def test__run_skips_logging_if_no_servers_found(self):
logger = self.useFixture(TwistedLoggerFixture())
monitor = DHCPRequestMonitor("lo")
mock_send_and_await = self.patch(monitor,
"send_requests_and_await_replies")
mock_send_and_await.return_value = {}
yield monitor.run()
self.assertThat(mock_send_and_await, MockCallsMatch(call()))
self.assertThat(logger.output, DocTestMatches(""))
def test__run_logs_result_and_makes_properties_available(self):
logger = self.useFixture(TwistedLoggerFixture())
monitor = DHCPRequestMonitor('lo')
mock_send_and_await = self.patch(monitor,
'send_requests_and_await_replies')
mock_send_and_await.return_value = {
DHCPServer('127.0.0.1', '127.0.0.1'),
DHCPServer('127.1.1.1', '127.2.2.2'),
}
yield monitor.run()
self.assertThat(mock_send_and_await, MockCallsMatch(call()))
self.assertThat(
logger.output,
DocTestMatches(
"External DHCP server(s) discovered on interface 'lo': 127.0.0.1, "
"127.1.1.1 (via 127.2.2.2)"))
self.assertThat(monitor.dhcp_servers,
Equals({"127.0.0.1", "127.1.1.1"}))
self.assertThat(monitor.dhcp_addresses,
Equals({"127.0.0.1", "127.2.2.2"}))
