public function testCommandBadGui()
{
$process = $this->phpbench('xdebug:profile benchmarks/set1/BenchmarkBench.php --gui --gui-bin=idontexistdotcom1234');
$this->assertContains('Could not locate GUI bin "idontexistdotcom1234"', $process->getErrorOutput());
$this->assertExitCode(1, $process);
}