connection_count.py
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1 #!/usr/bin/env python
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33 
34 import unittest
35 import rosunit
36 import sys
37 import time
38 import subprocess
39 
40 class ConnectionCount(unittest.TestCase):
41 
43  # Wait while the recorder creates a bag for us to examine
44  time.sleep(10.0)
45 
46  # Check the connection count returned by `rosbag info`
47  # We could probably do this through the rosbag Python API...
48  cmd = ['rosbag', 'info',
49  '/tmp/test_rosbag_record_two_publishers.bag',
50  '-y', '-k', 'topics']
51  p = subprocess.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
52  out,err = p.communicate()
53  self.assertEqual(p.returncode, 0, 'Failed to check bag\ncmd=%s\nstdout=%s\nstderr=%s'%(cmd,out,err))
54 
55  conns = False
56  for l in out.decode().split('\n'):
57  f = l.strip().split(': ')
58  if len(f) == 2 and f[0] == 'connections':
59  conns = int(f[1])
60  break
61 
62  self.assertEqual(conns, 2)
63 
64 if __name__ == '__main__':
65  rosunit.unitrun('test_rosbag', 'connection_count', ConnectionCount, sys.argv)


test_rosbag
Author(s): Tim Field, Jeremy Leibs, James Bowman
autogenerated on Sun Feb 3 2019 03:30:34