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internal/ethapi: fix precompile override for eth_estimateGas (#31795)
Fix and close https://github.com/ethereum/go-ethereum/issues/31719. --------- Co-authored-by: Sina Mahmoodi <itz.s1na@gmail.com>
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6191f31508
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7db6c91254
2 changed files with 51 additions and 1 deletions
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@ -829,7 +829,15 @@ func DoEstimateGas(ctx context.Context, b Backend, args TransactionArgs, blockNr
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if state == nil || err != nil {
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return 0, err
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}
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if err := overrides.Apply(state, nil); err != nil {
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blockCtx := core.NewEVMBlockContext(header, NewChainContext(ctx, b), nil)
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if blockOverrides != nil {
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if err := blockOverrides.Apply(&blockCtx); err != nil {
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return 0, err
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}
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}
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rules := b.ChainConfig().Rules(blockCtx.BlockNumber, blockCtx.Random != nil, blockCtx.Time)
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precompiles := vm.ActivePrecompiledContracts(rules)
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if err := overrides.Apply(state, precompiles); err != nil {
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return 0, err
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}
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// Construct the gas estimator option from the user input
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@ -3725,3 +3725,45 @@ func TestCreateAccessListWithStateOverrides(t *testing.T) {
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}}
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require.Equal(t, expected, result.Accesslist)
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}
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func TestEstimateGasWithMovePrecompile(t *testing.T) {
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t.Parallel()
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// Initialize test accounts
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var (
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accounts = newAccounts(2)
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genesis = &core.Genesis{
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Config: params.MergedTestChainConfig,
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Alloc: types.GenesisAlloc{
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accounts[0].addr: {Balance: big.NewInt(params.Ether)},
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},
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}
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)
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backend := newTestBackend(t, 1, genesis, beacon.New(ethash.NewFaker()), func(i int, b *core.BlockGen) {
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b.SetPoS()
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})
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api := NewBlockChainAPI(backend)
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// Move SHA256 precompile (0x2) to a new address (0x100)
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// and estimate gas for calling the moved precompile.
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var (
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sha256Addr = common.BytesToAddress([]byte{0x2})
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newSha256Addr = common.BytesToAddress([]byte{0x10, 0})
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sha256Input = hexutil.Bytes([]byte("hello"))
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args = TransactionArgs{
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From: &accounts[0].addr,
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To: &newSha256Addr,
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Data: &sha256Input,
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}
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overrides = &override.StateOverride{
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sha256Addr: override.OverrideAccount{
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MovePrecompileTo: &newSha256Addr,
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},
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}
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)
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gas, err := api.EstimateGas(context.Background(), args, nil, overrides, nil)
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if err != nil {
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t.Fatalf("EstimateGas failed: %v", err)
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}
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if gas != 21366 {
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t.Fatalf("mismatched gas: %d, want 21366", gas)
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}
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}
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