p36850791
/
kinetic-devel
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

rosbag: Python unit test for writing non-chronologically

This commit is contained in:
Tim Field 2010-05-03 21:35:47 +00:00
parent 8444512a12
commit 4ad48cb8e0
1 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
tools/rosbag/test/test_bag.py
View File

@ -75,6 +75,24 @@ class TestRosbag(unittest.TestCase):
for (_, _, t1), (_, _, t2) in zip(msgs, msgs[1:]):
self.assert_(t1 < t2, 'messages returned unordered: got timestamp %s before %s' % (str(t1), str(t2)))
def test_writing_nonchronological_works(self):
b = rosbag.Bag('/tmp/test_writing_nonchronological_works.bag', 'w')
msg_count = 0
for i in range(5, 0, -1):
msg = Int32()
msg.data = i
t = roslib.rostime.Time.from_sec(i)
b.write('/ints', msg, t)
msg_count += 1
b.close()
msgs = list(rosbag.Bag('/tmp/test_writing_nonchronological_works.bag').read_messages())
self.assert_(len(msgs) == msg_count, 'not all messages written: expected %d, got %d' % (msg_count, len(msgs)))
for (_, _, t1), (_, _, t2) in zip(msgs, msgs[1:]):
self.assert_(t1 < t2, 'messages returned unordered: got timestamp %s before %s' % (str(t1), str(t2)))
def test_large_write_works(self):
for compression in [rosbag.Compression.NONE, rosbag.Compression.BZ2]:
b = rosbag.Bag('/tmp/test_large_write_works.bag', 'w', compression=compression)