def test_uninitialized_buffer():
# ARROW-2039: calling Buffer() directly creates an uninitialized object
check_uninitialized = partial(pytest.raises,
ReferenceError, match="uninitialized")
buf = pa.Buffer()
with check_uninitialized():
buf.size
with check_uninitialized():
len(buf)
with check_uninitialized():
buf.is_mutable
with check_uninitialized():
buf.parent
with check_uninitialized():
buf.to_pybytes()
with check_uninitialized():
memoryview(buf)
with check_uninitialized():
buf.equals(pa.frombuffer(b''))
with check_uninitialized():
pa.frombuffer(b'').equals(buf)
def test_uninitialized_buffer():
# ARROW-2039: calling Buffer() directly creates an uninitialized object
# ARROW-2638: prevent calling extension class constructors directly
with pytest.raises(TypeError):
pa.Buffer()
