Method test_gc

Lib/test/test_faulthandler.py:180–213

(self)

    @skip_segfault_on_android
    def test_gc(self):
        # bpo-44466: Detect if the GC is running
        self.check_fatal_error("""
            import faulthandler
            import gc
            import sys

            faulthandler.enable()

            class RefCycle:
                def __del__(self):
                    faulthandler._sigsegv()

            # create a reference cycle which triggers a fatal
            # error in a destructor
            a = RefCycle()
            b = RefCycle()
            a.b = b
            b.a = a

            # Delete the objects, not the cycle
            a = None
            b = None

            # Break the reference cycle: call __del__()
            gc.collect()

            # Should not reach this line
            print("exit", file=sys.stderr)
            """,
            9,
            'Segmentation fault',
            function='__del__',
            garbage_collecting=True)

    def test_fatal_error_c_thread(self):
        self.check_fatal_error("""