test_roslaunch_ros_args.py

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#!/usr/bin/env python
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PKG = 'roslaunch'
NAME = 'test_roslaunch_ros_args'

import os
import sys 
import unittest

import rostest

import rospkg
import roslaunch.arg_dump

class TestRoslaunchRosArgs(unittest.TestCase):

    def setUp(self):
        self.vals = set()
        self.msgs = {}

    def test_roslaunch(self):
        rospack = rospkg.RosPack()
        filename = os.path.join(rospack.get_path('test_roslaunch'), 'test', 'ros_args.launch')

        args = roslaunch.arg_dump.get_args([filename])

        expected_args = {
                'foo': ("I pity the foo'.", 'true'),
                'bar': ("Someone walks into this.", None,),
                'baz': (None, 'false'),
                'nop': (None, None)}

        self.assertEqual(args, expected_args)

if __name__ == '__main__':
    rostest.run(PKG, NAME, TestRoslaunchRosArgs, sys.argv)