mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2024-12-22 11:41:19 +00:00
0be3044b7e
* rename * rename "make grpc" * rename "abi bindings templates" * rename "abi bindings templates"
936 lines
36 KiB
Go
936 lines
36 KiB
Go
// Copyright 2017 The go-ethereum Authors
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// This file is part of the go-ethereum library.
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//
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// The go-ethereum library is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// The go-ethereum library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
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//nolint:scopelint
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package abi
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import (
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"bytes"
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"encoding/hex"
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"fmt"
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"math/big"
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"reflect"
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"strconv"
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"strings"
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"testing"
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"github.com/ledgerwatch/erigon/common"
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"github.com/stretchr/testify/require"
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)
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// TestUnpack tests the general pack/unpack tests in packing_test.go
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func TestUnpack(t *testing.T) {
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for i, test := range packUnpackTests {
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t.Run(strconv.Itoa(i)+" "+test.def, func(t *testing.T) {
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//Unpack
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def := fmt.Sprintf(`[{ "name" : "method", "type": "function", "outputs": %s}]`, test.def)
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abi, err := JSON(strings.NewReader(def))
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if err != nil {
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t.Fatalf("invalid ABI definition %s: %v", def, err)
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}
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encb, err := hex.DecodeString(test.packed)
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if err != nil {
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t.Fatalf("invalid hex %s: %v", test.packed, err)
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}
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out, err := abi.Unpack("method", encb)
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if err != nil {
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t.Errorf("test %d (%v) failed: %v", i, test.def, err)
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return
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}
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if !reflect.DeepEqual(test.unpacked, ConvertType(out[0], test.unpacked)) {
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t.Errorf("test %d (%v) failed: expected %v, got %v", i, test.def, test.unpacked, out[0])
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}
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})
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}
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}
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type unpackTest struct {
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def string // ABI definition JSON
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enc string // evm return data
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want interface{} // the expected output
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err string // empty or error if expected
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}
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func (test unpackTest) checkError(err error) error {
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if err != nil {
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if len(test.err) == 0 {
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return fmt.Errorf("expected no err but got: %v", err)
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} else if err.Error() != test.err {
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return fmt.Errorf("expected err: '%v' got err: %q", test.err, err)
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}
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} else if len(test.err) > 0 {
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return fmt.Errorf("expected err: %v but got none", test.err)
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}
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return nil
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}
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var unpackTests = []unpackTest{
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// Bools
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{
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def: `[{ "type": "bool" }]`,
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enc: "0000000000000000000000000000000000000000000000000001000000000001",
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want: false,
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err: "abi: improperly encoded boolean value",
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},
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{
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def: `[{ "type": "bool" }]`,
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enc: "0000000000000000000000000000000000000000000000000000000000000003",
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want: false,
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err: "abi: improperly encoded boolean value",
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},
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// Integers
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{
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def: `[{"type": "uint32"}]`,
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enc: "0000000000000000000000000000000000000000000000000000000000000001",
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want: uint32(1),
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},
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{
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def: `[{"type": "uint32"}]`,
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enc: "0000000000000000000000000000000000000000000000000000000000000001",
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want: uint16(0),
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err: "abi: cannot unmarshal uint32 in to uint16",
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},
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{
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def: `[{"type": "uint17"}]`,
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enc: "0000000000000000000000000000000000000000000000000000000000000001",
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want: uint16(0),
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err: "abi: cannot unmarshal *big.Int in to uint16",
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},
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{
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def: `[{"type": "uint17"}]`,
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enc: "0000000000000000000000000000000000000000000000000000000000000001",
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want: big.NewInt(1),
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},
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{
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def: `[{"type": "int32"}]`,
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enc: "0000000000000000000000000000000000000000000000000000000000000001",
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want: int32(1),
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},
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{
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def: `[{"type": "int32"}]`,
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enc: "0000000000000000000000000000000000000000000000000000000000000001",
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want: int16(0),
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err: "abi: cannot unmarshal int32 in to int16",
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},
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{
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def: `[{"type": "int17"}]`,
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enc: "0000000000000000000000000000000000000000000000000000000000000001",
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want: int16(0),
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err: "abi: cannot unmarshal *big.Int in to int16",
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},
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{
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def: `[{"type": "bytes"}]`,
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enc: "000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200100000000000000000000000000000000000000000000000000000000000000",
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want: [32]byte{1},
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},
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{
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def: `[{"type": "bytes32"}]`,
