current_state_monitor_tests.cpp

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/* Author: Tyler Weaver */
 
#include <chrono>
#include <memory>
#include <string>
 
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include <moveit/planning_scene_monitor/current_state_monitor.h>
#include <moveit/utils/robot_model_test_utils.h>
#include <rclcpp/rclcpp.hpp>
#include <tf2_ros/buffer.h>
 
struct MockMiddlewareHandle : public planning_scene_monitor::CurrentStateMonitor::MiddlewareHandle
{
  MOCK_METHOD(rclcpp::Time, now, (), (const, override));
  MOCK_METHOD(void, createJointStateSubscription,
              (const std::string& topic, planning_scene_monitor::JointStateUpdateCallback callback), (override));
  MOCK_METHOD(void, resetJointStateSubscription, (), (override));
  MOCK_METHOD(std::string, getJointStateTopicName, (), (const, override));
  MOCK_METHOD(bool, sleepFor, (const std::chrono::nanoseconds& nanoseconds), (const, override));
  MOCK_METHOD(bool, ok, (), (const, override));
  MOCK_METHOD(void, createStaticTfSubscription, (TfCallback callback), (override));
  MOCK_METHOD(void, createDynamicTfSubscription, (TfCallback callback), (override));
  MOCK_METHOD(std::string, getStaticTfTopicName, (), (const, override));
  MOCK_METHOD(std::string, getDynamicTfTopicName, (), (const, override));
  MOCK_METHOD(void, resetTfSubscriptions, (), (override));
};
 
TEST(CurrentStateMonitorTests, StartCreateSubscriptionTest)
{
  auto mock_middleware_handle = std::make_unique<MockMiddlewareHandle>();
  // THEN we expect it to call createJointStateSubscription on the MiddlewareHandle
  EXPECT_CALL(*mock_middleware_handle, createJointStateSubscription);
 
  // GIVEN a CurrentStateMonitor
  planning_scene_monitor::CurrentStateMonitor current_state_monitor{
    std::move(mock_middleware_handle), moveit::core::loadTestingRobotModel("panda"),
    std::make_shared<tf2_ros::Buffer>(std::make_shared<rclcpp::Clock>()), false
  };
 
  // WHEN we start the current state monitor
  current_state_monitor.startStateMonitor();
}
 
TEST(CurrentStateMonitorTests, StartActiveTest)
{
  // GIVEN a CurrentStateMonitor
  planning_scene_monitor::CurrentStateMonitor current_state_monitor{
    std::make_unique<MockMiddlewareHandle>(), moveit::core::loadTestingRobotModel("panda"),
    std::make_shared<tf2_ros::Buffer>(std::make_shared<rclcpp::Clock>()), false
  };
 
  // WHEN we start the current state monitor
  current_state_monitor.startStateMonitor();
 
  // THEN we expect it to be active
  EXPECT_TRUE(current_state_monitor.isActive());
}
 
TEST(CurrentStateMonitorTests, StopResetSubscriptionTest)
{
  auto mock_middleware_handle = std::make_unique<MockMiddlewareHandle>();
 
  // THEN we expect it to call now and resetJointStateSubscription on the MiddlewareHandle
  EXPECT_CALL(*mock_middleware_handle, resetJointStateSubscription);
  EXPECT_CALL(*mock_middleware_handle, now);
 
  // GIVEN a CurrentStateMonitor that is started
  planning_scene_monitor::CurrentStateMonitor current_state_monitor{
    std::move(mock_middleware_handle), moveit::core::loadTestingRobotModel("panda"),
    std::make_shared<tf2_ros::Buffer>(std::make_shared<rclcpp::Clock>()), false
  };
  current_state_monitor.startStateMonitor();
 
  // WHEN we stop the current state monitor
  current_state_monitor.stopStateMonitor();
}
 
TEST(CurrentStateMonitorTests, StopNotActiveTest)
{
  auto mock_middleware_handle = std::make_unique<MockMiddlewareHandle>();
 
