test_transform.py

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#!/usr/bin/env python
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import unittest
import rospy
import rostest
import sys
from std_msgs.msg import *


PKG = 'topic_tools'
NAME = 'transform_sub'


class TransformSub(unittest.TestCase):

  def test_transform_sub(self):
    rospy.init_node(NAME)
    value = rospy.get_param("~value", 1.0)

    try:
        msg = rospy.wait_for_message("input", Float32, 1.0)
        self.assertEqual(msg.data, value)
    except rospy.ROSException as e:
        self.fail(str(e))

if __name__ == '__main__':
  rostest.rosrun(PKG, NAME, TransformSub, sys.argv)