from pathlib import Path


def test_mro_loop_index_declared_before_c89_for_loop():
    source = Path("cpython/Objects/typeobject.c").read_text()
    start = source.index("_PyType_InitCache(PyInterpreterState *interp)")
    end = source.index("\n}", start) + 2
    function = source[start:end]
    assert "Py_ssize_t i;" in function
    assert "for (i = 0;" in function
    assert "for (Py_ssize_t i = 0;" not in function


if __name__ == "__main__":
    test_mro_loop_index_declared_before_c89_for_loop()
    print("typeobject MRO loop index C89 declaration: PASS")