tests := []struct {
		name        string
		oneShotHash func(in []byte) []byte
		digest      hash.Hash
		golden      []sha512Test
	}{
		{
			"SHA512/224",
			func(in []byte) []byte { a := Sum512_224(in); return a[:] },
			New512_224(),
			golden224,
		},
		{
			"SHA512/256",
			func(in []byte) []byte { a := Sum512_256(in); return a[:] },
			New512_256(),
			golden256,
		},
		{