package payload import ( "encoding/hex" "testing" "github.com/CityOfZion/neo-go/pkg/core/block" "github.com/CityOfZion/neo-go/pkg/core/transaction" "github.com/CityOfZion/neo-go/pkg/io" "github.com/stretchr/testify/assert" ) func TestHeadersEncodeDecode(t *testing.T) { t.Run("normal case", func(t *testing.T) { headers := newTestHeaders(3) testHeadersEncodeDecode(t, headers, 3, false) }) t.Run("more than max", func(t *testing.T) { const sent = MaxHeadersAllowed + 1 headers := newTestHeaders(sent) testHeadersEncodeDecode(t, headers, MaxHeadersAllowed, true) }) } func newTestHeaders(n int) *Headers { headers := &Headers{Hdrs: make([]*block.Header, n)} for i := range headers.Hdrs { headers.Hdrs[i] = &block.Header{ Base: block.Base{ Index: uint32(i + 1), Script: transaction.Witness{ InvocationScript: []byte{0x0}, VerificationScript: []byte{0x1}, }, }, } } return headers } func testHeadersEncodeDecode(t *testing.T, headers *Headers, expected int, limit bool) { buf := io.NewBufBinWriter() headers.EncodeBinary(buf.BinWriter) assert.Nil(t, buf.Err) b := buf.Bytes() r := io.NewBinReaderFromBuf(b) headersDecode := &Headers{} headersDecode.DecodeBinary(r) var err error if limit { err = ErrTooManyHeaders } assert.Equal(t, err, r.Err) assert.Equal(t, expected, len(headersDecode.Hdrs)) for i := 0; i < len(headersDecode.Hdrs); i++ { assert.Equal(t, headers.Hdrs[i].Version, headersDecode.Hdrs[i].Version) assert.Equal(t, headers.Hdrs[i].Index, headersDecode.Hdrs[i].Index) assert.Equal(t, headers.Hdrs[i].Script, headersDecode.Hdrs[i].Script) } } func TestBinEncodeDecode(t *testing.T) { rawBlockHeaders := "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" var headerMsg Headers rawBlockBytes, _ := hex.DecodeString(rawBlockHeaders) r := io.NewBinReaderFromBuf(rawBlockBytes) headerMsg.DecodeBinary(r) assert.Nil(t, r.Err) assert.Equal(t, 1, len(headerMsg.Hdrs)) header := headerMsg.Hdrs[0] hash := header.Hash() assert.Equal(t, "f3c4ec44c07eccbda974f1ee34bc6654ab6d3f22cd89c2e5c593a16d6cc7e6e8", hash.StringLE()) buf := io.NewBufBinWriter() headerMsg.EncodeBinary(buf.BinWriter) assert.Equal(t, nil, buf.Err) assert.Equal(t, hex.EncodeToString(rawBlockBytes), hex.EncodeToString(buf.Bytes())) }