pypy/objspace/std/test/test_unicodeobject.py::AppTestUnicodeString::()::test_replace_with_buffer

self = <pypy.interpreter.typedef.W_ObjectObjectUserDictWeakrefable object at 0x00000000708d77c0>

    def test_replace_with_buffer(self):
>           assert u'abc'.replace(buffer('b'), buffer('e')) == u'aec'
E           (application-level) NameError: name 'buffer' is not defined

[/buildbot/slave/own-linux-aarch64/build/pypy/objspace/std/test/test_unicodeobject.py:641]:2: NameError

builder: own-linux-aarch64 build #2821+

test: pypy/objspace/std/test/test_unicodeobject.py::AppTestUnicodeString::()::test_replace_with_buffer