sonic-buildimage/platform/mellanox/mlnx-platform-api/tests/test_module.py

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#
# Copyright (c) 2021 NVIDIA CORPORATION & AFFILIATES.
# Apache-2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
import os
import sys
if sys.version_info.major == 3:
from unittest import mock
else:
import mock
test_path = os.path.dirname(os.path.abspath(__file__))
modules_path = os.path.dirname(test_path)
sys.path.insert(0, modules_path)
from sonic_platform import utils
from sonic_platform.chassis import ModularChassis
from sonic_platform.device_data import DeviceDataManager
from sonic_platform.module import Module
class TestModule:
@classmethod
def setup_class(cls):
DeviceDataManager.get_linecard_sfp_count = mock.MagicMock(return_value=2)
DeviceDataManager.get_linecard_count = mock.MagicMock(return_value=2)
def test_chassis_get_num_sfp(self):
chassis = ModularChassis()
assert chassis.get_num_sfps() == 4
def test_chassis_get_all_sfps(self):
utils.read_int_from_file = mock.MagicMock(return_value=1)
chassis = ModularChassis()
assert len(chassis.get_all_sfps()) == 4
@mock.patch('sonic_platform.device_data.DeviceDataManager.get_linecard_max_port_count', mock.MagicMock(return_value=16))
def test_chassis_get_sfp(self):
utils.read_int_from_file = mock.MagicMock(return_value=1)
index = 1
chassis = ModularChassis()
sfp = chassis.get_sfp(index)
assert sfp
def test_thermal(self):
from sonic_platform.thermal import THERMAL_NAMING_RULE
DeviceDataManager.get_gearbox_count = mock.MagicMock(return_value=2)
utils.read_int_from_file = mock.MagicMock(return_value=1)
m = Module(1)
assert m.get_num_thermals() == 2
assert len(m._thermal_list) == 0
thermals = m.get_all_thermals()
assert len(thermals) == 2
rule = THERMAL_NAMING_RULE['linecard thermals']
start_index = rule.get('start_index', 1)
for i, thermal in enumerate(thermals):
assert rule['name'].format(i + start_index) in thermal.get_name()
assert rule['temperature'].format(i + start_index) in thermal.temperature
assert rule['high_threshold'].format(i + start_index) in thermal.high_threshold
assert rule['high_critical_threshold'].format(i + start_index) in thermal.high_critical_threshold
assert thermal.get_position_in_parent() == i + 1
thermal = m.get_thermal(1)
assert thermal
assert thermal.get_position_in_parent() == 2
def get_sfp(self):
DeviceDataManager.get_linecard_sfp_count = mock.MagicMock(return_value=3)
utils.read_int_from_file = mock.MagicMock(return_value=1)
# Test get_num_sfps, it should not create any SFP objects
m = Module(1)
assert m.get_num_sfps() == 3
assert len(m._sfp_list) == 0
# Index out of bound, return None
sfp = m.get_sfp(3)
assert sfp is None
assert len(m._sfp_list) == 0
# Get one SFP, other SFP list should be initialized to None
sfp = m.get_sfp(0)
assert sfp is not None
assert len(m._sfp_list) == 3
assert m._sfp_list[1] is None
assert m._sfp_list[2] is None
assert m.sfp_initialized_count == 1
# Get the SFP again, no new SFP created
sfp1 = m.get_sfp(0)
assert id(sfp) == id(sfp1)
# Get another SFP, sfp_initialized_count increase
sfp2 = m.get_sfp(1)
assert sfp2 is not None
assert m._sfp_list[2] is None
assert m.sfp_initialized_count == 2
# Get all SFPs, but there are SFP already created, only None SFP created
sfp_list = m.get_all_sfps()
assert len(sfp_list) == 3
assert m.sfp_initialized_count == 3
assert filter(lambda x: x is not None, sfp_list)
assert id(sfp1) == id(sfp_list[0])
assert id(sfp2) == id(sfp_list[1])
# Get all SFPs, no SFP yet, all SFP created
m._sfp_list = []
m.sfp_initialized_count = 0
sfp_list = m.get_all_sfps()
assert len(sfp_list) == 3
assert m.sfp_initialized_count == 3
def test_check_state(self):
utils.read_int_from_file = mock.MagicMock(return_value=0)
m = Module(1)
m._sfp_list.append(1)
m._thermal_list.append(1)
m._get_seq_no = mock.MagicMock(return_value=0)
# both seq number and state no change, do not re-init module
m._check_state()
assert len(m._sfp_list) > 0
assert len(m._thermal_list) > 0
# seq number changes, but state keeps deactivated, no need re-init module
m._get_seq_no = mock.MagicMock(return_value=1)
m._check_state()
assert len(m._sfp_list) > 0
assert len(m._thermal_list) > 0
# seq number not change, state changes from deactivated to activated, need re-init module
utils.read_int_from_file = mock.MagicMock(return_value=1)
m._check_state()
assert len(m._sfp_list) == 0
assert len(m._thermal_list) == 0
# seq number changes, state keeps activated, which means the module has been replaced, need re-init module
m._sfp_list.append(1)
m._thermal_list.append(1)
m._get_seq_no = mock.MagicMock(return_value=2)
m._check_state()
assert len(m._sfp_list) == 0
assert len(m._thermal_list) == 0
# seq number not change, state changes from activated to deactivated, need re-init module
m._sfp_list.append(1)
m._thermal_list.append(1)
utils.read_int_from_file = mock.MagicMock(return_value=0)
m._check_state()
assert len(m._sfp_list) == 0
assert len(m._thermal_list) == 0
def test_module_vpd(self):
m = Module(1)
m.vpd_parser.vpd_file = os.path.join(test_path, 'mock_psu_vpd')
assert m.get_model() == 'MTEF-PSF-AC-C'
assert m.get_serial() == 'MT1946X07684'
assert m.get_revision() == 'A3'
m.vpd_parser.vpd_file = 'not exists'
assert m.get_model() == 'N/A'
assert m.get_serial() == 'N/A'
assert m.get_revision() == 'N/A'
m.vpd_parser.vpd_file_last_mtime = None
m.vpd_parser.vpd_file = os.path.join(test_path, 'mock_psu_vpd')
assert m.get_model() == 'MTEF-PSF-AC-C'
assert m.get_serial() == 'MT1946X07684'
assert m.get_revision() == 'A3'