plugeth/cmd/evm/t8n_test.go

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package main
import (
"encoding/json"
"fmt"
"os"
"reflect"
"strings"
"testing"
"github.com/docker/docker/pkg/reexec"
"github.com/ethereum/go-ethereum/cmd/evm/internal/t8ntool"
"github.com/ethereum/go-ethereum/internal/cmdtest"
)
func TestMain(m *testing.M) {
// Run the app if we've been exec'd as "ethkey-test" in runEthkey.
reexec.Register("evm-test", func() {
if err := app.Run(os.Args); err != nil {
fmt.Fprintln(os.Stderr, err)
os.Exit(1)
}
os.Exit(0)
})
// check if we have been reexec'd
if reexec.Init() {
return
}
os.Exit(m.Run())
}
type testT8n struct {
*cmdtest.TestCmd
}
type t8nInput struct {
inAlloc string
inTxs string
inEnv string
stFork string
stReward string
}
func (args *t8nInput) get(base string) []string {
var out []string
if opt := args.inAlloc; opt != "" {
out = append(out, "--input.alloc")
out = append(out, fmt.Sprintf("%v/%v", base, opt))
}
if opt := args.inTxs; opt != "" {
out = append(out, "--input.txs")
out = append(out, fmt.Sprintf("%v/%v", base, opt))
}
if opt := args.inEnv; opt != "" {
out = append(out, "--input.env")
out = append(out, fmt.Sprintf("%v/%v", base, opt))
}
if opt := args.stFork; opt != "" {
out = append(out, "--state.fork", opt)
}
if opt := args.stReward; opt != "" {
out = append(out, "--state.reward", opt)
}
return out
}
type t8nOutput struct {
alloc bool
result bool
body bool
}
func (args *t8nOutput) get() (out []string) {
if args.body {
out = append(out, "--output.body", "stdout")
} else {
out = append(out, "--output.body", "") // empty means ignore
}
if args.result {
out = append(out, "--output.result", "stdout")
} else {
out = append(out, "--output.result", "")
}
if args.alloc {
out = append(out, "--output.alloc", "stdout")
} else {
out = append(out, "--output.alloc", "")
}
return out
}
func TestT8n(t *testing.T) {
tt := new(testT8n)
tt.TestCmd = cmdtest.NewTestCmd(t, tt)
for i, tc := range []struct {
base string
input t8nInput
output t8nOutput
expExitCode int
expOut string
}{
{ // Test exit (3) on bad config
base: "./testdata/1",
input: t8nInput{
"alloc.json", "txs.json", "env.json", "Frontier+1346", "",
},
output: t8nOutput{alloc: true, result: true},
expExitCode: 3,
},
{
base: "./testdata/1",
input: t8nInput{
"alloc.json", "txs.json", "env.json", "Byzantium", "",
},
output: t8nOutput{alloc: true, result: true},
expOut: "exp.json",
},
{ // blockhash test
base: "./testdata/3",
input: t8nInput{
"alloc.json", "txs.json", "env.json", "Berlin", "",
},
output: t8nOutput{alloc: true, result: true},
expOut: "exp.json",
},
{ // missing blockhash test
base: "./testdata/4",
input: t8nInput{
"alloc.json", "txs.json", "env.json", "Berlin", "",
},
output: t8nOutput{alloc: true, result: true},
expExitCode: 4,
},
{ // Ommer test
base: "./testdata/5",
input: t8nInput{
"alloc.json", "txs.json", "env.json", "Byzantium", "0x80",
},
output: t8nOutput{alloc: true, result: true},
expOut: "exp.json",
},
{ // Sign json transactions
base: "./testdata/13",
input: t8nInput{
"alloc.json", "txs.json", "env.json", "London", "",
},
output: t8nOutput{body: true},
expOut: "exp.json",
},
{ // Already signed transactions
base: "./testdata/13",
input: t8nInput{
"alloc.json", "signed_txs.rlp", "env.json", "London", "",
},
output: t8nOutput{result: true},
expOut: "exp2.json",
},
{ // Difficulty calculation - no uncles
base: "./testdata/14",
input: t8nInput{
"alloc.json", "txs.json", "env.json", "London", "",
},
output: t8nOutput{result: true},
expOut: "exp.json",
},
{ // Difficulty calculation - with uncles
base: "./testdata/14",
input: t8nInput{
"alloc.json", "txs.json", "env.uncles.json", "London", "",
},
output: t8nOutput{result: true},
expOut: "exp2.json",
},
} {
args := []string{"t8n"}
args = append(args, tc.output.get()...)
