/accounts/abi/abi_test.go
Go | 395 lines | 317 code | 60 blank | 18 comment | 104 complexity | 631213ba0a2178cc5ee4a1435614c279 MD5 | raw file
- // Copyright 2015 The go-ethereum Authors
- // This file is part of the go-ethereum library.
- //
- // The go-ethereum library is free software: you can redistribute it and/or modify
- // it under the terms of the GNU Lesser General Public License as published by
- // the Free Software Foundation, either version 3 of the License, or
- // (at your option) any later version.
- //
- // The go-ethereum library is distributed in the hope that it will be useful,
- // but WITHOUT ANY WARRANTY; without even the implied warranty of
- // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- // GNU Lesser General Public License for more details.
- //
- // You should have received a copy of the GNU Lesser General Public License
- // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
- package abi
- import (
- "bytes"
- "fmt"
- "log"
- "math/big"
- "reflect"
- "strings"
- "testing"
- "github.com/ethereum/go-ethereum/common"
- "github.com/ethereum/go-ethereum/crypto"
- )
- const jsondata = `
- [
- { "name" : "balance", "const" : true },
- { "name" : "send", "const" : false, "inputs" : [ { "name" : "amount", "type" : "uint256" } ] }
- ]`
- const jsondata2 = `
- [
- { "name" : "balance", "const" : true },
- { "name" : "send", "const" : false, "inputs" : [ { "name" : "amount", "type" : "uint256" } ] },
- { "name" : "test", "const" : false, "inputs" : [ { "name" : "number", "type" : "uint32" } ] },
- { "name" : "string", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "string" } ] },
- { "name" : "bool", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "bool" } ] },
- { "name" : "address", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "address" } ] },
- { "name" : "string32", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "string32" } ] },
- { "name" : "uint64[2]", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "uint64[2]" } ] },
- { "name" : "uint64[]", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "uint64[]" } ] },
- { "name" : "foo", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "uint32" } ] },
- { "name" : "bar", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "uint32" }, { "name" : "string", "type" : "uint16" } ] },
- { "name" : "slice", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "uint32[2]" } ] },
- { "name" : "slice256", "const" : false, "inputs" : [ { "name" : "inputs", "type" : "uint256[2]" } ] }
- ]`
- func TestType(t *testing.T) {
- typ, err := NewType("uint32")
- if err != nil {
- t.Error(err)
- }
- if typ.Kind != reflect.Ptr {
- t.Error("expected uint32 to have kind Ptr")
- }
- typ, err = NewType("uint32[]")
- if err != nil {
- t.Error(err)
- }
- if typ.Kind != reflect.Slice {
- t.Error("expected uint32[] to have type slice")
- }
- if typ.Type != ubig_ts {
- t.Error("expcted uith32[] to have type uint64")
- }
- typ, err = NewType("uint32[2]")
- if err != nil {
- t.Error(err)
- }
- if typ.Kind != reflect.Slice {
- t.Error("expected uint32[2] to have kind slice")
- }
- if typ.Type != ubig_ts {
- t.Error("expcted uith32[2] to have type uint64")
- }
- if typ.Size != 2 {
- t.Error("expected uint32[2] to have a size of 2")
- }
- }
- func TestReader(t *testing.T) {
- Uint256, _ := NewType("uint256")
- exp := ABI{
- Methods: map[string]Method{
- "balance": Method{
- "balance", true, nil, Type{},
- },
- "send": Method{
- "send", false, []Argument{
- Argument{"amount", Uint256},
- }, Type{},
- },
- },
- }
- abi, err := JSON(strings.NewReader(jsondata))
- if err != nil {
- t.Error(err)
