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// Copyright (C) 2019-2023 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package crypto
import (
"testing"
"github.com/algorand/go-algorand/test/partitiontest"
"github.com/stretchr/testify/require"
)
func TestHashFactoryCreatingNewHashes(t *testing.T) {
partitiontest.PartitionTest(t)
a := require.New(t)
h := HashFactory{HashType: Sha512_256}.NewHash()
a.NotNil(h)
a.Equal(Sha512_256Size, h.Size())
h = HashFactory{HashType: Sumhash}.NewHash()
a.NotNil(h)
a.Equal(SumhashDigestSize, h.Size())
h = HashFactory{HashType: Sha256}.NewHash()
a.NotNil(h)
a.Equal(Sha256Size, h.Size())
}
func TestHashSum(t *testing.T) {
partitiontest.PartitionTest(t)
a := require.New(t)
h := HashFactory{HashType: Sha512_256}.NewHash()
a.NotNil(h)
a.Equal(Sha512_256Size, h.Size())
dgst := HashObj(TestingHashable{})
a.Equal(GenericHashObj(h, TestingHashable{}), dgst[:])
}
func TestEmptyHash(t *testing.T) {
partitiontest.PartitionTest(t)
a := require.New(t)
h := HashFactory{HashType: Sha512_256}
h.HashType = MaxHashType
hash := h.NewHash()
a.Equal(0, hash.Size())
a.Equal(0, hash.BlockSize())
var msg [4]byte
len, err := hash.Write(msg[:])
a.Equal(0, len)
a.Error(err)
a.Equal(0, hash.BlockSize())
var emptySlice []byte
a.Equal(emptySlice, hash.Sum(nil))
}
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