Merge pull request #1584 from nspcc-dev/tests/vmcli
Add tests for `vmcli`
This commit is contained in:
Roman Khimov
GitHub
commit
972b0f176d
8 changed files with 544 additions and 35 deletions
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@ -678,7 +678,7 @@ func inspect(ctx *cli.Context) error {
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}
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v := vm.New()
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v.LoadScript(b)
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v.PrintOps()
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v.PrintOps(ctx.App.Writer)
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return nil
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}
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1
go.mod
1
go.mod
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@ -2,6 +2,7 @@ module github.com/nspcc-dev/neo-go
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require (
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github.com/Workiva/go-datastructures v1.0.50
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github.com/abiosoft/readline v0.0.0-20180607040430-155bce2042db
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github.com/alicebob/miniredis v2.5.0+incompatible
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github.com/btcsuite/btcd v0.20.1-beta
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github.com/dgraph-io/badger/v2 v2.0.3
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2
go.sum
2
go.sum
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@ -53,6 +53,7 @@ github.com/cespare/xxhash/v2 v2.1.0 h1:yTUvW7Vhb89inJ+8irsUqiWjh8iT6sQPZiQzI6ReG
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github.com/cespare/xxhash/v2 v2.1.0/go.mod h1:dgIUBU3pDso/gPgZ1osOZ0iQf77oPR28Tjxl5dIMyVM=
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github.com/chzyer/logex v1.1.10 h1:Swpa1K6QvQznwJRcfTfQJmTE72DqScAa40E+fbHEXEE=
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github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
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github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e h1:fY5BOSpyZCqRo5OhCuC+XN+r/bBCmeuuJtjz+bCNIf8=
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github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
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github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1 h1:q763qf9huN11kDQavWsoZXJNW3xEE4JJyHa5Q25/sd8=
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github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
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@ -232,6 +233,7 @@ github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJy
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github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
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github.com/syndtr/goleveldb v0.0.0-20180307113352-169b1b37be73 h1:I2drr5K0tykBofr74ZEGliE/Hf6fNkEbcPyFvsy7wZk=
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github.com/syndtr/goleveldb v0.0.0-20180307113352-169b1b37be73/go.mod h1:Z4AUp2Km+PwemOoO/VB5AOx9XSsIItzFjoJlOSiYmn0=
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github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8 h1:3SVOIvH7Ae1KRYyQWRjXWJEA9sS/c/pjvH++55Gr648=
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github.com/ugorji/go/codec v0.0.0-20181204163529-d75b2dcb6bc8/go.mod h1:VFNgLljTbGfSG7qAOspJ7OScBnGdDN/yBr0sguwnwf0=
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github.com/urfave/cli v1.20.0 h1:fDqGv3UG/4jbVl/QkFwEdddtEDjh/5Ov6X+0B/3bPaw=
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github.com/urfave/cli v1.20.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijbERA=
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@ -12,6 +12,7 @@ import (
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"strings"
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"text/tabwriter"
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"github.com/abiosoft/readline"
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"github.com/nspcc-dev/neo-go/pkg/compiler"
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"github.com/nspcc-dev/neo-go/pkg/encoding/address"
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"github.com/nspcc-dev/neo-go/pkg/encoding/bigint"
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@ -28,6 +29,7 @@ const (
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boolTrue = "true"
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intType = "int"
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stringType = "string"
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exitFunc = "exitFunc"
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)
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var commands = []*ishell.Cmd{
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@ -183,19 +185,36 @@ example:
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},
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}
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// Various errors.
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var (
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ErrMissingParameter = errors.New("missing argument")
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ErrInvalidParameter = errors.New("can't parse argument")
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)
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// VMCLI object for interacting with the VM.
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type VMCLI struct {
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vm *vm.VM
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shell *ishell.Shell
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// printLogo specifies if logo is printed.
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printLogo bool
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}
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// New returns a new VMCLI object.
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func New() *VMCLI {
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return NewWithConfig(true, os.Exit, &readline.Config{
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Prompt: ">>>",
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})
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}
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// NewWithConfig returns new VMCLI instance using provided config.
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func NewWithConfig(printLogo bool, onExit func(int), c *readline.Config) *VMCLI {
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vmcli := VMCLI{
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vm: vm.New(),
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shell: ishell.New(),
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vm: vm.New(),
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shell: ishell.NewWithConfig(c),
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printLogo: printLogo,
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}
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vmcli.shell.Set(vmKey, vmcli.vm)
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vmcli.shell.Set(exitFunc, onExit)
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for _, c := range commands {
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vmcli.shell.AddCmd(c)
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}
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@ -218,7 +237,7 @@ func checkVMIsReady(c *ishell.Context) bool {
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func handleExit(c *ishell.Context) {
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c.Println("Bye!")
