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// Copyright 2015 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The go-ethereum library 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package tests
import (
"bytes"
"fmt"
"reflect"
"testing"
"github.com/ethereum/go-ethereum/core/vm"
)
func TestState(t *testing.T) {
t.Parallel()
st := new(testMatcher)
// Long tests:
st.skipShortMode(`^stQuadraticComplexityTest/`)
// Broken tests:
st.skipLoad(`^stTransactionTest/OverflowGasRequire\.json`) // gasLimit > 256 bits
st.skipLoad(`^stTransactionTest/zeroSigTransa[^/]*\.json`) // EIP-86 is not supported yet
// Expected failures:
st.fails(`^stRevertTest/RevertPrecompiledTouch\.json/EIP158`, "bug in test")
st.fails(`^stRevertTest/RevertPrecompiledTouch\.json/Byzantium`, "bug in test")
st.walk(t, stateTestDir, func(t *testing.T, name string, test *StateTest) {
for _, subtest := range test.Subtests() {
subtest := subtest
key := fmt.Sprintf("%s/%d", subtest.Fork, subtest.Index)
name := name + "/" + key
t.Run(key, func(t *testing.T) {
if subtest.Fork == "Constantinople" {
t.Skip("constantinople not supported yet")
}
withTrace(t, test.gasLimit(subtest), func(vmconfig vm.Config) error {
_, err := test.Run(subtest, vmconfig)
return st.checkFailure(t, name, err)
})
})
}
})
}
// Transactions with gasLimit above this value will not get a VM trace on failure.
const traceErrorLimit = 400000
func withTrace(t *testing.T, gasLimit uint64, test func(vm.Config) error) {
err := test(vm.Config{})
if err == nil {
return
}
t.Error(err)
if gasLimit > traceErrorLimit {
t.Log("gas limit too high for EVM trace")
return
}
tracer := vm.NewStructLogger(nil)
err2 := test(vm.Config{Debug: true, Tracer: tracer})
if !reflect.DeepEqual(err, err2) {
t.Errorf("different error for second run: %v", err2)
}
buf := new(bytes.Buffer)
vm.WriteTrace(buf, tracer.StructLogs())
if buf.Len() == 0 {
t.Log("no EVM operation logs generated")
} else {
t.Log("EVM operation log:\n" + buf.String())
}
t.Logf("EVM output: 0x%x", tracer.Output())
t.Logf("EVM error: %v", tracer.Error())
}
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