  // GIVEN a CurrentStateMonitor that is started
  planning_scene_monitor::CurrentStateMonitor current_state_monitor{
    std::move(mock_middleware_handle), moveit::core::loadTestingRobotModel("panda"),
    std::make_shared<tf2_ros::Buffer>(std::make_shared<rclcpp::Clock>()), false
  };
  current_state_monitor.startStateMonitor();
 
  // WHEN we stop the current state monitor
  current_state_monitor.stopStateMonitor();
 
  // THEN we expect it to not be active
  EXPECT_FALSE(current_state_monitor.isActive());
}
 
TEST(CurrentStateMonitorTests, DestructStopTest)
{
  auto mock_middleware_handle = std::make_unique<MockMiddlewareHandle>();
 
  // THEN we expect it to be stopped and resetJointStateSubscription and now to be called
  EXPECT_CALL(*mock_middleware_handle, resetJointStateSubscription);
  EXPECT_CALL(*mock_middleware_handle, now);
 
  // GIVEN a CurrentStateMonitor that we started
  {
    planning_scene_monitor::CurrentStateMonitor current_state_monitor{
      std::move(mock_middleware_handle), moveit::core::loadTestingRobotModel("panda"),
      std::make_shared<tf2_ros::Buffer>(std::make_shared<rclcpp::Clock>()), false
    };
    current_state_monitor.startStateMonitor();
    EXPECT_TRUE(current_state_monitor.isActive());
  }
  // WHEN it is  destructed
}
 
TEST(CurrentStateMonitorTests, NoModelTest)
{
  // GIVEN an uninitialized robot model
  moveit::core::RobotModelPtr robot_model = nullptr;
 
  // WHEN the CurrentStateMonitor is constructed with it
  // THEN we expect the monitor to throw because of the invalid model
  EXPECT_THROW(planning_scene_monitor::CurrentStateMonitor _(
                   std::make_unique<MockMiddlewareHandle>(), robot_model,
                   std::make_shared<tf2_ros::Buffer>(std::make_shared<rclcpp::Clock>()), false),
               std::invalid_argument);
}
 
TEST(CurrentStateMonitorTests, HaveCompleteStateConstructFalse)
{
  // GIVEN a CurrentStateMonitor
  planning_scene_monitor::CurrentStateMonitor current_state_monitor{
    std::make_unique<MockMiddlewareHandle>(), moveit::core::loadTestingRobotModel("panda"),
    std::make_shared<tf2_ros::Buffer>(std::make_shared<rclcpp::Clock>()), false
  };
 
  // WHEN it is constructed
  // THEN we expect haveCompleteState to be false
  EXPECT_FALSE(current_state_monitor.haveCompleteState());
}
 
TEST(CurrentStateMonitorTests, WaitForCompleteStateWaits)
{
  auto mock_middleware_handle = std::make_unique<MockMiddlewareHandle>();
 
  auto nanoseconds_slept = std::chrono::nanoseconds(0);
  ON_CALL(*mock_middleware_handle, sleepFor)
      .WillByDefault(testing::Invoke([&](const std::chrono::nanoseconds& nanoseconds) {
        nanoseconds_slept += nanoseconds;
        return true;
      }));
 
  // GIVEN a CurrentStateMonitor
  planning_scene_monitor::CurrentStateMonitor current_state_monitor{
    std::move(mock_middleware_handle), moveit::core::loadTestingRobotModel("panda"),
    std::make_shared<tf2_ros::Buffer>(std::make_shared<rclcpp::Clock>()), false
  };
 
  // WHEN we wait for complete state for 1s
  current_state_monitor.waitForCompleteState(1.0);
 
  // THEN we expect it waited for near 1 seconds
  EXPECT_NEAR(nanoseconds_slept.count(), 1e+9, 1e3);
}
 
int main(int argc, char** argv)
{
  ::testing::InitGoogleTest(&argc, argv);
  return RUN_ALL_TESTS();
}