public function FileTestBase::assertFilePermissions

Helper function to test the permissions of a file.

Parameters

$filepath: String file path.

$expected_mode: Octal integer like 0664 or 0777.

$message: Optional message.

File

core/tests/Drupal/KernelTests/Core/File/FileTestBase.php, line 91

Class

FileTestBase

Provides file-specific assertions and helper functions.

Namespace

Code

public function assertFilePermissions($filepath, $expected_mode, $message = NULL) {

  // Clear out PHP's file stat cache to be sure we see the current value.
  clearstatcache(TRUE, $filepath);

  // Mask out all but the last three octets.
  $actual_mode = fileperms($filepath) & 0777;

  // PHP on Windows has limited support for file permissions. Usually each of
  // "user", "group" and "other" use one octal digit (3 bits) to represent the
  // read/write/execute bits. On Windows, chmod() ignores the "group" and
  // "other" bits, and fileperms() returns the "user" bits in all three
  // positions. $expected_mode is updated to reflect this.
  if (str_starts_with(PHP_OS, 'WIN')) {

    // Reset the "group" and "other" bits.
    $expected_mode = $expected_mode & 0700;

    // Shift the "user" bits to the "group" and "other" positions also.
    $expected_mode = $expected_mode | $expected_mode >> 3 | $expected_mode >> 6;
  }
  if (!isset($message)) {
    $message = sprintf('Expected file permission to be %s, actually were %s.', decoct($actual_mode), decoct($expected_mode));
  }
  $this
    ->assertEquals($expected_mode, $actual_mode, $message);
}