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Merge pull request #3020 from nspcc-dev/loadnef-enh-2

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cli: properly load specified method for `run` VM CLI command
This commit is contained in:
Roman Khimov 2023-05-19 16:39:41 +03:00 committed by GitHub
commit aca12b58c0
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GPG key ID: 4AEE18F83AFDEB23
5 changed files with 347 additions and 147 deletions
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115
cli/vm/cli.go
View file

@ -28,12 +28,14 @@ import (
"github.com/nspcc-dev/neo-go/pkg/core/interop"
"github.com/nspcc-dev/neo-go/pkg/core/interop/runtime"
"github.com/nspcc-dev/neo-go/pkg/core/native"
"github.com/nspcc-dev/neo-go/pkg/core/state"
"github.com/nspcc-dev/neo-go/pkg/core/storage"
"github.com/nspcc-dev/neo-go/pkg/core/storage/dbconfig"
"github.com/nspcc-dev/neo-go/pkg/core/transaction"
"github.com/nspcc-dev/neo-go/pkg/crypto/keys"
"github.com/nspcc-dev/neo-go/pkg/encoding/address"
"github.com/nspcc-dev/neo-go/pkg/encoding/bigint"
"github.com/nspcc-dev/neo-go/pkg/smartcontract"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/manifest"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/nef"
@ -51,7 +53,7 @@ const (
chainKey = "chain"
chainCfgKey = "chainCfg"
icKey = "ic"
manifestKey = "manifest"
contractStateKey = "contractState"
exitFuncKey = "exitFunc"
readlineInstanceKey = "readlineKey"
printLogoKey = "printLogoKey"
@ -64,6 +66,7 @@ const (
gasFlagFullName = "gas"
backwardsFlagFullName = "backwards"
diffFlagFullName = "diff"
hashFlagFullName = "hash"
)
var (
@ -76,6 +79,10 @@ var (
Name: gasFlagFullName,
Usage: "GAS limit for this execution (integer number, satoshi).",
}
hashFlag = cli.StringFlag{
Name: hashFlagFullName,
Usage: "Smart-contract hash in LE form or address",
}
)
var commands = []cli.Command{
@ -150,9 +157,9 @@ Example:
},
{
Name: "loadnef",
Usage: "Load a NEF-consistent script into the VM optionally attaching to it provided signers with scopes",
UsageText: `loadnef [--historic <height>] [--gas <int>] <file> [<manifest>] [-- <signer-with-scope>, ...]`,
Flags: []cli.Flag{historicFlag, gasFlag},
Usage: "Load a NEF (possibly with a contract hash) into the VM optionally using provided scoped signers in the context",
UsageText: `loadnef [--historic <height>] [--gas <int>] [--hash <hash-or-address>] <file> [<manifest>] [-- <signer-with-scope>, ...]`,
Flags: []cli.Flag{historicFlag, gasFlag, hashFlag},
Description: `<file> parameter is mandatory, <manifest> parameter (if omitted) will
be guessed from the <file> parameter by replacing '.nef' suffix with '.manifest.json'
suffix.
@ -191,9 +198,9 @@ Example:
},
{
Name: "loadgo",
Usage: "Compile and load a Go file with the manifest into the VM optionally attaching to it provided signers with scopes",
UsageText: `loadgo [--historic <height>] [--gas <int>] <file> [-- <signer-with-scope>, ...]`,
Flags: []cli.Flag{historicFlag, gasFlag},
Usage: "Compile and load a Go file with the manifest into the VM optionally attaching to it provided signers with scopes and setting provided hash",
UsageText: `loadgo [--historic <height>] [--gas <int>] [--hash <hash-or-address>] <file> [-- <signer-with-scope>, ...]`,
Flags: []cli.Flag{historicFlag, gasFlag, hashFlag},
Description: `<file> is mandatory parameter.
