test_find_device_file.py
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test_find_device_file.py
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	#!/usr/bin/env python3
	#
	# Copyright (C) 2020 VyOS maintainers and contributors
	#
	# This program is free software; you can redistribute it and/or modify
	# it under the terms of the GNU General Public License version 2 or later as
	# published by the Free Software Foundation.
	#
	# This program 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 General Public License for more details.
	#
	# You should have received a copy of the GNU General Public License
	# along with this program. If not, see <http://www.gnu.org/licenses/>.

	from unittest import TestCase
	from vyos.util import find_device_file

	class TestDeviceFile(TestCase):
	""" used to find USB devices on target """
	def setUp(self):
	pass

	def test_null(self):
	self.assertEqual(find_device_file('null'), '/dev/null')

	def test_zero(self):
	self.assertEqual(find_device_file('zero'), '/dev/zero')

	def test_input_event(self):
	self.assertEqual(find_device_file('event0'), '/dev/input/event0')

	def test_non_existing(self):
	self.assertFalse(find_device_file('vyos'))