test_base_odomw_gt.py

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#!/usr/bin/env python
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## Gazebo test base controller vw

PKG = 'pr2_gazebo'
NAME = 'test_base_odomw_gt'

import math
import roslib
roslib.load_manifest(PKG)

import sys, unittest
import os, time
import rospy, rostest
from geometry_msgs.msg import Twist,Vector3
from nav_msgs.msg import Odometry

TEST_DURATION   = 10.0

TARGET_VX       =  0.0
TARGET_VY       =  0.0
TARGET_VW       =  0.25
TARGET_DURATION = 2.0
TARGET_TOL      = 0.2

from test_base import BaseTest, Q, E
class W_GT(BaseTest):
    def __init__(self, *args):
        super(W_GT, self).__init__(*args)

    def test_base(self):
        self.init_ros(NAME)
        timeout_t = None
        while not rospy.is_shutdown() and not self.success and ( timeout_t is None or time.time() < timeout_t ) :
            #do not start commanding base until p3d and odom are initialized
            if self.p3d_initialized == True and self.odom_initialized == True:
              self.pub.publish(Twist(Vector3(TARGET_VX,TARGET_VY, 0), Vector3(0,0,TARGET_VW)))
              if timeout_t is None: # initialize timeout_t when p3d and odom is received
                  timeout_t = time.time() + TEST_DURATION
            time.sleep(0.1)
            #self.debug_e()
            # display what the odom error is
            error = E(0,0,0)
            error.shortest_euler_distance(self.p3d_e,self.odom_e)
            print " error   " +      " x:" + str(self.odom_x - self.p3d_x) \
                              +      " y:" + str(self.odom_y - self.p3d_y) \
                              +      " e:" + str(error.x) + "," + str(error.y) + "," + str(error.z) \
                              + " t_odom:" + str(self.odom_e.z) + " t_p3d:" + str(self.p3d_e.z)

        # check total error
        total_error = abs(self.odom_x - self.p3d_x) + abs(self.odom_y - self.p3d_y) + abs(error.x) + abs(error.y) + abs(error.z)
        print "total error:" + str(total_error) + " tol:" + str(TARGET_TOL)
        if total_error < TARGET_TOL:
            self.success = True

        self.assert_(self.success)
        
if __name__ == '__main__':
    rostest.run(PKG, sys.argv[0], W_GT, sys.argv) #, text_mode=True)