` + cmdargs.SignersParsingDoc + `
@ -489,7 +496,7 @@ func NewWithConfig(printLogotype bool, onExit func(int), c *readline.Config, cfg
chainKey: chain,
chainCfgKey: cfg,
icKey: ic,
manifestKey: new(manifest.Manifest),
contractStateKey: new(state.ContractBase),
exitFuncKey: exitF,
readlineInstanceKey: l,
printLogoKey: printLogotype,
@ -522,8 +529,8 @@ func getInteropContextFromContext(app *cli.App) *interop.Context {
return app.Metadata[icKey].(*interop.Context)
}
func getManifestFromContext(app *cli.App) *manifest.Manifest {
return app.Metadata[manifestKey].(*manifest.Manifest)
func getContractStateFromContext(app *cli.App) *state.ContractBase {
return app.Metadata[contractStateKey].(*state.ContractBase)
}
func getPrintLogoFromContext(app *cli.App) bool {
@ -534,8 +541,8 @@ func setInteropContextInContext(app *cli.App, ic *interop.Context) {
app.Metadata[icKey] = ic
}
func setManifestInContext(app *cli.App, m *manifest.Manifest) {
app.Metadata[manifestKey] = m
func setContractStateInContext(app *cli.App, cs *state.ContractBase) {
app.Metadata[contractStateKey] = cs
}
func checkVMIsReady(app *cli.App) bool {
@ -671,6 +678,17 @@ func prepareVM(c *cli.Context, tx *transaction.Transaction) error {
return nil
}
func getHashFlag(c *cli.Context) (util.Uint160, error) {
if !c.IsSet(hashFlagFullName) {
return util.Uint160{}, nil
}
h, err := flags.ParseAddress(c.String(hashFlagFullName))
if err != nil {
return util.Uint160{}, fmt.Errorf("failed to parse contract hash: %w", err)
}
return h, nil
}
func handleLoadNEF(c *cli.Context) error {
args := c.Args()
if len(args) < 1 {
@ -725,9 +743,19 @@ func handleLoadNEF(c *cli.Context) error {
if err != nil {
return err
}
h, err := getHashFlag(c)
if err != nil {
return err
}
cs := &state.ContractBase{
Hash: h,
NEF: nef,
Manifest: *m,
}
setContractStateInContext(c.App, cs)
v := getVMFromContext(c.App)
fmt.Fprintf(c.App.Writer, "READY: loaded %d instructions\n", v.Context().LenInstr())
setManifestInContext(c.App, m)
changePrompt(c.App)
return nil
}
@ -811,7 +839,7 @@ func handleLoadGo(c *cli.Context) error {
}
name := strings.TrimSuffix(args[0], ".go")
b, di, err := compiler.CompileWithOptions(args[0], nil, &compiler.Options{Name: name})
ne, di, err := compiler.CompileWithOptions(args[0], nil, &compiler.Options{Name: name})
if err != nil {
return fmt.Errorf("failed to compile: %w", err)
}
@ -835,12 +863,22 @@ func handleLoadGo(c *cli.Context) error {
}
}
err = prepareVM(c, createFakeTransaction(b.Script, signers))
err = prepareVM(c, createFakeTransaction(ne.Script, signers))
if err != nil {
return err
}
h, err := getHashFlag(c)
if err != nil {
return err
}
cs := &state.ContractBase{
Hash: h,
NEF: *ne,
Manifest: *m,
}
setContractStateInContext(c.App, cs)
v := getVMFromContext(c.App)
setManifestInContext(c.App, m)
fmt.Fprintf(c.App.Writer, "READY: loaded %d instructions\n", v.Context().LenInstr())
changePrompt(c.App)
return nil
@ -937,7 +975,7 @@ func handleLoadDeployed(c *cli.Context) error {
ic.VM.GasLimit = gasLimit
ic.VM.LoadScriptWithHash(cs.NEF.Script, cs.Hash, callflag.All)
fmt.Fprintf(c.App.Writer, "READY: loaded %d instructions\n", ic.VM.Context().LenInstr())
setManifestInContext(c.App, &cs.Manifest)
setContractStateInContext(c.App, &cs.ContractBase)
changePrompt(c.App)
return nil
}
@ -992,9 +1030,9 @@ func resetInteropContext(app *cli.App, tx *transaction.Transaction, height ...ui
return nil
}
// resetManifest removes manifest from app context.
