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authorobscuren <geffobscura@gmail.com>2014-11-10 18:47:37 +0800
committerobscuren <geffobscura@gmail.com>2014-11-10 18:47:37 +0800
commitd30571a7a84de5a1a3287e764210a3803d7a307f (patch)
tree941126756bb727bf3b02577f38f386ec18e0d372
parentcbeebcd47da846e1b8990313f1ff1ffe7d0bf00f (diff)
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Added VM testing tool
-rw-r--r--cmd/evm/main.go109
-rw-r--r--vm/vm_debug.go3
-rw-r--r--vm/vm_test.go18
3 files changed, 128 insertions, 2 deletions
diff --git a/cmd/evm/main.go b/cmd/evm/main.go
new file mode 100644
index 000000000..984fd6c57
--- /dev/null
+++ b/cmd/evm/main.go
@@ -0,0 +1,109 @@
+/*
+ This file is part of go-ethereum
+
+ go-ethereum is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ go-ethereum is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * @authors
+ * Jeffrey Wilcke <i@jev.io>
+ * @date 2014
+ *
+ */
+
+package main
+
+import (
+ "flag"
+ "fmt"
+ "log"
+ "math/big"
+ "os"
+ "runtime"
+ "time"
+
+ "github.com/ethereum/go-ethereum/ethutil"
+ "github.com/ethereum/go-ethereum/logger"
+ "github.com/ethereum/go-ethereum/state"
+ "github.com/ethereum/go-ethereum/trie"
+ "github.com/ethereum/go-ethereum/vm"
+)
+
+var (
+ code = flag.String("code", "", "evm code")
+ loglevel = flag.Int("log", 4, "log level")
+ gas = flag.String("gas", "1000000", "gas amount")
+ price = flag.String("price", "0", "gas price")
+ dump = flag.Bool("dump", false, "dump state after run")
+)
+
+func perr(v ...interface{}) {
+ fmt.Println(v...)
+ //os.Exit(1)
+}
+
+func main() {
+ flag.Parse()
+
+ logger.AddLogSystem(logger.NewStdLogSystem(os.Stdout, log.LstdFlags, logger.LogLevel(*loglevel)))
+
+ ethutil.ReadConfig(".ethtest", "/tmp/evm", "")
+
+ stateObject := state.NewStateObject([]byte("evmuser"))
+ closure := vm.NewClosure(nil, stateObject, stateObject, ethutil.Hex2Bytes(*code), ethutil.Big(*gas), ethutil.Big(*price))
+
+ tstart := time.Now()
+
+ ret, _, e := closure.Call(vm.New(NewVmEnv(), vm.DebugVmTy), nil)
+
+ logger.Flush()
+ if e != nil {
+ perr(e)
+ }
+
+ var mem runtime.MemStats
+ runtime.ReadMemStats(&mem)
+ fmt.Printf("vm took %v\n", time.Since(tstart))
+ fmt.Printf(`alloc: %d
+tot alloc: %d
+no. malloc: %d
+heap alloc: %d
+heap objs: %d
+num gc: %d
+`, mem.Alloc, mem.TotalAlloc, mem.Mallocs, mem.HeapAlloc, mem.HeapObjects, mem.NumGC)
+
+ fmt.Printf("%x\n", ret)
+}
+
+type VmEnv struct {
+ state *state.State
+}
+
+func NewVmEnv() *VmEnv {
+ return &VmEnv{state.New(trie.New(nil, ""))}
+}
+
+func (VmEnv) Origin() []byte { return nil }
+func (VmEnv) BlockNumber() *big.Int { return nil }
+func (VmEnv) BlockHash() []byte { return nil }
+func (VmEnv) PrevHash() []byte { return nil }
+func (VmEnv) Coinbase() []byte { return nil }
+func (VmEnv) Time() int64 { return 0 }
+func (VmEnv) GasLimit() *big.Int { return nil }
+func (VmEnv) Difficulty() *big.Int { return nil }
+func (VmEnv) Value() *big.Int { return nil }
+func (self *VmEnv) State() *state.State { return self.state }
+func (VmEnv) AddLog(state.Log) {}
+func (VmEnv) Transfer(from, to vm.Account, amount *big.Int) error {
+ return nil
+}
diff --git a/vm/vm_debug.go b/vm/vm_debug.go
index ce7a29f99..2d34758f5 100644
--- a/vm/vm_debug.go
+++ b/vm/vm_debug.go
@@ -50,8 +50,7 @@ func (self *DebugVm) RunClosure(closure *Closure) (ret []byte, err error) {
ret = closure.Return(nil)
err = fmt.Errorf("%v", r)
- // No error should be set. Recover is used with require
- // Is this too error prone?
+
}
}()
}
diff --git a/vm/vm_test.go b/vm/vm_test.go
index f5d77cbff..948dd835f 100644
--- a/vm/vm_test.go
+++ b/vm/vm_test.go
@@ -169,3 +169,21 @@ func TestBuildInRipemd(t *testing.T) {
t.Errorf("Expected %x, got %x", exp, ret)
}
}
+
+func TestOog(t *testing.T) {
+ // This tests takes a long time and will eventually run out of gas
+ //t.Skip()
+
+ logger.AddLogSystem(logger.NewStdLogSystem(os.Stdout, log.LstdFlags, logger.InfoLevel))
+
+ ethutil.ReadConfig(".ethtest", "/tmp/ethtest", "")
+
+ stateObject := state.NewStateObject([]byte{'j', 'e', 'f', 'f'})
+ closure := NewClosure(nil, stateObject, stateObject, ethutil.Hex2Bytes("60ff60ff600057"), big.NewInt(1000000), big.NewInt(0))
+
+ vm := New(TestEnv{}, DebugVmTy)
+ _, _, e := closure.Call(vm, nil)
+ if e != nil {
+ fmt.Println(e)
+ }
+}