blob: f4513b8a0a52d8f20f529197e1047050726ae2a5 [file] [log] [blame]
# 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_open_generic_sequence
class cellular_MbimComplianceCM02(mbim_test_base.MbimTestBase):
"""
CM_02 Validation of Message Length of the response to MBIM_OPEN_MSG.
This test validates MessageLength field in MBIM_MESSAGE_HEADER.
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 the CM_02 test. """
# Precondition.
descriptors = get_descriptors_sequence.GetDescriptorsSequence(
self.device_context).run()
self.device_context.update_descriptor_cache(descriptors)
# Step 1
_, response_message = (
mbim_open_generic_sequence.MBIMOpenGenericSequence(
self.device_context).run())
# Validate message length of response to MBIM_OPEN_MESSAGE.
if response_message.message_length < 0x0C:
mbim_errors.log_and_raise(mbim_errors.MBIMComplianceAssertionError,
'mbim1.0:9.1#2')