42 lines
1.6 KiB
Python
42 lines
1.6 KiB
Python
# Copyright 2014 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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import common
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from autotest_lib.client.cros.cellular.mbim_compliance import mbim_constants
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from autotest_lib.client.cros.cellular.mbim_compliance import mbim_dts_test_base
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from autotest_lib.client.cros.cellular.mbim_compliance import mbim_errors
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from autotest_lib.client.cros.cellular.mbim_compliance.sequences \
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import loopback_sequence
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class cellular_MbimComplianceDTS01(mbim_dts_test_base.MbimDtsTestBase):
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"""
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Validation for alternate setting 1 of the communication interface.
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This test validates data transfer operation for alternate setting 1 of the
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Communication Interface.
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Reference:
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[1] Universal Serial Bus Communication Class MBIM Compliance Testing: 28
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http://www.usb.org/developers/docs/devclass_docs/MBIM-Compliance-1.0.pdf
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"""
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version = 1
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def run_internal(self):
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""" Run DTS_01 test. """
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# Precondition
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_, _, _ = self.run_precondition(mbim_constants.NTB_FORMAT_16)
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# Step 1
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loopback = loopback_sequence.LoopbackSequence(self.device_context)
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_, _, _, payload = loopback.run(ntb_format=mbim_constants.NTB_FORMAT_16)
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# Step 2
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# Let's check the first byte of the first received payload to verify
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# that it is an IPv4 packet
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if payload[0][0] != 0x45:
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mbim_errors.log_and_raise(mbim_errors.MBIMComplianceAssertionError,
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'mbim1.0:3.2.1#5')
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