_filepath, 'Move was successful.');
        $this->assertEquals($desired_filepath, $new_filepath, 'Returned expected filepath.');
        $this->assertFileExists($new_filepath);
        $this->assertFileDoesNotExist($uri);
        $this->assertFilePermissions($new_filepath, Settings::get('file_chmod_file', FileSystem::CHMOD_FILE));
        // Moving with rename.
        $desired_filepath = 'public://' . $this->randomMachineName();
        $this->assertFileExists($new_filepath);
        $this->assertNotFalse(file_put_contents($desired_filepath, ' '), 'Created a file so a rename will have to happen.');
        $newer_filepath = $file_system->move($new_filepath, $desired_filepath, FileSystemInterface::EXISTS_RENAME);
        $this->assertNotFalse($newer_filepath, 'Move was successful.');
        $this->assertNotEquals($desired_filepath, $newer_filepath, 'Returned expected filepath.');
        $this->assertFileExists($newer_filepath);
        $this->assertFileDoesNotExist($new_filepath);
        $this->assertFilePermissions($newer_filepath, Settings::get('file_chmod_file', FileSystem::CHMOD_FILE));
        // TODO: test moving to a directory (rather than full directory/file path)
        // TODO: test creating and moving normal files (rather than streams)
    }
    
    /**
     * Try to move a missing file.
     */
    public function testMissing() {
        // Move non-existent file.
        $this->expectException(FileNotExistsException::class);
        \Drupal::service('file_system')->move($this->randomMachineName(), $this->randomMachineName());
    }
    
    /**
     * Try to move a file onto itself.
     */
    public function testOverwriteSelf() {
        // Create a file for testing.
        $uri = $this->createUri();
        // Move the file onto itself without renaming shouldn't make changes.
        
        /** @var \Drupal\Core\File\FileSystemInterface $file_system */
        $file_system = \Drupal::service('file_system');
        $this->expectException(FileException::class);
        $new_filepath = $file_system->move($uri, $uri, FileSystemInterface::EXISTS_REPLACE);
        $this->assertFalse($new_filepath, 'Moving onto itself without renaming fails.');
        $this->assertFileExists($uri);
        // Move the file onto itself with renaming will result in a new filename.
        $new_filepath = $file_system->move($uri, $uri, FileSystemInterface::EXISTS_RENAME);
        $this->assertNotFalse($new_filepath, 'Moving onto itself with renaming works.');
        $this->assertFileDoesNotExist($uri);
        $this->assertFileExists($new_filepath);
    }

}