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os.Exit(0)
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c.Get(exitFunc).(func(int))(0)
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}
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func handleIP(c *ishell.Context) {
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@ -226,8 +245,13 @@ func handleIP(c *ishell.Context) {
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return
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}
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v := getVMFromContext(c)
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ip, opcode := v.Context().CurrInstr()
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c.Printf("instruction pointer at %d (%s)\n", ip, opcode)
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ctx := v.Context()
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if ctx.NextIP() < ctx.LenInstr() {
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ip, opcode := v.Context().NextInstr()
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c.Printf("instruction pointer at %d (%s)\n", ip, opcode)
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} else {
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c.Println("execution has finished")
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}
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}
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func handleBreak(c *ishell.Context) {
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@ -236,11 +260,12 @@ func handleBreak(c *ishell.Context) {
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}
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v := getVMFromContext(c)
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if len(c.Args) != 1 {
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c.Err(errors.New("missing parameter <ip>"))
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c.Err(fmt.Errorf("%w: <ip>", ErrMissingParameter))
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return
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}
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n, err := strconv.Atoi(c.Args[0])
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if err != nil {
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c.Err(fmt.Errorf("argument conversion error: %w", err))
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c.Err(fmt.Errorf("%w: %v", ErrInvalidParameter, err))
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return
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}
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@ -256,7 +281,7 @@ func handleXStack(c *ishell.Context) {
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func handleLoadNEF(c *ishell.Context) {
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v := getVMFromContext(c)
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if len(c.Args) < 1 {
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c.Err(errors.New("missing parameter <file>"))
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c.Err(fmt.Errorf("%w: <file>", ErrMissingParameter))
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return
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}
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if err := v.LoadFile(c.Args[0]); err != nil {
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@ -270,12 +295,12 @@ func handleLoadNEF(c *ishell.Context) {
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func handleLoadBase64(c *ishell.Context) {
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v := getVMFromContext(c)
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if len(c.Args) < 1 {
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c.Err(errors.New("missing parameter <string>"))
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c.Err(fmt.Errorf("%w: <string>", ErrMissingParameter))
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return
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}
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b, err := base64.StdEncoding.DecodeString(c.Args[0])
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if err != nil {
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c.Err(err)
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c.Err(fmt.Errorf("%w: %v", ErrInvalidParameter, err))
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return
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}
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v.Load(b)
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@ -286,12 +311,12 @@ func handleLoadBase64(c *ishell.Context) {
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func handleLoadHex(c *ishell.Context) {
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v := getVMFromContext(c)
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if len(c.Args) < 1 {
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c.Err(errors.New("missing parameter <string>"))
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c.Err(fmt.Errorf("%w: <string>", ErrMissingParameter))
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return
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}
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b, err := hex.DecodeString(c.Args[0])
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if err != nil {
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c.Err(err)
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c.Err(fmt.Errorf("%w: %v", ErrInvalidParameter, err))
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return
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}
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v.Load(b)
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@ -302,7 +327,7 @@ func handleLoadHex(c *ishell.Context) {
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func handleLoadGo(c *ishell.Context) {
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v := getVMFromContext(c)
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if len(c.Args) < 1 {
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c.Err(errors.New("missing parameter <file>"))
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c.Err(fmt.Errorf("%w: <file>", ErrMissingParameter))
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return
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}
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b, err := compiler.Compile(c.Args[0], nil)
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@ -341,22 +366,25 @@ func runVMWithHandling(c *ishell.Context, v *vm.VM) {
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err := v.Run()
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if err != nil {
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c.Err(err)
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return
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}
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var message string
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switch {
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case v.HasFailed():
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message = "FAILED"
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message = "" // the error will be printed on return
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case v.HasHalted():
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message = v.Stack("estack")
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case v.AtBreakpoint():
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ctx := v.Context()
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i, op := ctx.CurrInstr()
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message = fmt.Sprintf("at breakpoint %d (%s)\n", i, op.String())
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if ctx.NextIP() < ctx.LenInstr() {
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i, op := ctx.NextInstr()
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message = fmt.Sprintf("at breakpoint %d (%s)", i, op)
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} else {
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message = "execution has finished"
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}
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}
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if message != "" {
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c.Printf(message)
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c.Println(message)
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}
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}
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@ -382,7 +410,7 @@ func handleStep(c *ishell.Context) {
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if len(c.Args) > 0 {
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n, err = strconv.Atoi(c.Args[0])
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if err != nil {
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c.Err(fmt.Errorf("argument conversion error: %w", err))
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c.Err(fmt.Errorf("%w: %v", ErrInvalidParameter, err))
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return
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}
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}
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@ -419,8 +447,9 @@ func handleStepType(c *ishell.Context, stepType string) {
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}
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if err != nil {
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c.Err(err)
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} else {
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handleIP(c)
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}
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handleIP(c)
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changePrompt(c, v)
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}
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@ -429,12 +458,14 @@ func handleOps(c *ishell.Context) {
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return
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}
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v := getVMFromContext(c)
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v.PrintOps()
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out := bytes.NewBuffer(nil)
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v.PrintOps(out)
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c.Println(out.String())
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}
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func changePrompt(c ishell.Actions, v *vm.VM) {
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if v.Ready() && v.Context().IP() >= 0 {
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c.SetPrompt(fmt.Sprintf("NEO-GO-VM %d > ", v.Context().IP()))
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if v.Ready() && v.Context().NextIP() >= 0 && v.Context().NextIP() < v.Context().LenInstr() {
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c.SetPrompt(fmt.Sprintf("NEO-GO-VM %d > ", v.Context().NextIP()))
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} else {
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c.SetPrompt("NEO-GO-VM > ")
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}
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@ -442,7 +473,9 @@ func changePrompt(c ishell.Actions, v *vm.VM) {
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// Run waits for user input from Stdin and executes the passed command.
