pypy/module/cpyext/test/test_getargs.py::AppTestGetargs::()::test_pyarg_parse_string_py_buffer

self = <pypy.interpreter.typedef.W_ObjectObjectUserDictWeakrefable object at 0x00007fa3faf9d948>

    def test_pyarg_parse_string_py_buffer(self):
            """
            The `s*` format specifier can be used to parse a str into a Py_buffer
            structure containing a pointer to the string data and the length of the
            string data.
            """
            pybuffer = self.import_parser(
                '''
                Py_buffer buf;
                PyObject *result;
                if (!PyArg_ParseTuple(args, "s*", &buf)) {
                    return NULL;
                }
                result = PyBytes_FromStringAndSize(buf.buf, buf.len);
                PyBuffer_Release(&buf);
                return result;
                ''')
            assert b'foo\0bar\0baz' == pybuffer(b'foo\0bar\0baz')
            #return  # XXX?
>           assert b'foo\0bar\0baz' == pybuffer(bytearray(b'foo\0bar\0baz'))
E           (application-level) ValueError: __release_buffer__ called with a buffer not obtained from this object

[/Users/matti/build-worker-x86_64/own-macos-x86-64/build/pypy/module/cpyext/test/test_getargs.py:108]:20: ValueError
---------- Captured stdout call ----------
Error in cpyext, CPython compatibility layer:
The function cpyext_bf_releasebuffer_bytearray was not supposed to fail
Fatal error in cpyext, CPython compatibility layer, calling cpyext_bf_releasebuffer_bytearray
Either report a bug or consider not using this particular extension
---------- Captured stderr call ----------
<function PyModule_Create2 at 0x00007fa3fa009b50>  DONE
<function PySequence_Fast_ITEMS at 0x00007fa3fa83e5c0>  DONE
<function bytes_getbuffer at 0x00007fa3fa3d7100>  DONE
<function PyBuffer_IsContiguous at 0x00007fa3fa1e36a0>  DONE
<function PyBytes_FromStringAndSize at 0x00007fa41a413970>  DONE
<function PySequence_Fast_ITEMS at 0x00007fa3fa83e5c0>  DONE
<function cpyext_bf_getbuffer_bytearray at 0x00007fa3f9b00bd8>  DONE
<function PyBuffer_IsContiguous at 0x00007fa3fa1e36a0>  DONE
<function PyBytes_FromStringAndSize at 0x00007fa41a413970>  DONE
<function cpyext_bf_releasebuffer_bytearray at 0x00007fa3f9b00cc8>Traceback (most recent call last):
  File "/Users/matti/build-worker-x86_64/own-macos-x86-64/build/pypy/module/cpyext/api.py", line 1164, in wrapper_second_level
    raise not_supposed_to_fail(pname)
  File "/Users/matti/build-worker-x86_64/own-macos-x86-64/build/pypy/module/cpyext/api.py", line 1018, in not_supposed_to_fail
    raise SystemError
SystemError
  File "/Users/matti/oss/pypy-x86_64-buildbot/lib_pypy/_ctypes/function.py", line 283, in f
    return to_call(*args)
  File "/Users/matti/build-worker-x86_64/own-macos-x86-64/build/rpython/rtyper/lltypesystem/ll2ctypes.py", line 895, in callback
    return callback_internal(*cargs)
  File "/Users/matti/build-worker-x86_64/own-macos-x86-64/build/rpython/rtyper/lltypesystem/ll2ctypes.py", line 872, in callback_internal
    llres = container._callable(*llargs)
  File "/Users/matti/build-worker-x86_64/own-macos-x86-64/build/pypy/module/cpyext/api.py", line 990, in wrapper
    return wrapper_second_level(callable, pname, *args)
  File "/Users/matti/build-worker-x86_64/own-macos-x86-64/build/pypy/module/cpyext/api.py", line 1186, in wrapper_second_level
    state.check_and_raise_exception(always=True)
  File "/Users/matti/build-worker-x86_64/own-macos-x86-64/build/pypy/module/cpyext/state.py", line 79, in check_and_raise_exception
    raise operror
 OpErrFmtNoArgs: [<W_TypeObject 'ValueError' at 0x7fa401cbd7c0>: W_BaseExceptionUserWeakrefable([W_UnicodeObject('__release_buffer__ called with a buffer not obtained from this object')])]

builder: own-macos-x86-64 build #1335+

test: pypy/module/cpyext/test/test_getargs.py::AppTestGetargs::()::test_pyarg_parse_string_py_buffer