// wrap wraps the Block interface so that it does not fulfill
// any optimizing interfaces such as gcmAble.
func wrap(b cipher.Block) cipher.Block {
	return &wrapper{b}
}

func TestGCMAsm(t *testing.T) {
	// Create a new pair of AEADs, one using the assembly implementation
	// and one using the generic Go implementation.
	newAESGCM := func(key []byte) (asm, generic cipher.AEAD, err error) {