mirror of https://github.com/ethereum/go-ethereum
The EVM is now initialised with an additional configured object that allows you to turn on debugging options.pull/2141/head
Jeffrey Wilcke
9 years ago
committed by
Jeffrey Wilcke
parent
342ae7ce7d
commit
14013372ae
@ -0,0 +1,104 @@ |
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// Copyright 2016 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 vm |
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import ( |
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"math/big" |
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"testing" |
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"github.com/ethereum/go-ethereum/common" |
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) |
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type dummyContractRef struct { |
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calledForEach bool |
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} |
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func (dummyContractRef) ReturnGas(*big.Int, *big.Int) {} |
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func (dummyContractRef) Address() common.Address { return common.Address{} } |
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func (dummyContractRef) Value() *big.Int { return new(big.Int) } |
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func (dummyContractRef) SetCode([]byte) {} |
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func (d *dummyContractRef) ForEachStorage(callback func(key, value common.Hash) bool) { |
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d.calledForEach = true |
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} |
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func (d *dummyContractRef) SubBalance(amount *big.Int) {} |
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func (d *dummyContractRef) AddBalance(amount *big.Int) {} |
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func (d *dummyContractRef) SetBalance(*big.Int) {} |
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func (d *dummyContractRef) SetNonce(uint64) {} |
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func (d *dummyContractRef) Balance() *big.Int { return new(big.Int) } |
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type dummyEnv struct { |
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*Env |
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ref *dummyContractRef |
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} |
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func newDummyEnv(ref *dummyContractRef) *dummyEnv { |
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return &dummyEnv{ |
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Env: NewEnv(), |
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ref: ref, |
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} |
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} |
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func (d dummyEnv) GetAccount(common.Address) Account { |
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return d.ref |
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} |
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func (d dummyEnv) AddStructLog(StructLog) {} |
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func TestStoreCapture(t *testing.T) { |
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var ( |
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env = NewEnv() |
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logger = newLogger(LogConfig{Collector: env}, env) |
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mem = NewMemory() |
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stack = newstack() |
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contract = NewContract(&dummyContractRef{}, &dummyContractRef{}, new(big.Int), new(big.Int), new(big.Int)) |
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) |
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stack.push(big.NewInt(1)) |
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stack.push(big.NewInt(0)) |
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var index common.Hash |
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logger.captureState(0, SSTORE, new(big.Int), new(big.Int), mem, stack, contract, nil) |
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if len(logger.changedValues[contract.Address()]) == 0 { |
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t.Fatalf("expected exactly 1 changed value on address %x, got %d", contract.Address(), len(logger.changedValues[contract.Address()])) |
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} |
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exp := common.BigToHash(big.NewInt(1)) |
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if logger.changedValues[contract.Address()][index] != exp { |
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t.Errorf("expected %x, got %x", exp, logger.changedValues[contract.Address()][index]) |
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} |
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} |
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func TestStorageCapture(t *testing.T) { |
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t.Skip("implementing this function is difficult. it requires all sort of interfaces to be implemented which isn't trivial. The value (the actual test) isn't worth it") |
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var ( |
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ref = &dummyContractRef{} |
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contract = NewContract(ref, ref, new(big.Int), new(big.Int), new(big.Int)) |
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env = newDummyEnv(ref) |
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logger = newLogger(LogConfig{Collector: env}, env) |
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mem = NewMemory() |
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stack = newstack() |
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) |
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logger.captureState(0, STOP, new(big.Int), new(big.Int), mem, stack, contract, nil) |
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if ref.calledForEach { |
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t.Error("didn't expect for each to be called") |
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} |
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logger = newLogger(LogConfig{Collector: env, FullStorage: true}, env) |
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logger.captureState(0, STOP, new(big.Int), new(big.Int), mem, stack, contract, nil) |
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if !ref.calledForEach { |
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t.Error("expected for each to be called") |
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} |
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} |
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