jit/backend/x86/test/test_fficall.py::TestFfiCall::()::test_many_arguments

self = <rpython.jit.backend.x86.test.test_fficall.TestFfiCall object at 0x7f297d3ad6d0>

    def test_many_arguments(self):
        for i in [0, 6, 20]:
            self._run([types.signed] * i, types.signed,
                      [-123456*j for j in range(i)],
>                     -42434445)

jit/metainterp/test/test_fficall.py:182: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
jit/metainterp/test/test_fficall.py:142: in _run
    with FakeFFI(fake_call_impl_any):
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 

self = <rpython.jit.metainterp.test.test_fficall.FakeFFI object at 0x7f297d375b50>
args = ()

    def __enter__(self, *args):
>       self.monkey.setattr(jit_libffi, 'jit_ffi_call_impl_any', self.fake_call_impl_any)
E       AttributeError: 'generator' object has no attribute 'setattr'

jit/metainterp/test/test_fficall.py:40: AttributeError

builder: rpython-linux-x86-64 build #887

test: jit/backend/x86/test/test_fficall/py/TestFfiCall/()/test_many_arguments