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enc: "000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000200100000000000000000000000000000000000000000000000000000000000000",
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want: []byte(nil),
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err: "abi: cannot unmarshal [32]uint8 in to []uint8",
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},
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{
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def: `[{"name":"___","type":"int256"}]`,
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enc: "00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002",
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want: struct {
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IntOne *big.Int
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Intone *big.Int
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}{IntOne: big.NewInt(1)},
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},
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{
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def: `[{"name":"int_one","type":"int256"},{"name":"IntOne","type":"int256"}]`,
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enc: "00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002",
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want: struct {
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Int1 *big.Int
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Int2 *big.Int
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}{},
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err: "abi: multiple outputs mapping to the same struct field 'IntOne'",
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},
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{
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def: `[{"name":"int","type":"int256"},{"name":"Int","type":"int256"}]`,
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enc: "00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002",
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want: struct {
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Int1 *big.Int
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Int2 *big.Int
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}{},
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err: "abi: multiple outputs mapping to the same struct field 'Int'",
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},
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{
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def: `[{"name":"int","type":"int256"},{"name":"_int","type":"int256"}]`,
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enc: "00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002",
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want: struct {
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Int1 *big.Int
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Int2 *big.Int
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}{},
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err: "abi: multiple outputs mapping to the same struct field 'Int'",
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},
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{
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def: `[{"name":"Int","type":"int256"},{"name":"_int","type":"int256"}]`,
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enc: "00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002",
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want: struct {
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Int1 *big.Int
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Int2 *big.Int
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}{},
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err: "abi: multiple outputs mapping to the same struct field 'Int'",
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},
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{
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def: `[{"name":"Int","type":"int256"},{"name":"_","type":"int256"}]`,
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enc: "00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002",
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want: struct {
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Int1 *big.Int
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Int2 *big.Int
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}{},
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err: "abi: purely underscored output cannot unpack to struct",
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},
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// Make sure only the first argument is consumed
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{
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def: `[{"name":"int_one","type":"int256"}]`,
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enc: "00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002",
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want: struct {
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IntOne *big.Int
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}{big.NewInt(1)},
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},
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{
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def: `[{"name":"int__one","type":"int256"}]`,
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enc: "00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002",
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want: struct {
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IntOne *big.Int
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}{big.NewInt(1)},
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},
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{
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def: `[{"name":"int_one_","type":"int256"}]`,
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enc: "00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002",
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want: struct {
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IntOne *big.Int
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}{big.NewInt(1)},
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},
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}
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// TestLocalUnpackTests runs test specially designed only for unpacking.
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// All test cases that can be used to test packing and unpacking should move to packing_test.go
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func TestLocalUnpackTests(t *testing.T) {
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for i, test := range unpackTests {
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t.Run(strconv.Itoa(i), func(t *testing.T) {
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//Unpack
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//nolint:scopelint
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def := fmt.Sprintf(`[{ "name" : "method", "type": "function", "outputs": %s}]`, test.def)
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abi, err := JSON(strings.NewReader(def))
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if err != nil {
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t.Fatalf("invalid ABI definition %s: %v", def, err)
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}
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encb, err := hex.DecodeString(test.enc)
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if err != nil {
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t.Fatalf("invalid hex %s: %v", test.enc, err) //nolint:scopelint
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}
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outptr := reflect.New(reflect.TypeOf(test.want))
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err = abi.UnpackIntoInterface(outptr.Interface(), "method", encb)
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if err := test.checkError(err); err != nil {
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t.Errorf("test %d (%v) failed: %v", i, test.def, err)
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return
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}
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out := outptr.Elem().Interface()
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if !reflect.DeepEqual(test.want, out) {
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t.Errorf("test %d (%v) failed: expected %v, got %v", i, test.def, test.want, out)
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}
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})
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}
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}
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func TestUnpackIntoInterfaceSetDynamicArrayOutput(t *testing.T) {
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abi, err := JSON(strings.NewReader(`[{"constant":true,"inputs":[],"name":"testDynamicFixedBytes15","outputs":[{"name":"","type":"bytes15[]"}],"payable":false,"stateMutability":"view","type":"function"},{"constant":true,"inputs":[],"name":"testDynamicFixedBytes32","outputs":[{"name":"","type":"bytes32[]"}],"payable":false,"stateMutability":"view","type":"function"}]`))
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if err != nil {
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t.Fatal(err)
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}
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var (
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marshalledReturn32 = common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000230783132333435363738393000000000000000000000000000000000000000003078303938373635343332310000000000000000000000000000000000000000")