- }
- // deep equal fails for some reason
- t.Skip()
- if !reflect.DeepEqual(abi, exp) {
- t.Errorf("\nabi: %v\ndoes not match exp: %v", abi, exp)
- }
- }
- func TestTestNumbers(t *testing.T) {
- abi, err := JSON(strings.NewReader(jsondata2))
- if err != nil {
- t.Error(err)
- t.FailNow()
- }
- if _, err := abi.Pack("balance"); err != nil {
- t.Error(err)
- }
- if _, err := abi.Pack("balance", 1); err == nil {
- t.Error("expected error for balance(1)")
- }
- if _, err := abi.Pack("doesntexist", nil); err == nil {
- t.Errorf("doesntexist shouldn't exist")
- }
- if _, err := abi.Pack("doesntexist", 1); err == nil {
- t.Errorf("doesntexist(1) shouldn't exist")
- }
- if _, err := abi.Pack("send", big.NewInt(1000)); err != nil {
- t.Error(err)
- }
- i := new(int)
- *i = 1000
- if _, err := abi.Pack("send", i); err == nil {
- t.Errorf("expected send( ptr ) to throw, requires *big.Int instead of *int")
- }
- if _, err := abi.Pack("send", 1000); err != nil {
- t.Error("expected send(1000) to cast to big")
- }
- if _, err := abi.Pack("test", uint32(1000)); err != nil {
- t.Error(err)
- }
- }
- func TestTestString(t *testing.T) {
- abi, err := JSON(strings.NewReader(jsondata2))
- if err != nil {
- t.Error(err)
- t.FailNow()
- }
- if _, err := abi.Pack("string", "hello world"); err != nil {
- t.Error(err)
- }
- str10 := string(make([]byte, 10))
- if _, err := abi.Pack("string32", str10); err != nil {
- t.Error(err)
- }
- str32 := string(make([]byte, 32))
- if _, err := abi.Pack("string32", str32); err != nil {
- t.Error(err)
- }
- str33 := string(make([]byte, 33))
- if _, err := abi.Pack("string32", str33); err == nil {
- t.Error("expected str33 to throw out of bound error")
- }
- }
- func TestTestBool(t *testing.T) {
- abi, err := JSON(strings.NewReader(jsondata2))
- if err != nil {
- t.Error(err)
- t.FailNow()
- }
- if _, err := abi.Pack("bool", true); err != nil {
- t.Error(err)
- }
- }
- func TestTestSlice(t *testing.T) {
- abi, err := JSON(strings.NewReader(jsondata2))
- if err != nil {
- t.Error(err)
- t.FailNow()
- }
- addr := make([]byte, 20)
- if _, err := abi.Pack("address", addr); err != nil {
- t.Error(err)
- }
- addr = make([]byte, 21)
- if _, err := abi.Pack("address", addr); err == nil {
- t.Error("expected address of 21 width to throw")
- }
- slice := make([]byte, 2)
- if _, err := abi.Pack("uint64[2]", slice); err != nil {
- t.Error(err)
- }
- if _, err := abi.Pack("uint64[]", slice); err != nil {
- t.Error(err)
- }
- }
- func TestTestAddress(t *testing.T) {
- abi, err := JSON(strings.NewReader(jsondata2))
- if err != nil {
- t.Error(err)
- t.FailNow()
- }
- addr := make([]byte, 20)
- if _, err := abi.Pack("address", addr); err != nil {
- t.Error(err)
- }
- }
- func TestMethodSignature(t *testing.T) {
- String, _ := NewType("string")
- String32, _ := NewType("string32")
- m := Method{"foo", false, []Argument{Argument{"bar", String32}, Argument{"baz", String}}, Type{}}
- exp := "foo(string32,string)"
- if m.String() != exp {
- t.Error("signature mismatch", exp, "!=", m.String())
- }
- idexp := crypto.Sha3([]byte(exp))[:4]
- if !bytes.Equal(m.Id(), idexp) {
- t.Errorf("expected ids to match %x != %x", m.Id(), idexp)
- }
- uintt, _ := NewType("uint")
- m = Method{"foo", false, []Argument{Argument{"bar", uintt}}, Type{}}
- exp = "foo(uint256)"
- if m.String() != exp {
- t.Error("signature mismatch", exp, "!=", m.String())
- }
- }
- func TestPack(t *testing.T) {
- abi, err := JSON(strings.NewReader(jsondata2))
- if err != nil {
- t.Error(err)
- t.FailNow()
- }
- sig := crypto.Sha3([]byte("foo(uint32)"))[:4]
- sig = append(sig, make([]byte, 32)...)
