function FileDirectoryTest::testFileCreateNewFilepath in Drupal 7

This will take a directory and path, and find a valid filepath that is not taken by another file.

File

modules/simpletest/tests/file.test, line 1106

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

Class

FileDirectoryTest

Directory related tests.

Code

function testFileCreateNewFilepath() {

  // First we test against an imaginary file that does not exist in a
  // directory.
  $basename = 'xyz.txt';
  $directory = 'misc';
  $original = $directory . '/' . $basename;
  $path = file_create_filename($basename, $directory);
  $this
    ->assertEqual($path, $original, format_string('New filepath %new equals %original.', array(
    '%new' => $path,
    '%original' => $original,
  )), 'File');

  // Then we test against a file that already exists within that directory.
  $basename = 'druplicon.png';
  $original = $directory . '/' . $basename;
  $expected = $directory . '/druplicon_0.png';
  $path = file_create_filename($basename, $directory);
  $this
    ->assertEqual($path, $expected, format_string('Creating a new filepath from %original equals %new.', array(
    '%new' => $path,
    '%original' => $original,
  )), 'File');
  try {
    $filename = "";
    file_create_filename($filename, $directory);
    $this
      ->fail('Expected exception not thrown');
  } catch (RuntimeException $e) {
    $this
      ->assertEqual("Invalid filename '{$filename}'", $e
      ->getMessage(), 'The invalid filename has been detected and RuntimeException has been thrown.');
  }

  // @TODO: Finally we copy a file into a directory several times, to ensure a properly iterating filename suffix.
}