def _get_poe_powerunit_info(self, device_hostname):
        """Get the power management unit information for a POE controller.

        Servo is managed by POE. The related information we need to know
        include poe hostname, poe interface. Such information is
        stored in a local file and read into memory.

        @param device_hostname: A string representing the device's hostname.

        @returns: A PowerUnitInfo object.
        @raises RPMInfrastructureException if failed to get the power
                unit info.

        """
        with self._lock:
            reload_info = utils.reload_servo_interface_mapping_if_necessary(
                self._mapping_last_modified)
            if reload_info:
                self._mapping_last_modified, self._servo_interface = reload_info
            switch_if_tuple = self._servo_interface.get(device_hostname)
            if not switch_if_tuple:
                raise RPMInfrastructureException(
                    'Could not determine POE hostname for %s. '
                    'Please check the servo-interface mapping file.',
                    device_hostname)
            else:
                return utils.PowerUnitInfo(
                    device_hostname=device_hostname,
                    powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.POE,
                    powerunit_hostname=switch_if_tuple[0],
                    outlet=switch_if_tuple[1],
                    hydra_hostname=None)
    def set_power_via_rpm(self, device_hostname, rpm_hostname, rpm_outlet,
                          hydra_hostname, new_state):
        """Sets power state of a device to the requested state via RPM.

        Unlike the special case of POE, powerunit information is not available
        on the RPM server, so must be provided as arguments.

        @param device_hostname: Hostname of the servo to control.
        @param rpm_hostname: Hostname of the RPM to use.
        @param rpm_outlet: The RPM outlet to control.
        @param hydra_hostname: If required, the hydra device to SSH through to
                               get to the RPM.
        @param new_state: [ON, OFF, CYCLE] State to which we want to set the
                          device's outlet to.

        @return: True if the attempt to change power state was successful,
                 False otherwise.

        @raise RPMInfrastructureException: No dispatchers are available or can
                                           be reached.
        """
        powerunit_info = utils.PowerUnitInfo(
            device_hostname=device_hostname,
            powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.RPM,
            powerunit_hostname=rpm_hostname,
            outlet=rpm_outlet,
            hydra_hostname=hydra_hostname,
        )
        try:
            return self._queue_once(powerunit_info, new_state)
        except DispatcherDownException:
            # Retry forwarding the request.
            return self.set_power_via_rpm(device_hostname, rpm_hostname,
                                          rpm_outlet, hydra_hostname,
                                          new_state)
Пример #3
0
def test_parrallel_sshrequests():
    """Simple integration testing."""
    rpm = rpm_controller.SentryRPMController('chromeos-rack8-rpm1')
    info_1 = utils.PowerUnitInfo(
        device_hostname='chromeos-rack8-hostbs1',
        powerunit_hostname='chromeos-rack8-rpm1',
        powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.RPM,
        hydra_hostname=None,
        outlet='.A14')
    info_2 = utils.PowerUnitInfo(
        device_hostname='chromeos-rack8-hostbs2',
        powerunit_hostname='chromeos-rack8-rpm1',
        powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.RPM,
        hydra_hostname=None,
        outlet='.A11')
    threading.Thread(target=rpm.queue_request, args=(info_1, 'CYCLE')).start()
    threading.Thread(target=rpm.queue_request, args=(info_2, 'CYCLE')).start()
Пример #4
0
def test_in_order_poerequests():
    """Simple integration testing for poe controller."""
    poe_controller = rpm_controller.CiscoPOEController('chromeos1-poe-switch1')
    info_1 = utils.PowerUnitInfo(
        device_hostname='chromeos1-rack4-host1bs-servo',
        powerunit_hostname='chromeos1-poe-switch1',
        powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.RPM,
        hydra_hostname=None,
        outlet='fa33')
    info_2 = utils.PowerUnitInfo(
        device_hostname='chromeos1-rack4-host2bs-servo',
        powerunit_hostname='chromeos1-poe-switch1',
        powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.RPM,
        hydra_hostname=None,
        outlet='fa34')
    poe_controller.queue_request(info_1, 'OFF')
    poe_controller.queue_request(info_1, 'ON')
    poe_controller.queue_request(info_2, 'CYCLE')
    def _get_powerunit_info(self, device_hostname):
        """Get the power management unit information for a device.

