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1# Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
2# Use of this source code is governed by a BSD-style license that can be
3# found in the LICENSE file.
4
5from autotest_lib.client.bin import test
6from autotest_lib.client.common_lib import error
7
8
9class network_3GModemPresent(test.test):
10    """
11    Tests that a 3G modem is available.
12
13    The test attempts to find a shill device corresponding to a cellular modem.
14
15    """
16    version = 1
17
18    def run_once(self, test_env):
19        with test_env:
20            device = test_env.shill.find_cellular_device_object()
21            if not device:
22                raise error.TestFail("Could not find cellular device")
23