public function testChildExecutesSuccessfully()
{
$expected = 'execute called';
$this->command->setExecuteOutput($expected);
$this->setupStartFunctions(null);
$pcntl_signal = $this->getFunctionMock('\\Phlib\\ConsoleProcess\\Command', 'pcntl_signal');
$pcntl_signal->expects($this->any())->will($this->returnValue(true));
$this->tester->execute(['action' => 'start', '-p' => '/path/to/my.pid', '-d' => true]);
$this->assertContains("{$expected}\n", $this->tester->getDisplay());
}