def METHOD_NAME(self):
    g = bf.zeros_like(self.known_vals, space='cuda')
    g[...] = self.known_vals
    np.testing.assert_equal(g.copy('system'), self.known_vals)
    g[:1,1:] = [[999]]
    np.testing.assert_equal(g.copy('system'), np.array([[0,999],[2,3],[4,5]]))
    g[0,0] = 888
    np.testing.assert_equal(g.copy('system'), np.array([[888,999],[2,3],[4,5]]))
    g[0] = [99,88]
    np.testing.assert_equal(g.copy('system'), np.array([[99,88],[2,3],[4,5]]))
    g[:,1] = [77,66,55]
    np.testing.assert_equal(g.copy('system'), np.array([[99,77],[2,66],[4,55]]))