org\bovigo\vfs\vfsStreamUmaskTestCase::createDirectoryUsingStreamWithDefaultUmaskSetting PHP Method

    public function createDirectoryUsingStreamWithDefaultUmaskSetting()
    {
        $root = vfsStream::setup();
        mkdir(vfsStream::url('root/newdir'));
        $this->assertEquals(0777, $root->getChild('newdir')->getPermissions());
    }