env.py

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#!/usr/bin/env python
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PKG = 'test_roslaunch'
NAME = 'test_env'

import os, sys, unittest

import rostest
import rospkg

## Test Roslaunch 'env' tags
class TestEnv(unittest.TestCase):
    def test_env(self):
        if '--noenv' in sys.argv:
            self.assertEquals(None, os.environ.get('TEST_ENV', None))
            self.assertEquals(None, os.environ.get('TEST_ENV_SUBSTITUTION', None))
        else:
            self.assertEquals('test env', os.environ.get('TEST_ENV', None))
            rospack = rospkg.RosPack()
            path1 = os.path.join(rospack.get_path('roslaunch'), 'src')
            path2 = os.environ.get('TEST_ENV_SUBSTITUTION', None)
            self.assertEquals(os.path.abspath(path1), os.path.abspath(path2))
        
if __name__ == '__main__':
    rostest.rosrun(PKG, NAME, TestEnv)