pypy/module/sys/test/apptest_monitoring.py::test_fire_py_start_return

def test_fire_py_start_return():
        E = sys.monitoring.events
        events = []
    
        def callback(*args):
            events.append(args)
    
        sys.monitoring.use_tool_id(3, "test tool")
        try:
            sys.monitoring.register_callback(3, E.PY_START, callback)
            sys.monitoring.register_callback(3, E.PY_RETURN, callback)
            sys.monitoring.set_events(3, E.PY_START | E.PY_RETURN)
    
            def f():
                return 42
    
            events.clear()
            assert f() == 42
>           assert len(events) == 2
E           (application-level) AssertionError: assert 1 == 2
E            +  where 1 = len([(<code object f at 0x000000000c85c678, file "/buildbot/slave/own-linux-x86-64/build/pypy/module/sys/test/apptest_monitoring.py", line 311>, 0)])

module/sys/test/apptest_monitoring.py:316: AssertionError

builder: own-linux-x86-64 build #10997+

test: pypy/module/sys/test/apptest_monitoring.py::test_fire_py_start_return