org\bovigo\vfs\vfsStreamWrapperFileTestCase::canNotReadFromWriteOnlyFileWithModeX PHP Метод

    public function canNotReadFromWriteOnlyFileWithModeX()
    {
        $vfsFile = vfsStream::url('foo/modeXtest.txt');
        $fp = fopen($vfsFile, 'xb');
        $this->assertEquals('', fread($fp, 4096));
        $this->assertEquals(3, fwrite($fp, 'foo'));
        fseek($fp, 0);
        $this->assertEquals('', fread($fp, 4096));
        fclose($fp);
        $this->assertEquals('foo', file_get_contents($vfsFile));
    }