public function testDelete()
{
$site_name = 'my-site';
$this->site->expects($this->once())->method('delete')->with();
$this->logger->expects($this->once())->method('log')->with($this->equalTo('notice'), $this->equalTo('Deleted {site} from Pantheon'), $this->equalTo(['site' => $site_name]));
$out = $this->command->delete($site_name);
$this->assertNull($out);
}