class EntityCloneFileTest

class EntityCloneFileTest extends BrowserTestBase {
    use StringTranslationTrait;
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'entity_clone',
        'file',
    ];
    
    /**
     * Theme to enable by default.
     *
     * @var string
     */
    protected $defaultTheme = 'claro';
    
    /**
     * Permissions to grant admin user.
     *
     * @var array
     */
    protected $permissions = [
        'clone file entity',
    ];
    
    /**
     * An administrative user with permission to configure files settings.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $adminUser;
    
    /**
     * Sets the test up.
     */
    protected function setUp() : void {
        parent::setUp();
        $this->adminUser = $this->drupalCreateUser($this->permissions);
        $this->drupalLogin($this->adminUser);
    }
    
    /**
     * Test file entity clone.
     */
    public function testFileEntityClone() {
        
        /** @var \Drupal\file\FileInterface $file */
        $file = File::create([
            'uid' => 1,
            'filename' => 'druplicon.txt',
            'uri' => 'public://druplicon.txt',
            'filemime' => 'text/plain',
            'status' => FileInterface::STATUS_PERMANENT,
        ]);
        file_put_contents($file->getFileUri(), 'hello world');
        $file->save();
        $this->drupalGet('entity_clone/file/' . $file->id());
        $this->submitForm([], $this->t('Clone'));
        $files = \Drupal::entityTypeManager()->getStorage('file')
            ->loadByProperties([
            'filename' => 'druplicon.txt - Cloned',
        ]);
        $file = reset($files);
        $this->assertInstanceOf(File::class, $file, 'Test file cloned found in database.');
        $this->assertEquals($file->getFileUri(), 'public://druplicon_0.txt', 'The stored file is also cloned.');
    }

}