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func (c *VMCLI) Run() error {
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printLogo(c.shell)
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if c.printLogo {
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printLogo(c.shell)
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}
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c.shell.Run()
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return nil
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}
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@ -459,7 +492,7 @@ func handleParse(c *ishell.Context) {
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// Parse converts it's argument to other formats.
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func Parse(args []string) (string, error) {
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if len(args) < 1 {
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return "", errors.New("missing argument")
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return "", ErrMissingParameter
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}
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arg := args[0]
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buf := bytes.NewBuffer(nil)
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@ -530,12 +563,12 @@ func parseArgs(args []string) ([]stackitem.Item, error) {
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} else if value == boolTrue {
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items[i] = stackitem.NewBool(true)
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} else {
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return nil, errors.New("failed to parse bool parameter")
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return nil, fmt.Errorf("%w: invalid bool value", ErrInvalidParameter)
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}
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case intType:
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val, err := strconv.ParseInt(value, 10, 64)
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if err != nil {
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return nil, err
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return nil, fmt.Errorf("%w: invalid integer value", ErrInvalidParameter)
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}
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items[i] = stackitem.NewBigInteger(big.NewInt(val))
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case stringType:
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@ -546,14 +579,15 @@ func parseArgs(args []string) ([]stackitem.Item, error) {
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return items, nil
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}
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func printLogo(c *ishell.Shell) {
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logo := `
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const logo = `
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_ ____________ __________ _ ____ ___
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/ | / / ____/ __ \ / ____/ __ \ | | / / |/ /
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/ |/ / __/ / / / /_____/ / __/ / / /____| | / / /|_/ /
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/ /| / /___/ /_/ /_____/ /_/ / /_/ /_____/ |/ / / / /
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/_/ |_/_____/\____/ \____/\____/ |___/_/ /_/
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`
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func printLogo(c *ishell.Shell) {
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c.Print(logo)
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c.Println()
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c.Println()
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461
pkg/vm/cli/cli_test.go
Normal file
461
pkg/vm/cli/cli_test.go
Normal file
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@ -0,0 +1,461 @@
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package cli
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import (
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"bytes"
