81 lines
2.3 KiB
Go
81 lines
2.3 KiB
Go
// Copyright 2019 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 bind_test
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import (
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"context"
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"math/big"
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"testing"
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ethereum "github.com/ethereum/go-ethereum"
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"github.com/ethereum/go-ethereum/accounts/abi"
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"github.com/ethereum/go-ethereum/accounts/abi/bind"
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"github.com/ethereum/go-ethereum/common"
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)
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type mockCaller struct {
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codeAtBlockNumber *big.Int
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callContractBlockNumber *big.Int
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}
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func (mc *mockCaller) CodeAt(ctx context.Context, contract common.Address, blockNumber *big.Int) ([]byte, error) {
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mc.codeAtBlockNumber = blockNumber
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return []byte{1, 2, 3}, nil
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}
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func (mc *mockCaller) CallContract(ctx context.Context, call ethereum.CallMsg, blockNumber *big.Int) ([]byte, error) {
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mc.callContractBlockNumber = blockNumber
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return nil, nil
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}
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func TestPassingBlockNumber(t *testing.T) {
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mc := &mockCaller{}
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bc := bind.NewBoundContract(common.HexToAddress("0x0"), abi.ABI{
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Methods: map[string]abi.Method{
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"something": {
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Name: "something",
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Outputs: abi.Arguments{},
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},
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},
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}, mc, nil, nil)
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var ret string
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blockNumber := big.NewInt(42)
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bc.Call(&bind.CallOpts{BlockNumber: blockNumber}, &ret, "something")
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if mc.callContractBlockNumber != blockNumber {
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t.Fatalf("CallContract() was not passed the block number")
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}
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if mc.codeAtBlockNumber != blockNumber {
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t.Fatalf("CodeAt() was not passed the block number")
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}
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bc.Call(&bind.CallOpts{}, &ret, "something")
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if mc.callContractBlockNumber != nil {
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t.Fatalf("CallContract() was passed a block number when it should not have been")
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}
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if mc.codeAtBlockNumber != nil {
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t.Fatalf("CodeAt() was passed a block number when it should not have been")
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}
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}
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