def test_basic42(self):
        """2 args! rel arrays very close in size"""
        def kernel(a, b):
            return a[0, 1] + b[0, -2]
        a = np.arange(12.).reshape(3, 4)
        b = np.arange(9.).reshape(3, 3)
        self.check_exceptions(kernel, a, b, expected_exception=[ValueError,
                                                                AssertionError])
2 args! rel arrays very close in size
numba/tests/test_stencils.py