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Tests for object finalization semantics, as outlined in PEP 442.
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The base class for all the objects under test, equipped with various
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A context manager to use around all finalization tests.
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Check the object is sane (non-broken).
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PEP 442 finalizer. Record that this was called, check the
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A side effect called on destruction.
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Resurrect self by storing self in a class-wide list.
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Test finalization without refcycles.
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Explicitly break the reference cycle.
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Test finalization of an object having a single cyclic reference to
itself.
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Test finalization of a cyclic chain. These tests are similar in
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Test finalization of objects with a tp_del.
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