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"encoding/base64"
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"encoding/hex"
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"encoding/json"
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"fmt"
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gio "io"
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"io/ioutil"
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"os"
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"path"
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"strings"
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"sync"
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"testing"
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"time"
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"github.com/abiosoft/readline"
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"github.com/nspcc-dev/neo-go/pkg/compiler"
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"github.com/nspcc-dev/neo-go/pkg/config"
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"github.com/nspcc-dev/neo-go/pkg/core/interop/interopnames"
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"github.com/nspcc-dev/neo-go/pkg/io"
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"github.com/nspcc-dev/neo-go/pkg/smartcontract/nef"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neo-go/pkg/vm"
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"github.com/nspcc-dev/neo-go/pkg/vm/emit"
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"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
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"github.com/stretchr/testify/require"
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"go.uber.org/atomic"
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)
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type readCloser struct {
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sync.Mutex
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bytes.Buffer
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}
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func (r *readCloser) Close() error {
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return nil
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}
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func (r *readCloser) Read(p []byte) (int, error) {
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r.Lock()
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defer r.Unlock()
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return r.Buffer.Read(p)
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}
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func (r *readCloser) WriteString(s string) {
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r.Lock()
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defer r.Unlock()
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r.Buffer.WriteString(s)
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}
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type executor struct {
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in *readCloser
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out *bytes.Buffer
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cli *VMCLI
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ch chan struct{}
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exit atomic.Bool
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}
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func newTestVMCLI(t *testing.T) *executor {
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return newTestVMCLIWithLogo(t, false)
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}
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func newTestVMCLIWithLogo(t *testing.T, printLogo bool) *executor {
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e := &executor{
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in: &readCloser{Buffer: *bytes.NewBuffer(nil)},
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out: bytes.NewBuffer(nil),
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ch: make(chan struct{}),
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}
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e.cli = NewWithConfig(printLogo,
