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trezor-firmware/trezorlib/tests/unit_tests/test_transport.py

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# This file is part of the Trezor project.
#
# Copyright (C) 2012-2018 SatoshiLabs and contributors
#
# This library is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License version 3
# as published by the Free Software Foundation.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the License along with this library.
# If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
import mock
from trezorlib.transport import all_transports
def test_all_transports_without_hid():
# import all transports, assume this doesn't fail
transports_ref = all_transports()
# also shouldn't fail when bridge transport is missing
with mock.patch.dict('sys.modules', {'trezorlib.transport.bridge': None}):
transports = all_transports()
# there should now be less transports
assert len(transports_ref) > len(transports)