FileManagedFileElementTest.php

<?php

namespace Drupal\Tests\file\FunctionalJavascript;

use Drupal\FunctionalJavascriptTests\WebDriverTestBase;

/**
 * Tests the 'managed_file' element type.
 *
 * @group file
 */
class FileManagedFileElementTest extends WebDriverTestBase {
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'node',
        'file',
        'file_module_test',
        'field_ui',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * A user with administration permissions.
     *
     * @var \Drupal\user\UserInterface
     */
    protected $adminUser;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->adminUser = $this->drupalCreateUser([
            'access content',
            'access administration pages',
            'administer site configuration',
            'administer users',
            'administer permissions',
            'administer content types',
            'administer node fields',
            'administer node display',
            'administer nodes',
            'bypass node access',
        ]);
        $this->drupalLogin($this->adminUser);
        $this->drupalCreateContentType([
            'type' => 'article',
            'name' => 'Article',
        ]);
    }
    
    /**
     * Tests the managed_file element type.
     */
    public function testManagedFile() {
        // Perform the tests with all permutations of $form['#tree'],
        // $element['#extended'], and $element['#multiple'].
        $filename = \Drupal::service('file_system')->tempnam('temporary://', "testManagedFile") . '.txt';
        file_put_contents($filename, $this->randomString(128));
        foreach ([
            0,
            1,
        ] as $tree) {
            foreach ([
                0,
                1,
            ] as $extended) {
                foreach ([
                    0,
                    1,
                ] as $multiple) {
                    $path = 'file/test/' . $tree . '/' . $extended . '/' . $multiple;
                    $input_base_name = $tree ? 'nested_file' : 'file';
                    $file_field_name = $multiple ? 'files[' . $input_base_name . '][]' : 'files[' . $input_base_name . ']';
                    // Now, test the Upload and Remove buttons, with Ajax.
                    // Upload, then Submit.
                    $last_fid_prior = $this->getLastFileId();
                    $this->drupalGet($path);
                    $this->getSession()
                        ->getPage()
                        ->attachFileToField($file_field_name, $this->container
                        ->get('file_system')
                        ->realpath($filename));
                    $uploaded_file = $this->assertSession()
                        ->waitForElement('css', '.file--mime-text-plain');
                    $this->assertNotEmpty($uploaded_file);
                    $last_fid = $this->getLastFileId();
                    $this->assertGreaterThan($last_fid_prior, $last_fid, 'New file got uploaded.');
                    $this->submitForm([], 'Save');
                    // Remove, then Submit.
                    $remove_button_title = $multiple ? 'Remove selected' : 'Remove';
                    $this->drupalGet($path . '/' . $last_fid);
                    if ($multiple) {
                        $selected_checkbox = ($tree ? 'nested[file]' : 'file') . '[file_' . $last_fid . '][selected]';
                        $this->getSession()
                            ->getPage()
                            ->checkField($selected_checkbox);
                    }
                    $this->getSession()
                        ->getPage()
                        ->pressButton($remove_button_title);
                    $this->assertSession()
                        ->assertWaitOnAjaxRequest();
                    $this->submitForm([], 'Save');
                    $this->assertSession()
                        ->pageTextContains('The file ids are .');
                    // Upload, then Remove, then Submit.
                    $this->drupalGet($path);
                    $this->getSession()
                        ->getPage()
                        ->attachFileToField($file_field_name, $this->container
                        ->get('file_system')
                        ->realpath($filename));
                    $uploaded_file = $this->assertSession()
                        ->waitForElement('css', '.file--mime-text-plain');
                    $this->assertNotEmpty($uploaded_file);
                    if ($multiple) {
                        $selected_checkbox = ($tree ? 'nested[file]' : 'file') . '[file_' . $this->getLastFileId() . '][selected]';
                        $this->getSession()
                            ->getPage()
                            ->checkField($selected_checkbox);
                    }
                    $this->getSession()
                        ->getPage()
                        ->pressButton($remove_button_title);
                    $this->assertSession()
                        ->assertWaitOnAjaxRequest();
                    $this->submitForm([], 'Save');
                    $this->assertSession()
                        ->pageTextContains('The file ids are .');
                }
            }
        }
    }
    
    /**
     * Retrieves the fid of the last inserted file.
     */
    protected function getLastFileId() {
        return (int) \Drupal::entityQueryAggregate('file')->accessCheck(FALSE)
            ->aggregate('fid', 'max')
            ->execute()[0]['fid_max'];
    }

}