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add a (failing) test

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Signed-off-by: Guillaume Ballet <3272758+gballet@users.noreply.github.com>
This commit is contained in:
Guillaume Ballet 2025-05-15 22:08:02 +02:00
parent 379278ff3a
commit 9153a01e1d
1 changed files with 49 additions and 0 deletions
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49
eth/tracers/tracers_test.go
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@ -23,6 +23,7 @@ import (
"github.com/ethereum/go-ethereum/common" "github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/core" "github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/rawdb" "github.com/ethereum/go-ethereum/core/rawdb"
"github.com/ethereum/go-ethereum/core/tracing"
"github.com/ethereum/go-ethereum/core/types" "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/core/vm" "github.com/ethereum/go-ethereum/core/vm"
"github.com/ethereum/go-ethereum/crypto" "github.com/ethereum/go-ethereum/crypto"
@ -100,3 +101,51 @@ func BenchmarkTransactionTraceV2(b *testing.B) {
state.StateDB.RevertToSnapshot(snap) state.StateDB.RevertToSnapshot(snap)
} }
} }
func TestSafeTracer(t *testing.T) {
key, _ := crypto.HexToECDSA("b71c71a67e1177ad4e901695e1b4b9ee17ae16c6668d313eac2f96dbcda3f291")
from := crypto.PubkeyToAddress(key.PublicKey)
gas := uint64(1000000) // 1M gas
context := vm.BlockContext{
CanTransfer: core.CanTransfer,
Transfer: core.Transfer,
Coinbase: common.Address{},
BlockNumber: new(big.Int).SetUint64(uint64(5)),
Time: 5,
Difficulty: big.NewInt(0xffffffff),
GasLimit: gas,
BaseFee: big.NewInt(8),
}
alloc := types.GenesisAlloc{}
// The code pushes 'deadbeef' into memory, then the other params, and calls CREATE2, then returns
// the address
loop := []byte{
byte(vm.JUMPDEST), // [ count ]
byte(vm.PUSH1), 0, // jumpdestination
byte(vm.JUMP),
}
alloc[common.HexToAddress("0x00000000000000000000000000000000deadbeef")] = types.Account{
Nonce: 1,
Code: loop,
Balance: big.NewInt(1),
}
alloc[from] = types.Account{
Nonce: 1,
Code: []byte{},
Balance: big.NewInt(500000000000000),
}
state := tests.MakePreState(rawdb.NewMemoryDatabase(), alloc, false, rawdb.HashScheme)
defer state.Close()
evm := vm.NewEVM(context, state.StateDB, params.AllEthashProtocolChanges, vm.Config{})
faultyTracer := &tracing.Hooks{OnTxStart: func(*tracing.VMContext, *types.Transaction, common.Address) {
panic("someone mispronounced clef")
}}
safeHooks, err := NewRecoverTracer(nil, faultyTracer)
if err != nil {
t.Fatal(err)
}
evm.Config.Tracer = safeHooks
evm.Config.Tracer.OnTxStart(nil, nil, common.Address{})
}