org\bovigo\vfs\vfsStreamWrapperFileTestCase::canOverwriteNonExistingFileWithModeX PHP Method

    public function canOverwriteNonExistingFileWithModeX()
    {
        $vfsFile = vfsStream::url('foo/overwrite.txt');
        $fp = fopen($vfsFile, 'xb');
        fwrite($fp, 'test');
        fclose($fp);
        $this->assertEquals('test', file_get_contents($vfsFile));
    }