217 lines
8.2 KiB
Go
217 lines
8.2 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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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"
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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/ethereum/go-ethereum/common"
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)
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// TestPack tests the general pack/unpack tests in packing_test.go
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func TestPack(t *testing.T) {
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t.Parallel()
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for i, test := range packUnpackTests {
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i, test := i, test
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t.Run(strconv.Itoa(i), func(t *testing.T) {
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t.Parallel()
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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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inDef := fmt.Sprintf(`[{ "name" : "method", "type": "function", "inputs": %s}]`, test.def)
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inAbi, err := JSON(strings.NewReader(inDef))
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if err != nil {
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t.Fatalf("invalid ABI definition %s, %v", inDef, err)
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}
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var packed []byte
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packed, err = inAbi.Pack("method", test.unpacked)
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if err != nil {
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t.Fatalf("test %d (%v) failed: %v", i, test.def, err)
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}
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if !reflect.DeepEqual(packed[4:], encb) {
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t.Errorf("test %d (%v) failed: expected %v, got %v", i, test.def, encb, packed[4:])
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}
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})
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}
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}
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func TestMethodPack(t *testing.T) {
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t.Parallel()
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abi, err := JSON(strings.NewReader(jsondata))
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if err != nil {
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t.Fatal(err)
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}
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sig := abi.Methods["slice"].ID
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sig = append(sig, common.LeftPadBytes([]byte{1}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
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packed, err := abi.Pack("slice", []uint32{1, 2})
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if err != nil {
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t.Error(err)
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}
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if !bytes.Equal(packed, sig) {
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t.Errorf("expected %x got %x", sig, packed)
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}
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var addrA, addrB = common.Address{1}, common.Address{2}
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sig = abi.Methods["sliceAddress"].ID
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sig = append(sig, common.LeftPadBytes([]byte{32}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
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sig = append(sig, common.LeftPadBytes(addrA[:], 32)...)
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sig = append(sig, common.LeftPadBytes(addrB[:], 32)...)
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packed, err = abi.Pack("sliceAddress", []common.Address{addrA, addrB})
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if err != nil {
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t.Fatal(err)
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}
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if !bytes.Equal(packed, sig) {
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t.Errorf("expected %x got %x", sig, packed)
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}
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var addrC, addrD = common.Address{3}, common.Address{4}
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sig = abi.Methods["sliceMultiAddress"].ID
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sig = append(sig, common.LeftPadBytes([]byte{64}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{160}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
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sig = append(sig, common.LeftPadBytes(addrA[:], 32)...)
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sig = append(sig, common.LeftPadBytes(addrB[:], 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
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sig = append(sig, common.LeftPadBytes(addrC[:], 32)...)
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sig = append(sig, common.LeftPadBytes(addrD[:], 32)...)
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packed, err = abi.Pack("sliceMultiAddress", []common.Address{addrA, addrB}, []common.Address{addrC, addrD})
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if err != nil {
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t.Fatal(err)
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}
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if !bytes.Equal(packed, sig) {
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t.Errorf("expected %x got %x", sig, packed)
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}
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sig = abi.Methods["slice256"].ID
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sig = append(sig, common.LeftPadBytes([]byte{1}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
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packed, err = abi.Pack("slice256", []*big.Int{big.NewInt(1), big.NewInt(2)})
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if err != nil {
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t.Error(err)
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}
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if !bytes.Equal(packed, sig) {
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t.Errorf("expected %x got %x", sig, packed)
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}
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a := [2][2]*big.Int{{big.NewInt(1), big.NewInt(1)}, {big.NewInt(2), big.NewInt(0)}}
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sig = abi.Methods["nestedArray"].ID
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sig = append(sig, common.LeftPadBytes([]byte{1}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{1}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{0}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{0xa0}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
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sig = append(sig, common.LeftPadBytes(addrC[:], 32)...)
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sig = append(sig, common.LeftPadBytes(addrD[:], 32)...)
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packed, err = abi.Pack("nestedArray", a, []common.Address{addrC, addrD})
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if err != nil {
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t.Fatal(err)
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}
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if !bytes.Equal(packed, sig) {
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t.Errorf("expected %x got %x", sig, packed)
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}
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sig = abi.Methods["nestedArray2"].ID
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sig = append(sig, common.LeftPadBytes([]byte{0x20}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{0x40}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{0x80}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{1}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{1}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{1}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{1}, 32)...)
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packed, err = abi.Pack("nestedArray2", [2][]uint8{{1}, {1}})
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if err != nil {
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t.Fatal(err)
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}
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if !bytes.Equal(packed, sig) {
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t.Errorf("expected %x got %x", sig, packed)
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}
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sig = abi.Methods["nestedSlice"].ID
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sig = append(sig, common.LeftPadBytes([]byte{0x20}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{0x02}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{0x40}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{0xa0}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{1}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{1}, 32)...)
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sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
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packed, err = abi.Pack("nestedSlice", [][]uint8{{1, 2}, {1, 2}})
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if err != nil {
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t.Fatal(err)
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}
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if !bytes.Equal(packed, sig) {
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t.Errorf("expected %x got %x", sig, packed)
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}
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}
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func TestPackNumber(t *testing.T) {
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t.Parallel()
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tests := []struct {
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value reflect.Value
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packed []byte
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}{
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// Protocol limits
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{reflect.ValueOf(0), common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000000")},
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{reflect.ValueOf(1), common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001")},
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{reflect.ValueOf(-1), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")},
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// Type corner cases
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{reflect.ValueOf(uint8(math.MaxUint8)), common.Hex2Bytes("00000000000000000000000000000000000000000000000000000000000000ff")},
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{reflect.ValueOf(uint16(math.MaxUint16)), common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000ffff")},
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{reflect.ValueOf(uint32(math.MaxUint32)), common.Hex2Bytes("00000000000000000000000000000000000000000000000000000000ffffffff")},
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{reflect.ValueOf(uint64(math.MaxUint64)), common.Hex2Bytes("000000000000000000000000000000000000000000000000ffffffffffffffff")},
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{reflect.ValueOf(int8(math.MaxInt8)), common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000007f")},
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{reflect.ValueOf(int16(math.MaxInt16)), common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000007fff")},
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{reflect.ValueOf(int32(math.MaxInt32)), common.Hex2Bytes("000000000000000000000000000000000000000000000000000000007fffffff")},
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{reflect.ValueOf(int64(math.MaxInt64)), common.Hex2Bytes("0000000000000000000000000000000000000000000000007fffffffffffffff")},
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{reflect.ValueOf(int8(math.MinInt8)), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff80")},
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{reflect.ValueOf(int16(math.MinInt16)), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff8000")},
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{reflect.ValueOf(int32(math.MinInt32)), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffff80000000")},
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{reflect.ValueOf(int64(math.MinInt64)), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffff8000000000000000")},
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}
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for i, tt := range tests {
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packed := packNum(tt.value)
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if !bytes.Equal(packed, tt.packed) {
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t.Errorf("test %d: pack mismatch: have %x, want %x", i, packed, tt.packed)
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}
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}
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}
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