package pkg import ( "crypto/rand" "crypto/sha256" "testing" "github.com/nspcc-dev/neofs-api-go/v2/refs" "github.com/stretchr/testify/require" ) func randSHA256(t *testing.T) [sha256.Size]byte { cSHA256 := [sha256.Size]byte{} _, err := rand.Read(cSHA256[:]) require.NoError(t, err) return cSHA256 } func TestChecksum(t *testing.T) { c := NewChecksum() cSHA256 := [sha256.Size]byte{} _, _ = rand.Read(cSHA256[:]) c.SetSHA256(cSHA256) require.Equal(t, ChecksumSHA256, c.GetType()) require.Equal(t, cSHA256[:], c.GetSum()) cV2 := c.ToV2() require.Equal(t, refs.SHA256, cV2.GetType()) require.Equal(t, cSHA256[:], cV2.GetSum()) cTZ := [64]byte{} _, _ = rand.Read(cSHA256[:]) c.SetTillichZemor(cTZ) require.Equal(t, ChecksumTZ, c.GetType()) require.Equal(t, cTZ[:], c.GetSum()) cV2 = c.ToV2() require.Equal(t, refs.TillichZemor, cV2.GetType()) require.Equal(t, cTZ[:], cV2.GetSum()) } func TestEqualChecksums(t *testing.T) { require.True(t, EqualChecksums(nil, nil)) csSHA := [sha256.Size]byte{} _, _ = rand.Read(csSHA[:]) cs1 := NewChecksum() cs1.SetSHA256(csSHA) cs2 := NewChecksum() cs2.SetSHA256(csSHA) require.True(t, EqualChecksums(cs1, cs2)) csSHA[0]++ cs2.SetSHA256(csSHA) require.False(t, EqualChecksums(cs1, cs2)) } func TestChecksumEncoding(t *testing.T) { cs := NewChecksum() cs.SetSHA256(randSHA256(t)) t.Run("binary", func(t *testing.T) { data, err := cs.Marshal() require.NoError(t, err) c2 := NewChecksum() require.NoError(t, c2.Unmarshal(data)) require.Equal(t, cs, c2) }) t.Run("json", func(t *testing.T) { data, err := cs.MarshalJSON() require.NoError(t, err) cs2 := NewChecksum() require.NoError(t, cs2.UnmarshalJSON(data)) require.Equal(t, cs, cs2) }) }