func resetManifest(app *cli.App) {
setManifestInContext(app, nil)
// resetContractState removes loaded contract state from app context.
func resetContractState(app *cli.App) {
setContractStateInContext(app, nil)
}
// resetState resets state of the app (clear interop context and manifest) so that it's ready
@ -1004,7 +1042,7 @@ func resetState(app *cli.App, tx *transaction.Transaction, height ...uint32) err
if err != nil {
return err
}
resetManifest(app)
resetContractState(app)
return nil
}
@ -1023,7 +1061,7 @@ func getManifestFromFile(name string) (*manifest.Manifest, error) {
func handleRun(c *cli.Context) error {
v := getVMFromContext(c.App)
m := getManifestFromContext(c.App)
cs := getContractStateFromContext(c.App)
args := c.Args()
if len(args) != 0 {
var (
@ -1031,6 +1069,7 @@ func handleRun(c *cli.Context) error {
offset int
err error
runCurrent = args[0] != "_"
hasRet bool
)
_, scParams, err := cmdargs.ParseParams(args[1:], true)
@ -1045,27 +1084,35 @@ func handleRun(c *cli.Context) error {
}
}
if runCurrent {
if m == nil {
return fmt.Errorf("manifest is not loaded; either use 'run' command to run loaded script from the start or use 'loadgo' and 'loadnef' commands to provide manifest")
if cs == nil {
return fmt.Errorf("manifest is not loaded; either use 'run' command to run loaded script from the start or use 'loadgo', 'loadnef' or 'loaddeployed' commands to provide manifest")
}
md := m.ABI.GetMethod(args[0], len(params))
md := cs.Manifest.ABI.GetMethod(args[0], len(params))
if md == nil {
return fmt.Errorf("%w: method not found", ErrInvalidParameter)
}
hasRet = md.ReturnType != smartcontract.VoidType
offset = md.Offset
var initOff = -1
if initMD := cs.Manifest.ABI.GetMethod(manifest.MethodInit, 0); initMD != nil {
initOff = initMD.Offset
}
// Clear context loaded by 'loadgo', 'loadnef' or 'loaddeployed' to properly handle LoadNEFMethod.
// At the same time, preserve previously set gas limit and the set of breakpoints.
ic := getInteropContextFromContext(c.App)
gasLimit := v.GasLimit
breaks := v.Context().BreakPoints() // We ensure that there's a context loaded.
ic.ReuseVM(v)
v.GasLimit = gasLimit
v.LoadNEFMethod(&cs.NEF, util.Uint160{}, cs.Hash, callflag.All, hasRet, offset, initOff, nil)
for _, bp := range breaks {
v.AddBreakPoint(bp)
}
}
for i := len(params) - 1; i >= 0; i-- {
v.Estack().PushVal(params[i])
}
if runCurrent {
if !v.Ready() {
return errors.New("no program loaded")
}
v.Context().Jump(offset)
if initMD := m.ABI.GetMethod(manifest.MethodInit, 0); initMD != nil {
v.Call(initMD.Offset)
}
}
}
runVMWithHandling(c)
changePrompt(c.App)

245
cli/vm/cli_test.go
View file

@ -281,6 +281,97 @@ func (e *executor) checkSlot(t *testing.T, items ...any) {
require.NoError(t, err)
}
func TestRun_WithNewVMContextAndBreakpoints(t *testing.T) {
t.Run("contract without init", func(t *testing.T) {
src := `package kek
func Main(a, b int) int {
var c = a + b
return c + 5
}`
tmpDir := t.TempDir()
filename := prepareLoadgoSrc(t, tmpDir, src)