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func(int) { e.exit.Store(true) },
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&readline.Config{
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Prompt: "",
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Stdin: e.in,
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Stdout: e.out,
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})
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go func() {
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require.NoError(t, e.cli.Run())
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close(e.ch)
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}()
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return e
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}
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func (e *executor) runProg(t *testing.T, commands ...string) {
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cmd := strings.Join(commands, "\n") + "\n"
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e.in.WriteString(cmd + "\n")
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select {
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case <-e.ch:
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case <-time.After(time.Second):
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require.Fail(t, "command took too long time")
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}
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}
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func (e *executor) checkNextLine(t *testing.T, expected string) {
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line, err := e.out.ReadString('\n')
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require.NoError(t, err)
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require.Regexp(t, expected, line)
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}
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func (e *executor) checkError(t *testing.T, expectedErr error) {
|
||||
line, err := e.out.ReadString('\n')
|
||||
require.NoError(t, err)
|
||||
require.True(t, strings.HasPrefix(line, "Error: "+expectedErr.Error()))
|
||||
}
|
||||
|
||||
func (e *executor) checkStack(t *testing.T, items ...interface{}) {
|
||||
d := json.NewDecoder(e.out)
|
||||
var actual interface{}
|
||||
require.NoError(t, d.Decode(&actual))
|
||||
rawActual, err := json.Marshal(actual)
|
||||
require.NoError(t, err)
|
||||
|
||||
expected := vm.NewStack("")
|
||||
for i := range items {
|
||||
expected.PushVal(items[i])
|
||||
}
|
||||
rawExpected, err := json.Marshal(expected)
|
||||
require.NoError(t, err)
|
||||
require.JSONEq(t, string(rawExpected), string(rawActual))
|
||||
|
||||
// Decoder has it's own buffer, we need to return unread part to the output.
|
||||
outRemain := e.out.String()
|
||||
e.out.Reset()
|
||||
_, err = gio.Copy(e.out, d.Buffered())
|
||||
require.NoError(t, err)
|
||||
e.out.WriteString(outRemain)
|
||||
_, err = e.out.ReadString('\n')
|
||||
require.NoError(t, err)
|
||||
}
|
||||
|
||||
func TestLoad(t *testing.T) {
|
||||
script := []byte{byte(opcode.PUSH3), byte(opcode.PUSH4), byte(opcode.ADD)}
|
||||
t.Run("loadhex", func(t *testing.T) {
|
||||
e := newTestVMCLI(t)
|
||||
e.runProg(t,
|
||||
"loadhex",
|
||||
"loadhex notahex",
|
||||
"loadhex "+hex.EncodeToString(script))
|
||||
|
||||
e.checkError(t, ErrMissingParameter)
|
||||
e.checkError(t, ErrInvalidParameter)
|
||||
e.checkNextLine(t, "READY: loaded 3 instructions")
|
||||
})
|
||||
t.Run("loadbase64", func(t *testing.T) {
|
||||
e := newTestVMCLI(t)
|
||||
e.runProg(t,
|
||||
"loadbase64",
|
||||
"loadbase64 not_a_base64",
|
||||
"loadbase64 "+base64.StdEncoding.EncodeToString(script))
|
||||
|
||||
e.checkError(t, ErrMissingParameter)
|
||||
e.checkError(t, ErrInvalidParameter)
|
||||
e.checkNextLine(t, "READY: loaded 3 instructions")
|
||||
})
|
||||
|
||||
src := `package kek
|
||||
func Main(op string, args []interface{}) int {
|
||||
a := args[0].(int)
|
||||
b := args[1].(int)
|
||||
if op == "add" {
|
||||
return a + b
|
||||
} else {
|
||||
return a * b
|
||||
}
|
||||
}`
|
||||
tmpDir := path.Join(os.TempDir(), "vmcliloadtest")
|
||||
require.NoError(t, os.Mkdir(tmpDir, os.ModePerm))
|
||||
defer os.RemoveAll(tmpDir)
|
||||
|
||||
t.Run("loadgo", func(t *testing.T) {
