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cmd/evm: add state transition tool for testing (#20958)

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This PR implements the EVM state transition tool, which is intended
to be the replacement for our retesteth client implementation.
Documentation is present in the cmd/evm/README.md file.

Co-authored-by: Felix Lange <fjl@twurst.com>
This commit is contained in:
Martin Holst Swende
2020-06-30 10:12:51 +02:00
committed by GitHub
parent dd91c7ce6a
commit e376d2fb31
37 changed files with 1509 additions and 48 deletions
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9
tests/state_test_util.go
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@ -112,11 +112,11 @@ type stTransactionMarshaling struct {
PrivateKey hexutil.Bytes
}
// getVMConfig takes a fork definition and returns a chain config.
// GetChainConfig takes a fork definition and returns a chain config.
// The fork definition can be
// - a plain forkname, e.g. `Byzantium`,
// - a fork basename, and a list of EIPs to enable; e.g. `Byzantium+1884+1283`.
func getVMConfig(forkString string) (baseConfig *params.ChainConfig, eips []int, err error) {
func GetChainConfig(forkString string) (baseConfig *params.ChainConfig, eips []int, err error) {
var (
splitForks = strings.Split(forkString, "+")
ok bool
@ -129,6 +129,9 @@ func getVMConfig(forkString string) (baseConfig *params.ChainConfig, eips []int,
if eipNum, err := strconv.Atoi(eip); err != nil {
return nil, nil, fmt.Errorf("syntax error, invalid eip number %v", eipNum)
} else {
if !vm.ValidEip(eipNum) {
return nil, nil, fmt.Errorf("syntax error, invalid eip number %v", eipNum)
}
eips = append(eips, eipNum)
}
}
@ -166,7 +169,7 @@ func (t *StateTest) Run(subtest StateSubtest, vmconfig vm.Config, snapshotter bo
// RunNoVerify runs a specific subtest and returns the statedb and post-state root
func (t *StateTest) RunNoVerify(subtest StateSubtest, vmconfig vm.Config, snapshotter bool) (*snapshot.Tree, *state.StateDB, common.Hash, error) {
config, eips, err := getVMConfig(subtest.Fork)
config, eips, err := GetChainConfig(subtest.Fork)
if err != nil {
return nil, nil, common.Hash{}, UnsupportedForkError{subtest.Fork}
}