        A device could be a chromeos dut or a servo.
        1) ChromeOS dut
        Chromeos dut is managed by RPM. The related information
        we need to know include rpm hostname, rpm outlet, hydra hostname.
        Such information can be retrieved from afe_host_attributes table
        from afe. A local LRU cache is used avoid hitting afe too often.

        2) Servo
        Servo is managed by POE. The related information we need to know
        include poe hostname, poe interface. Such information is
        stored in a local file and read into memory.

        @param device_hostname: A string representing the device's hostname.

        @returns: A PowerUnitInfo object.
        @raises RPMInfrastructureException if failed to get the power
                unit info.

        """
        with self._lock:
            if device_hostname.endswith('servo'):
                # Servos are managed by Cisco POE switches.
                reload_info = utils.reload_servo_interface_mapping_if_necessary(
                    self._mapping_last_modified)
                if reload_info:
                    self._mapping_last_modified, self._servo_interface = reload_info
                switch_if_tuple = self._servo_interface.get(device_hostname)
                if not switch_if_tuple:
                    raise RPMInfrastructureException(
                        'Could not determine POE hostname for %s. '
                        'Please check the servo-interface mapping file.',
                        device_hostname)
                else:
                    return utils.PowerUnitInfo(
                        device_hostname=device_hostname,
                        powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.POE,
                        powerunit_hostname=switch_if_tuple[0],
                        outlet=switch_if_tuple[1],
                        hydra_hostname=None)
            else:
                # Regular DUTs are managed by RPMs.
                if device_hostname in self._rpm_info:
                    return self._rpm_info[device_hostname]
                else:
                    hosts = self._afe.get_hosts(hostname=device_hostname)
                    if not hosts:
                        raise RPMInfrastructureException(
                            'Can not retrieve rpm information '
                            'from AFE for %s, no host found.' %
                            device_hostname)
                    else:
                        info = utils.PowerUnitInfo.get_powerunit_info(hosts[0])
                        self._rpm_info[device_hostname] = info
                        return info
Пример #6
0
 def setUp(self):
     super(TestRPMControllerQueue, self).setUp()
     self.rpm = rpm_controller.SentryRPMController('chromeos-rack1-host8')
     self.powerunit_info = utils.PowerUnitInfo(
         device_hostname='chromos-rack1-host8',
         powerunit_hostname='chromeos-rack1-rpm1',
         powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.RPM,
         outlet='.A100',
         hydra_hostname=None)
Пример #7
0
def test_parrallel_poerequests():
    """Simple integration testing for poe controller."""
    poe_controller = rpm_controller.CiscoPOEController('chromeos1-poe-switch1')
    info_1 = utils.PowerUnitInfo(
        device_hostname='chromeos1-rack4-host1bs-servo',
        powerunit_hostname='chromeos1-poe-switch1',
        powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.RPM,
        hydra_hostname=None,
        outlet='fa33')
    info_2 = utils.PowerUnitInfo(
        device_hostname='chromeos1-rack4-host2bs-servo',
        powerunit_hostname='chromeos1-poe-switch1',
        powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.RPM,
        hydra_hostname=None,
        outlet='fa34')
    threading.Thread(target=poe_controller.queue_request,
                     args=(info_1, 'CYCLE')).start()
    threading.Thread(target=poe_controller.queue_request,
                     args=(info_2, 'CYCLE')).start()
Пример #8
0
 def setUp(self):
     super(TestSentryRPMController, self).setUp()
     self.ssh = self.mox.CreateMockAnything()
     rpm_controller.pexpect.spawn = self.mox.CreateMockAnything()
     rpm_controller.pexpect.spawn(mox.IgnoreArg()).AndReturn(self.ssh)
     self.rpm = rpm_controller.SentryRPMController('chromeos-rack1-host8')
     self.powerunit_info = utils.PowerUnitInfo(
         device_hostname='chromos-rack1-host8',
         powerunit_hostname='chromeos-rack1-rpm1',
         powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.RPM,
         outlet='.A100',
         hydra_hostname=None)
Пример #9
0
 def setUp(self):
     super(TestFrontendServer, self).setUp()
     self.frontend = frontend_server.RPMFrontendServer()
     self.frontend._rpm_info[DUT_HOSTNAME] = utils.PowerUnitInfo(
             device_hostname=DUT_HOSTNAME,
             powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.RPM,
             powerunit_hostname=POWERUNIT_HOSTNAME,
             outlet=OUTLET, hydra_hostname=None)
     self.xmlrpc_mock = self.mox.CreateMockAnything()
     frontend_server.xmlrpclib.ServerProxy = self.mox.CreateMockAnything()
     frontend_server.xmlrpclib.ServerProxy(FAKE_DISPATCHER_URI1,
             allow_none=True).AndReturn(self.xmlrpc_mock)
Пример #10
0
def test_in_order_requests():
    """Simple integration testing."""
    rpm = rpm_controller.WebPoweredRPMController('chromeos-rack8e-rpm1')
    info_1 = utils.PowerUnitInfo(
        device_hostname='chromeos1-rack8e-hostbs1',
        powerunit_hostname='chromeos-rack8e-rpm1',
        powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.RPM,
        hydra_hostname=None,
        outlet='')
    info_2 = utils.PowerUnitInfo(
        device_hostname='chromeos1-rack8e-hostbs2',
        powerunit_hostname='chromeos-rack8e-rpm1',
        powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.RPM,
        hydra_hostname=None,
        outlet='')
    info_3 = utils.PowerUnitInfo(
        device_hostname='chromeos1-rack8e-hostbs3',
        powerunit_hostname='chromeos-rack8e-rpm1',
        powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.RPM,
        hydra_hostname=None,
        outlet='')
    rpm.queue_request(info_1, 'OFF')
    rpm.queue_request(info_2, 'OFF')
    rpm.queue_request(info_3, 'CYCLE')
Пример #11
0
 def setUp(self):
     super(TestWebPoweredRPMController, self).setUp()
     self.dli_ps = self.mox.CreateMock(dli.powerswitch)
     hostname = 'chromeos-rack8a-rpm1'
     self.web_rpm = rpm_controller.WebPoweredRPMController(
         hostname, self.dli_ps)
     outlet = 8
     dut = 'chromeos-rack8a-host8'
     # Outlet statuses are in the format "u'ON'"
     initial_state = 'u\'ON\''
     self.test_status_list_initial = [[outlet, dut, initial_state]]
     self.powerunit_info = utils.PowerUnitInfo(
         device_hostname=dut,
         powerunit_hostname=hostname,
         powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.RPM,
         outlet=outlet,
         hydra_hostname=None)
Пример #12
0
    def queue_request(self, powerunit_info_dict, new_state):
        """
        Looks up the appropriate RPMController instance for the device and queues
        up the request.

