mirror of
https://github.com/ethereum/go-ethereum.git
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dc619990f5
* doc: licensing of libevm extensions and modifications * chore: add license headers via linter * chore: `golangci-lint run --fix` * chore: `golangci-lint run --fix` * chore: fix `libevm/libevm.go` header * chore: `s/extensions/additions/` * chore: add missing headers
49 lines
1.7 KiB
Go
49 lines
1.7 KiB
Go
// Copyright 2024 the libevm authors.
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//
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// The libevm additions to go-ethereum are free software: you can redistribute
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// them and/or modify them under the terms of the GNU Lesser General Public License
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// as published by the Free Software Foundation, either version 3 of the License,
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// or (at your option) any later version.
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//
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// The libevm additions are distributed in the hope that they 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 GNU Lesser
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// 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
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// <http://www.gnu.org/licenses/>.
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package vm
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import (
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"math/big"
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"testing"
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"github.com/stretchr/testify/require"
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"github.com/ethereum/go-ethereum/params"
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)
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type chainIDOverrider struct {
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chainID int64
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}
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func (o chainIDOverrider) OverrideNewEVMArgs(args *NewEVMArgs) *NewEVMArgs {
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args.ChainConfig = ¶ms.ChainConfig{ChainID: big.NewInt(o.chainID)}
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return args
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}
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func TestOverrideNewEVMArgs(t *testing.T) {
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// The overrideNewEVMArgs function accepts and returns all arguments to
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// NewEVM(), in order. Here we lock in our assumption of that order. If this
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// breaks then all functionality overriding the args MUST be updated.
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var _ func(BlockContext, TxContext, StateDB, *params.ChainConfig, Config) *EVM = NewEVM
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const chainID = 13579
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libevmHooks = nil
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RegisterHooks(chainIDOverrider{chainID: chainID})
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defer func() { libevmHooks = nil }()
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got := NewEVM(BlockContext{}, TxContext{}, nil, nil, Config{}).ChainConfig().ChainID
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require.Equal(t, big.NewInt(chainID), got)
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}
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