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#!/usr/bin/env python2
# Copyright 2016 The Chromium Authors. All rights reserved.
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.
import unittest
import mock
import common
from autotest_lib.site_utils import diagnosis_utils
from autotest_lib.server import frontend
class DiagnosisUtilsTest(unittest.TestCase):
"""Tests for diagnosis_utils."""
def setUp(self):
"""Set up test."""
self.afe_mock = mock.MagicMock()
def _constructRPCHelper(self):
"""Method to construct RPCHelper"""
return diagnosis_utils.RPCHelper(self.afe_mock)
def _mockZeroHost(self):
"""Mock method to return zero host"""
return ()
def _mockTwoAvailableHosts(self):
"""Mock method to return two available hosts"""
host_a = _StubHost(status='Ready', locked=False)
host_b = _StubHost(status='Ready', locked=False)
return (host_a, host_b)
def _mockTwoFailedHosts(self):
"""Mock method to return two unavailable hosts"""
host_a = _StubHost(status='Repair Failed', locked=False)
host_b = _StubHost(status='Repairing', locked=False)
return (host_a, host_b)
def testCheckDutAvailable(self):
"""Test check_dut_availability with different scenarios"""
rpc_helper = self._constructRPCHelper()
labels = ('board:test_board', 'pool:test_pool', 'model:test_model')
# Mock aef.get_hosts to return 0 host
self.afe_mock.get_hosts.return_value = self._mockZeroHost()
skip_duts_check = False
# When minimum_duts is 0, do not force available DUTs
minimum_duts = 0
rpc_helper.check_dut_availability(labels,
minimum_duts=minimum_duts,
skip_duts_check=skip_duts_check)
# When skip_duts_check = False and minimum_duts > 0 and there's no host,
# should raise DUTsNotAvailableError
minimum_duts = 1
with self.assertRaises(diagnosis_utils.DUTsNotAvailableError):
rpc_helper.check_dut_availability(labels,
minimum_duts=minimum_duts,
skip_duts_check=skip_duts_check)
# Mock aef.get_hosts to return 2 available hosts
self.afe_mock.get_hosts.return_value = self._mockTwoAvailableHosts()
# Set skip_duts_check to True, should not force checking avialble DUTs
# although available DUTs are less then minimum_duts
minimum_duts = 4
skip_duts_check = True
rpc_helper.check_dut_availability(labels,
minimum_duts=minimum_duts,
skip_duts_check=skip_duts_check)
# Set skip_duts_check to False and current available DUTs are less
# then minimum_duts, should raise NotEnoughDutsError
skip_duts_check = False
with self.assertRaises(diagnosis_utils.NotEnoughDutsError):
rpc_helper.check_dut_availability(labels,
minimum_duts=minimum_duts,
skip_duts_check=skip_duts_check)
# When skip_duts_check is False and current available DUTs
# satisfy minimum_duts, no errors
minimum_duts = 2
rpc_helper.check_dut_availability(labels,
minimum_duts=minimum_duts,
skip_duts_check=skip_duts_check)
# Mock aef.get_hosts to return 2 failed hosts
self.afe_mock.get_hosts.return_value = self._mockTwoFailedHosts()
# When skip_duts_check is False and the two hosts are not available,
# should raise NotEnoughDutsError
with self.assertRaises(diagnosis_utils.NotEnoughDutsError):
rpc_helper.check_dut_availability(labels,
minimum_duts=minimum_duts,
skip_duts_check=skip_duts_check)
class _StubHost(object):
def __init__(self, status, locked):
self.status = status
self.locked = locked
is_available = frontend.Host.is_available.__func__
if __name__ == '__main__':
unittest.main()