pypy/module/_io/test/test_bufferedio.py::AppTestBufferedReader::()::test_device_like

self = <pypy.interpreter.typedef.W_ObjectObjectUserDictWeakrefable object at 0x00000001229c8138>

    def test_device_like(self):
            # CPython GH-95782
            import _io
            class MockDevice(_io.BytesIO):
                def seek(self, *args):
                    return 0
    
                def tell(self, *args):
                    return 0
    
            fd = MockDevice(b"aaaa")
            bufio = _io.BufferedReader(fd, 4)
>           textio = _io.TextIOWrapper(bufio)
E           (application-level) LookupError: unknown encoding: utf-8

[/Users/matti/build-worker-arm64/own-macos-arm64/build/pypy/module/_io/test/test_bufferedio.py:446]:13: LookupError

builder: own-macos-arm64 build #1354+

test: pypy/module/_io/test/test_bufferedio.py::AppTestBufferedReader::()::test_device_like