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# Copyright 2014 The Chromium OS 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 common
from autotest_lib.client.cros.cellular.mbim_compliance import mbim_errors
from autotest_lib.client.cros.cellular.mbim_compliance \
import mbim_test_base
from autotest_lib.client.cros.cellular.mbim_compliance.sequences \
import get_descriptors_sequence
from autotest_lib.client.cros.cellular.mbim_compliance.sequences \
import mbim_cid_device_caps_sequence
from autotest_lib.client.cros.cellular.mbim_compliance.sequences \
import mbim_open_generic_sequence
class cellular_MbimComplianceCM04(mbim_test_base.MbimTestBase):
"""
CM_04 Validation of |transaction_id| in modem's response to MBIM_COMMAND_MSG
This section contains tests that validate the specifics of MBIM_COMMAND_MSG
request and the function's response.
Reference:
[1] Universal Serial Bus Communication Class MBIM Compliance Testing: 38
http://www.usb.org/developers/docs/devclass_docs/MBIM-Compliance-1.0.pdf
"""
version = 1
def run_internal(self):
""" Run CM_04 test. """
# Precondition
descriptors = get_descriptors_sequence.GetDescriptorsSequence(
self.device_context).run()
self.device_context.update_descriptor_cache(descriptors)
mbim_open_generic_sequence.MBIMOpenGenericSequence(
self.device_context).run()
# Step 1
command_message, response_message = (
mbim_cid_device_caps_sequence.MBIMCIDDeviceCapsSequence(
self.device_context).run())
# Validate |transaction_id| in the response to MBIM_COMMAND_MSG.
if response_message.transaction_id != command_message.transaction_id:
mbim_errors.log_and_raise(mbim_errors.MBIMComplianceAssertionError,
'mbim1.0:9.4.3')