|
||||
filename := path.Join(tmpDir, "vmtestcontract.go")
|
||||
require.NoError(t, ioutil.WriteFile(filename, []byte(src), os.ModePerm))
|
||||
filenameErr := path.Join(tmpDir, "vmtestcontract_err.go")
|
||||
require.NoError(t, ioutil.WriteFile(filenameErr, []byte(src+"invalid_token"), os.ModePerm))
|
||||
|
||||
e := newTestVMCLI(t)
|
||||
e.runProg(t,
|
||||
"loadgo",
|
||||
"loadgo "+filenameErr,
|
||||
"loadgo "+filename,
|
||||
"run add 3 5")
|
||||
|
||||
e.checkError(t, ErrMissingParameter)
|
||||
e.checkNextLine(t, "Error:")
|
||||
e.checkNextLine(t, "READY: loaded \\d* instructions")
|
||||
e.checkStack(t, 8)
|
||||
})
|
||||
t.Run("loadnef", func(t *testing.T) {
|
||||
config.Version = "0.92.0-test"
|
||||
|
||||
script, err := compiler.Compile("test", strings.NewReader(src))
|
||||
require.NoError(t, err)
|
||||
nefFile, err := nef.NewFile(script)
|
||||
require.NoError(t, err)
|
||||
filename := path.Join(tmpDir, "vmtestcontract.nef")
|
||||
rawNef, err := nefFile.Bytes()
|
||||
require.NoError(t, err)
|
||||
require.NoError(t, ioutil.WriteFile(filename, rawNef, os.ModePerm))
|
||||
filenameErr := path.Join(tmpDir, "vmtestcontract_err.nef")
|
||||
require.NoError(t, ioutil.WriteFile(filenameErr, append([]byte{1, 2, 3, 4}, rawNef...), os.ModePerm))
|
||||
|
||||
e := newTestVMCLI(t)
|
||||
e.runProg(t,
|
||||
"loadnef",
|
||||
"loadnef "+filenameErr,
|
||||
"loadnef "+filename,
|
||||
"run add 3 5")
|
||||
|
||||
e.checkError(t, ErrMissingParameter)
|
||||
e.checkNextLine(t, "Error:")
|
||||
e.checkNextLine(t, "READY: loaded \\d* instructions")
|
||||
e.checkStack(t, 8)
|
||||
})
|
||||
}
|
||||
|
||||
func TestRunWithDifferentArguments(t *testing.T) {
|
||||
src := `package kek
|
||||
func Main(op string, args []interface{}) interface{} {
|
||||
switch op {
|
||||
case "getbool":
|
||||
return args[0].(bool)
|
||||
case "getint":
|
||||
return args[0].(int)
|
||||
case "getstring":
|
||||
return args[0].(string)
|
||||
default:
|
||||
return nil
|
||||
}
|
||||
}`
|
||||
|
||||
filename := path.Join(os.TempDir(), "run_vmtestcontract.go")
|
||||
require.NoError(t, ioutil.WriteFile(filename, []byte(src), os.ModePerm))
|
||||
defer os.Remove(filename)
|
||||
|
||||
e := newTestVMCLI(t)
|
||||
e.runProg(t,
|
||||
"loadgo "+filename, "run getbool true",
|
||||
"loadgo "+filename, "run getbool false",
|
||||
"loadgo "+filename, "run getbool bool:invalid",
|
||||
"loadgo "+filename, "run getint 123",
|
||||
"loadgo "+filename, "run getint int:invalid",
|
||||
"loadgo "+filename, "run getstring validstring",
|
||||
)
|
||||
|
||||
e.checkNextLine(t, "READY: loaded \\d.* instructions")
|
||||
e.checkStack(t, true)
|
||||
|
||||
e.checkNextLine(t, "READY: loaded \\d.* instructions")
|
||||
e.checkStack(t, false)
|
||||
|
||||
e.checkNextLine(t, "READY: loaded \\d.* instructions")
|
||||
e.checkError(t, ErrInvalidParameter)
|
||||
|
||||
e.checkNextLine(t, "READY: loaded \\d.* instructions")
|
||||
e.checkStack(t, 123)
|
||||
|
||||
e.checkNextLine(t, "READY: loaded \\d.* instructions")
|
||||
e.checkError(t, ErrInvalidParameter)
|
||||
|
||||
e.checkNextLine(t, "READY: loaded \\d.* instructions")
|
||||
e.checkStack(t, "validstring")
|
||||
}
|
||||
|
||||
func TestPrintOps(t *testing.T) {
|
||||
w := io.NewBufBinWriter()
|
||||
emit.Opcodes(w.BinWriter, opcode.PUSH1)
|
||||
emit.Syscall(w.BinWriter, interopnames.SystemBinarySerialize)
|
||||
emit.Instruction(w.BinWriter, opcode.PUSHDATA1, []byte{3, 1, 2, 3})
|
||||
script := w.Bytes()
|
||||
e := newTestVMCLI(t)
|
||||
e.runProg(t,
|
||||
"ops",
|
||||
"loadhex "+hex.EncodeToString(script),
|
||||
"ops")
|
||||
|
||||
e.checkNextLine(t, ".*no program loaded")
|
||||
e.checkNextLine(t, fmt.Sprintf("READY: loaded %d instructions", len(script)))
|
||||
e.checkNextLine(t, "INDEX.*OPCODE.*PARAMETER")
|
||||
e.checkNextLine(t, "0.*PUSH1")
|
||||
e.checkNextLine(t, "1.*SYSCALL.*System\\.Binary\\.Serialize")
|
||||
e.checkNextLine(t, "6.*PUSHDATA1.*010203")
|
||||
}
|
||||
|
||||
func TestLoadAbort(t *testing.T) {
|
||||
e := newTestVMCLI(t)
|
||||
e.runProg(t,
|
||||
"loadhex "+hex.EncodeToString([]byte{byte(opcode.PUSH1), byte(opcode.ABORT)}),
|
||||
"run",
|
||||
)
|
||||
|
||||
e.checkNextLine(t, fmt.Sprintf("READY: loaded 2 instructions"))
|
||||
e.checkNextLine(t, "Error:.*at instruction 1.*ABORT")
