Method Run

tests/state_test_util.go:124–155

Run executes a specific subtest.

(subtest StateSubtest, vmconfig vm.Config)

// Run executes a specific subtest.
func (t *StateTest) Run(subtest StateSubtest, vmconfig vm.Config) (*state.StateDB, error) {
	config, ok := Forks[subtest.Fork]
	if !ok {
		return nil, UnsupportedForkError{subtest.Fork}
	}
	block := t.genesis(config).ToBlock(nil)
	statedb := MakePreState(database.NewMemDatabase(), t.json.Pre)

	post := t.json.Post[subtest.Fork][subtest.Index]
	msg, err := t.json.Tx.toMessage(post)
	if err != nil {
		return nil, err
	}
	context := core.NewEVMContext(msg, block.Header(), nil, &t.json.Env.Coinbase)
	context.GetHash = vmTestBlockHash
	evm := vm.NewEVM(context, statedb, config, vmconfig)

	gaspool := new(core.GasPool)
	gaspool.AddGas(block.GasLimit())
	snapshot := statedb.Snapshot()
	if _, _, _, err := core.ApplyMessage(evm, msg, gaspool); err != nil {
		statedb.RevertToSnapshot(snapshot)
	}
	if logs := rlpHash(statedb.Logs()); logs != common.Hash(post.Logs) {
		return statedb, fmt.Errorf("post state logs hash mismatch: got %x, want %x", logs, post.Logs)
	}
	root, _ := statedb.Commit(true)
	if root != common.Hash(post.Root) {
		return statedb, fmt.Errorf("post state root mismatch: got %x, want %x", root, post.Root)
	}
	return statedb, nil
}

func (t *StateTest) gasLimit(subtest StateSubtest) uint64 {
	return t.json.Tx.GasLimit[t.json.Post[subtest.Fork][subtest.Index].Indexes.Gas]