mr.b = !mr.b
	return b
}

func (mr *mockRand) save(*uint64, *uint64) {
	panic("unimplemented")
}

func (mr *mockRand) restore(uint64, uint64) {
	panic("unimplemented")
}

func TestByteSliceMutators(t *testing.T) {
	for _, tc := range []struct {
		name     string
		mutator  func(*mutator, []byte) []byte
		randVals []int
		input    []byte
		expected []byte
	}{
		{