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marshalledReturn15 = common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000230783031323334350000000000000000000000000000000000000000000000003078393837363534000000000000000000000000000000000000000000000000")
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out32 [][32]byte
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out15 [][15]byte
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)
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// test 32
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err = abi.UnpackIntoInterface(&out32, "testDynamicFixedBytes32", marshalledReturn32)
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if err != nil {
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t.Fatal(err)
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}
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if len(out32) != 2 {
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t.Fatalf("expected array with 2 values, got %d", len(out32))
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}
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expected := common.Hex2Bytes("3078313233343536373839300000000000000000000000000000000000000000")
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if !bytes.Equal(out32[0][:], expected) {
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t.Errorf("expected %x, got %x\n", expected, out32[0])
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}
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expected = common.Hex2Bytes("3078303938373635343332310000000000000000000000000000000000000000")
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if !bytes.Equal(out32[1][:], expected) {
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t.Errorf("expected %x, got %x\n", expected, out32[1])
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}
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// test 15
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err = abi.UnpackIntoInterface(&out15, "testDynamicFixedBytes32", marshalledReturn15)
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if err != nil {
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t.Fatal(err)
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}
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if len(out15) != 2 {
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t.Fatalf("expected array with 2 values, got %d", len(out15))
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}
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expected = common.Hex2Bytes("307830313233343500000000000000")
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if !bytes.Equal(out15[0][:], expected) {
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t.Errorf("expected %x, got %x\n", expected, out15[0])
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}
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expected = common.Hex2Bytes("307839383736353400000000000000")
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if !bytes.Equal(out15[1][:], expected) {
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t.Errorf("expected %x, got %x\n", expected, out15[1])
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}
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}
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type methodMultiOutput struct {
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Int *big.Int
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String string
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}
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func methodMultiReturn(require *require.Assertions) (ABI, []byte, methodMultiOutput) {
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const definition = `[
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{ "name" : "multi", "type": "function", "outputs": [ { "name": "Int", "type": "uint256" }, { "name": "String", "type": "string" } ] }]`
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var expected = methodMultiOutput{big.NewInt(1), "hello"}
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abi, err := JSON(strings.NewReader(definition))
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require.NoError(err)
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// using buff to make the code readable
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buff := new(bytes.Buffer)
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buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001"))
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buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000040"))
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buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000005"))
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buff.Write(common.RightPadBytes([]byte(expected.String), 32))
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return abi, buff.Bytes(), expected
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}
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func TestMethodMultiReturn(t *testing.T) {
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type reversed struct {
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String string
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Int *big.Int
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}
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newInterfaceSlice := func(len int) interface{} {
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slice := make([]interface{}, len)
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return &slice
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}
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abi, data, expected := methodMultiReturn(require.New(t))
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bigint := new(big.Int)
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var testCases = []struct {
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dest interface{}
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expected interface{}
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error string
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name string
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}{{
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&methodMultiOutput{},
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&expected,
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"",
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"Can unpack into structure",
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}, {
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&reversed{},
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&reversed{expected.String, expected.Int},
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"",
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"Can unpack into reversed structure",
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}, {
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&[]interface{}{&bigint, new(string)},
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&[]interface{}{&expected.Int, &expected.String},
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"",
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"Can unpack into a slice",
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}, {
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&[2]interface{}{&bigint, new(string)},
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&[2]interface{}{&expected.Int, &expected.String},
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"",
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"Can unpack into an array",
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}, {
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&[2]interface{}{},
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&[2]interface{}{expected.Int, expected.String},
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"",
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"Can unpack into interface array",
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}, {
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newInterfaceSlice(2),
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&[]interface{}{expected.Int, expected.String},
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"",
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"Can unpack into interface slice",
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}, {
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&[]interface{}{new(int), new(int)},
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&[]interface{}{&expected.Int, &expected.String},
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"abi: cannot unmarshal *big.Int in to int",
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"Can not unpack into a slice with wrong types",
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}, {
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&[]interface{}{new(int)},
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&[]interface{}{},
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"abi: insufficient number of arguments for unpack, want 2, got 1",
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"Can not unpack into a slice with wrong types",
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}}
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for _, tc := range testCases {
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tc := tc
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t.Run(tc.name, func(t *testing.T) {
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require := require.New(t)
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err := abi.UnpackIntoInterface(tc.dest, "multi", data)
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if tc.error == "" {
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require.Nil(err, "Should be able to unpack method outputs.")
