topic_count.py
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1 #!/usr/bin/env python
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34 
35 import roslib
36 roslib.load_manifest('rosbag')
37 
38 import unittest
39 import rostest
40 import sys
41 import time
42 import subprocess
43 
44 class TopicCount(unittest.TestCase):
45 
46  def test_topic_count(self):
47  # Wait while the recorder creates a bag for us to examine
48  time.sleep(10.0)
49 
50  # Check the topic count returned by `rosbag info`
51  # We could probably do this through the rosbag Python API...
52  cmd = ['rosbag', 'info',
53  '/tmp/test_rosbag_record_one_publisher_two_topics.bag',
54  '-y', '-k', 'topics']
55  p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
56  out,err = p.communicate()
57  topic_count = 0
58  for l in out.decode().split('\n'):
59  f = l.strip().split(': ')
60  if len(f) == 2 and f[0] == '- topic':
61  topic_count += 1
62 
63  self.assertEqual(topic_count, 2)
64 
65 if __name__ == '__main__':
66  rostest.unitrun('test_rosbag', 'topic_count', TopicCount, sys.argv)
def test_topic_count(self)
Definition: topic_count.py:46


test_rosbag
Author(s): Tim Field, Jeremy Leibs, James Bowman, Dirk Thomas
autogenerated on Mon Nov 2 2020 03:53:09