public function FileFieldWidgetTest::testSingleValuedWidget in Drupal 8

Same name in this branch

1. 8 core/modules/file/tests/src/Functional/FileFieldWidgetTest.php \Drupal\Tests\file\Functional\FileFieldWidgetTest::testSingleValuedWidget()
2. 8 core/modules/file/tests/src/FunctionalJavascript/FileFieldWidgetTest.php \Drupal\Tests\file\FunctionalJavascript\FileFieldWidgetTest::testSingleValuedWidget()

Same name and namespace in other branches

1. 9 core/modules/file/tests/src/Functional/FileFieldWidgetTest.php \Drupal\Tests\file\Functional\FileFieldWidgetTest::testSingleValuedWidget()

Tests upload and remove buttons for a single-valued File field.

File

core/modules/file/tests/src/Functional/FileFieldWidgetTest.php, line 79

Class

FileFieldWidgetTest

Tests the file field widget with public and private files.

Namespace

Drupal\Tests\file\Functional

Code

public function testSingleValuedWidget() {
  $node_storage = $this->container
    ->get('entity_type.manager')
    ->getStorage('node');
  $type_name = 'article';
  $field_name = strtolower($this
    ->randomMachineName());
  $this
    ->createFileField($field_name, 'node', $type_name);
  $test_file = $this
    ->getTestFile('text');

  // Create a new node with the uploaded file and ensure it got uploaded
  // successfully.
  $nid = $this
    ->uploadNodeFile($test_file, $field_name, $type_name);
  $node = $node_storage
    ->loadUnchanged($nid);
  $node_file = File::load($node->{$field_name}->target_id);
  $this
    ->assertFileExists($node_file
    ->getFileUri());

  // Ensure the file can be downloaded.
  $this
    ->drupalGet($node_file
    ->createFileUrl());
  $this
    ->assertSession()
    ->statusCodeEquals(200);

  // Ensure the edit page has a remove button instead of an upload button.
  $this
    ->drupalGet("node/{$nid}/edit");
  $this
    ->assertNoFieldByXPath('//input[@type="submit"]', t('Upload'), 'Node with file does not display the "Upload" button.');
  $this
    ->assertFieldByXpath('//input[@type="submit"]', t('Remove'), 'Node with file displays the "Remove" button.');
  $this
    ->drupalPostForm(NULL, [], t('Remove'));

  // Ensure the page now has an upload button instead of a remove button.
  $this
    ->assertNoFieldByXPath('//input[@type="submit"]', t('Remove'), 'After clicking the "Remove" button, it is no longer displayed.');
  $this
    ->assertFieldByXpath('//input[@type="submit"]', t('Upload'), 'After clicking the "Remove" button, the "Upload" button is displayed.');

  // Test label has correct 'for' attribute.
  $input = $this
    ->xpath('//input[@name="files[' . $field_name . '_0]"]');
  $label = $this
    ->xpath('//label[@for="' . $input[0]
    ->getAttribute('id') . '"]');
  $this
    ->assertTrue(isset($label[0]), 'Label for upload found.');

  // Save the node and ensure it does not have the file.
  $this
    ->drupalPostForm(NULL, [], t('Save'));
  $node = $node_storage
    ->loadUnchanged($nid);
  $this
    ->assertTrue(empty($node->{$field_name}->target_id), 'File was successfully removed from the node.');
}