jit/metainterp/test/test_fficall.py::TestFfiCall::()::test_simple_call_singlefloat

self = <rpython.jit.metainterp.test.test_fficall.TestFfiCall object at 0x7f52a3f8fd50>
kwds = {'expected_call_release_gil_i': 1, 'supports_singlefloats': True}

    def test_simple_call_singlefloat(self, **kwds):
        kwds.setdefault('supports_singlefloats', True)
        kwds['expected_call_release_gil_i'] = kwds.pop('expected_call_release_gil', 1)
        self._run([types.float] * 2, types.float,
                  [r_singlefloat(10.5), r_singlefloat(31.5)],
>                 r_singlefloat(-4.5), **kwds)

jit/metainterp/test/test_fficall.py:215: 
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 
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 0x7f52a3f4afd0>
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/metainterp/test/test_fficall/py/TestFfiCall/()/test_simple_call_singlefloat