|
||||
}
|
||||
|
||||
func TestBreakpoint(t *testing.T) {
|
||||
w := io.NewBufBinWriter()
|
||||
emit.Opcodes(w.BinWriter, opcode.PUSH1, opcode.PUSH2, opcode.ADD, opcode.PUSH6, opcode.ADD)
|
||||
e := newTestVMCLI(t)
|
||||
e.runProg(t,
|
||||
"break 3",
|
||||
"cont",
|
||||
"ip",
|
||||
"loadhex "+hex.EncodeToString(w.Bytes()),
|
||||
"break",
|
||||
"break second",
|
||||
"break 2",
|
||||
"break 4",
|
||||
"cont", "estack",
|
||||
"run", "estack",
|
||||
"cont",
|
||||
)
|
||||
|
||||
e.checkNextLine(t, "no program loaded")
|
||||
e.checkNextLine(t, "no program loaded")
|
||||
e.checkNextLine(t, "no program loaded")
|
||||
e.checkNextLine(t, fmt.Sprintf("READY: loaded 5 instructions"))
|
||||
e.checkError(t, ErrMissingParameter)
|
||||
e.checkError(t, ErrInvalidParameter)
|
||||
e.checkNextLine(t, "breakpoint added at instruction 2")
|
||||
e.checkNextLine(t, "breakpoint added at instruction 4")
|
||||
|
||||
e.checkNextLine(t, "at breakpoint 2.*ADD")
|
||||
e.checkStack(t, 1, 2)
|
||||
|
||||
e.checkNextLine(t, "at breakpoint 4.*ADD")
|
||||
e.checkStack(t, 3, 6)
|
||||
|
||||
e.checkStack(t, 9)
|
||||
}
|
||||
|
||||
func TestStep(t *testing.T) {
|
||||
script := hex.EncodeToString([]byte{
|
||||
byte(opcode.PUSH0), byte(opcode.PUSH1), byte(opcode.PUSH2), byte(opcode.PUSH3),
|
||||
})
|
||||
e := newTestVMCLI(t)
|
||||
e.runProg(t,
|
||||
"step",
|
||||
"loadhex "+script,
|
||||
"step invalid",
|
||||
"step",
|
||||
"step 2",
|
||||
"ip", "step", "ip")
|
||||
|
||||
e.checkNextLine(t, "no program loaded")
|
||||
e.checkNextLine(t, "READY: loaded \\d+ instructions")
|
||||
e.checkError(t, ErrInvalidParameter)
|
||||
e.checkNextLine(t, "at breakpoint 1.*PUSH1")
|
||||
e.checkNextLine(t, "at breakpoint 3.*PUSH3")
|
||||
e.checkNextLine(t, "instruction pointer at 3.*PUSH3")
|
||||
e.checkNextLine(t, "execution has finished")
|
||||
e.checkNextLine(t, "execution has finished")
|
||||
}
|
||||
|
||||
func TestErrorOnStepInto(t *testing.T) {
|
||||
script := hex.EncodeToString([]byte{byte(opcode.ADD)})
|
||||
e := newTestVMCLI(t)
|
||||
e.runProg(t,
|
||||
"stepover",
|
||||
"loadhex "+script,
|
||||
"stepover")
|
||||
|
||||
e.checkNextLine(t, "Error:.*no program loaded")
|
||||
e.checkNextLine(t, "READY: loaded 1 instructions")
|
||||
e.checkNextLine(t, "Error:")
|
||||
}
|
||||
|
||||
func TestStepIntoOverOut(t *testing.T) {
|
||||
script := hex.EncodeToString([]byte{
|
||||
byte(opcode.PUSH2), byte(opcode.CALL), 4, byte(opcode.NOP), byte(opcode.RET),
|
||||
byte(opcode.PUSH3), byte(opcode.ADD), byte(opcode.RET),
|
||||
})
|
||||
|
||||
e := newTestVMCLI(t)
|
||||
e.runProg(t,
|
||||
"loadhex "+script,
|
||||
"step", "stepover", "run",
|
||||
"loadhex "+script,
|
||||
"step", "stepinto", "step", "estack", "run",
|
||||
"loadhex "+script,
|
||||
"step", "stepinto", "stepout", "run")
|
||||
|
||||
e.checkNextLine(t, fmt.Sprintf("READY: loaded \\d+ instructions"))
|
||||
e.checkNextLine(t, "at breakpoint 1.*CALL")
|
||||
e.checkNextLine(t, "instruction pointer at.*NOP")
|
||||
e.checkStack(t, 5)
|
||||
|
||||
e.checkNextLine(t, fmt.Sprintf("READY: loaded \\d+ instructions"))
|
||||
e.checkNextLine(t, "at breakpoint.*CALL")
|
||||
e.checkNextLine(t, "instruction pointer at.*PUSH3")
|
||||
e.checkNextLine(t, "at breakpoint.*ADD")
|
||||
e.checkStack(t, 2, 3)
|
||||
e.checkStack(t, 5)
|
||||
|
||||
e.checkNextLine(t, fmt.Sprintf("READY: loaded \\d+ instructions"))
|
||||
e.checkNextLine(t, "at breakpoint 1.*CALL")
|
||||
e.checkNextLine(t, "instruction pointer at.*PUSH3")
|
||||
e.checkNextLine(t, "instruction pointer at.*NOP")
|
||||
e.checkStack(t, 5)
|
||||
}
|
||||
|
||||
// `Parse` output is written via `tabwriter` so if any problems
|
||||
// are encountered in this test, try to replace ' ' with '\\s+'.
|
||||
func TestParse(t *testing.T) {
|
||||
t.Run("Integer", func(t *testing.T) {
|
||||
e := newTestVMCLI(t)
|
||||
e.runProg(t,
|
||||
"parse",
|
||||
"parse 6667")
|
||||
|
||||
e.checkError(t, ErrMissingParameter)
|
||||
e.checkNextLine(t, "Integer to Hex.*0b1a")
|
||||
e.checkNextLine(t, "Integer to Base64.*Cxo=")
|
||||
e.checkNextLine(t, "Hex to String.*\"fg\"")
|
||||
e.checkNextLine(t, "Hex to Integer.*26470")
|
||||
e.checkNextLine(t, "Swap Endianness.*6766")
|
||||
e.checkNextLine(t, "Base64 to String.*\"뮻\"")
|
||||
