Try deleting a directory with some files.

File

drupal-7.x/modules/simpletest/tests/file.test, line 1287

This provides SimpleTests for the core file handling functionality. These include FileValidateTest and FileSaveTest.

Class

FileUnmanagedDeleteRecursiveTest

Deletion related tests.

Code

function testDirectory() {
  // A directory to operate on.
  $directory = $this->createDirectory();
  $filepathA = $directory . '/A';
  $filepathB = $directory . '/B';
  file_put_contents($filepathA, '');
  file_put_contents($filepathB, '');

  // Delete the directory.
  $this->assertTrue(file_unmanaged_delete_recursive($directory), 'Function reported success.');
  $this->assertFalse(file_exists($filepathA), 'Test file A has been deleted.');
  $this->assertFalse(file_exists($filepathB), 'Test file B has been deleted.');
  $this->assertFalse(file_exists($directory), 'Directory has been deleted.');
}