🧑‍🌾 `rclpy.rclpy.test.test_events_executor.TestEventsExecutor.test_pub_sub` test failing with subscriber node alone in multiple rmws

[Crola1702]

Generated by Generative AI

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Operating System:

Ubuntu Noble

ROS version or commit hash:

rolling, kilted

RMW implementation (if applicable):

No response

RMW Configuration (if applicable):

No response

Client library (if applicable):

No response

'ros2 doctor --report' output

No response

Steps to reproduce issue

1. Run a build in one of the jobs below
2. See test fail

Expected behavior

Test should pass

Actual behavior

Test is failing in different rmws

Additional information

Reference builds:

• Kci__nightly-cyclonedds_ubuntu_noble_amd64#51
• Rci__nightly-connext_ubuntu_noble_amd64#555
• Rci__nightly-cyclonedds_ubuntu_noble_amd64#547
• Rci__nightly-zenoh_ubuntu_noble_amd64#216

Test regressions:

• projectroot.test_events_executor
• rclpy.rclpy.test.test_events_executor.TestEventsExecutor.test_pub_sub

Seems like an isolation issue? (CC @cottsay?)

Log output:

=================================== FAILURES ===================================
_______________________ TestEventsExecutor.test_pub_sub ________________________

self = <test.test_events_executor.TestEventsExecutor testMethod=runTest>

    def test_pub_sub(self) -> None:
        sub_node = SubTestNode()
        new_pub_future = sub_node.expect_pub_info()
        received_future = sub_node.expect_message()
        self.executor.add_node(sub_node)
    
        # With subscriber node alone, should be no publisher or messages
>       self._expect_future_not_done(new_pub_future)

../../src/ros2/rclpy/rclpy/test/test_events_executor.py:525: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
../../src/ros2/rclpy/rclpy/test/test_events_executor.py:465: in _expect_future_not_done
    self.assertFalse(future.done())
E   AssertionError: True is not false
- generated xml file: /tmp/ws/test_results/rclpy/test_events_executor.xunit.xml -
=========================== short test summary info ============================
FAILED ../../src/ros2/rclpy/rclpy/test/test_events_executor.py::TestEventsExecutor::test_pub_sub

Test flakiness:

job_name	last_fail	first_fail	build_count	failure_count	failure_percentage
Rci__nightly-zenoh_ubuntu_noble_amd64	2025-10-15	2025-10-02	14	14	100.0
Rci__nightly-cyclonedds_ubuntu_noble_amd64	2025-10-15	2025-10-03	14	13	92.86
Rci__nightly-connext_ubuntu_noble_amd64	2025-10-13	2025-10-10	14	2	14.29
Kci__nightly-cyclonedds_ubuntu_noble_amd64	2025-10-13	2025-10-07	4	3	75.0