644 lines
22 KiB
Go
644 lines
22 KiB
Go
// Copyright 2015 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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"log"
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"math/big"
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"reflect"
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"strings"
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"testing"
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"github.com/ethereum/go-ethereum/common"
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"github.com/ethereum/go-ethereum/crypto"
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)
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const jsondata = `
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[
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{ "type" : "function", "name" : "balance", "constant" : true },
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{ "type" : "function", "name" : "send", "constant" : false, "inputs" : [ { "name" : "amount", "type" : "uint256" } ] }
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]`
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const jsondata2 = `
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[
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{ "type" : "function", "name" : "balance", "constant" : true },
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{ "type" : "function", "name" : "send", "constant" : false, "inputs" : [ { "name" : "amount", "type" : "uint256" } ] },
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{ "type" : "function", "name" : "test", "constant" : false, "inputs" : [ { "name" : "number", "type" : "uint32" } ] },
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{ "type" : "function", "name" : "string", "constant" : false, "inputs" : [ { "name" : "inputs", "type" : "string" } ] },
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{ "type" : "function", "name" : "bool", "constant" : false, "inputs" : [ { "name" : "inputs", "type" : "bool" } ] },
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{ "type" : "function", "name" : "address", "constant" : false, "inputs" : [ { "name" : "inputs", "type" : "address" } ] },
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{ "type" : "function", "name" : "uint64[2]", "constant" : false, "inputs" : [ { "name" : "inputs", "type" : "uint64[2]" } ] },
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{ "type" : "function", "name" : "uint64[]", "constant" : false, "inputs" : [ { "name" : "inputs", "type" : "uint64[]" } ] },
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{ "type" : "function", "name" : "foo", "constant" : false, "inputs" : [ { "name" : "inputs", "type" : "uint32" } ] },
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{ "type" : "function", "name" : "bar", "constant" : false, "inputs" : [ { "name" : "inputs", "type" : "uint32" }, { "name" : "string", "type" : "uint16" } ] },
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{ "type" : "function", "name" : "slice", "constant" : false, "inputs" : [ { "name" : "inputs", "type" : "uint32[2]" } ] },
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{ "type" : "function", "name" : "slice256", "constant" : false, "inputs" : [ { "name" : "inputs", "type" : "uint256[2]" } ] },
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{ "type" : "function", "name" : "sliceAddress", "constant" : false, "inputs" : [ { "name" : "inputs", "type" : "address[]" } ] },
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{ "type" : "function", "name" : "sliceMultiAddress", "constant" : false, "inputs" : [ { "name" : "a", "type" : "address[]" }, { "name" : "b", "type" : "address[]" } ] }
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]`
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func TestReader(t *testing.T) {
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Uint256, _ := NewType("uint256")
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exp := ABI{
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Methods: map[string]Method{
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"balance": {
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"balance", true, nil, nil,
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},
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"send": {
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"send", false, []Argument{
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{"amount", Uint256, false},
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}, nil,
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},
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},
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}
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abi, err := JSON(strings.NewReader(jsondata))
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if err != nil {
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t.Error(err)
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}
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// deep equal fails for some reason
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t.Skip()
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if !reflect.DeepEqual(abi, exp) {
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t.Errorf("\nabi: %v\ndoes not match exp: %v", abi, exp)
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}
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}
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func TestTestNumbers(t *testing.T) {
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abi, err := JSON(strings.NewReader(jsondata2))
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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if _, err := abi.Pack("balance"); err != nil {
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t.Error(err)
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}
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if _, err := abi.Pack("balance", 1); err == nil {
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t.Error("expected error for balance(1)")
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}
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if _, err := abi.Pack("doesntexist", nil); err == nil {
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t.Errorf("doesntexist shouldn't exist")
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}
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if _, err := abi.Pack("doesntexist", 1); err == nil {
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t.Errorf("doesntexist(1) shouldn't exist")
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}
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if _, err := abi.Pack("send", big.NewInt(1000)); err != nil {
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t.Error(err)
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}
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i := new(int)
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*i = 1000
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if _, err := abi.Pack("send", i); err == nil {
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t.Errorf("expected send( ptr ) to throw, requires *big.Int instead of *int")
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}
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if _, err := abi.Pack("test", uint32(1000)); err != nil {
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t.Error(err)
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}
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}
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func TestTestString(t *testing.T) {
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abi, err := JSON(strings.NewReader(jsondata2))
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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if _, err := abi.Pack("string", "hello world"); err != nil {
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t.Error(err)
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}
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}
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func TestTestBool(t *testing.T) {
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abi, err := JSON(strings.NewReader(jsondata2))
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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if _, err := abi.Pack("bool", true); err != nil {
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t.Error(err)
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}
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}
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func TestTestSlice(t *testing.T) {
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abi, err := JSON(strings.NewReader(jsondata2))
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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slice := make([]uint64, 2)
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if _, err := abi.Pack("uint64[2]", slice); err != nil {
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t.Error(err)
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}
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if _, err := abi.Pack("uint64[]", slice); err != nil {
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t.Error(err)
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}
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}
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func TestMethodSignature(t *testing.T) {
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String, _ := NewType("string")
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m := Method{"foo", false, []Argument{{"bar", String, false}, {"baz", String, false}}, nil}
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exp := "foo(string,string)"
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if m.Sig() != exp {
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t.Error("signature mismatch", exp, "!=", m.Sig())
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}
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idexp := crypto.Keccak256([]byte(exp))[:4]
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if !bytes.Equal(m.Id(), idexp) {
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t.Errorf("expected ids to match %x != %x", m.Id(), idexp)
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}
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uintt, _ := NewType("uint256")
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m = Method{"foo", false, []Argument{{"bar", uintt, false}}, nil}
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exp = "foo(uint256)"
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if m.Sig() != exp {
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t.Error("signature mismatch", exp, "!=", m.Sig())
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}
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}
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func TestMultiPack(t *testing.T) {
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abi, err := JSON(strings.NewReader(jsondata2))
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if err != nil {
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t.Error(err)
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t.FailNow()
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}
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sig := crypto.Keccak256([]byte("bar(uint32,uint16)"))[:4]
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sig = append(sig, make([]byte, 64)...)
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sig[35] = 10
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sig[67] = 11
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packed, err := abi.Pack("bar", uint32(10), uint16(11))
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if err != nil {
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t.Error(err)
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t.FailNow()
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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 ExampleJSON() {
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const definition = `[{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"isBar","outputs":[{"name":"","type":"bool"}],"type":"function"}]`
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abi, err := JSON(strings.NewReader(definition))
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if err != nil {
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log.Fatalln(err)
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}
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out, err := abi.Pack("isBar", common.HexToAddress("01"))
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if err != nil {
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log.Fatalln(err)
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}
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fmt.Printf("%x\n", out)
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// Output:
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// 1f2c40920000000000000000000000000000000000000000000000000000000000000001
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}
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func TestInputVariableInputLength(t *testing.T) {
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const definition = `[
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{ "type" : "function", "name" : "strOne", "constant" : true, "inputs" : [ { "name" : "str", "type" : "string" } ] },
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{ "type" : "function", "name" : "bytesOne", "constant" : true, "inputs" : [ { "name" : "str", "type" : "bytes" } ] },
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{ "type" : "function", "name" : "strTwo", "constant" : true, "inputs" : [ { "name" : "str", "type" : "string" }, { "name" : "str1", "type" : "string" } ] }
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]`
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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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// test one string
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strin := "hello world"
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strpack, err := abi.Pack("strOne", strin)
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if err != nil {
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t.Error(err)
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}
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offset := make([]byte, 32)
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offset[31] = 32
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length := make([]byte, 32)
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length[31] = byte(len(strin))
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value := common.RightPadBytes([]byte(strin), 32)
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exp := append(offset, append(length, value...)...)
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// ignore first 4 bytes of the output. This is the function identifier
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strpack = strpack[4:]
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if !bytes.Equal(strpack, exp) {
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t.Errorf("expected %x, got %x\n", exp, strpack)
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}
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// test one bytes
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btspack, err := abi.Pack("bytesOne", []byte(strin))
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if err != nil {
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t.Error(err)
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}
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// ignore first 4 bytes of the output. This is the function identifier
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btspack = btspack[4:]
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if !bytes.Equal(btspack, exp) {
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t.Errorf("expected %x, got %x\n", exp, btspack)
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}
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// test two strings
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str1 := "hello"
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str2 := "world"
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str2pack, err := abi.Pack("strTwo", str1, str2)
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if err != nil {
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t.Error(err)
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}
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offset1 := make([]byte, 32)
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offset1[31] = 64
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length1 := make([]byte, 32)
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length1[31] = byte(len(str1))
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value1 := common.RightPadBytes([]byte(str1), 32)
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offset2 := make([]byte, 32)
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offset2[31] = 128
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length2 := make([]byte, 32)
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length2[31] = byte(len(str2))
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value2 := common.RightPadBytes([]byte(str2), 32)
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exp2 := append(offset1, offset2...)
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exp2 = append(exp2, append(length1, value1...)...)
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exp2 = append(exp2, append(length2, value2...)...)
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// ignore first 4 bytes of the output. This is the function identifier
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str2pack = str2pack[4:]
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if !bytes.Equal(str2pack, exp2) {
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t.Errorf("expected %x, got %x\n", exp, str2pack)
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}
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// test two strings, first > 32, second < 32
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str1 = strings.Repeat("a", 33)
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str2pack, err = abi.Pack("strTwo", str1, str2)
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if err != nil {
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t.Error(err)
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}
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offset1 = make([]byte, 32)
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offset1[31] = 64
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length1 = make([]byte, 32)
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length1[31] = byte(len(str1))
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value1 = common.RightPadBytes([]byte(str1), 64)
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offset2[31] = 160
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exp2 = append(offset1, offset2...)
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exp2 = append(exp2, append(length1, value1...)...)
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exp2 = append(exp2, append(length2, value2...)...)
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// ignore first 4 bytes of the output. This is the function identifier
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str2pack = str2pack[4:]
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if !bytes.Equal(str2pack, exp2) {
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t.Errorf("expected %x, got %x\n", exp, str2pack)
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}
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// test two strings, first > 32, second >32
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str1 = strings.Repeat("a", 33)
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str2 = strings.Repeat("a", 33)
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str2pack, err = abi.Pack("strTwo", str1, str2)
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if err != nil {
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t.Error(err)
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}
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offset1 = make([]byte, 32)
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offset1[31] = 64
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length1 = make([]byte, 32)
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length1[31] = byte(len(str1))
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value1 = common.RightPadBytes([]byte(str1), 64)
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offset2 = make([]byte, 32)
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offset2[31] = 160
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length2 = make([]byte, 32)
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length2[31] = byte(len(str2))
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value2 = common.RightPadBytes([]byte(str2), 64)
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exp2 = append(offset1, offset2...)
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exp2 = append(exp2, append(length1, value1...)...)
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exp2 = append(exp2, append(length2, value2...)...)
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// ignore first 4 bytes of the output. This is the function identifier
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str2pack = str2pack[4:]
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if !bytes.Equal(str2pack, exp2) {
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t.Errorf("expected %x, got %x\n", exp, str2pack)
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}
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}
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func TestInputFixedArrayAndVariableInputLength(t *testing.T) {
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const definition = `[
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{ "type" : "function", "name" : "fixedArrStr", "constant" : true, "inputs" : [ { "name" : "str", "type" : "string" }, { "name" : "fixedArr", "type" : "uint256[2]" } ] },
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{ "type" : "function", "name" : "fixedArrBytes", "constant" : true, "inputs" : [ { "name" : "str", "type" : "bytes" }, { "name" : "fixedArr", "type" : "uint256[2]" } ] },
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{ "type" : "function", "name" : "mixedArrStr", "constant" : true, "inputs" : [ { "name" : "str", "type" : "string" }, { "name" : "fixedArr", "type": "uint256[2]" }, { "name" : "dynArr", "type": "uint256[]" } ] },
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{ "type" : "function", "name" : "doubleFixedArrStr", "constant" : true, "inputs" : [ { "name" : "str", "type" : "string" }, { "name" : "fixedArr1", "type": "uint256[2]" }, { "name" : "fixedArr2", "type": "uint256[3]" } ] },
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{ "type" : "function", "name" : "multipleMixedArrStr", "constant" : true, "inputs" : [ { "name" : "str", "type" : "string" }, { "name" : "fixedArr1", "type": "uint256[2]" }, { "name" : "dynArr", "type" : "uint256[]" }, { "name" : "fixedArr2", "type" : "uint256[3]" } ] }
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]`
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abi, err := JSON(strings.NewReader(definition))
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if err != nil {
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t.Error(err)
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}
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// test string, fixed array uint256[2]
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strin := "hello world"
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arrin := [2]*big.Int{big.NewInt(1), big.NewInt(2)}
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fixedArrStrPack, err := abi.Pack("fixedArrStr", strin, arrin)
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if err != nil {
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t.Error(err)
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}
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// generate expected output
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offset := make([]byte, 32)
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offset[31] = 96
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length := make([]byte, 32)
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length[31] = byte(len(strin))
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strvalue := common.RightPadBytes([]byte(strin), 32)
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arrinvalue1 := common.LeftPadBytes(arrin[0].Bytes(), 32)
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arrinvalue2 := common.LeftPadBytes(arrin[1].Bytes(), 32)
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exp := append(offset, arrinvalue1...)
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exp = append(exp, arrinvalue2...)
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exp = append(exp, append(length, strvalue...)...)
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// ignore first 4 bytes of the output. This is the function identifier
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fixedArrStrPack = fixedArrStrPack[4:]
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if !bytes.Equal(fixedArrStrPack, exp) {
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t.Errorf("expected %x, got %x\n", exp, fixedArrStrPack)
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}
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// test byte array, fixed array uint256[2]
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bytesin := []byte(strin)
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arrin = [2]*big.Int{big.NewInt(1), big.NewInt(2)}
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fixedArrBytesPack, err := abi.Pack("fixedArrBytes", bytesin, arrin)
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if err != nil {
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t.Error(err)
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}
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// generate expected output
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offset = make([]byte, 32)
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offset[31] = 96
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length = make([]byte, 32)
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length[31] = byte(len(strin))
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strvalue = common.RightPadBytes([]byte(strin), 32)
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arrinvalue1 = common.LeftPadBytes(arrin[0].Bytes(), 32)
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arrinvalue2 = common.LeftPadBytes(arrin[1].Bytes(), 32)
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exp = append(offset, arrinvalue1...)
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exp = append(exp, arrinvalue2...)
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exp = append(exp, append(length, strvalue...)...)
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// ignore first 4 bytes of the output. This is the function identifier
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fixedArrBytesPack = fixedArrBytesPack[4:]
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if !bytes.Equal(fixedArrBytesPack, exp) {
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t.Errorf("expected %x, got %x\n", exp, fixedArrBytesPack)
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}
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// test string, fixed array uint256[2], dynamic array uint256[]
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strin = "hello world"
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fixedarrin := [2]*big.Int{big.NewInt(1), big.NewInt(2)}
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dynarrin := []*big.Int{big.NewInt(1), big.NewInt(2), big.NewInt(3)}
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mixedArrStrPack, err := abi.Pack("mixedArrStr", strin, fixedarrin, dynarrin)
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if err != nil {
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t.Error(err)
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}
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// generate expected output
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stroffset := make([]byte, 32)
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stroffset[31] = 128
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strlength := make([]byte, 32)
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strlength[31] = byte(len(strin))
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strvalue = common.RightPadBytes([]byte(strin), 32)
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fixedarrinvalue1 := common.LeftPadBytes(fixedarrin[0].Bytes(), 32)
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fixedarrinvalue2 := common.LeftPadBytes(fixedarrin[1].Bytes(), 32)
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dynarroffset := make([]byte, 32)
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dynarroffset[31] = byte(160 + ((len(strin)/32)+1)*32)
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dynarrlength := make([]byte, 32)
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dynarrlength[31] = byte(len(dynarrin))
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dynarrinvalue1 := common.LeftPadBytes(dynarrin[0].Bytes(), 32)
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dynarrinvalue2 := common.LeftPadBytes(dynarrin[1].Bytes(), 32)
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dynarrinvalue3 := common.LeftPadBytes(dynarrin[2].Bytes(), 32)
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exp = append(stroffset, fixedarrinvalue1...)
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exp = append(exp, fixedarrinvalue2...)
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exp = append(exp, dynarroffset...)
|
|
exp = append(exp, append(strlength, strvalue...)...)
|
|
dynarrarg := append(dynarrlength, dynarrinvalue1...)
|
|
dynarrarg = append(dynarrarg, dynarrinvalue2...)
|
|
dynarrarg = append(dynarrarg, dynarrinvalue3...)
|
|
exp = append(exp, dynarrarg...)
|
|
|
|
// ignore first 4 bytes of the output. This is the function identifier
|
|
mixedArrStrPack = mixedArrStrPack[4:]
|
|
if !bytes.Equal(mixedArrStrPack, exp) {
|
|
t.Errorf("expected %x, got %x\n", exp, mixedArrStrPack)
|
|
}
|
|
|
|
// test string, fixed array uint256[2], fixed array uint256[3]
|
|
strin = "hello world"
|
|
fixedarrin1 := [2]*big.Int{big.NewInt(1), big.NewInt(2)}
|
|
fixedarrin2 := [3]*big.Int{big.NewInt(1), big.NewInt(2), big.NewInt(3)}
|
|
doubleFixedArrStrPack, err := abi.Pack("doubleFixedArrStr", strin, fixedarrin1, fixedarrin2)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
// generate expected output
|
|
stroffset = make([]byte, 32)
|
|
stroffset[31] = 192
|
|
strlength = make([]byte, 32)
|
|
strlength[31] = byte(len(strin))
|
|
strvalue = common.RightPadBytes([]byte(strin), 32)
|
|
fixedarrin1value1 := common.LeftPadBytes(fixedarrin1[0].Bytes(), 32)
|
|
fixedarrin1value2 := common.LeftPadBytes(fixedarrin1[1].Bytes(), 32)
|
|
fixedarrin2value1 := common.LeftPadBytes(fixedarrin2[0].Bytes(), 32)
|
|
fixedarrin2value2 := common.LeftPadBytes(fixedarrin2[1].Bytes(), 32)
|
|
fixedarrin2value3 := common.LeftPadBytes(fixedarrin2[2].Bytes(), 32)
|
|
exp = append(stroffset, fixedarrin1value1...)
|
|
exp = append(exp, fixedarrin1value2...)
|
|
exp = append(exp, fixedarrin2value1...)
|
|
exp = append(exp, fixedarrin2value2...)
|
|
exp = append(exp, fixedarrin2value3...)
|
|
exp = append(exp, append(strlength, strvalue...)...)
|
|
|
|
// ignore first 4 bytes of the output. This is the function identifier
|
|
doubleFixedArrStrPack = doubleFixedArrStrPack[4:]
|
|
if !bytes.Equal(doubleFixedArrStrPack, exp) {
|
|
t.Errorf("expected %x, got %x\n", exp, doubleFixedArrStrPack)
|
|
}
|
|
|
|
// test string, fixed array uint256[2], dynamic array uint256[], fixed array uint256[3]
|
|
strin = "hello world"
|
|
fixedarrin1 = [2]*big.Int{big.NewInt(1), big.NewInt(2)}
|
|
dynarrin = []*big.Int{big.NewInt(1), big.NewInt(2)}
|
|
fixedarrin2 = [3]*big.Int{big.NewInt(1), big.NewInt(2), big.NewInt(3)}
|
|
multipleMixedArrStrPack, err := abi.Pack("multipleMixedArrStr", strin, fixedarrin1, dynarrin, fixedarrin2)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
// generate expected output
|
|
stroffset = make([]byte, 32)
|
|
stroffset[31] = 224
|
|
strlength = make([]byte, 32)
|
|
strlength[31] = byte(len(strin))
|
|
strvalue = common.RightPadBytes([]byte(strin), 32)
|
|
fixedarrin1value1 = common.LeftPadBytes(fixedarrin1[0].Bytes(), 32)
|
|
fixedarrin1value2 = common.LeftPadBytes(fixedarrin1[1].Bytes(), 32)
|
|
dynarroffset = U256(big.NewInt(int64(256 + ((len(strin)/32)+1)*32)))
|
|
dynarrlength = make([]byte, 32)
|
|
dynarrlength[31] = byte(len(dynarrin))
|
|
dynarrinvalue1 = common.LeftPadBytes(dynarrin[0].Bytes(), 32)
|
|
dynarrinvalue2 = common.LeftPadBytes(dynarrin[1].Bytes(), 32)
|
|
fixedarrin2value1 = common.LeftPadBytes(fixedarrin2[0].Bytes(), 32)
|
|
fixedarrin2value2 = common.LeftPadBytes(fixedarrin2[1].Bytes(), 32)
|
|
fixedarrin2value3 = common.LeftPadBytes(fixedarrin2[2].Bytes(), 32)
|
|
exp = append(stroffset, fixedarrin1value1...)
|
|
exp = append(exp, fixedarrin1value2...)
|
|
exp = append(exp, dynarroffset...)
|
|
exp = append(exp, fixedarrin2value1...)
|
|
exp = append(exp, fixedarrin2value2...)
|
|
exp = append(exp, fixedarrin2value3...)
|
|
exp = append(exp, append(strlength, strvalue...)...)
|
|
dynarrarg = append(dynarrlength, dynarrinvalue1...)
|
|
dynarrarg = append(dynarrarg, dynarrinvalue2...)
|
|
exp = append(exp, dynarrarg...)
|
|
|
|
// ignore first 4 bytes of the output. This is the function identifier
|
|
multipleMixedArrStrPack = multipleMixedArrStrPack[4:]
|
|
if !bytes.Equal(multipleMixedArrStrPack, exp) {
|
|
t.Errorf("expected %x, got %x\n", exp, multipleMixedArrStrPack)
|
|
}
|
|
}
|
|
|
|
func TestDefaultFunctionParsing(t *testing.T) {
|
|
const definition = `[{ "name" : "balance" }]`
|
|
|
|
abi, err := JSON(strings.NewReader(definition))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if _, ok := abi.Methods["balance"]; !ok {
|
|
t.Error("expected 'balance' to be present")
|
|
}
|
|
}
|
|
|
|
func TestBareEvents(t *testing.T) {
|
|
const definition = `[
|
|
{ "type" : "event", "name" : "balance" },
|
|
{ "type" : "event", "name" : "anon", "anonymous" : true},
|
|
{ "type" : "event", "name" : "args", "inputs" : [{ "indexed":false, "name":"arg0", "type":"uint256" }, { "indexed":true, "name":"arg1", "type":"address" }] }
|
|
]`
|
|
|
|
arg0, _ := NewType("uint256")
|
|
arg1, _ := NewType("address")
|
|
|
|
expectedEvents := map[string]struct {
|
|
Anonymous bool
|
|
Args []Argument
|
|
}{
|
|
"balance": {false, nil},
|
|
"anon": {true, nil},
|
|
"args": {false, []Argument{
|
|
{Name: "arg0", Type: arg0, Indexed: false},
|
|
{Name: "arg1", Type: arg1, Indexed: true},
|
|
}},
|
|
}
|
|
|
|