        @param powerunit_info_dict: A dictionary, containing the attribute/values
                                    of an unmarshalled PowerUnitInfo instance.
        @param new_state: [ON, OFF, CYCLE] state we want to the change the
                          outlet to.
        @return: True if the attempt to change power state was successful,
                 False otherwise.
        """
        powerunit_info = utils.PowerUnitInfo(**powerunit_info_dict)
        logging.info('Received request to set device: %s to state: %s',
                     powerunit_info.device_hostname, new_state)
        rpm_controller = self._get_rpm_controller(
            powerunit_info.powerunit_hostname, powerunit_info.hydra_hostname)
        return rpm_controller.queue_request(powerunit_info, new_state)
Пример #13
0
class TestCiscoPOEController(mox.MoxTestBase):
    """Test CiscoPOEController."""

    DEVICE = 'chromeos2-poe-sw8#'
    MATCHER = 'Port\\s+.*%s(\\s+(\\S+)){6,6}.*%s'
    PORT = 'fa32'
    PWD = 'Password:'******'chromeos1-rack3-host12-servo'
    SWITCH = 'chromeos2-poe-switch8'
    POWERUNIT_INFO = utils.PowerUnitInfo(
        device_hostname=PORT,
        powerunit_hostname=SERVO,
        powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.POE,
        outlet=PORT,
        hydra_hostname=None)

