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AP_DDS: battery topic to report all the available batteries
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Tools/ros2/ardupilot_dds_tests/test/ardupilot_dds_tests/test_battery_msg_received.py
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# Copyright 2023 ArduPilot.org. | ||
# | ||
# This program is free software: you can redistribute it and/or modify | ||
# it under the terms of the GNU General Public License as published by | ||
# the Free Software Foundation, either version 3 of the License, or | ||
# (at your option) any later version. | ||
# | ||
# This program is distributed in the hope that it will be useful, | ||
# but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
# GNU General Public License for more details. | ||
# | ||
# You should have received a copy of the GNU General Public License | ||
# along with this program. If not, see <https://www.gnu.org/licenses/>. | ||
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""" | ||
Bring up ArduPilot SITL and check the BatteryState message is being published. | ||
Checks whether a message is received and that only frame_id = '0' is received, | ||
as SITL has only one battery available. | ||
colcon test --packages-select ardupilot_dds_tests \ | ||
--event-handlers=console_cohesion+ --pytest-args -k test_battery_msg_received | ||
""" | ||
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import launch_pytest | ||
import pytest | ||
import rclpy | ||
import rclpy.node | ||
import threading | ||
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from launch import LaunchDescription | ||
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from launch_pytest.tools import process as process_tools | ||
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from rclpy.qos import QoSProfile | ||
from rclpy.qos import QoSReliabilityPolicy | ||
from rclpy.qos import QoSHistoryPolicy | ||
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from sensor_msgs.msg import BatteryState | ||
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TOPIC = "ap/battery" | ||
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class BatteryListener(rclpy.node.Node): | ||
"""Subscribe to BatteryState messages.""" | ||
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def __init__(self): | ||
"""Initialise the node.""" | ||
super().__init__("battery_listener") | ||
self.msg_event_object = threading.Event() | ||
self.frame_id_correct_object = threading.Event() | ||
self.frame_id_incorrect_object = threading.Event() | ||
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# Declare and acquire `topic` parameter | ||
self.declare_parameter("topic", TOPIC) | ||
self.topic = self.get_parameter("topic").get_parameter_value().string_value | ||
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def start_subscriber(self): | ||
"""Start the subscriber.""" | ||
qos_profile = QoSProfile( | ||
reliability=QoSReliabilityPolicy.BEST_EFFORT, | ||
history=QoSHistoryPolicy.KEEP_LAST, | ||
depth=1, | ||
) | ||
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self.subscription = self.create_subscription(BatteryState, self.topic, self.subscriber_callback, qos_profile) | ||
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# Add a spin thread. | ||
self.ros_spin_thread = threading.Thread(target=lambda node: rclpy.spin(node), args=(self,)) | ||
self.ros_spin_thread.start() | ||
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def subscriber_callback(self, msg): | ||
"""Process a BatteryState message.""" | ||
self.msg_event_object.set() | ||
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self.get_logger().info("From AP : ID {} Voltage {}".format(msg.header.frame_id, msg.voltage)) | ||
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if msg.header.frame_id == '0': | ||
self.frame_id_correct_object.set() | ||
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if msg.header.frame_id == '1': | ||
self.frame_id_incorrect_object.set() | ||
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@launch_pytest.fixture | ||
def launch_sitl_copter_dds_serial(sitl_copter_dds_serial): | ||
"""Fixture to create the launch description.""" | ||
sitl_ld, sitl_actions = sitl_copter_dds_serial | ||
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ld = LaunchDescription( | ||
[ | ||
sitl_ld, | ||
launch_pytest.actions.ReadyToTest(), | ||
] | ||
) | ||
actions = sitl_actions | ||
yield ld, actions | ||
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@launch_pytest.fixture | ||
def launch_sitl_copter_dds_udp(sitl_copter_dds_udp): | ||
"""Fixture to create the launch description.""" | ||
sitl_ld, sitl_actions = sitl_copter_dds_udp | ||
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ld = LaunchDescription( | ||
[ | ||
sitl_ld, | ||
launch_pytest.actions.ReadyToTest(), | ||
] | ||
) | ||
actions = sitl_actions | ||
yield ld, actions | ||
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@pytest.mark.launch(fixture=launch_sitl_copter_dds_serial) | ||
def test_dds_serial_battery_msg_recv(launch_context, launch_sitl_copter_dds_serial): | ||
"""Test battery messages are published by AP_DDS.""" | ||
_, actions = launch_sitl_copter_dds_serial | ||
virtual_ports = actions["virtual_ports"].action | ||
micro_ros_agent = actions["micro_ros_agent"].action | ||
mavproxy = actions["mavproxy"].action | ||
sitl = actions["sitl"].action | ||
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# Wait for process to start. | ||
process_tools.wait_for_start_sync(launch_context, virtual_ports, timeout=2) | ||
process_tools.wait_for_start_sync(launch_context, micro_ros_agent, timeout=2) | ||
process_tools.wait_for_start_sync(launch_context, mavproxy, timeout=2) | ||
process_tools.wait_for_start_sync(launch_context, sitl, timeout=2) | ||
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rclpy.init() | ||
try: | ||
node = BatteryListener() | ||
node.start_subscriber() | ||
msgs_received_flag = node.msg_event_object.wait(timeout=10.0) | ||
assert msgs_received_flag, f"Did not receive '{TOPIC}' msgs." | ||
battery_correct_flag = node.frame_id_correct_object.wait(timeout=10.0) | ||
assert battery_correct_flag, f"Did not receive correct battery ID." | ||
battery_incorrect_flag = not node.frame_id_incorrect_object.wait(timeout=10.0) | ||
assert battery_correct_flag, f"Did received incorrect battery ID." | ||
finally: | ||
rclpy.shutdown() | ||
yield | ||
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@pytest.mark.launch(fixture=launch_sitl_copter_dds_udp) | ||
def test_dds_udp_battery_msg_recv(launch_context, launch_sitl_copter_dds_udp): | ||
"""Test battery messages are published by AP_DDS.""" | ||
_, actions = launch_sitl_copter_dds_udp | ||
micro_ros_agent = actions["micro_ros_agent"].action | ||
mavproxy = actions["mavproxy"].action | ||
sitl = actions["sitl"].action | ||
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# Wait for process to start. | ||
process_tools.wait_for_start_sync(launch_context, micro_ros_agent, timeout=2) | ||
process_tools.wait_for_start_sync(launch_context, mavproxy, timeout=2) | ||
process_tools.wait_for_start_sync(launch_context, sitl, timeout=2) | ||
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rclpy.init() | ||
try: | ||
node = BatteryListener() | ||
node.start_subscriber() | ||
msgs_received_flag = node.msg_event_object.wait(timeout=10.0) | ||
assert msgs_received_flag, f"Did not receive '{TOPIC}' msgs." | ||
battery_correct_flag = node.frame_id_correct_object.wait(timeout=10.0) | ||
assert battery_correct_flag, f"Did not receive correct battery ID." | ||
battery_incorrect_flag = not node.frame_id_incorrect_object.wait(timeout=10.0) | ||
assert battery_correct_flag, f"Did received incorrect battery ID." | ||
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finally: | ||
rclpy.shutdown() | ||
yield |
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