public function testLog()
{
$result = $this->createResult(null, ' --store');
$uuid = $result->evaluate('string(./suite/@uuid)');
$process = $this->phpbench('delete --uuid=' . $uuid);
$this->assertEquals(0, $process->getExitCode());
// should throw an exception because the UUID does not exist.
$process = $this->phpbench('delete --uuid=' . $uuid);
$this->assertEquals(1, $process->getExitCode());
}