package crypto import ( "encoding/hex" "testing" "github.com/nspcc-dev/neo-go/pkg/core/interop" "github.com/nspcc-dev/neo-go/pkg/io" "github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger" "github.com/nspcc-dev/neo-go/pkg/vm" "github.com/nspcc-dev/neo-go/pkg/vm/emit" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" ) func TestSHA256(t *testing.T) { // 0x0100 hashes to 47dc540c94ceb704a23875c11273e16bb0b8a87aed84de911f2133568115f254 res := "47dc540c94ceb704a23875c11273e16bb0b8a87aed84de911f2133568115f254" buf := io.NewBufBinWriter() emit.Bytes(buf.BinWriter, []byte{1, 0}) emit.Syscall(buf.BinWriter, "Neo.Crypto.SHA256") prog := buf.Bytes() v := vm.New() ic := &interop.Context{Trigger: trigger.Verification} v.RegisterInteropGetter(GetInterop(ic)) v.Load(prog) require.NoError(t, v.Run()) assert.Equal(t, 1, v.Estack().Len()) assert.Equal(t, res, hex.EncodeToString(v.Estack().Pop().Bytes())) }