/**
  * Test creating a directory with specific permissions.
  *
  * @since 0.1.0
  */
 public function test_mkdir_mode()
 {
     $this->assertTrue($this->fs->mkdir('/test', 0777, 'test-user', 'test-group'));
     $this->assertTrue($this->fs->exists('/test'));
     $this->assertTrue($this->fs->is_dir('/test'));
     $this->assertEquals(0777, $this->fs->getchmod('/test'));
     $this->assertEquals('test-group', $this->fs->group('/test'));
     $this->assertEquals('test-user', $this->fs->owner('/test'));
 }