    def testLogin(self):
        """Test we can log into the switch."""
        rpm_controller.pexpect.spawn = self.mox.CreateMockAnything()
        mock_ssh = self.mox.CreateMockAnything()
        rpm_controller.pexpect.spawn(mox.IgnoreArg()).AndReturn(mock_ssh)
        sut = rpm_controller.CiscoPOEController(self.SWITCH)
        mock_ssh.expect(sut.POE_USERNAME_PROMPT, timeout=sut.LOGIN_TIMEOUT)
        mock_ssh.sendline(mox.IgnoreArg())
        mock_ssh.expect(self.PWD, timeout=sut.LOGIN_TIMEOUT)
        mock_ssh.sendline(mox.IgnoreArg())
        mock_ssh.expect(self.DEVICE, timeout=sut.LOGIN_TIMEOUT)
        self.mox.ReplayAll()
        self.assertIsNotNone(sut._login())
        self.mox.VerifyAll()

    def testSuccessfullyChangePowerState(self):
        """Should return True if change was successful."""
        sut = rpm_controller.CiscoPOEController(self.SWITCH)
        mock_ssh = self.mox.CreateMockAnything()
        self.mox.StubOutWithMock(sut, '_login')
        sut._login().AndReturn(mock_ssh)
        self.mox.StubOutWithMock(sut, '_verify_state')
        sut._verify_state(self.PORT, 'ON', mock_ssh).AndReturn(True)
        # _enter_configuration_terminal
        mock_ssh.sendline(sut.CONFIG)
        mock_ssh.expect(sut.config_prompt, timeout=sut.CMD_TIMEOUT)
        mock_ssh.sendline(sut.CONFIG_IF % self.PORT)
        mock_ssh.expect(sut.config_if_prompt, timeout=sut.CMD_TIMEOUT)
        # _change_state
        mock_ssh.sendline(sut.SET_STATE_ON)
        # _exit_configuration_terminal
        mock_ssh.sendline(sut.END_CMD)
        mock_ssh.expect(sut.poe_prompt, timeout=sut.CMD_TIMEOUT)
        # exit
        mock_ssh.sendline(sut.EXIT_CMD)
        mock_ssh.close(force=True)
        self.mox.ReplayAll()
        self.assertTrue(sut.set_power_state(self.POWERUNIT_INFO, 'ON'))
        self.mox.VerifyAll()

    def testUnableToEnterConfigurationTerminal(self):
        """Should return False if unable to enter configuration terminal."""
        exception = pexpect.TIMEOUT('Could not enter configuration terminal.')
        sut = rpm_controller.CiscoPOEController(self.SWITCH)
        timeout = sut.CMD_TIMEOUT
        mock_ssh = self.mox.CreateMockAnything()
        self.mox.StubOutWithMock(sut, '_login')
        sut._login().AndReturn(mock_ssh)
        mock_ssh.sendline(sut.CONFIG)
        mock_ssh.expect(sut.config_prompt, timeout=timeout)
        mock_ssh.sendline(sut.CONFIG_IF % self.PORT)
        config_if_prompt = sut.config_if_prompt
        mock_ssh.expect(config_if_prompt, timeout=timeout).AndRaise(exception)
        mock_ssh.sendline(sut.END_CMD)
        mock_ssh.sendline(sut.EXIT_CMD)
        mock_ssh.close(force=True)
        self.mox.ReplayAll()
        self.assertFalse(sut.set_power_state(self.POWERUNIT_INFO, mock_ssh))
        self.mox.VerifyAll()

    def testUnableToExitConfigurationTerminal(self):
        """Should return False if unable to exit configuration terminal."""
        exception = pexpect.TIMEOUT('Could not exit configuration terminal.')
        sut = rpm_controller.CiscoPOEController(self.SWITCH)
        mock_ssh = self.mox.CreateMockAnything()
        self.mox.StubOutWithMock(sut, '_login')
        self.mox.StubOutWithMock(sut, '_enter_configuration_terminal')
        sut._login().AndReturn(mock_ssh)
        sut._enter_configuration_terminal(self.PORT, mock_ssh).AndReturn(True)
        mock_ssh.sendline(sut.SET_STATE_ON)
        mock_ssh.sendline(sut.END_CMD)
        mock_ssh.expect(self.DEVICE,
                        timeout=sut.CMD_TIMEOUT).AndRaise(exception)
        mock_ssh.sendline(sut.EXIT_CMD)
        mock_ssh.close(force=True)
        self.mox.ReplayAll()
        self.assertFalse(sut.set_power_state(self.POWERUNIT_INFO, 'ON'))
        self.mox.VerifyAll()

