blob: 72f9e596c98a2e991ecefb582b177a5da15c4ca8 [file] [log] [blame] [edit]
# 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_constants
from autotest_lib.client.cros.cellular.mbim_compliance import mbim_dts_test_base
from autotest_lib.client.cros.cellular.mbim_compliance import mbim_errors
from autotest_lib.client.cros.cellular.mbim_compliance.sequences \
import loopback_sequence
class cellular_MbimComplianceDTS01(mbim_dts_test_base.MbimDtsTestBase):
"""
Validation for alternate setting 1 of the communication interface.
This test validates data transfer operation for alternate setting 1 of the
Communication Interface.
Reference:
[1] Universal Serial Bus Communication Class MBIM Compliance Testing: 28
http://www.usb.org/developers/docs/devclass_docs/MBIM-Compliance-1.0.pdf
"""
version = 1
def run_internal(self):
""" Run DTS_01 test. """
# Precondition
_, _, _ = self.run_precondition(mbim_constants.NTB_FORMAT_16)
# Step 1
loopback = loopback_sequence.LoopbackSequence(self.device_context)
_, _, _, payload = loopback.run(ntb_format=mbim_constants.NTB_FORMAT_16)
# Step 2
# Let's check the first byte of the first received payload to verify
# that it is an IPv4 packet
if payload[0][0] != 0x45:
mbim_errors.log_and_raise(mbim_errors.MBIMComplianceAssertionError,
'mbim1.0:3.2.1#5')