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require.Equal(tc.expected, tc.dest)
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} else {
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require.EqualError(err, tc.error)
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}
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})
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}
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}
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func TestMultiReturnWithArray(t *testing.T) {
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const definition = `[{"name" : "multi", "type": "function", "outputs": [{"type": "uint64[3]"}, {"type": "uint64"}]}]`
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abi, err := JSON(strings.NewReader(definition))
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if err != nil {
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t.Fatal(err)
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}
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buff := new(bytes.Buffer)
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buff.Write(common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000900000000000000000000000000000000000000000000000000000000000000090000000000000000000000000000000000000000000000000000000000000009"))
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buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000008"))
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ret1, ret1Exp := new([3]uint64), [3]uint64{9, 9, 9}
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ret2, ret2Exp := new(uint64), uint64(8)
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if err := abi.UnpackIntoInterface(&[]interface{}{ret1, ret2}, "multi", buff.Bytes()); err != nil {
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t.Fatal(err)
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}
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if !reflect.DeepEqual(*ret1, ret1Exp) {
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t.Error("array result", *ret1, "!= Expected", ret1Exp)
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}
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if *ret2 != ret2Exp {
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t.Error("int result", *ret2, "!= Expected", ret2Exp)
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}
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}
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func TestMultiReturnWithStringArray(t *testing.T) {
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const definition = `[{"name" : "multi", "type": "function", "outputs": [{"name": "","type": "uint256[3]"},{"name": "","type": "address"},{"name": "","type": "string[2]"},{"name": "","type": "bool"}]}]`
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abi, err := JSON(strings.NewReader(definition))
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if err != nil {
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t.Fatal(err)
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}
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buff := new(bytes.Buffer)
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buff.Write(common.Hex2Bytes("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"))
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temp, _ := big.NewInt(0).SetString("30000000000000000000", 10)
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ret1, ret1Exp := new([3]*big.Int), [3]*big.Int{big.NewInt(1545304298), big.NewInt(6), temp}
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ret2, ret2Exp := new(common.Address), common.HexToAddress("ab1257528b3782fb40d7ed5f72e624b744dffb2f")
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ret3, ret3Exp := new([2]string), [2]string{"Ethereum", "Hello, Ethereum!"}
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ret4, ret4Exp := new(bool), false
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if err := abi.UnpackIntoInterface(&[]interface{}{ret1, ret2, ret3, ret4}, "multi", buff.Bytes()); err != nil {
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t.Fatal(err)
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}
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if !reflect.DeepEqual(*ret1, ret1Exp) {
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t.Error("big.Int array result", *ret1, "!= Expected", ret1Exp)
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}
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if !reflect.DeepEqual(*ret2, ret2Exp) {
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t.Error("address result", *ret2, "!= Expected", ret2Exp)
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}
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if !reflect.DeepEqual(*ret3, ret3Exp) {
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t.Error("string array result", *ret3, "!= Expected", ret3Exp)
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}
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if !reflect.DeepEqual(*ret4, ret4Exp) {
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t.Error("bool result", *ret4, "!= Expected", ret4Exp)
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}
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}
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func TestMultiReturnWithStringSlice(t *testing.T) {
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const definition = `[{"name" : "multi", "type": "function", "outputs": [{"name": "","type": "string[]"},{"name": "","type": "uint256[]"}]}]`
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abi, err := JSON(strings.NewReader(definition))
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if err != nil {
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t.Fatal(err)
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}
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buff := new(bytes.Buffer)
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buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000040")) // output[0] offset
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buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000120")) // output[1] offset
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buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002")) // output[0] length
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buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000040")) // output[0][0] offset
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000080")) // output[0][1] offset
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000008")) // output[0][0] length
|
|
buff.Write(common.Hex2Bytes("657468657265756d000000000000000000000000000000000000000000000000")) // output[0][0] value
|
|
buff.Write(common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000b")) // output[0][1] length
|
|
buff.Write(common.Hex2Bytes("676f2d657468657265756d000000000000000000000000000000000000000000")) // output[0][1] value
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002")) // output[1] length
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000064")) // output[1][0] value
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000065")) // output[1][1] value
|
|
ret1, ret1Exp := new([]string), []string{"ethereum", "go-ethereum"}
|
|
ret2, ret2Exp := new([]*big.Int), []*big.Int{big.NewInt(100), big.NewInt(101)}
|
|
if err := abi.UnpackIntoInterface(&[]interface{}{ret1, ret2}, "multi", buff.Bytes()); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !reflect.DeepEqual(*ret1, ret1Exp) {
|
|
t.Error("string slice result", *ret1, "!= Expected", ret1Exp)
|
|
}
|
|
if !reflect.DeepEqual(*ret2, ret2Exp) {
|
|
t.Error("uint256 slice result", *ret2, "!= Expected", ret2Exp)
|
|
}
|
|
}
|
|
|
|
func TestMultiReturnWithDeeplyNestedArray(t *testing.T) {
|
|
// Similar to TestMultiReturnWithArray, but with a special case in mind:
|
|
// values of nested static arrays count towards the size as well, and any element following
|
|
// after such nested array argument should be read with the correct offset,
|
|
// so that it does not read content from the previous array argument.
|
|
const definition = `[{"name" : "multi", "type": "function", "outputs": [{"type": "uint64[3][2][4]"}, {"type": "uint64"}]}]`
|
|
abi, err := JSON(strings.NewReader(definition))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
buff := new(bytes.Buffer)
|
|
// construct the test array, each 3 char element is joined with 61 '0' chars,
|
|
// to from the ((3 + 61) * 0.5) = 32 byte elements in the array.
|
|
buff.Write(common.Hex2Bytes(strings.Join([]string{
|
|
"", //empty, to apply the 61-char separator to the first element as well.