e := newTestVMCLI(t)
e.runProgWithTimeout(t, 10*time.Second,
"loadgo "+filename,
"break 8",
"run main 3 5",
"run",
)
e.checkNextLine(t, "READY: loaded \\d* instructions")
e.checkNextLine(t, "breakpoint added at instruction 8")
e.checkNextLine(t, "at breakpoint 8 (PUSH5)*")
e.checkStack(t, 13)
})
t.Run("contract with init", func(t *testing.T) {
src := `package kek
var I = 5
func Main(a, b int) int {
var c = a + b
return c + I
}`
tmpDir := t.TempDir()
filename := prepareLoadgoSrc(t, tmpDir, src)
e := newTestVMCLI(t)
e.runProgWithTimeout(t, 10*time.Second,
"loadgo "+filename,
"break 10",
"run main 3 5",
"run",
)
e.checkNextLine(t, "READY: loaded \\d* instructions")
e.checkNextLine(t, "breakpoint added at instruction 10")
e.checkNextLine(t, "at breakpoint 10 (ADD)*")
e.checkStack(t, 13)
})
}
// prepareLoadgoSrc prepares provided SC source file for loading into VM via `loadgo` command.
func prepareLoadgoSrc(t *testing.T, tmpDir, src string) string {
filename := filepath.Join(tmpDir, "vmtestcontract.go")
require.NoError(t, os.WriteFile(filename, []byte(src), os.ModePerm))
filename = "'" + filename + "'"
wd, err := os.Getwd()
require.NoError(t, err)
goMod := []byte(`module test.example/kek
require (
github.com/nspcc-dev/neo-go/pkg/interop v0.0.0
)
replace github.com/nspcc-dev/neo-go/pkg/interop => ` + filepath.Join(wd, "../../pkg/interop") + `
go 1.18`)
require.NoError(t, os.WriteFile(filepath.Join(tmpDir, "go.mod"), goMod, os.ModePerm))
return filename
}
// prepareLoadnefSrc compiles provided SC source and prepares NEF and manifest for loading into VM
// via `loadnef` command. It returns the name of manifest and NEF files ready to be used in CLI
// commands.
func prepareLoadnefSrc(t *testing.T, tmpDir, src string) (string, string) {
config.Version = "0.92.0-test"
nefFile, di, err := compiler.CompileWithOptions("test.go", strings.NewReader(src), nil)
require.NoError(t, err)
filename := filepath.Join(tmpDir, "vmtestcontract.nef")
rawNef, err := nefFile.Bytes()
require.NoError(t, err)
require.NoError(t, os.WriteFile(filename, rawNef, os.ModePerm))
m, err := di.ConvertToManifest(&compiler.Options{})
require.NoError(t, err)
manifestFile := filepath.Join(tmpDir, "vmtestcontract.manifest.json")
rawManifest, err := json.Marshal(m)
require.NoError(t, err)
require.NoError(t, os.WriteFile(manifestFile, rawManifest, os.ModePerm))
manifestFile = "'" + manifestFile + "'"
filename = "'" + filename + "'"
return manifestFile, filename
}
func TestLoad(t *testing.T) {
script := []byte{byte(opcode.PUSH3), byte(opcode.PUSH4), byte(opcode.ADD)}
@ -378,19 +469,13 @@ func TestLoad(t *testing.T) {
return a * b
}
}`
t.Run("loadgo", func(t *testing.T) {
tmpDir := t.TempDir()
checkLoadgo := func(t *testing.T, tName, cName, cErrName string) {
t.Run("loadgo "+tName, func(t *testing.T) {
filename := filepath.Join(tmpDir, cName)
require.NoError(t, os.WriteFile(filename, []byte(src), os.ModePerm))
filename = "'" + filename + "'"
checkLoadgo := func(t *testing.T, cName, cErrName string) {
