go-ethereum/accounts/abi/pack_test.go

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// Copyright 2017 The go-ethereum Authors
accounts/abi: reorganizing package with small fixes (#14610) * accounts/abi: reorganizing package and some notes and a quick correction of name. Signed-off-by: RJ Catalano <rj@monax.io> get rid of some imports Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: move file names Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix boolean decode function Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix for the array set and for creating a bool Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: be very very very correct Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix up error message and variable names Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: take out unnecessary argument in pack method Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: add bool unpack test and add a panic to readBool function Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix panic message Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: change from panic to basic error Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix nil to false Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fill out type regex tests and fill with the correct type for integers Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: move packNumbers into pack.go. Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: separation of the testing suite into appropriately named files. Signed-off-by: RJ Catalano <rj@monax.io> * account/abi: change to hex string tests. Signed-off-by: RJ Catalano <rj@monax.io> * account/abi: fix up rest of tests to hex Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: declare bool at the package level Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: use errors package in the error file. Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix ugly hack and fix error type declaration. Signed-off-by: RJ Catalano <rj@monax.io>
2017-06-27 03:05:33 -05:00
// 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"
"math"
"math/big"
"reflect"
"strings"
"testing"
"github.com/ethereum/go-ethereum/common"
)
func TestPack(t *testing.T) {
for i, test := range []struct {
typ string
input interface{}
output []byte
}{
{
"uint8",
uint8(2),
common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
},
{
"uint8[]",
[]uint8{1, 2},
common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
},
{
"uint16",
uint16(2),
common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
},
{
"uint16[]",
[]uint16{1, 2},
common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
},
{
"uint32",
uint32(2),
common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
},
{
"uint32[]",
[]uint32{1, 2},
common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
},
{
"uint64",
uint64(2),
common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
},
{
"uint64[]",
[]uint64{1, 2},
common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
},
{
"uint256",
big.NewInt(2),
common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
},
{
"uint256[]",
[]*big.Int{big.NewInt(1), big.NewInt(2)},
common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
},
{
"int8",
int8(2),
common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
},
{
"int8[]",
[]int8{1, 2},
common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
},
{
"int16",
int16(2),
common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
},
{
"int16[]",
[]int16{1, 2},
common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
},
{
"int32",
int32(2),
common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
},
{
"int32[]",
[]int32{1, 2},
common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
},
{
"int64",
int64(2),
common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
},
{
"int64[]",
[]int64{1, 2},
common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
},
{
"int256",
big.NewInt(2),
common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000002"),
},
{
"int256[]",
[]*big.Int{big.NewInt(1), big.NewInt(2)},
common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002"),
},
{
"bytes1",
[1]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes2",
[2]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes3",
[3]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes4",
[4]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes5",
[5]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes6",
[6]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes7",
[7]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes8",
[8]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes9",
[9]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes10",
[10]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes11",
[11]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes12",
[12]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes13",
[13]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes14",
[14]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes15",
[15]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes16",
[16]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes17",
[17]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes18",
[18]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes19",
[19]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes20",
[20]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes21",
[21]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes22",
[22]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes23",
[23]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes24",
[24]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes24",
[24]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes25",
[25]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes26",
[26]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes27",
[27]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes28",
[28]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes29",
[29]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes30",
[30]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes31",
[31]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"bytes32",
[32]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
accounts/abi: Abi binding support for nested arrays, fixes #15648, including nested array unpack fix (#15676) * accounts/abi/bind: support for multi-dim arrays Also: - reduce usage of regexes a bit. - fix minor Java syntax problems Fixes #15648 * accounts/abi/bind: Add some more documentation * accounts/abi/bind: Improve code readability * accounts/abi: bugfix for unpacking nested arrays The code previously assumed the arrays/slices were always 1 level deep. While the packing supports nested arrays (!!!). The current code for unpacking doesn't return the "consumed" length, so this fix had to work around that by calculating it (i.e. packing and getting resulting length) after the unpacking of the array element. It's far from ideal, but unpacking behaviour is fixed now. * accounts/abi: Fix unpacking of nested arrays Removed the temporary workaround of packing to calculate size, which was incorrect for slice-like types anyway. Full size of nested arrays is used now. * accounts/abi: deeply nested array unpack test Test unpacking of an array nested more than one level. * accounts/abi: Add deeply nested array pack test Same as the deep nested array unpack test, but the other way around. * accounts/abi/bind: deeply nested arrays bind test Test the usage of bindings that were generated for methods with multi-dimensional (and not just a single extra dimension, like foo[2][3]) array arguments and returns. edit: trigger rebuild, CI failed to fetch linter module. * accounts/abi/bind: improve array binding wrapArray uses a regex now, and arrayBindingJava is improved. * accounts/abi: Improve naming of element size func The full step size for unpacking an array is now retrieved with "getFullElemSize". * accounts/abi: support nested nested array args Previously, the code only considered the outer-size of the array, ignoring the size of the contents. This was fine for most types, but nested arrays are packed directly into it, and count towards the total size. This resulted in arguments following a nested array to replicate some of the binary contents of the array. The fix: for arrays, calculate their complete contents size: count the arg.Type.Elem.Size when Elem is an Array, and repeat when their child is an array too, etc. The count is the number of 32 byte elements, similar to how it previously counted, but nested. * accounts/abi: Test deep nested arr multi-arguments Arguments with a deeply nested array should not cause the next arguments to be read from the wrong position.