|
|
"111", "112", "113", "121", "122", "123",
|
|
"211", "212", "213", "221", "222", "223",
|
|
"311", "312", "313", "321", "322", "323",
|
|
"411", "412", "413", "421", "422", "423",
|
|
}, "0000000000000000000000000000000000000000000000000000000000000")))
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000009876"))
|
|
|
|
ret1, ret1Exp := new([4][2][3]uint64), [4][2][3]uint64{
|
|
{{0x111, 0x112, 0x113}, {0x121, 0x122, 0x123}},
|
|
{{0x211, 0x212, 0x213}, {0x221, 0x222, 0x223}},
|
|
{{0x311, 0x312, 0x313}, {0x321, 0x322, 0x323}},
|
|
{{0x411, 0x412, 0x413}, {0x421, 0x422, 0x423}},
|
|
}
|
|
ret2, ret2Exp := new(uint64), uint64(0x9876)
|
|
if err := abi.UnpackIntoInterface(&[]interface{}{ret1, ret2}, "multi", buff.Bytes()); err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if !reflect.DeepEqual(*ret1, ret1Exp) {
|
|
t.Error("array result", *ret1, "!= Expected", ret1Exp)
|
|
}
|
|
if *ret2 != ret2Exp {
|
|
t.Error("int result", *ret2, "!= Expected", ret2Exp)
|
|
}
|
|
}
|
|
|
|
func TestUnmarshal(t *testing.T) {
|
|
const definition = `[
|
|
{ "name" : "int", "type": "function", "outputs": [ { "type": "uint256" } ] },
|
|
{ "name" : "bool", "type": "function", "outputs": [ { "type": "bool" } ] },
|
|
{ "name" : "bytes", "type": "function", "outputs": [ { "type": "bytes" } ] },
|
|
{ "name" : "fixed", "type": "function", "outputs": [ { "type": "bytes32" } ] },
|
|
{ "name" : "multi", "type": "function", "outputs": [ { "type": "bytes" }, { "type": "bytes" } ] },
|
|
{ "name" : "intArraySingle", "type": "function", "outputs": [ { "type": "uint256[3]" } ] },
|
|
{ "name" : "addressSliceSingle", "type": "function", "outputs": [ { "type": "address[]" } ] },
|
|
{ "name" : "addressSliceDouble", "type": "function", "outputs": [ { "name": "a", "type": "address[]" }, { "name": "b", "type": "address[]" } ] },
|
|
{ "name" : "mixedBytes", "type": "function", "stateMutability" : "view", "outputs": [ { "name": "a", "type": "bytes" }, { "name": "b", "type": "bytes32" } ] }]`
|
|
|
|
abi, err := JSON(strings.NewReader(definition))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
buff := new(bytes.Buffer)
|
|
|
|
// marshall mixed bytes (mixedBytes)
|
|
p0, p0Exp := []byte{}, common.Hex2Bytes("01020000000000000000")
|
|
p1, p1Exp := [32]byte{}, common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000ddeeff")
|
|
mixedBytes := []interface{}{&p0, &p1}
|
|
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000040"))
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000ddeeff"))
|
|
buff.Write(common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000a"))
|
|
buff.Write(common.Hex2Bytes("0102000000000000000000000000000000000000000000000000000000000000"))
|
|
|
|
err = abi.UnpackIntoInterface(&mixedBytes, "mixedBytes", buff.Bytes())
|
|
if err != nil {
|
|
t.Error(err)
|
|
} else {
|
|
if !bytes.Equal(p0, p0Exp) {
|
|
t.Errorf("unexpected value unpacked: want %x, got %x", p0Exp, p0)
|
|
}
|
|
|
|
if !bytes.Equal(p1[:], p1Exp) {
|
|
t.Errorf("unexpected value unpacked: want %x, got %x", p1Exp, p1)
|
|
}
|
|
}
|
|
|
|
// marshal int
|
|
var Int *big.Int
|
|
err = abi.UnpackIntoInterface(&Int, "int", common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001"))
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
if Int == nil || Int.Cmp(big.NewInt(1)) != 0 {
|
|
t.Error("expected Int to be 1 got", Int)
|
|
}
|
|
|
|
// marshal bool
|
|
var Bool bool
|
|
err = abi.UnpackIntoInterface(&Bool, "bool", common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001"))
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
if !Bool {
|
|
t.Error("expected Bool to be true")
|
|
}
|
|
|
|
// marshal dynamic bytes max length 32
|
|
buff.Reset()
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000020"))
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000020"))
|
|
bytesOut := common.RightPadBytes([]byte("hello"), 32)
|
|
buff.Write(bytesOut)
|
|
|
|
var Bytes []byte
|
|
err = abi.UnpackIntoInterface(&Bytes, "bytes", buff.Bytes())
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
if !bytes.Equal(Bytes, bytesOut) {
|
|
t.Errorf("expected %x got %x", bytesOut, Bytes)
|
|
}
|
|
|
|
// marshall dynamic bytes max length 64
|
|
