public function ScanDirectoryTest::testOptionCallback in Drupal 9

Same name and namespace in other branches

1. 8 core/tests/Drupal/KernelTests/Core/File/ScanDirectoryTest.php \Drupal\KernelTests\Core\File\ScanDirectoryTest::testOptionCallback()

Check that the callback function is called correctly.

@covers ::scanDirectory

File

core/tests/Drupal/KernelTests/Core/File/ScanDirectoryTest.php, line 78

Class

ScanDirectoryTest

Tests \Drupal\Core\File\FileSystem::scanDirectory.

Namespace

Drupal\KernelTests\Core\File

Code

public function testOptionCallback() {

  // When nothing is matched nothing should be passed to the callback.
  $all_files = $this->fileSystem
    ->scanDirectory($this->path, '/^NONEXISTINGFILENAME/', [
    'callback' => 'file_test_file_scan_callback',
  ]);
  $this
    ->assertCount(0, $all_files, 'No files were found.');
  $results = file_test_file_scan_callback();
  file_test_file_scan_callback_reset();
  $this
    ->assertCount(0, $results, 'No files were passed to the callback.');

  // Grab a listing of all the JavaScript files and check that they're
  // passed to the callback.
  $all_files = $this->fileSystem
    ->scanDirectory($this->path, '/^javascript-/', [
    'callback' => 'file_test_file_scan_callback',
  ]);
  $this
    ->assertCount(2, $all_files, 'Found two, expected javascript files.');
  $results = file_test_file_scan_callback();
  file_test_file_scan_callback_reset();
  $this
    ->assertCount(2, $results, 'Files were passed to the callback.');
}