Simplify hash.TestUnmarshal

hash/hash_test.go

@@ -94,16 +94,10 @@ func TestUnmarshalJSON(t *testing.T) {
 }
 
 func TestUnmarshal(t *testing.T) {
-	var hashes []Hash
-	hashSameAddr := Int(1)
-	for i := 0; i < 10; i++ {
-		copy(hashSameAddr, Int(i))
-		var hash = Hash{}
-		assert.NoError(t, hash.Unmarshal(hashSameAddr))
-		assert.Equal(t, Int(i), hash)
-		hashes = append(hashes, hash)
-	}
-	for i := 0; i < 10; i++ {
-		assert.Equal(t, Int(i), hashes[i])
-	}
+	var hash Hash
+	data := []byte(Int(1))
+	hash.Unmarshal(data)
+	// check if unmarshal copy the data
+	// test if two slises do not share the same address
+	assert.True(t, &hash[cap(hash)-1] != &data[cap(data)-1])
 }