public function testColumnsOnErrorOutput()
{
$command = new MockCommand(array('request' => $this->request));
$expected = "data1\t\ndata2\t\n";
$command->columns(array('col1' => 'data1', 'col2' => 'data2'), array('error' => true));
$result = $command->response->error;
$this->assertEqual($expected, $result);
}