args = append(args, tc.input.get(tc.base)...)
tt.Run("evm-test", args...)
tt.Logf("args: %v\n", strings.Join(args, " "))
// Compare the expected output, if provided
if tc.expOut != "" {
want, err := os.ReadFile(fmt.Sprintf("%v/%v", tc.base, tc.expOut))
if err != nil {
t.Fatalf("test %d: could not read expected output: %v", i, err)
}
have := tt.Output()
ok, err := cmpJson(have, want)
switch {
case err != nil:
t.Fatalf("test %d, json parsing failed: %v", i, err)
case !ok:
t.Fatalf("test %d: output wrong, have \n%v\nwant\n%v\n", i, string(have), string(want))
}
}
tt.WaitExit()
if have, want := tt.ExitStatus(), tc.expExitCode; have != want {
t.Fatalf("test %d: wrong exit code, have %d, want %d", i, have, want)
}
}
}
type t9nInput struct {
inTxs string
stFork string
}
func (args *t9nInput) get(base string) []string {
var out []string
if opt := args.inTxs; opt != "" {
out = append(out, "--input.txs")
out = append(out, fmt.Sprintf("%v/%v", base, opt))
}
if opt := args.stFork; opt != "" {
out = append(out, "--state.fork", opt)
}
return out
}
func TestT9n(t *testing.T) {
tt := new(testT8n)
tt.TestCmd = cmdtest.NewTestCmd(t, tt)
for i, tc := range []struct {
base string
input t9nInput
expExitCode int
expOut string
}{
{ // London txs on homestead
base: "./testdata/15",
input: t9nInput{
inTxs: "signed_txs.rlp",
stFork: "Homestead",
},
expOut: "exp.json",
},
{ // London txs on London
base: "./testdata/15",
input: t9nInput{
inTxs: "signed_txs.rlp",
stFork: "London",
},
expOut: "exp2.json",
},
{ // An RLP list (a blockheader really)
base: "./testdata/15",
input: t9nInput{
inTxs: "blockheader.rlp",
stFork: "London",
},
expOut: "exp3.json",
},
{ // Transactions with too low gas
base: "./testdata/16",
input: t9nInput{
inTxs: "signed_txs.rlp",
stFork: "London",
},
expOut: "exp.json",
},
{ // Transactions with value exceeding 256 bits
base: "./testdata/17",
input: t9nInput{
inTxs: "signed_txs.rlp",
stFork: "London",
},
expOut: "exp.json",
},
{ // Invalid RLP
base: "./testdata/18",
input: t9nInput{
inTxs: "invalid.rlp",
stFork: "London",
},
expExitCode: t8ntool.ErrorIO,
},
} {
args := []string{"t9n"}
args = append(args, tc.input.get(tc.base)...)
tt.Run("evm-test", args...)
tt.Logf("args:\n go run . %v\n", strings.Join(args, " "))
// Compare the expected output, if provided
if tc.expOut != "" {
want, err := os.ReadFile(fmt.Sprintf("%v/%v", tc.base, tc.expOut))
if err != nil {
t.Fatalf("test %d: could not read expected output: %v", i, err)
}
have := tt.Output()
ok, err := cmpJson(have, want)
switch {
case err != nil:
t.Logf(string(have))
t.Fatalf("test %d, json parsing failed: %v", i, err)
case !ok:
t.Fatalf("test %d: output wrong, have \n%v\nwant\n%v\n", i, string(have), string(want))
}
}
tt.WaitExit()
if have, want := tt.ExitStatus(), tc.expExitCode; have != want {
t.Fatalf("test %d: wrong exit code, have %d, want %d", i, have, want)
}
}
}
// cmpJson compares the JSON in two byte slices.
func cmpJson(a, b []byte) (bool, error) {
var j, j2 interface{}
if err := json.Unmarshal(a, &j); err != nil {
return false, err
}
if err := json.Unmarshal(b, &j2); err != nil {
return false, err
}
return reflect.DeepEqual(j2, j), nil
}