    def testUnableToVerifyState(self):
        """Should return False if unable to verify current state."""
        sut = rpm_controller.CiscoPOEController(self.SWITCH)
        mock_ssh = self.mox.CreateMockAnything()
        self.mox.StubOutWithMock(sut, '_login')
        self.mox.StubOutWithMock(sut, '_enter_configuration_terminal')
        self.mox.StubOutWithMock(sut, '_exit_configuration_terminal')
        sut._login().AndReturn(mock_ssh)
        sut._enter_configuration_terminal(self.PORT, mock_ssh).AndReturn(True)
        sut._exit_configuration_terminal(mock_ssh).AndReturn(True)
        mock_ssh.sendline(sut.SET_STATE_ON)
        mock_ssh.sendline(sut.CHECK_INTERFACE_STATE % self.PORT)
        exception = pexpect.TIMEOUT('Could not verify state.')
        matcher = self.MATCHER % (self.PORT, self.DEVICE)
        mock_ssh.expect(matcher, timeout=sut.CMD_TIMEOUT).AndRaise(exception)
        mock_ssh.sendline(sut.EXIT_CMD)
        mock_ssh.close(force=True)
        self.mox.ReplayAll()
        self.assertFalse(sut.set_power_state(self.POWERUNIT_INFO, 'ON'))
        self.mox.VerifyAll()
Пример #14
0
class TestCiscoPOEController(mox.MoxTestBase):
    """Test CiscoPOEController."""

    STREAM_WELCOME = 'This is a POE switch.\n\nUser Name:'
    STREAM_PWD = 'Password:'******'\nchromeos2-poe-sw8#'
    STREAM_CONFIG = 'chromeos2-poe-sw8(config)#'
    STREAM_CONFIG_IF = 'chromeos2-poe-sw8(config-if)#'
    STREAM_STATUS = ('\n                                             '
                     'Flow Link          Back   Mdix\n'
                     'Port     Type         Duplex  Speed Neg      '
                     'ctrl State       Pressure Mode\n'
                     '-------- ------------ ------  ----- -------- '
                     '---- ----------- -------- -------\n'
                     'fa32     100M-Copper  Full    100   Enabled  '
                     'Off  Up          Disabled Off\n')
    SERVO = 'chromeos1-rack3-host12-servo'
    SWITCH = 'chromeos2-poe-switch8'
    PORT = 'fa32'
    POWERUNIT_INFO = utils.PowerUnitInfo(
        device_hostname=PORT,
        powerunit_hostname=SERVO,
        powerunit_type=utils.PowerUnitInfo.POWERUNIT_TYPES.POE,
        outlet=PORT,
        hydra_hostname=None)

    def setUp(self):
        super(TestCiscoPOEController, self).setUp()
        self.mox.StubOutWithMock(pexpect.spawn, '_spawn')
        self.mox.StubOutWithMock(pexpect.spawn, 'read_nonblocking')
        self.mox.StubOutWithMock(pexpect.spawn, 'sendline')
        self.poe = rpm_controller.CiscoPOEController(self.SWITCH)
        pexpect.spawn._spawn(mox.IgnoreArg(), mox.IgnoreArg())
        pexpect.spawn.read_nonblocking(
            mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(self.STREAM_WELCOME)
        pexpect.spawn.sendline(self.poe._username)
        pexpect.spawn.read_nonblocking(
            mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(self.STREAM_PWD)
        pexpect.spawn.sendline(self.poe._password)
        pexpect.spawn.read_nonblocking(
            mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(self.STREAM_DEVICE)

    def testLogin(self):
        """Test we can log into the switch."""
        self.mox.ReplayAll()
        self.assertNotEqual(self.poe._login(), None)
        self.mox.VerifyAll()

    def _EnterConfigurationHelper(self, success=True):
        """A helper function for testing entering configuration terminal.

