test_rospy_numpy.py
Go to the documentation of this file.
00001 #!/usr/bin/env python
00002 # Software License Agreement (BSD License)
00003 #
00004 # Copyright (c) 2008, Willow Garage, Inc.
00005 # All rights reserved.
00006 #
00007 # Redistribution and use in source and binary forms, with or without
00008 # modification, are permitted provided that the following conditions
00009 # are met:
00010 #
00011 #  * Redistributions of source code must retain the above copyright
00012 #    notice, this list of conditions and the following disclaimer.
00013 #  * Redistributions in binary form must reproduce the above
00014 #    copyright notice, this list of conditions and the following
00015 #    disclaimer in the documentation and/or other materials provided
00016 #    with the distribution.
00017 #  * Neither the name of Willow Garage, Inc. nor the names of its
00018 #    contributors may be used to endorse or promote products derived
00019 #    from this software without specific prior written permission.
00020 #
00021 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00022 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00023 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
00024 # FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
00025 # COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
00026 # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
00027 # BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
00028 # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
00029 # CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00030 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
00031 # ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
00032 # POSSIBILITY OF SUCH DAMAGE.
00033 
00034 import os
00035 import sys
00036 import struct
00037 import unittest
00038 import time
00039 
00040 try:
00041     import numpy
00042     disable = False
00043 except ImportError:
00044     print "cannot import numpy, test is disabled"
00045     disable = True
00046 
00047 # this is partially a teste of the rospy/Tutorials/numpy
00048 from test_rospy.msg import Floats
00049 
00050 import cStringIO
00051 # test rospy.names package
00052 class TestRospyNumpy(unittest.TestCase):
00053 
00054     def test_floats(self):
00055         if disable:
00056             return
00057         vals = [1.0, 2.1, 3.2, 4.3, 5.4, 6.5]
00058         b = cStringIO.StringIO()
00059         f = Floats(numpy.array([1.0, 2.1, 3.2, 4.3, 5.4, 6.5], dtype=numpy.float32))
00060         f.serialize(b)
00061 
00062         # deserialize twice, once with numpy wrappers, once without
00063         f2 = Floats()
00064         self.assert_(type(f2.data) == list)
00065         f2.deserialize(b.getvalue())
00066         for x, y in zip(f2.data, vals):
00067             self.assertAlmostEquals(x, y, 2)
00068 
00069         from rospy.numpy_msg import numpy_msg
00070         f3 = numpy_msg(Floats)()
00071         if 0:
00072             # future
00073             self.assert_(isinstance(f3.data, numpy.ndarray), type(f3.data))
00074         f3.deserialize(b.getvalue())
00075         self.assert_(isinstance(f3.data, numpy.ndarray), type(f3.data))
00076         v = numpy.equal(f3.data, numpy.array([1.0, 2.1, 3.2, 4.3, 5.4, 6.5], dtype=numpy.float32))
00077         self.assert_(v.all())


test_rospy
Author(s): Ken Conley
autogenerated on Mon Oct 6 2014 11:47:19