GOST34112012 hashes satisfy Binary(Un)Marshaler

[gogost.git] / src / cypherpunks.ru / gogost / internal / gost34112012 / hash_test.go

diff --git a/src/cypherpunks.ru/gogost/internal/gost34112012/hash_test.go b/src/cypherpunks.ru/gogost/internal/gost34112012/hash_test.go
index 1e0df645c6eb8d57dbd35beccaf61057c82e3b2c..5309447ee711f9a0cf8215a1f7071e19276ae67e 100644 (file)
--- a/src/cypherpunks.ru/gogost/internal/gost34112012/hash_test.go
+++ b/src/cypherpunks.ru/gogost/internal/gost34112012/hash_test.go
@@ -19,6 +19,7 @@ package gost34112012
 import (
        "bytes"
        "crypto/rand"
+       "encoding"
        "hash"
        "testing"
        "testing/quick"
@@ -27,6 +28,8 @@ import (
 func TestHashInterface(t *testing.T) {
        h := New(64)
        var _ hash.Hash = h
+       var _ encoding.BinaryMarshaler = h
+       var _ encoding.BinaryUnmarshaler = h
 }
 
 func TestVectors(t *testing.T) {
@@ -188,12 +191,30 @@ func TestRandom(t *testing.T) {
                h.Reset()
                h.Write(data)
                d1 := h.Sum(nil)
+               h1Raw, err := h.MarshalBinary()
+               if err != nil {
+                       return false
+               }
                h.Reset()
                for _, c := range data {
                        h.Write([]byte{c})
                }
                d2 := h.Sum(nil)
-               return bytes.Compare(d1, d2) == 0
+               if bytes.Compare(d1, d2) != 0 {
+                       return false
+               }
+               h2Raw, err := h.MarshalBinary()
+               if err != nil {
+                       return false
+               }
+               if bytes.Compare(h1Raw, h2Raw) != 0 {
+                       return false
+               }
+               hNew := New(64)
+               if err = hNew.UnmarshalBinary(h1Raw); err != nil {
+                       return false
+               }
+               return bytes.Compare(hNew.Sum(nil), d1) == 0
        }
        if err := quick.Check(f, nil); err != nil {
                t.Error(err)