buff.Reset()
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000020"))
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000040"))
|
|
bytesOut = common.RightPadBytes([]byte("hello"), 64)
|
|
buff.Write(bytesOut)
|
|
|
|
err = abi.UnpackIntoInterface(&Bytes, "bytes", buff.Bytes())
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
if !bytes.Equal(Bytes, bytesOut) {
|
|
t.Errorf("expected %x got %x", bytesOut, Bytes)
|
|
}
|
|
|
|
// marshall dynamic bytes max length 64
|
|
buff.Reset()
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000020"))
|
|
buff.Write(common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000003f"))
|
|
bytesOut = common.RightPadBytes([]byte("hello"), 64)
|
|
buff.Write(bytesOut)
|
|
|
|
err = abi.UnpackIntoInterface(&Bytes, "bytes", buff.Bytes())
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
if !bytes.Equal(Bytes, bytesOut[:len(bytesOut)-1]) {
|
|
t.Errorf("expected %x got %x", bytesOut[:len(bytesOut)-1], Bytes)
|
|
}
|
|
|
|
// marshal dynamic bytes output empty
|
|
err = abi.UnpackIntoInterface(&Bytes, "bytes", nil)
|
|
if err == nil {
|
|
t.Error("expected error")
|
|
}
|
|
|
|
// marshal dynamic bytes length 5
|
|
buff.Reset()
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000020"))
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000005"))
|
|
buff.Write(common.RightPadBytes([]byte("hello"), 32))
|
|
|
|
err = abi.UnpackIntoInterface(&Bytes, "bytes", buff.Bytes())
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
if !bytes.Equal(Bytes, []byte("hello")) {
|
|
t.Errorf("expected %x got %x", bytesOut, Bytes)
|
|
}
|
|
|
|
// marshal dynamic bytes length 5
|
|
buff.Reset()
|
|
buff.Write(common.RightPadBytes([]byte("hello"), 32))
|
|
|
|
var hash common.Hash
|
|
err = abi.UnpackIntoInterface(&hash, "fixed", buff.Bytes())
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
helloHash := common.BytesToHash(common.RightPadBytes([]byte("hello"), 32))
|
|
if hash != helloHash {
|
|
t.Errorf("Expected %x to equal %x", hash, helloHash)
|
|
}
|
|
|
|
// marshal error
|
|
buff.Reset()
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000020"))
|
|
err = abi.UnpackIntoInterface(&Bytes, "bytes", buff.Bytes())
|
|
if err == nil {
|
|
t.Error("expected error")
|
|
}
|
|
|
|
err = abi.UnpackIntoInterface(&Bytes, "multi", make([]byte, 64))
|
|
if err == nil {
|
|
t.Error("expected error")
|
|
}
|
|
|
|
buff.Reset()
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001"))
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"))
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000003"))
|
|
// marshal int array
|
|
var intArray [3]*big.Int
|
|
err = abi.UnpackIntoInterface(&intArray, "intArraySingle", buff.Bytes())
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
var testAgainstIntArray [3]*big.Int
|
|
testAgainstIntArray[0] = big.NewInt(1)
|
|
testAgainstIntArray[1] = big.NewInt(2)
|
|
testAgainstIntArray[2] = big.NewInt(3)
|
|
|
|
for i, Int := range intArray {
|
|
if Int.Cmp(testAgainstIntArray[i]) != 0 {
|
|
t.Errorf("expected %v, got %v", testAgainstIntArray[i], Int)
|
|
}
|
|
}
|
|
// marshal address slice
|
|
buff.Reset()
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000020")) // offset
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001")) // size
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000100000000000000000000000000000000000000"))
|
|
|
|
var outAddr []common.Address
|
|
err = abi.UnpackIntoInterface(&outAddr, "addressSliceSingle", buff.Bytes())
|
|
if err != nil {
|
|
t.Fatal("didn't expect error:", err)
|
|
}
|
|
|
|
if len(outAddr) != 1 {
|
|
t.Fatal("expected 1 item, got", len(outAddr))
|
|
}
|
|
|
|
if outAddr[0] != (common.Address{1}) {
|
|
t.Errorf("expected %x, got %x", common.Address{1}, outAddr[0])
|
|
}
|
|
|
|
// marshal multiple address slice
|
|
buff.Reset()
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000040")) // offset
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000080")) // offset
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001")) // size
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000100000000000000000000000000000000000000"))
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002")) // size
