def test_serialize() -> None:
msg = String()
msg.data = "test"
data = serialize(msg)
msg2 = String()
msg2.deserialize(data[4:])
assert msg.data == msg2.data
def test_logplayer_raw(self):
from ros import rosrecord
import roslib.packages
d = os.path.join(roslib.packages.get_pkg_dir('test_rosrecord'), 'test')
f = os.path.join(d, 'hello_world.bag')
self.assert_(os.path.isfile(f))
from std_msgs.msg import String
for topic, msg, t in rosrecord.logplayer(f, raw=True):
self.assertEquals('chatter', topic)
datatype = msg[0]
data = msg[1]
md5sum = msg[2]
bag_position = msg[3]
self.assertEquals(datatype, 'std_msgs/String')
self.assertEquals('992ce8a1687cec8c8bd883ec73ca41d1', md5sum)
# need better testing than this
self.assert_(type(bag_position == int))
# make sure message time is within expected range
self.assert_(abs(t.to_sec() - 1260988735.) < 30.)
# test that we can deserialize it
s = String()
s.deserialize(data)
self.assertEquals('hello world', s.data)
def bytes_to_string_message(bytes_data):
msg = StringMsg()
seralizedMsgView = _bytes_to_string_message(bytes_data)
return msg.deserialize(seralizedMsgView.tobytes())