e.checkNextLine(t, "Base64 to BigInteger.*-4477205")
|
||||
e.checkNextLine(t, "String to Hex.*36363637")
|
||||
e.checkNextLine(t, "String to Base64.*NjY2Nw==")
|
||||
})
|
||||
t.Run("Address", func(t *testing.T) {
|
||||
e := newTestVMCLI(t)
|
||||
e.runProg(t, "parse "+"NbTiM6h8r99kpRtb428XcsUk1TzKed2gTc")
|
||||
e.checkNextLine(t, "Address to BE ScriptHash.*aa8acf859d4fe402b34e673f2156821796a488eb")
|
||||
e.checkNextLine(t, "Address to LE ScriptHash.*eb88a496178256213f674eb302e44f9d85cf8aaa")
|
||||
e.checkNextLine(t, "Address to Base64.*(BE).*qorPhZ1P5AKzTmc/IVaCF5akiOs=")
|
||||
e.checkNextLine(t, "Address to Base64.*(LE).*64iklheCViE/Z06zAuRPnYXPiqo=")
|
||||
e.checkNextLine(t, "String to Hex.*4e6254694d3668387239396b70527462343238586373556b31547a4b656432675463")
|
||||
e.checkNextLine(t, "String to Base64.*TmJUaU02aDhyOTlrcFJ0YjQyOFhjc1VrMVR6S2VkMmdUYw==")
|
||||
})
|
||||
t.Run("Uint160", func(t *testing.T) {
|
||||
u := util.Uint160{66, 67, 68}
|
||||
e := newTestVMCLI(t)
|
||||
e.runProg(t, "parse "+u.StringLE())
|
||||
e.checkNextLine(t, "Integer to Hex.*b6c706")
|
||||
e.checkNextLine(t, "Integer to Base64.*tscG")
|
||||
e.checkNextLine(t, "BE ScriptHash to Address.*NKuyBkoGdZZSLyPbJEetheRhQKhATAzN2A")
|
||||
e.checkNextLine(t, "LE ScriptHash to Address.*NRxLN7apYwKJihzMt4eSSnU9BJ77dp2TNj")
|
||||
e.checkNextLine(t, "Hex to String")
|
||||
e.checkNextLine(t, "Hex to Integer.*378293464438118320046642359484100328446970822656")
|
||||
e.checkNextLine(t, "Swap Endianness.*4243440000000000000000000000000000000000")
|
||||
e.checkNextLine(t, "Base64 to String.*")
|
||||
e.checkNextLine(t, "Base64 to BigInteger.*376115185060690908522683414825349447309891933036899526770189324554358227")
|
||||
e.checkNextLine(t, "String to Hex.*30303030303030303030303030303030303030303030303030303030303030303030343434333432")
|
||||
e.checkNextLine(t, "String to Base64.*MDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDAwMDQ0NDM0Mg==")
|
||||
})
|
||||
}
|
||||
|
||||
func TestPrintLogo(t *testing.T) {
|
||||
e := newTestVMCLIWithLogo(t, true)
|
||||
e.runProg(t)
|
||||
require.True(t, strings.HasPrefix(e.out.String(), logo))
|
||||
require.False(t, e.exit.Load())
|
||||
}
|
||||
|
||||
func TestExit(t *testing.T) {
|
||||
e := newTestVMCLI(t)
|
||||
e.runProg(t, "exit")
|
||||
require.True(t, e.exit.Load())
|
||||
}
|
||||
|
|
@ -185,6 +185,15 @@ func (c *Context) CurrInstr() (int, opcode.Opcode) {
|
|||
return c.ip, opcode.Opcode(c.prog[c.ip])
|
||||
}
|
||||
|
||||
// NextInstr returns the next instruction and opcode.
|
||||
func (c *Context) NextInstr() (int, opcode.Opcode) {
|
||||
op := opcode.RET
|
||||
if c.nextip < len(c.prog) {
|
||||
op = opcode.Opcode(c.prog[c.nextip])
|
||||
}
|
||||
return c.nextip, op
|
||||
}
|
||||
|
||||
// Copy returns an new exact copy of c.
|
||||
func (c *Context) Copy() *Context {
|
||||
ctx := new(Context)
|
||||
|
|
|
|||
10
pkg/vm/vm.go
10
pkg/vm/vm.go
|
|
@ -6,6 +6,7 @@ import (
|
|||
"encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"io/ioutil"
|
||||
"math"
|
||||
"math/big"
|
||||
|
|
@ -151,8 +152,11 @@ func (v *VM) LoadArgs(method []byte, args []stackitem.Item) {
|
|||
}
|
||||
|
||||
// PrintOps prints the opcodes of the current loaded program to stdout.
|
||||
func (v *VM) PrintOps() {
|
||||
w := tabwriter.NewWriter(os.Stdout, 0, 0, 4, ' ', 0)
|
||||
func (v *VM) PrintOps(out io.Writer) {
|
||||
if out == nil {
|
||||
out = os.Stdout
|
||||
}
|
||||
w := tabwriter.NewWriter(out, 0, 0, 4, ' ', 0)
|
||||
fmt.Fprintln(w, "INDEX\tOPCODE\tPARAMETER\t")
|
||||
realctx := v.Context()
|
||||
ctx := realctx.Copy()
|
||||
|
|
@ -237,7 +241,7 @@ func (v *VM) AddBreakPoint(n int) {
|
|||
// instruction pointer.
|
||||
func (v *VM) AddBreakPointRel(n int) {
|
||||
ctx := v.Context()
|
||||
v.AddBreakPoint(ctx.ip + n)
|
||||
v.AddBreakPoint(ctx.nextip + n)
|
||||
}
|
||||
|
||||
// LoadFile loads a program in NEF format from the given path, ready to execute it.
|
||||
|
|
|
|||
|
|
@ -225,8 +225,6 @@ func TestISTYPE(t *testing.T) {
|
|||
func testCONVERT(to stackitem.Type, item, res stackitem.Item) func(t *testing.T) {
|
||||
return func(t *testing.T) {
|
||||
prog := []byte{byte(opcode.CONVERT), byte(to)}
|
||||
v := load(prog)
|
||||
v.PrintOps()
|
||||
runWithArgs(t, prog, res, item)
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue