cb3c7e4319
There was a dormant error with structured inputs that failed unpacking. This commit fixes the error by switching casting to the better abi.ConvertType function. It also adds a test for calling a view function that returns a struct
1149 lines
51 KiB
Go
1149 lines
51 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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"errors"
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"fmt"
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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/common/math"
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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" : ""},
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{ "type" : "function", "name" : "balance", "stateMutability" : "view" },
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{ "type" : "function", "name" : "send", "inputs" : [ { "name" : "amount", "type" : "uint256" } ] },
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{ "type" : "function", "name" : "test", "inputs" : [ { "name" : "number", "type" : "uint32" } ] },
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{ "type" : "function", "name" : "string", "inputs" : [ { "name" : "inputs", "type" : "string" } ] },
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{ "type" : "function", "name" : "bool", "inputs" : [ { "name" : "inputs", "type" : "bool" } ] },
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{ "type" : "function", "name" : "address", "inputs" : [ { "name" : "inputs", "type" : "address" } ] },
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{ "type" : "function", "name" : "uint64[2]", "inputs" : [ { "name" : "inputs", "type" : "uint64[2]" } ] },
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{ "type" : "function", "name" : "uint64[]", "inputs" : [ { "name" : "inputs", "type" : "uint64[]" } ] },
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{ "type" : "function", "name" : "int8", "inputs" : [ { "name" : "inputs", "type" : "int8" } ] },
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{ "type" : "function", "name" : "bytes32", "inputs" : [ { "name" : "inputs", "type" : "bytes32" } ] },
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{ "type" : "function", "name" : "foo", "inputs" : [ { "name" : "inputs", "type" : "uint32" } ] },
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{ "type" : "function", "name" : "bar", "inputs" : [ { "name" : "inputs", "type" : "uint32" }, { "name" : "string", "type" : "uint16" } ] },
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{ "type" : "function", "name" : "slice", "inputs" : [ { "name" : "inputs", "type" : "uint32[2]" } ] },
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{ "type" : "function", "name" : "slice256", "inputs" : [ { "name" : "inputs", "type" : "uint256[2]" } ] },
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{ "type" : "function", "name" : "sliceAddress", "inputs" : [ { "name" : "inputs", "type" : "address[]" } ] },
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{ "type" : "function", "name" : "sliceMultiAddress", "inputs" : [ { "name" : "a", "type" : "address[]" }, { "name" : "b", "type" : "address[]" } ] },
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{ "type" : "function", "name" : "nestedArray", "inputs" : [ { "name" : "a", "type" : "uint256[2][2]" }, { "name" : "b", "type" : "address[]" } ] },
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{ "type" : "function", "name" : "nestedArray2", "inputs" : [ { "name" : "a", "type" : "uint8[][2]" } ] },
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{ "type" : "function", "name" : "nestedSlice", "inputs" : [ { "name" : "a", "type" : "uint8[][]" } ] },
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{ "type" : "function", "name" : "receive", "inputs" : [ { "name" : "memo", "type" : "bytes" }], "outputs" : [], "payable" : true, "stateMutability" : "payable" },
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{ "type" : "function", "name" : "fixedArrStr", "stateMutability" : "view", "inputs" : [ { "name" : "str", "type" : "string" }, { "name" : "fixedArr", "type" : "uint256[2]" } ] },
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{ "type" : "function", "name" : "fixedArrBytes", "stateMutability" : "view", "inputs" : [ { "name" : "bytes", "type" : "bytes" }, { "name" : "fixedArr", "type" : "uint256[2]" } ] },
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{ "type" : "function", "name" : "mixedArrStr", "stateMutability" : "view", "inputs" : [ { "name" : "str", "type" : "string" }, { "name" : "fixedArr", "type" : "uint256[2]" }, { "name" : "dynArr", "type" : "uint256[]" } ] },
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{ "type" : "function", "name" : "doubleFixedArrStr", "stateMutability" : "view", "inputs" : [ { "name" : "str", "type" : "string" }, { "name" : "fixedArr1", "type" : "uint256[2]" }, { "name" : "fixedArr2", "type" : "uint256[3]" } ] },
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{ "type" : "function", "name" : "multipleMixedArrStr", "stateMutability" : "view", "inputs" : [ { "name" : "str", "type" : "string" }, { "name" : "fixedArr1", "type" : "uint256[2]" }, { "name" : "dynArr", "type" : "uint256[]" }, { "name" : "fixedArr2", "type" : "uint256[3]" } ] },
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{ "type" : "function", "name" : "overloadedNames", "stateMutability" : "view", "inputs": [ { "components": [ { "internalType": "uint256", "name": "_f", "type": "uint256" }, { "internalType": "uint256", "name": "__f", "type": "uint256"}, { "internalType": "uint256", "name": "f", "type": "uint256"}],"internalType": "struct Overloader.F", "name": "f","type": "tuple"}]}
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]`
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var (
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Uint256, _ = NewType("uint256", "", nil)
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Uint32, _ = NewType("uint32", "", nil)
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Uint16, _ = NewType("uint16", "", nil)
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String, _ = NewType("string", "", nil)
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Bool, _ = NewType("bool", "", nil)
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Bytes, _ = NewType("bytes", "", nil)
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Bytes32, _ = NewType("bytes32", "", nil)
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Address, _ = NewType("address", "", nil)
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Uint64Arr, _ = NewType("uint64[]", "", nil)
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AddressArr, _ = NewType("address[]", "", nil)
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Int8, _ = NewType("int8", "", nil)
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// Special types for testing
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Uint32Arr2, _ = NewType("uint32[2]", "", nil)
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Uint64Arr2, _ = NewType("uint64[2]", "", nil)
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Uint256Arr, _ = NewType("uint256[]", "", nil)
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Uint256Arr2, _ = NewType("uint256[2]", "", nil)
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Uint256Arr3, _ = NewType("uint256[3]", "", nil)
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Uint256ArrNested, _ = NewType("uint256[2][2]", "", nil)
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Uint8ArrNested, _ = NewType("uint8[][2]", "", nil)
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Uint8SliceNested, _ = NewType("uint8[][]", "", nil)
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TupleF, _ = NewType("tuple", "struct Overloader.F", []ArgumentMarshaling{
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{Name: "_f", Type: "uint256"},
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{Name: "__f", Type: "uint256"},
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{Name: "f", Type: "uint256"}})
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)
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var methods = map[string]Method{
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"": NewMethod("", "", Function, "", false, false, nil, nil),
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"balance": NewMethod("balance", "balance", Function, "view", false, false, nil, nil),
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"send": NewMethod("send", "send", Function, "", false, false, []Argument{{"amount", Uint256, false}}, nil),
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"test": NewMethod("test", "test", Function, "", false, false, []Argument{{"number", Uint32, false}}, nil),
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"string": NewMethod("string", "string", Function, "", false, false, []Argument{{"inputs", String, false}}, nil),
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"bool": NewMethod("bool", "bool", Function, "", false, false, []Argument{{"inputs", Bool, false}}, nil),
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"address": NewMethod("address", "address", Function, "", false, false, []Argument{{"inputs", Address, false}}, nil),
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"uint64[]": NewMethod("uint64[]", "uint64[]", Function, "", false, false, []Argument{{"inputs", Uint64Arr, false}}, nil),
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"uint64[2]": NewMethod("uint64[2]", "uint64[2]", Function, "", false, false, []Argument{{"inputs", Uint64Arr2, false}}, nil),
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"int8": NewMethod("int8", "int8", Function, "", false, false, []Argument{{"inputs", Int8, false}}, nil),
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"bytes32": NewMethod("bytes32", "bytes32", Function, "", false, false, []Argument{{"inputs", Bytes32, false}}, nil),
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"foo": NewMethod("foo", "foo", Function, "", false, false, []Argument{{"inputs", Uint32, false}}, nil),
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"bar": NewMethod("bar", "bar", Function, "", false, false, []Argument{{"inputs", Uint32, false}, {"string", Uint16, false}}, nil),
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"slice": NewMethod("slice", "slice", Function, "", false, false, []Argument{{"inputs", Uint32Arr2, false}}, nil),
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"slice256": NewMethod("slice256", "slice256", Function, "", false, false, []Argument{{"inputs", Uint256Arr2, false}}, nil),
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"sliceAddress": NewMethod("sliceAddress", "sliceAddress", Function, "", false, false, []Argument{{"inputs", AddressArr, false}}, nil),
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"sliceMultiAddress": NewMethod("sliceMultiAddress", "sliceMultiAddress", Function, "", false, false, []Argument{{"a", AddressArr, false}, {"b", AddressArr, false}}, nil),
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"nestedArray": NewMethod("nestedArray", "nestedArray", Function, "", false, false, []Argument{{"a", Uint256ArrNested, false}, {"b", AddressArr, false}}, nil),
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"nestedArray2": NewMethod("nestedArray2", "nestedArray2", Function, "", false, false, []Argument{{"a", Uint8ArrNested, false}}, nil),
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"nestedSlice": NewMethod("nestedSlice", "nestedSlice", Function, "", false, false, []Argument{{"a", Uint8SliceNested, false}}, nil),
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"receive": NewMethod("receive", "receive", Function, "payable", false, true, []Argument{{"memo", Bytes, false}}, []Argument{}),
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"fixedArrStr": NewMethod("fixedArrStr", "fixedArrStr", Function, "view", false, false, []Argument{{"str", String, false}, {"fixedArr", Uint256Arr2, false}}, nil),
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"fixedArrBytes": NewMethod("fixedArrBytes", "fixedArrBytes", Function, "view", false, false, []Argument{{"bytes", Bytes, false}, {"fixedArr", Uint256Arr2, false}}, nil),
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"mixedArrStr": NewMethod("mixedArrStr", "mixedArrStr", Function, "view", false, false, []Argument{{"str", String, false}, {"fixedArr", Uint256Arr2, false}, {"dynArr", Uint256Arr, false}}, nil),
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"doubleFixedArrStr": NewMethod("doubleFixedArrStr", "doubleFixedArrStr", Function, "view", false, false, []Argument{{"str", String, false}, {"fixedArr1", Uint256Arr2, false}, {"fixedArr2", Uint256Arr3, false}}, nil),
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"multipleMixedArrStr": NewMethod("multipleMixedArrStr", "multipleMixedArrStr", Function, "view", false, false, []Argument{{"str", String, false}, {"fixedArr1", Uint256Arr2, false}, {"dynArr", Uint256Arr, false}, {"fixedArr2", Uint256Arr3, false}}, nil),
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"overloadedNames": NewMethod("overloadedNames", "overloadedNames", Function, "view", false, false, []Argument{{"f", TupleF, false}}, nil),
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}
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func TestReader(t *testing.T) {
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abi := ABI{
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Methods: methods,
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}
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exp, 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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for name, expM := range exp.Methods {
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gotM, exist := abi.Methods[name]
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if !exist {
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t.Errorf("Missing expected method %v", name)
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}
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if !reflect.DeepEqual(gotM, expM) {
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t.Errorf("\nGot abi method: \n%v\ndoes not match expected method\n%v", gotM, expM)
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}
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}
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for name, gotM := range abi.Methods {
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expM, exist := exp.Methods[name]
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if !exist {
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t.Errorf("Found extra method %v", name)
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}
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if !reflect.DeepEqual(gotM, expM) {
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t.Errorf("\nGot abi method: \n%v\ndoes not match expected method\n%v", gotM, expM)
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}
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}
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}
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func TestInvalidABI(t *testing.T) {
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json := `[{ "type" : "function", "name" : "", "constant" : fals }]`
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_, err := JSON(strings.NewReader(json))
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if err == nil {
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t.Fatal("invalid json should produce error")
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}
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json2 := `[{ "type" : "function", "name" : "send", "constant" : false, "inputs" : [ { "name" : "amount", "typ" : "uint256" } ] }]`
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_, err = JSON(strings.NewReader(json2))
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if err == nil {
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t.Fatal("invalid json should produce error")
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}
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}
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// TestConstructor tests a constructor function.
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// The test is based on the following contract:
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// contract TestConstructor {
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// constructor(uint256 a, uint256 b) public{}
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// }
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func TestConstructor(t *testing.T) {
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json := `[{ "inputs": [{"internalType": "uint256","name": "a","type": "uint256" },{ "internalType": "uint256","name": "b","type": "uint256"}],"stateMutability": "nonpayable","type": "constructor"}]`
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method := NewMethod("", "", Constructor, "nonpayable", false, false, []Argument{{"a", Uint256, false}, {"b", Uint256, false}}, nil)
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// Test from JSON
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abi, err := JSON(strings.NewReader(json))
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if err != nil {
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t.Fatal(err)
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}
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if !reflect.DeepEqual(abi.Constructor, method) {
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t.Error("Missing expected constructor")
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}
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// Test pack/unpack
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packed, err := abi.Pack("", 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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unpacked, err := abi.Constructor.Inputs.Unpack(packed)
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if err != nil {
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t.Error(err)
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}
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if !reflect.DeepEqual(unpacked[0], big.NewInt(1)) {
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t.Error("Unable to pack/unpack from constructor")
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}
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if !reflect.DeepEqual(unpacked[1], big.NewInt(2)) {
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t.Error("Unable to pack/unpack from constructor")
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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(jsondata))
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if err != nil {
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t.Fatal(err)
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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 TestMethodSignature(t *testing.T) {
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m := NewMethod("foo", "foo", Function, "", false, 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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m = NewMethod("foo", "foo", Function, "", false, false, []Argument{{"bar", Uint256, 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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// Method with tuple arguments
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s, _ := NewType("tuple", "", []ArgumentMarshaling{
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{Name: "a", Type: "int256"},
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{Name: "b", Type: "int256[]"},
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{Name: "c", Type: "tuple[]", Components: []ArgumentMarshaling{
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{Name: "x", Type: "int256"},
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{Name: "y", Type: "int256"},
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}},
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{Name: "d", Type: "tuple[2]", Components: []ArgumentMarshaling{
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{Name: "x", Type: "int256"},
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{Name: "y", Type: "int256"},
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}},
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})
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m = NewMethod("foo", "foo", Function, "", false, false, []Argument{{"s", s, false}, {"bar", String, false}}, nil)
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exp = "foo((int256,int256[],(int256,int256)[],(int256,int256)[2]),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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}
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func TestOverloadedMethodSignature(t *testing.T) {
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json := `[{"constant":true,"inputs":[{"name":"i","type":"uint256"},{"name":"j","type":"uint256"}],"name":"foo","outputs":[],"payable":false,"stateMutability":"pure","type":"function"},{"constant":true,"inputs":[{"name":"i","type":"uint256"}],"name":"foo","outputs":[],"payable":false,"stateMutability":"pure","type":"function"},{"anonymous":false,"inputs":[{"indexed":false,"name":"i","type":"uint256"}],"name":"bar","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"name":"i","type":"uint256"},{"indexed":false,"name":"j","type":"uint256"}],"name":"bar","type":"event"}]`
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abi, err := JSON(strings.NewReader(json))
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if err != nil {
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t.Fatal(err)
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}
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check := func(name string, expect string, method bool) {
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if method {
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if abi.Methods[name].Sig != expect {
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t.Fatalf("The signature of overloaded method mismatch, want %s, have %s", expect, abi.Methods[name].Sig)
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}
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} else {
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if abi.Events[name].Sig != expect {
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t.Fatalf("The signature of overloaded event mismatch, want %s, have %s", expect, abi.Events[name].Sig)
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}
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}
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}
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check("foo", "foo(uint256,uint256)", true)
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check("foo0", "foo(uint256)", true)
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check("bar", "bar(uint256)", false)
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check("bar0", "bar(uint256,uint256)", false)
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}
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func TestMultiPack(t *testing.T) {
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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 := 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.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 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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panic(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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panic(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))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
// test one string
|
|
strin := "hello world"
|
|
strpack, err := abi.Pack("strOne", strin)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
offset := make([]byte, 32)
|
|
offset[31] = 32
|
|
length := make([]byte, 32)
|
|
length[31] = byte(len(strin))
|
|
value := common.RightPadBytes([]byte(strin), 32)
|
|
exp := append(offset, append(length, value...)...)
|
|
|
|
// ignore first 4 bytes of the output. This is the function identifier
|
|
strpack = strpack[4:]
|
|
if !bytes.Equal(strpack, exp) {
|
|
t.Errorf("expected %x, got %x\n", exp, strpack)
|
|
}
|
|
|
|
// test one bytes
|
|
btspack, err := abi.Pack("bytesOne", []byte(strin))
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
// ignore first 4 bytes of the output. This is the function identifier
|
|
btspack = btspack[4:]
|
|
if !bytes.Equal(btspack, exp) {
|
|
t.Errorf("expected %x, got %x\n", exp, btspack)
|
|
}
|
|
|
|
// test two strings
|
|
str1 := "hello"
|
|
str2 := "world"
|
|
str2pack, err := abi.Pack("strTwo", str1, str2)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
offset1 := make([]byte, 32)
|
|
offset1[31] = 64
|
|
length1 := make([]byte, 32)
|
|
length1[31] = byte(len(str1))
|
|
value1 := common.RightPadBytes([]byte(str1), 32)
|
|
|
|
offset2 := make([]byte, 32)
|
|
offset2[31] = 128
|
|
length2 := make([]byte, 32)
|
|
length2[31] = byte(len(str2))
|
|
value2 := common.RightPadBytes([]byte(str2), 32)
|
|
|
|
exp2 := append(offset1, offset2...)
|
|
exp2 = append(exp2, append(length1, value1...)...)
|
|
exp2 = append(exp2, append(length2, value2...)...)
|
|
|
|
// ignore first 4 bytes of the output. This is the function identifier
|
|
str2pack = str2pack[4:]
|
|
if !bytes.Equal(str2pack, exp2) {
|
|
t.Errorf("expected %x, got %x\n", exp, str2pack)
|
|
}
|
|
|
|
// test two strings, first > 32, second < 32
|
|
str1 = strings.Repeat("a", 33)
|
|
str2pack, err = abi.Pack("strTwo", str1, str2)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
offset1 = make([]byte, 32)
|
|
offset1[31] = 64
|
|
length1 = make([]byte, 32)
|
|
length1[31] = byte(len(str1))
|
|
value1 = common.RightPadBytes([]byte(str1), 64)
|
|
offset2[31] = 160
|
|
|
|
exp2 = append(offset1, offset2...)
|
|
exp2 = append(exp2, append(length1, value1...)...)
|
|
exp2 = append(exp2, append(length2, value2...)...)
|
|
|
|
// ignore first 4 bytes of the output. This is the function identifier
|
|
str2pack = str2pack[4:]
|
|
if !bytes.Equal(str2pack, exp2) {
|
|
t.Errorf("expected %x, got %x\n", exp, str2pack)
|
|
}
|
|
|
|
// test two strings, first > 32, second >32
|
|
str1 = strings.Repeat("a", 33)
|
|
str2 = strings.Repeat("a", 33)
|
|
str2pack, err = abi.Pack("strTwo", str1, str2)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
offset1 = make([]byte, 32)
|
|
offset1[31] = 64
|
|
length1 = make([]byte, 32)
|
|
length1[31] = byte(len(str1))
|
|
value1 = common.RightPadBytes([]byte(str1), 64)
|
|
|
|
offset2 = make([]byte, 32)
|
|
offset2[31] = 160
|
|
length2 = make([]byte, 32)
|
|
length2[31] = byte(len(str2))
|
|
value2 = common.RightPadBytes([]byte(str2), 64)
|
|
|
|
exp2 = append(offset1, offset2...)
|
|
exp2 = append(exp2, append(length1, value1...)...)
|
|
exp2 = append(exp2, append(length2, value2...)...)
|
|
|
|
// ignore first 4 bytes of the output. This is the function identifier
|
|
str2pack = str2pack[4:]
|
|
if !bytes.Equal(str2pack, exp2) {
|
|
t.Errorf("expected %x, got %x\n", exp, str2pack)
|
|
}
|
|
}
|
|
|
|
func TestInputFixedArrayAndVariableInputLength(t *testing.T) {
|
|
abi, err := JSON(strings.NewReader(jsondata))
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
// test string, fixed array uint256[2]
|
|
strin := "hello world"
|
|
arrin := [2]*big.Int{big.NewInt(1), big.NewInt(2)}
|
|
fixedArrStrPack, err := abi.Pack("fixedArrStr", strin, arrin)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
// generate expected output
|
|
offset := make([]byte, 32)
|
|
offset[31] = 96
|
|
length := make([]byte, 32)
|
|
length[31] = byte(len(strin))
|
|
strvalue := common.RightPadBytes([]byte(strin), 32)
|
|
arrinvalue1 := common.LeftPadBytes(arrin[0].Bytes(), 32)
|
|
arrinvalue2 := common.LeftPadBytes(arrin[1].Bytes(), 32)
|
|
exp := append(offset, arrinvalue1...)
|
|
exp = append(exp, arrinvalue2...)
|
|
exp = append(exp, append(length, strvalue...)...)
|
|
|
|
// ignore first 4 bytes of the output. This is the function identifier
|
|
fixedArrStrPack = fixedArrStrPack[4:]
|
|
if !bytes.Equal(fixedArrStrPack, exp) {
|
|
t.Errorf("expected %x, got %x\n", exp, fixedArrStrPack)
|
|
}
|
|
|
|
// test byte array, fixed array uint256[2]
|
|
bytesin := []byte(strin)
|
|
arrin = [2]*big.Int{big.NewInt(1), big.NewInt(2)}
|
|
fixedArrBytesPack, err := abi.Pack("fixedArrBytes", bytesin, arrin)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
// generate expected output
|
|
offset = make([]byte, 32)
|
|
offset[31] = 96
|
|
length = make([]byte, 32)
|
|
length[31] = byte(len(strin))
|
|
strvalue = common.RightPadBytes([]byte(strin), 32)
|
|
arrinvalue1 = common.LeftPadBytes(arrin[0].Bytes(), 32)
|
|
arrinvalue2 = common.LeftPadBytes(arrin[1].Bytes(), 32)
|
|
exp = append(offset, arrinvalue1...)
|
|
exp = append(exp, arrinvalue2...)
|
|
exp = append(exp, append(length, strvalue...)...)
|
|
|
|
// ignore first 4 bytes of the output. This is the function identifier
|
|
fixedArrBytesPack = fixedArrBytesPack[4:]
|
|
if !bytes.Equal(fixedArrBytesPack, exp) {
|
|
t.Errorf("expected %x, got %x\n", exp, fixedArrBytesPack)
|
|
}
|
|
|
|
// test string, fixed array uint256[2], dynamic array uint256[]
|
|
strin = "hello world"
|
|
fixedarrin := [2]*big.Int{big.NewInt(1), big.NewInt(2)}
|
|
dynarrin := []*big.Int{big.NewInt(1), big.NewInt(2), big.NewInt(3)}
|
|
mixedArrStrPack, err := abi.Pack("mixedArrStr", strin, fixedarrin, dynarrin)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
// generate expected output
|
|
stroffset := make([]byte, 32)
|
|
stroffset[31] = 128
|
|
strlength := make([]byte, 32)
|
|
strlength[31] = byte(len(strin))
|
|
strvalue = common.RightPadBytes([]byte(strin), 32)
|
|
fixedarrinvalue1 := common.LeftPadBytes(fixedarrin[0].Bytes(), 32)
|
|
fixedarrinvalue2 := common.LeftPadBytes(fixedarrin[1].Bytes(), 32)
|
|
dynarroffset := make([]byte, 32)
|
|
dynarroffset[31] = byte(160 + ((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)
|
|
dynarrinvalue3 := common.LeftPadBytes(dynarrin[2].Bytes(), 32)
|
|
exp = append(stroffset, fixedarrinvalue1...)
|
|
exp = append(exp, fixedarrinvalue2...)
|
|
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 = math.U256Bytes(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", "type" : "function" }]`
|
|
|
|
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" }] },
|
|
{ "type" : "event", "name" : "tuple", "inputs" : [{ "indexed":false, "name":"t", "type":"tuple", "components":[{"name":"a", "type":"uint256"}] }, { "indexed":true, "name":"arg1", "type":"address" }] }
|
|
]`
|
|
|
|
tuple, _ := NewType("tuple", "", []ArgumentMarshaling{{Name: "a", Type: "uint256"}})
|
|
|
|
expectedEvents := map[string]struct {
|
|
Anonymous bool
|
|
Args []Argument
|
|
}{
|
|
"balance": {false, nil},
|
|
"anon": {true, nil},
|
|
"args": {false, []Argument{
|
|
{Name: "arg0", Type: Uint256, Indexed: false},
|
|
{Name: "arg1", Type: Address, Indexed: true},
|
|
}},
|
|
"tuple": {false, []Argument{
|
|
{Name: "t", Type: tuple, Indexed: false},
|
|
{Name: "arg1", Type: Address, 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);
|
|
// event receivedAddr(address sender);
|
|
// function receive(bytes memo) external payable {
|
|
// received(msg.sender, msg.value, memo);
|
|
// receivedAddr(msg.sender);
|
|
// }
|
|
// }
|
|
// 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"},{"anonymous":false,"inputs":[{"indexed":false,"name":"sender","type":"address"}],"name":"receivedAddr","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 {
|
|
Sender common.Address
|
|
Amount *big.Int
|
|
Memo []byte
|
|
}
|
|
var ev ReceivedEvent
|
|
|
|
err = abi.UnpackIntoInterface(&ev, "received", data)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
type ReceivedAddrEvent struct {
|
|
Sender common.Address
|
|
}
|
|
var receivedAddrEv ReceivedAddrEvent
|
|
err = abi.UnpackIntoInterface(&receivedAddrEv, "receivedAddr", data)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
}
|
|
|
|
func TestUnpackEventIntoMap(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"},{"anonymous":false,"inputs":[{"indexed":false,"name":"sender","type":"address"}],"name":"receivedAddr","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))
|
|
}
|
|
|
|
receivedMap := map[string]interface{}{}
|
|
expectedReceivedMap := map[string]interface{}{
|
|
"sender": common.HexToAddress("0x376c47978271565f56DEB45495afa69E59c16Ab2"),
|
|
"amount": big.NewInt(1),
|
|
"memo": []byte{88},
|
|
}
|
|
if err := abi.UnpackIntoMap(receivedMap, "received", data); err != nil {
|
|
t.Error(err)
|
|
}
|
|
if len(receivedMap) != 3 {
|
|
t.Error("unpacked `received` map expected to have length 3")
|
|
}
|
|
if receivedMap["sender"] != expectedReceivedMap["sender"] {
|
|
t.Error("unpacked `received` map does not match expected map")
|
|
}
|
|
if receivedMap["amount"].(*big.Int).Cmp(expectedReceivedMap["amount"].(*big.Int)) != 0 {
|
|
t.Error("unpacked `received` map does not match expected map")
|
|
}
|
|
if !bytes.Equal(receivedMap["memo"].([]byte), expectedReceivedMap["memo"].([]byte)) {
|
|
t.Error("unpacked `received` map does not match expected map")
|
|
}
|
|
|
|
receivedAddrMap := map[string]interface{}{}
|
|
if err = abi.UnpackIntoMap(receivedAddrMap, "receivedAddr", data); err != nil {
|
|
t.Error(err)
|
|
}
|
|
if len(receivedAddrMap) != 1 {
|
|
t.Error("unpacked `receivedAddr` map expected to have length 1")
|
|
}
|
|
if receivedAddrMap["sender"] != expectedReceivedMap["sender"] {
|
|
t.Error("unpacked `receivedAddr` map does not match expected map")
|
|
}
|
|
}
|
|
|
|
func TestUnpackMethodIntoMap(t *testing.T) {
|
|
const abiJSON = `[{"constant":false,"inputs":[{"name":"memo","type":"bytes"}],"name":"receive","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[],"name":"send","outputs":[{"name":"amount","type":"uint256"}],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"name":"addr","type":"address"}],"name":"get","outputs":[{"name":"hash","type":"bytes"}],"payable":true,"stateMutability":"payable","type":"function"}]`
|
|
abi, err := JSON(strings.NewReader(abiJSON))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
const hexdata = `00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000015800000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000158000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000001580000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000015800000000000000000000000000000000000000000000000000000000000000600000000000000000000000000000000000000000000000000000000000000158`
|
|
data, err := hex.DecodeString(hexdata)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if len(data)%32 != 0 {
|
|
t.Errorf("len(data) is %d, want a multiple of 32", len(data))
|
|
}
|
|
|
|
// Tests a method with no outputs
|
|
receiveMap := map[string]interface{}{}
|
|
if err = abi.UnpackIntoMap(receiveMap, "receive", data); err != nil {
|
|
t.Error(err)
|
|
}
|
|
if len(receiveMap) > 0 {
|
|
t.Error("unpacked `receive` map expected to have length 0")
|
|
}
|
|
|
|
// Tests a method with only outputs
|
|
sendMap := map[string]interface{}{}
|
|
if err = abi.UnpackIntoMap(sendMap, "send", data); err != nil {
|
|
t.Error(err)
|
|
}
|
|
if len(sendMap) != 1 {
|
|
t.Error("unpacked `send` map expected to have length 1")
|
|
}
|
|
if sendMap["amount"].(*big.Int).Cmp(big.NewInt(1)) != 0 {
|
|
t.Error("unpacked `send` map expected `amount` value of 1")
|
|
}
|
|
|
|
// Tests a method with outputs and inputs
|
|
getMap := map[string]interface{}{}
|
|
if err = abi.UnpackIntoMap(getMap, "get", data); err != nil {
|
|
t.Error(err)
|
|
}
|
|
if len(getMap) != 1 {
|
|
t.Error("unpacked `get` map expected to have length 1")
|
|
}
|
|
expectedBytes := []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 96, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 88, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 96, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 88, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 96, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 88, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 96, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 88, 0}
|
|
if !bytes.Equal(getMap["hash"].([]byte), expectedBytes) {
|
|
t.Errorf("unpacked `get` map expected `hash` value of %v", expectedBytes)
|
|
}
|
|
}
|
|
|
|
func TestUnpackIntoMapNamingConflict(t *testing.T) {
|
|
// Two methods have the same name
|
|
var abiJSON = `[{"constant":false,"inputs":[{"name":"memo","type":"bytes"}],"name":"get","outputs":[],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[],"name":"send","outputs":[{"name":"amount","type":"uint256"}],"payable":true,"stateMutability":"payable","type":"function"},{"constant":false,"inputs":[{"name":"addr","type":"address"}],"name":"get","outputs":[{"name":"hash","type":"bytes"}],"payable":true,"stateMutability":"payable","type":"function"}]`
|
|
abi, err := JSON(strings.NewReader(abiJSON))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
var hexdata = `00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000158`
|
|
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))
|
|
}
|
|
getMap := map[string]interface{}{}
|
|
if err = abi.UnpackIntoMap(getMap, "get", data); err == nil {
|
|
t.Error("naming conflict between two methods; error expected")
|
|
}
|
|
|
|
// Two events have the same name
|
|
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"},{"anonymous":false,"inputs":[{"indexed":false,"name":"sender","type":"address"}],"name":"received","type":"event"}]`
|
|
abi, err = JSON(strings.NewReader(abiJSON))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
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))
|
|
}
|
|
receivedMap := map[string]interface{}{}
|
|
if err = abi.UnpackIntoMap(receivedMap, "received", data); err != nil {
|
|
t.Error("naming conflict between two events; no error expected")
|
|
}
|
|
|
|
// Method and event have the same name
|
|
abiJSON = `[{"constant":false,"inputs":[{"name":"memo","type":"bytes"}],"name":"received","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"},{"anonymous":false,"inputs":[{"indexed":false,"name":"sender","type":"address"}],"name":"receivedAddr","type":"event"}]`
|
|
abi, err = JSON(strings.NewReader(abiJSON))
|
|
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))
|
|
}
|
|
if err = abi.UnpackIntoMap(receivedMap, "received", data); err == nil {
|
|
t.Error("naming conflict between an event and a method; error expected")
|
|
}
|
|
|
|
// Conflict is case sensitive
|
|
abiJSON = `[{"constant":false,"inputs":[{"name":"memo","type":"bytes"}],"name":"received","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"},{"anonymous":false,"inputs":[{"indexed":false,"name":"sender","type":"address"}],"name":"receivedAddr","type":"event"}]`
|
|
abi, err = JSON(strings.NewReader(abiJSON))
|
|
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))
|
|
}
|
|
expectedReceivedMap := map[string]interface{}{
|
|
"sender": common.HexToAddress("0x376c47978271565f56DEB45495afa69E59c16Ab2"),
|
|
"amount": big.NewInt(1),
|
|
"memo": []byte{88},
|
|
}
|
|
if err = abi.UnpackIntoMap(receivedMap, "Received", data); err != nil {
|
|
t.Error(err)
|
|
}
|
|
if len(receivedMap) != 3 {
|
|
t.Error("unpacked `received` map expected to have length 3")
|
|
}
|
|
if receivedMap["sender"] != expectedReceivedMap["sender"] {
|
|
t.Error("unpacked `received` map does not match expected map")
|
|
}
|
|
if receivedMap["amount"].(*big.Int).Cmp(expectedReceivedMap["amount"].(*big.Int)) != 0 {
|
|
t.Error("unpacked `received` map does not match expected map")
|
|
}
|
|
if !bytes.Equal(receivedMap["memo"].([]byte), expectedReceivedMap["memo"].([]byte)) {
|
|
t.Error("unpacked `received` map does not match expected map")
|
|
}
|
|
}
|
|
|
|
func TestABI_MethodById(t *testing.T) {
|
|
abi, err := JSON(strings.NewReader(jsondata))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
for name, m := range abi.Methods {
|
|
a := fmt.Sprintf("%v", m)
|
|
m2, err := abi.MethodById(m.ID)
|
|
if err != nil {
|
|
t.Fatalf("Failed to look up ABI method: %v", err)
|
|
}
|
|
b := fmt.Sprintf("%v", m2)
|
|
if a != b {
|
|
t.Errorf("Method %v (id %x) not 'findable' by id in ABI", name, m.ID)
|
|
}
|
|
}
|
|
// test unsuccessful lookups
|
|
if _, err = abi.MethodById(crypto.Keccak256()); err == nil {
|
|
t.Error("Expected error: no method with this id")
|
|
}
|
|
// Also test empty
|
|
if _, err := abi.MethodById([]byte{0x00}); err == nil {
|
|
t.Errorf("Expected error, too short to decode data")
|
|
}
|
|
if _, err := abi.MethodById([]byte{}); err == nil {
|
|
t.Errorf("Expected error, too short to decode data")
|
|
}
|
|
if _, err := abi.MethodById(nil); err == nil {
|
|
t.Errorf("Expected error, nil is short to decode data")
|
|
}
|
|
}
|
|
|
|
func TestABI_EventById(t *testing.T) {
|
|
tests := []struct {
|
|
name string
|
|
json string
|
|
event string
|
|
}{
|
|
{
|
|
name: "",
|
|
json: `[
|
|
{"type":"event","name":"received","anonymous":false,"inputs":[
|
|
{"indexed":false,"name":"sender","type":"address"},
|
|
{"indexed":false,"name":"amount","type":"uint256"},
|
|
{"indexed":false,"name":"memo","type":"bytes"}
|
|
]
|
|
}]`,
|
|
event: "received(address,uint256,bytes)",
|
|
}, {
|
|
name: "",
|
|
json: `[
|
|
{ "constant": true, "inputs": [], "name": "name", "outputs": [ { "name": "", "type": "string" } ], "payable": false, "stateMutability": "view", "type": "function" },
|
|
{ "constant": false, "inputs": [ { "name": "_spender", "type": "address" }, { "name": "_value", "type": "uint256" } ], "name": "approve", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" },
|
|
{ "constant": true, "inputs": [], "name": "totalSupply", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" },
|
|
{ "constant": false, "inputs": [ { "name": "_from", "type": "address" }, { "name": "_to", "type": "address" }, { "name": "_value", "type": "uint256" } ], "name": "transferFrom", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" },
|
|
{ "constant": true, "inputs": [], "name": "decimals", "outputs": [ { "name": "", "type": "uint8" } ], "payable": false, "stateMutability": "view", "type": "function" },
|
|
{ "constant": true, "inputs": [ { "name": "_owner", "type": "address" } ], "name": "balanceOf", "outputs": [ { "name": "balance", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" },
|
|
{ "constant": true, "inputs": [], "name": "symbol", "outputs": [ { "name": "", "type": "string" } ], "payable": false, "stateMutability": "view", "type": "function" },
|
|
{ "constant": false, "inputs": [ { "name": "_to", "type": "address" }, { "name": "_value", "type": "uint256" } ], "name": "transfer", "outputs": [ { "name": "", "type": "bool" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" },
|
|
{ "constant": true, "inputs": [ { "name": "_owner", "type": "address" }, { "name": "_spender", "type": "address" } ], "name": "allowance", "outputs": [ { "name": "", "type": "uint256" } ], "payable": false, "stateMutability": "view", "type": "function" },
|
|
{ "payable": true, "stateMutability": "payable", "type": "fallback" },
|
|
{ "anonymous": false, "inputs": [ { "indexed": true, "name": "owner", "type": "address" }, { "indexed": true, "name": "spender", "type": "address" }, { "indexed": false, "name": "value", "type": "uint256" } ], "name": "Approval", "type": "event" },
|
|
{ "anonymous": false, "inputs": [ { "indexed": true, "name": "from", "type": "address" }, { "indexed": true, "name": "to", "type": "address" }, { "indexed": false, "name": "value", "type": "uint256" } ], "name": "Transfer", "type": "event" }
|
|
]`,
|
|
event: "Transfer(address,address,uint256)",
|
|
},
|
|
}
|
|
|
|
for testnum, test := range tests {
|
|
abi, err := JSON(strings.NewReader(test.json))
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
|
|
topic := test.event
|
|
topicID := crypto.Keccak256Hash([]byte(topic))
|
|
|
|
event, err := abi.EventByID(topicID)
|
|
if err != nil {
|
|
t.Fatalf("Failed to look up ABI method: %v, test #%d", err, testnum)
|
|
}
|
|
if event == nil {
|
|
t.Errorf("We should find a event for topic %s, test #%d", topicID.Hex(), testnum)
|
|
}
|
|
|
|
if event.ID != topicID {
|
|
t.Errorf("Event id %s does not match topic %s, test #%d", event.ID.Hex(), topicID.Hex(), testnum)
|
|
}
|
|
|
|
unknowntopicID := crypto.Keccak256Hash([]byte("unknownEvent"))
|
|
unknownEvent, err := abi.EventByID(unknowntopicID)
|
|
if err == nil {
|
|
t.Errorf("EventByID should return an error if a topic is not found, test #%d", testnum)
|
|
}
|
|
if unknownEvent != nil {
|
|
t.Errorf("We should not find any event for topic %s, test #%d", unknowntopicID.Hex(), testnum)
|
|
}
|
|
}
|
|
}
|
|
|
|
// TestDoubleDuplicateMethodNames checks that if transfer0 already exists, there won't be a name
|
|
// conflict and that the second transfer method will be renamed transfer1.
|
|
func TestDoubleDuplicateMethodNames(t *testing.T) {
|
|
abiJSON := `[{"constant":false,"inputs":[{"name":"to","type":"address"},{"name":"value","type":"uint256"}],"name":"transfer","outputs":[{"name":"ok","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"to","type":"address"},{"name":"value","type":"uint256"},{"name":"data","type":"bytes"}],"name":"transfer0","outputs":[{"name":"ok","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"},{"constant":false,"inputs":[{"name":"to","type":"address"},{"name":"value","type":"uint256"},{"name":"data","type":"bytes"},{"name":"customFallback","type":"string"}],"name":"transfer","outputs":[{"name":"ok","type":"bool"}],"payable":false,"stateMutability":"nonpayable","type":"function"}]`
|
|
contractAbi, err := JSON(strings.NewReader(abiJSON))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if _, ok := contractAbi.Methods["transfer"]; !ok {
|
|
t.Fatalf("Could not find original method")
|
|
}
|
|
if _, ok := contractAbi.Methods["transfer0"]; !ok {
|
|
t.Fatalf("Could not find duplicate method")
|
|
}
|
|
if _, ok := contractAbi.Methods["transfer1"]; !ok {
|
|
t.Fatalf("Could not find duplicate method")
|
|
}
|
|
if _, ok := contractAbi.Methods["transfer2"]; ok {
|
|
t.Fatalf("Should not have found extra method")
|
|
}
|
|
}
|
|
|
|
// TestDoubleDuplicateEventNames checks that if send0 already exists, there won't be a name
|
|
// conflict and that the second send event will be renamed send1.
|
|
// The test runs the abi of the following contract.
|
|
// contract DuplicateEvent {
|
|
// event send(uint256 a);
|
|
// event send0();
|
|
// event send();
|
|
// }
|
|
func TestDoubleDuplicateEventNames(t *testing.T) {
|
|
abiJSON := `[{"anonymous": false,"inputs": [{"indexed": false,"internalType": "uint256","name": "a","type": "uint256"}],"name": "send","type": "event"},{"anonymous": false,"inputs": [],"name": "send0","type": "event"},{ "anonymous": false, "inputs": [],"name": "send","type": "event"}]`
|
|
contractAbi, err := JSON(strings.NewReader(abiJSON))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if _, ok := contractAbi.Events["send"]; !ok {
|
|
t.Fatalf("Could not find original event")
|
|
}
|
|
if _, ok := contractAbi.Events["send0"]; !ok {
|
|
t.Fatalf("Could not find duplicate event")
|
|
}
|
|
if _, ok := contractAbi.Events["send1"]; !ok {
|
|
t.Fatalf("Could not find duplicate event")
|
|
}
|
|
if _, ok := contractAbi.Events["send2"]; ok {
|
|
t.Fatalf("Should not have found extra event")
|
|
}
|
|
}
|
|
|
|
// TestUnnamedEventParam checks that an event with unnamed parameters is
|
|
// correctly handled.
|
|
// The test runs the abi of the following contract.
|
|
// contract TestEvent {
|
|
// event send(uint256, uint256);
|
|
// }
|
|
func TestUnnamedEventParam(t *testing.T) {
|
|
abiJSON := `[{ "anonymous": false, "inputs": [{ "indexed": false,"internalType": "uint256", "name": "","type": "uint256"},{"indexed": false,"internalType": "uint256","name": "","type": "uint256"}],"name": "send","type": "event"}]`
|
|
contractAbi, err := JSON(strings.NewReader(abiJSON))
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
event, ok := contractAbi.Events["send"]
|
|
if !ok {
|
|
t.Fatalf("Could not find event")
|
|
}
|
|
if event.Inputs[0].Name != "arg0" {
|
|
t.Fatalf("Could not find input")
|
|
}
|
|
if event.Inputs[1].Name != "arg1" {
|
|
t.Fatalf("Could not find input")
|
|
}
|
|
}
|
|
|
|
func TestUnpackRevert(t *testing.T) {
|
|
t.Parallel()
|
|
|
|
var cases = []struct {
|
|
input string
|
|
expect string
|
|
expectErr error
|
|
}{
|
|
{"", "", errors.New("invalid data for unpacking")},
|
|
{"08c379a1", "", errors.New("invalid data for unpacking")},
|
|
{"08c379a00000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000000d72657665727420726561736f6e00000000000000000000000000000000000000", "revert reason", nil},
|
|
}
|
|
for index, c := range cases {
|
|
t.Run(fmt.Sprintf("case %d", index), func(t *testing.T) {
|
|
got, err := UnpackRevert(common.Hex2Bytes(c.input))
|
|
if c.expectErr != nil {
|
|
if err == nil {
|
|
t.Fatalf("Expected non-nil error")
|
|
}
|
|
if err.Error() != c.expectErr.Error() {
|
|
t.Fatalf("Expected error mismatch, want %v, got %v", c.expectErr, err)
|
|
}
|
|
return
|
|
}
|
|
if c.expect != got {
|
|
t.Fatalf("Output mismatch, want %v, got %v", c.expect, got)
|
|
}
|
|
})
|
|
}
|
|
}
|