2018-03-04 16:24:17 -06:00
{
"uint32[2][3][4]",
[4][3][2]uint32{{{1, 2}, {3, 4}, {5, 6}}, {{7, 8}, {9, 10}, {11, 12}}, {{13, 14}, {15, 16}, {17, 18}}, {{19, 20}, {21, 22}, {23, 24}}},
common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000000400000000000000000000000000000000000000000000000000000000000000050000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000700000000000000000000000000000000000000000000000000000000000000080000000000000000000000000000000000000000000000000000000000000009000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000b000000000000000000000000000000000000000000000000000000000000000c000000000000000000000000000000000000000000000000000000000000000d000000000000000000000000000000000000000000000000000000000000000e000000000000000000000000000000000000000000000000000000000000000f000000000000000000000000000000000000000000000000000000000000001000000000000000000000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000000000000000000012000000000000000000000000000000000000000000000000000000000000001300000000000000000000000000000000000000000000000000000000000000140000000000000000000000000000000000000000000000000000000000000015000000000000000000000000000000000000000000000000000000000000001600000000000000000000000000000000000000000000000000000000000000170000000000000000000000000000000000000000000000000000000000000018"),
},
accounts/abi: reorganizing package with small fixes (#14610) * accounts/abi: reorganizing package and some notes and a quick correction of name. Signed-off-by: RJ Catalano <rj@monax.io> get rid of some imports Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: move file names Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix boolean decode function Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix for the array set and for creating a bool Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: be very very very correct Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix up error message and variable names Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: take out unnecessary argument in pack method Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: add bool unpack test and add a panic to readBool function Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix panic message Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: change from panic to basic error Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix nil to false Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fill out type regex tests and fill with the correct type for integers Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: move packNumbers into pack.go. Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: separation of the testing suite into appropriately named files. Signed-off-by: RJ Catalano <rj@monax.io> * account/abi: change to hex string tests. Signed-off-by: RJ Catalano <rj@monax.io> * account/abi: fix up rest of tests to hex Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: declare bool at the package level Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: use errors package in the error file. Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix ugly hack and fix error type declaration. Signed-off-by: RJ Catalano <rj@monax.io>
2017-06-27 03:05:33 -05:00
{
"address[]",
[]common.Address{{1}, {2}},
common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000200000000000000000000000001000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000"),
},
{
"bytes32[]",
[]common.Hash{{1}, {2}},
common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000000201000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000"),
},
{
"function",
[24]byte{1},
common.Hex2Bytes("0100000000000000000000000000000000000000000000000000000000000000"),
},
{
"string",
"foobar",
common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000006666f6f6261720000000000000000000000000000000000000000000000000000"),
},
} {
typ, err := NewType(test.typ)
if err != nil {
t.Fatalf("%v failed. Unexpected parse error: %v", i, err)
accounts/abi: reorganizing package with small fixes (#14610) * accounts/abi: reorganizing package and some notes and a quick correction of name. Signed-off-by: RJ Catalano <rj@monax.io> get rid of some imports Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: move file names Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix boolean decode function Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix for the array set and for creating a bool Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: be very very very correct Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix up error message and variable names Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: take out unnecessary argument in pack method Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: add bool unpack test and add a panic to readBool function Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix panic message Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: change from panic to basic error Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix nil to false Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fill out type regex tests and fill with the correct type for integers Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: move packNumbers into pack.go. Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: separation of the testing suite into appropriately named files. Signed-off-by: RJ Catalano <rj@monax.io> * account/abi: change to hex string tests. Signed-off-by: RJ Catalano <rj@monax.io> * account/abi: fix up rest of tests to hex Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: declare bool at the package level Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: use errors package in the error file. Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix ugly hack and fix error type declaration. Signed-off-by: RJ Catalano <rj@monax.io>
2017-06-27 03:05:33 -05:00
}
output, err := typ.pack(reflect.ValueOf(test.input))
if err != nil {
t.Fatalf("%v failed. Unexpected pack error: %v", i, err)
accounts/abi: reorganizing package with small fixes (#14610) * accounts/abi: reorganizing package and some notes and a quick correction of name. Signed-off-by: RJ Catalano <rj@monax.io> get rid of some imports Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: move file names Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix boolean decode function Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix for the array set and for creating a bool Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: be very very very correct Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix up error message and variable names Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: take out unnecessary argument in pack method Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: add bool unpack test and add a panic to readBool function Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix panic message Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: change from panic to basic error Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix nil to false Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fill out type regex tests and fill with the correct type for integers Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: move packNumbers into pack.go. Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: separation of the testing suite into appropriately named files. Signed-off-by: RJ Catalano <rj@monax.io> * account/abi: change to hex string tests. Signed-off-by: RJ Catalano <rj@monax.io> * account/abi: fix up rest of tests to hex Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: declare bool at the package level Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: use errors package in the error file. Signed-off-by: RJ Catalano <rj@monax.io> * accounts/abi: fix ugly hack and fix error type declaration. Signed-off-by: RJ Catalano <rj@monax.io>
2017-06-27 03:05:33 -05:00
}
if !bytes.Equal(output, test.output) {
t.Errorf("%d failed. Expected bytes: '%x' Got: '%x'", i, test.output, output)
}
}
}
func TestMethodPack(t *testing.T) {
abi, err := JSON(strings.NewReader(jsondata2))
if err != nil {
t.Fatal(err)
}
sig := abi.Methods["slice"].Id()
sig = append(sig, common.LeftPadBytes([]byte{1}, 32)...)
sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
packed, err := abi.Pack("slice", []uint32{1, 2})
if err != nil {
t.Error(err)
}
if !bytes.Equal(packed, sig) {
t.Errorf("expected %x got %x", sig, packed)
}
var addrA, addrB = common.Address{1}, common.Address{2}
sig = abi.Methods["sliceAddress"].Id()
sig = append(sig, common.LeftPadBytes([]byte{32}, 32)...)
sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
sig = append(sig, common.LeftPadBytes(addrA[:], 32)...)
sig = append(sig, common.LeftPadBytes(addrB[:], 32)...)
packed, err = abi.Pack("sliceAddress", []common.Address{addrA, addrB})
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(packed, sig) {
t.Errorf("expected %x got %x", sig, packed)
}
var addrC, addrD = common.Address{3}, common.Address{4}
sig = abi.Methods["sliceMultiAddress"].Id()
sig = append(sig, common.LeftPadBytes([]byte{64}, 32)...)
sig = append(sig, common.LeftPadBytes([]byte{160}, 32)...)
sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
sig = append(sig, common.LeftPadBytes(addrA[:], 32)...)
sig = append(sig, common.LeftPadBytes(addrB[:], 32)...)
sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
sig = append(sig, common.LeftPadBytes(addrC[:], 32)...)
sig = append(sig, common.LeftPadBytes(addrD[:], 32)...)
packed, err = abi.Pack("sliceMultiAddress", []common.Address{addrA, addrB}, []common.Address{addrC, addrD})
if err != nil {
t.Fatal(err)
}
if !bytes.Equal(packed, sig) {
t.Errorf("expected %x got %x", sig, packed)
}
sig = abi.Methods["slice256"].Id()
sig = append(sig, common.LeftPadBytes([]byte{1}, 32)...)
sig = append(sig, common.LeftPadBytes([]byte{2}, 32)...)
packed, err = abi.Pack("slice256", []*big.Int{big.NewInt(1), big.NewInt(2)})
if err != nil {
t.Error(err)
}
if !bytes.Equal(packed, sig) {
t.Errorf("expected %x got %x", sig, packed)
}
}
func TestPackNumber(t *testing.T) {
tests := []struct {
value reflect.Value
packed []byte
}{
// Protocol limits
{reflect.ValueOf(0), common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000000")},
{reflect.ValueOf(1), common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000000001")},
{reflect.ValueOf(-1), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff")},
// Type corner cases
{reflect.ValueOf(uint8(math.MaxUint8)), common.Hex2Bytes("00000000000000000000000000000000000000000000000000000000000000ff")},
{reflect.ValueOf(uint16(math.MaxUint16)), common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000ffff")},
{reflect.ValueOf(uint32(math.MaxUint32)), common.Hex2Bytes("00000000000000000000000000000000000000000000000000000000ffffffff")},
{reflect.ValueOf(uint64(math.MaxUint64)), common.Hex2Bytes("000000000000000000000000000000000000000000000000ffffffffffffffff")},
{reflect.ValueOf(int8(math.MaxInt8)), common.Hex2Bytes("000000000000000000000000000000000000000000000000000000000000007f")},
{reflect.ValueOf(int16(math.MaxInt16)), common.Hex2Bytes("0000000000000000000000000000000000000000000000000000000000007fff")},
{reflect.ValueOf(int32(math.MaxInt32)), common.Hex2Bytes("000000000000000000000000000000000000000000000000000000007fffffff")},
{reflect.ValueOf(int64(math.MaxInt64)), common.Hex2Bytes("0000000000000000000000000000000000000000000000007fffffffffffffff")},
{reflect.ValueOf(int8(math.MinInt8)), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff80")},
{reflect.ValueOf(int16(math.MinInt16)), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff8000")},
{reflect.ValueOf(int32(math.MinInt32)), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffffffffffff80000000")},
{reflect.ValueOf(int64(math.MinInt64)), common.Hex2Bytes("ffffffffffffffffffffffffffffffffffffffffffffffff8000000000000000")},
}
for i, tt := range tests {
packed := packNum(tt.value)
if !bytes.Equal(packed, tt.packed) {
t.Errorf("test %d: pack mismatch: have %x, want %x", i, packed, tt.packed)
}
}
}