'Should emit start message to stderr.'

def test_emits_start_message_to_stderr(self):

    instance = self.test_instance
    current_pid = self.scenario['pid']
    expect_stderr = ('                                                started    with    pid    %(current_pid)d\n                                                ' % vars())
    instance.do_action()
    self.failUnlessOutputCheckerMatch(expect_stderr, self.mock_stderr.getvalue())