        @param success: True if we want the process to pass, False if we
                        want it to fail.
        """
        pexpect.spawn.sendline('configure terminal')
        pexpect.spawn.read_nonblocking(
            mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(self.STREAM_CONFIG)
        pexpect.spawn.sendline('interface %s' % self.PORT)
        if success:
            pexpect.spawn.read_nonblocking(mox.IgnoreArg(),
                                           mox.IgnoreArg()).AndReturn(
                                               self.STREAM_CONFIG_IF)
        else:
            self.mox.StubOutWithMock(pexpect.spawn, '__str__')
            exception = pexpect.TIMEOUT(
                'Could not enter configuration terminal.')
            pexpect.spawn.read_nonblocking(
                mox.IgnoreArg(),
                mox.IgnoreArg()).MultipleTimes().AndRaise(exception)
            pexpect.spawn.__str__().AndReturn('A pexpect.spawn object.')
            pexpect.spawn.sendline('end')

    def testSuccessfullyChangeOutlet(self):
        """Should return True if change was successful."""
        self._EnterConfigurationHelper()
        pexpect.spawn.sendline('power inline auto')
        pexpect.spawn.sendline('end')
        pexpect.spawn.read_nonblocking(
            mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(self.STREAM_DEVICE)
        pexpect.spawn.sendline('show interface status %s' % self.PORT)
        pexpect.spawn.read_nonblocking(
            mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(self.STREAM_STATUS)
        pexpect.spawn.read_nonblocking(
            mox.IgnoreArg(), mox.IgnoreArg()).AndReturn(self.STREAM_DEVICE)
        pexpect.spawn.sendline('exit')
        self.mox.ReplayAll()
        self.assertTrue(self.poe.set_power_state(self.POWERUNIT_INFO, 'ON'))
        self.mox.VerifyAll()

    def testUnableToEnterConfigurationTerminal(self):
        """Should return False if unable to enter configuration terminal."""
        self._EnterConfigurationHelper(success=False)
        pexpect.spawn.sendline('exit')
        self.mox.ReplayAll()
        self.assertFalse(self.poe.set_power_state(self.POWERUNIT_INFO, 'ON'))
        self.mox.VerifyAll()

    def testUnableToExitConfigurationTerminal(self):
        """Should return False if unable to exit configuration terminal."""
        self.mox.StubOutWithMock(pexpect.spawn, '__str__')
        self.mox.StubOutWithMock(rpm_controller.CiscoPOEController,
                                 '_enter_configuration_terminal')
        self.poe._enter_configuration_terminal(mox.IgnoreArg(),
                                               mox.IgnoreArg()).AndReturn(True)
        pexpect.spawn.sendline('power inline auto')
        pexpect.spawn.sendline('end')
        exception = pexpect.TIMEOUT('Could not exit configuration terminal.')
        pexpect.spawn.read_nonblocking(
            mox.IgnoreArg(),
            mox.IgnoreArg()).MultipleTimes().AndRaise(exception)
        pexpect.spawn.__str__().AndReturn('A pexpect.spawn object.')
        pexpect.spawn.sendline('exit')
        self.mox.ReplayAll()
        self.assertFalse(self.poe.set_power_state(self.POWERUNIT_INFO, 'ON'))
        self.mox.VerifyAll()

    def testUnableToVerifyState(self):
        """Should return False if unable to verify current state."""
        self.mox.StubOutWithMock(pexpect.spawn, '__str__')
        self.mox.StubOutWithMock(rpm_controller.CiscoPOEController,
                                 '_enter_configuration_terminal')
        self.mox.StubOutWithMock(rpm_controller.CiscoPOEController,
                                 '_exit_configuration_terminal')
        self.poe._enter_configuration_terminal(mox.IgnoreArg(),
                                               mox.IgnoreArg()).AndReturn(True)
        pexpect.spawn.sendline('power inline auto')
        self.poe._exit_configuration_terminal(mox.IgnoreArg()).AndReturn(True)
        pexpect.spawn.sendline('show interface status %s' % self.PORT)
        exception = pexpect.TIMEOUT('Could not verify state.')
        pexpect.spawn.read_nonblocking(
            mox.IgnoreArg(),
            mox.IgnoreArg()).MultipleTimes().AndRaise(exception)
        pexpect.spawn.__str__().AndReturn('A pexpect.spawn object.')
        pexpect.spawn.sendline('exit')
        self.mox.ReplayAll()
        self.assertFalse(self.poe.set_power_state(self.POWERUNIT_INFO, 'ON'))
        self.mox.VerifyAll()