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000200000000000000000000000000000000000000"))
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000300000000000000000000000000000000000000"))
|
|
|
|
var outAddrStruct struct {
|
|
A []common.Address
|
|
B []common.Address
|
|
}
|
|
err = abi.UnpackIntoInterface(&outAddrStruct, "addressSliceDouble", buff.Bytes())
|
|
if err != nil {
|
|
t.Fatal("didn't expect error:", err)
|
|
}
|
|
|
|
if len(outAddrStruct.A) != 1 {
|
|
t.Fatal("expected 1 item, got", len(outAddrStruct.A))
|
|
}
|
|
|
|
if outAddrStruct.A[0] != (common.Address{1}) {
|
|
t.Errorf("expected %x, got %x", common.Address{1}, outAddrStruct.A[0])
|
|
}
|
|
|
|
if len(outAddrStruct.B) != 2 {
|
|
t.Fatal("expected 1 item, got", len(outAddrStruct.B))
|
|
}
|
|
|
|
if outAddrStruct.B[0] != (common.Address{2}) {
|
|
t.Errorf("expected %x, got %x", common.Address{2}, outAddrStruct.B[0])
|
|
}
|
|
if outAddrStruct.B[1] != (common.Address{3}) {
|
|
t.Errorf("expected %x, got %x", common.Address{3}, outAddrStruct.B[1])
|
|
}
|
|
|
|
// marshal invalid address slice
|
|
buff.Reset()
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000100"))
|
|
|
|
err = abi.UnpackIntoInterface(&outAddr, "addressSliceSingle", buff.Bytes())
|
|
if err == nil {
|
|
t.Fatal("expected error:", err)
|
|
}
|
|
}
|
|
|
|
func TestUnpackTuple(t *testing.T) {
|
|
const simpleTuple = `[{"name":"tuple","type":"function","outputs":[{"type":"tuple","name":"ret","components":[{"type":"int256","name":"a"},{"type":"int256","name":"b"}]}]}]`
|
|
abi, err := JSON(strings.NewReader(simpleTuple))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
buff := new(bytes.Buffer)
|
|
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001")) // ret[a] = 1
|
|
buff.Write(common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")) // ret[b] = -1
|
|
|
|
// If the result is single tuple, use struct as return value container directly.
|
|
v := struct {
|
|
A *big.Int
|
|
B *big.Int
|
|
}{new(big.Int), new(big.Int)}
|
|
|
|
err = abi.UnpackIntoInterface(&v, "tuple", buff.Bytes())
|
|
if err != nil {
|
|
t.Error(err)
|
|
} else {
|
|
if v.A.Cmp(big.NewInt(1)) != 0 {
|
|
t.Errorf("unexpected value unpacked: want %x, got %x", 1, v.A)
|
|
}
|
|
if v.B.Cmp(big.NewInt(-1)) != 0 {
|
|
t.Errorf("unexpected value unpacked: want %x, got %x", -1, v.B)
|
|
}
|
|
}
|
|
|
|
// Test nested tuple
|
|
const nestedTuple = `[{"name":"tuple","type":"function","outputs":[
|
|
{"type":"tuple","name":"s","components":[{"type":"uint256","name":"a"},{"type":"uint256[]","name":"b"},{"type":"tuple[]","name":"c","components":[{"name":"x", "type":"uint256"},{"name":"y","type":"uint256"}]}]},
|
|
{"type":"tuple","name":"t","components":[{"name":"x", "type":"uint256"},{"name":"y","type":"uint256"}]},
|
|
{"type":"uint256","name":"a"}
|
|
]}]`
|
|
|
|
abi, err = JSON(strings.NewReader(nestedTuple))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
buff.Reset()
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000080")) // s offset
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000000")) // t.X = 0
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001")) // t.Y = 1
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001")) // a = 1
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001")) // s.A = 1
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000060")) // s.B offset
|
|
buff.Write(common.Hex2Bytes("00000000000000000000000000000000000000000000000000000000000000c0")) // s.C offset
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002")) // s.B length
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001")) // s.B[0] = 1
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002")) // s.B[0] = 2
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002")) // s.C length
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001")) // s.C[0].X
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002")) // s.C[0].Y
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002")) // s.C[1].X
|
|
buff.Write(common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001")) // s.C[1].Y
|
|
|
|
type T struct {
|
|
X *big.Int `abi:"x"`
|
|
Z *big.Int `abi:"y"` // Test whether the abi tag works.
