0xff, 0xff, 0xff, 0xff, 0xfd}, b: []byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, fail: true, }} for i, tt := range tests { m := modulusFromBytes(tt.m) got, err := NewNat().SetBytes(tt.b, m) if err != nil { if !tt.fail { t.Errorf("%d: unexpected error: %v", i, err) } continue } if tt.fail { t.Errorf("%d: unexpected success", i) continue } if expected := natFromBytes(tt.b).ExpandFor(m); got.Equal(expected) != yes { t.Errorf("%d: got %v, expected %v", i, got, expected) } } f := func(xBytes...