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# --------------------------------------------------------------------------------------
# Copyright (c) 2018-2024, Nucleic Development Team.
#
# Distributed under the terms of the Modified BSD License.
#
# The full license is in the file LICENSE, distributed with this software.
# --------------------------------------------------------------------------------------
import gc
import pytest
from atom.api import Atom, atomref
def test_live_atomref():
"""Test a live atomref."""
atom = Atom()
ref = atomref(atom)
assert ref is atomref(atom)
assert ref and ref() is atom
assert "AtomRef" in repr(ref)
ref.__sizeof__()
with pytest.raises(TypeError):
atomref(object())
def test_dead_atomref():
"""Test a dead atomref."""
atom = Atom()
ref = atomref(atom)
del atom
gc.collect()
assert not ref and ref() is None
assert "AtomRef" in repr(ref)
ref.__sizeof__()
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