- sig[35] = 10
- packed, err := abi.Pack("foo", uint32(10))
- if err != nil {
- t.Error(err)
- t.FailNow()
- }
- if !bytes.Equal(packed, sig) {
- t.Errorf("expected %x got %x", sig, packed)
- }
- }
- func TestMultiPack(t *testing.T) {
- abi, err := JSON(strings.NewReader(jsondata2))
- if err != nil {
- t.Error(err)
- t.FailNow()
- }
- sig := crypto.Sha3([]byte("bar(uint32,uint16)"))[:4]
- sig = append(sig, make([]byte, 64)...)
- sig[35] = 10
- sig[67] = 11
- packed, err := abi.Pack("bar", uint32(10), uint16(11))
- if err != nil {
- t.Error(err)
- t.FailNow()
- }
- if !bytes.Equal(packed, sig) {
- t.Errorf("expected %x got %x", sig, packed)
- }
- }
- func TestPackSlice(t *testing.T) {
- abi, err := JSON(strings.NewReader(jsondata2))
- if err != nil {
- t.Error(err)
- t.FailNow()
- }
- sig := crypto.Sha3([]byte("slice(uint32[2])"))[:4]
- sig = append(sig, make([]byte, 64)...)
- sig[35] = 1
- sig[67] = 2
- packed, err := abi.Pack("slice", []uint32{1, 2})
- if err != nil {
- t.Error(err)
- t.FailNow()
- }
- if !bytes.Equal(packed, sig) {
- t.Errorf("expected %x got %x", sig, packed)
- }
- }
- func TestPackSliceBig(t *testing.T) {
- abi, err := JSON(strings.NewReader(jsondata2))
- if err != nil {
- t.Error(err)
- t.FailNow()
- }
- sig := crypto.Sha3([]byte("slice256(uint256[2])"))[:4]
- sig = append(sig, make([]byte, 64)...)
- sig[35] = 1
- sig[67] = 2
- packed, err := abi.Pack("slice256", []*big.Int{big.NewInt(1), big.NewInt(2)})
- if err != nil {
- t.Error(err)
- t.FailNow()
- }
- if !bytes.Equal(packed, sig) {
- t.Errorf("expected %x got %x", sig, packed)
- }
- }
- func ExampleJSON() {
- const definition = `[{"constant":true,"inputs":[{"name":"","type":"address"}],"name":"isBar","outputs":[{"name":"","type":"bool"}],"type":"function"}]`
- abi, err := JSON(strings.NewReader(definition))
- if err != nil {
- log.Fatalln(err)
- }
- out, err := abi.Pack("isBar", common.HexToAddress("01"))
- if err != nil {
- log.Fatalln(err)
- }
- fmt.Printf("%x\n", out)
- // Output:
- // 1f2c40920000000000000000000000000000000000000000000000000000000000000001
- }
- func TestBytes(t *testing.T) {
- const definition = `[
- { "name" : "balance", "const" : true, "inputs" : [ { "name" : "address", "type" : "bytes20" } ] },
- { "name" : "send", "const" : false, "inputs" : [ { "name" : "amount", "type" : "uint256" } ] }
- ]`
- abi, err := JSON(strings.NewReader(definition))
- if err != nil {
- t.Fatal(err)
- }
- ok := make([]byte, 20)
- _, err = abi.Pack("balance", ok)
- if err != nil {
- t.Error(err)
- }
- toosmall := make([]byte, 19)
- _, err = abi.Pack("balance", toosmall)
- if err != nil {
- t.Error(err)
- }
- toobig := make([]byte, 21)
- _, err = abi.Pack("balance", toobig)
- if err == nil {
- t.Error("expected error")
- }
- }