abi, err := JSON(strings.NewReader(definition))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
if len(abi.Events) != len(expectedEvents) {
|
|
t.Fatalf("invalid number of events after parsing, want %d, got %d", len(expectedEvents), len(abi.Events))
|
|
}
|
|
|
|
for name, exp := range expectedEvents {
|
|
got, ok := abi.Events[name]
|
|
if !ok {
|
|
t.Errorf("could not found event %s", name)
|
|
continue
|
|
}
|
|
if got.Anonymous != exp.Anonymous {
|
|
t.Errorf("invalid anonymous indication for event %s, want %v, got %v", name, exp.Anonymous, got.Anonymous)
|
|
}
|
|
if len(got.Inputs) != len(exp.Args) {
|
|
t.Errorf("invalid number of args, want %d, got %d", len(exp.Args), len(got.Inputs))
|
|
continue
|
|
}
|
|
for i, arg := range exp.Args {
|
|
if arg.Name != got.Inputs[i].Name {
|
|
t.Errorf("events[%s].Input[%d] has an invalid name, want %s, got %s", name, i, arg.Name, got.Inputs[i].Name)
|
|
}
|
|
if arg.Indexed != got.Inputs[i].Indexed {
|
|
t.Errorf("events[%s].Input[%d] has an invalid indexed indication, want %v, got %v", name, i, arg.Indexed, got.Inputs[i].Indexed)
|
|
}
|
|
if arg.Type.T != got.Inputs[i].Type.T {
|
|
t.Errorf("events[%s].Input[%d] has an invalid type, want %x, got %x", name, i, arg.Type.T, got.Inputs[i].Type.T)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestUnpackEvent is based on this contract:
|
|
// contract T {
|
|
// event received(address sender, uint amount, bytes memo);
|
|
// function receive(bytes memo) external payable {
|
|
// received(msg.sender, msg.value, memo);
|
|
// }
|
|
// }
|
|
// When receive("X") is called with sender 0x00... and value 1, it produces this tx receipt:
|
|
// receipt{status=1 cgas=23949 bloom=00000000004000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000040200000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 logs=[log: b6818c8064f645cd82d99b59a1a267d6d61117ef [75fd880d39c1daf53b6547ab6cb59451fc6452d27caa90e5b6649dd8293b9eed] 000000000000000000000000376c47978271565f56deb45495afa69e59c16ab200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000158 9ae378b6d4409eada347a5dc0c180f186cb62dc68fcc0f043425eb917335aa28 0 95d429d309bb9d753954195fe2d69bd140b4ae731b9b5b605c34323de162cf00 0]}
|
|
func TestUnpackEvent(t *testing.T) {
|
|
const abiJSON = `[{"constant":false,"inputs":[{"name":"memo","type":"bytes"}],"name":"receive","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"anonymous":false,"inputs":[{"indexed":false,"name":"sender","type":"address"},{"indexed":false,"name":"amount","type":"uint256"},{"indexed":false,"name":"memo","type":"bytes"}],"name":"received","type":"event"}]`
|
|
abi, err := JSON(strings.NewReader(abiJSON))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
const hexdata = `000000000000000000000000376c47978271565f56deb45495afa69e59c16ab200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000158`
|
|
data, err := hex.DecodeString(hexdata)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if len(data)%32 == 0 {
|
|
t.Errorf("len(data) is %d, want a non-multiple of 32", len(data))
|
|
}
|
|
|
|
type ReceivedEvent struct {
|
|
Address common.Address
|
|
Amount *big.Int
|
|
Memo []byte
|
|
}
|
|
var ev ReceivedEvent
|
|
|
|
err = abi.Unpack(&ev, "received", data)
|
|
if err != nil {
|
|
t.Error(err)
|
|
} else {
|
|
t.Logf("len(data): %d; received event: %+v", len(data), ev)
|
|
}
|
|
}
|