XTDrone/sitl_config/usv/vrx_gazebo/test/helpers.hh

49 lines
1.5 KiB
C++

/*
* Copyright (C) 2018 Open Source Robotics Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#ifndef ROBOTX_GAZEBO_TEST_HELPERS_HH_
#define ROBOTX_GAZEBO_TEST_HELPERS_HH_
#include <gazebo_msgs/ModelStates.h>
#include <ros/ros.h>
#include <string>
/// \brief Check whether a model exists on simulation.
/// \param[in] _name The model name.
/// \param[in] _timeout Maximum timeout to wait for a model.
/// \return True when the model was found or false otherwise.
bool ModelExists(const std::string &_name,
const ros::WallDuration _timeout = ros::WallDuration(5, 0))
{
ros::WallTime timeout = ros::WallTime::now() + _timeout;
while (ros::WallTime::now() < timeout)
{
gazebo_msgs::ModelStatesConstPtr modelStates =
ros::topic::waitForMessage<gazebo_msgs::ModelStates>(
std::string("/gazebo/model_states"), ros::Duration(0.1));
if (!modelStates) continue;
for (auto model : modelStates->name)
{
if (model == _name)
return true;
}
}
return false;
}
#endif