|
|
}
|
|
|
|
type S struct {
|
|
A *big.Int
|
|
B []*big.Int
|
|
C []T
|
|
}
|
|
|
|
type Ret struct {
|
|
FieldS S `abi:"s"`
|
|
FieldT T `abi:"t"`
|
|
A *big.Int
|
|
}
|
|
var ret Ret
|
|
var expected = Ret{
|
|
FieldS: S{
|
|
A: big.NewInt(1),
|
|
B: []*big.Int{big.NewInt(1), big.NewInt(2)},
|
|
C: []T{
|
|
{big.NewInt(1), big.NewInt(2)},
|
|
{big.NewInt(2), big.NewInt(1)},
|
|
},
|
|
},
|
|
FieldT: T{
|
|
big.NewInt(0), big.NewInt(1),
|
|
},
|
|
A: big.NewInt(1),
|
|
}
|
|
|
|
err = abi.UnpackIntoInterface(&ret, "tuple", buff.Bytes())
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
if reflect.DeepEqual(ret, expected) {
|
|
t.Error("unexpected unpack value")
|
|
}
|
|
}
|
|
|
|
func TestOOMMaliciousInput(t *testing.T) {
|
|
oomTests := []unpackTest{
|
|
{
|
|
def: `[{"type": "uint8[]"}]`,
|
|
enc: "0000000000000000000000000000000000000000000000000000000000000020" + // offset
|
|
"0000000000000000000000000000000000000000000000000000000000000003" + // num elems
|
|
"0000000000000000000000000000000000000000000000000000000000000001" + // elem 1
|
|
"0000000000000000000000000000000000000000000000000000000000000002", // elem 2
|
|
},
|
|
{ // Length larger than 64 bits
|
|
def: `[{"type": "uint8[]"}]`,
|
|
enc: "0000000000000000000000000000000000000000000000000000000000000020" + // offset
|
|
"00ffffffffffffffffffffffffffffffffffffffffffffff0000000000000002" + // num elems
|
|
"0000000000000000000000000000000000000000000000000000000000000001" + // elem 1
|
|
"0000000000000000000000000000000000000000000000000000000000000002", // elem 2
|
|
},
|
|
{ // Offset very large (over 64 bits)
|
|
def: `[{"type": "uint8[]"}]`,
|
|
enc: "00ffffffffffffffffffffffffffffffffffffffffffffff0000000000000020" + // offset
|
|
"0000000000000000000000000000000000000000000000000000000000000002" + // num elems
|
|
"0000000000000000000000000000000000000000000000000000000000000001" + // elem 1
|
|
"0000000000000000000000000000000000000000000000000000000000000002", // elem 2
|
|
},
|
|
{ // Offset very large (below 64 bits)
|
|
def: `[{"type": "uint8[]"}]`,
|
|
enc: "0000000000000000000000000000000000000000000000007ffffffffff00020" + // offset
|
|
"0000000000000000000000000000000000000000000000000000000000000002" + // num elems
|
|
"0000000000000000000000000000000000000000000000000000000000000001" + // elem 1
|
|
"0000000000000000000000000000000000000000000000000000000000000002", // elem 2
|
|
},
|
|
{ // Offset negative (as 64 bit)
|
|
def: `[{"type": "uint8[]"}]`,
|
|
enc: "000000000000000000000000000000000000000000000000f000000000000020" + // offset
|
|
"0000000000000000000000000000000000000000000000000000000000000002" + // num elems
|
|
"0000000000000000000000000000000000000000000000000000000000000001" + // elem 1
|
|
"0000000000000000000000000000000000000000000000000000000000000002", // elem 2
|
|
},
|
|
|
|
{ // Negative length
|
|
def: `[{"type": "uint8[]"}]`,
|
|
enc: "0000000000000000000000000000000000000000000000000000000000000020" + // offset
|
|
"000000000000000000000000000000000000000000000000f000000000000002" + // num elems
|
|
"0000000000000000000000000000000000000000000000000000000000000001" + // elem 1
|
|
"0000000000000000000000000000000000000000000000000000000000000002", // elem 2
|
|
},
|
|
{ // Very large length
|
|
def: `[{"type": "uint8[]"}]`,
|
|
enc: "0000000000000000000000000000000000000000000000000000000000000020" + // offset
|
|
"0000000000000000000000000000000000000000000000007fffffffff000002" + // num elems
|
|
"0000000000000000000000000000000000000000000000000000000000000001" + // elem 1
|
|
"0000000000000000000000000000000000000000000000000000000000000002", // elem 2
|
|
},
|
|
}
|
|
for i, test := range oomTests {
|
|
def := fmt.Sprintf(`[{ "name" : "method", "type": "function", "outputs": %s}]`, test.def)
|
|
abi, err := JSON(strings.NewReader(def))
|
|
if err != nil {
|
|
t.Fatalf("invalid ABI definition %s: %v", def, err)
|
|
}
|
|
encb, err := hex.DecodeString(test.enc)
|
|
if err != nil {
|
|
t.Fatalf("invalid hex: %s" + test.enc)
|
|
}
|
|
_, err = abi.Methods["method"].Outputs.UnpackValues(encb)
|
|
if err == nil {
|
|
t.Fatalf("Expected error on malicious input, test %d", i)
|
|
}
|
|
}
|
|
}
|