filename := prepareLoadgoSrc(t, tmpDir, src)
filenameErr := filepath.Join(tmpDir, cErrName)
require.NoError(t, os.WriteFile(filenameErr, []byte(src+"invalid_token"), os.ModePerm))
filenameErr = "'" + filenameErr + "'"
goMod := []byte(`module test.example/vmcli
go 1.18`)
require.NoError(t, os.WriteFile(filepath.Join(tmpDir, "go.mod"), goMod, os.ModePerm))
e := newTestVMCLI(t)
e.runProgWithTimeout(t, 10*time.Second,
@ -403,28 +488,16 @@ go 1.18`)
e.checkNextLine(t, "Error:")
e.checkNextLine(t, "READY: loaded \\d* instructions")
e.checkStack(t, 8)
}
t.Run("simple", func(t *testing.T) {
checkLoadgo(t, "vmtestcontract.go", "vmtestcontract_err.go")
})
t.Run("utf-8 with spaces", func(t *testing.T) {
checkLoadgo(t, "тестовый контракт.go", "тестовый контракт с ошибкой.go")
})
}
checkLoadgo(t, "simple", "vmtestcontract.go", "vmtestcontract_err.go")
checkLoadgo(t, "utf-8 with spaces", "тестовый контракт.go", "тестовый контракт с ошибкой.go")
prepareLoadgoSrc := func(t *testing.T, srcAllowNotify string) string {
filename := filepath.Join(tmpDir, "vmtestcontract.go")
require.NoError(t, os.WriteFile(filename, []byte(srcAllowNotify), os.ModePerm))
filename = "'" + filename + "'"
wd, err := os.Getwd()
require.NoError(t, err)
goMod := []byte(`module test.example/kek
require (
github.com/nspcc-dev/neo-go/pkg/interop v0.0.0
)
replace github.com/nspcc-dev/neo-go/pkg/interop => ` + filepath.Join(wd, "../../pkg/interop") + `
go 1.18`)
require.NoError(t, os.WriteFile(filepath.Join(tmpDir, "go.mod"), goMod, os.ModePerm))
return filename
}
t.Run("loadgo, check calling flags", func(t *testing.T) {
t.Run("check calling flags", func(t *testing.T) {
srcAllowNotify := `package kek
import "github.com/nspcc-dev/neo-go/pkg/interop/runtime"
func Main() int {
@ -432,7 +505,7 @@ go 1.18`)
return 1
}
`
filename := prepareLoadgoSrc(t, srcAllowNotify)
filename := prepareLoadgoSrc(t, tmpDir, srcAllowNotify)
e := newTestVMCLI(t)
e.runProg(t,
@ -441,7 +514,7 @@ go 1.18`)
e.checkNextLine(t, "READY: loaded \\d* instructions")
e.checkStack(t, 1)
})
t.Run("loadgo, check signers", func(t *testing.T) {
t.Run("check signers", func(t *testing.T) {
srcCheckWitness := `package kek
import (
"github.com/nspcc-dev/neo-go/pkg/interop/runtime"
@ -452,7 +525,7 @@ go 1.18`)
return runtime.CheckWitness(owner)
}
`
filename := prepareLoadgoSrc(t, srcCheckWitness)
filename := prepareLoadgoSrc(t, tmpDir, srcCheckWitness)
t.Run("invalid", func(t *testing.T) {
e := newTestVMCLI(t)
e.runProg(t,
@ -497,45 +570,33 @@ go 1.18`)
e.checkStack(t, false)
})
})
})
t.Run("loadnef", func(t *testing.T) {
config.Version = "0.92.0-test"
tmpDir := t.TempDir()
nefFile, di, err := compiler.CompileWithOptions("test.go", strings.NewReader(src), nil)
require.NoError(t, err)
filename := filepath.Join(tmpDir, "vmtestcontract.nef")
rawNef, err := nefFile.Bytes()
require.NoError(t, err)
require.NoError(t, os.WriteFile(filename, rawNef, os.ModePerm))
m, err := di.ConvertToManifest(&compiler.Options{})
require.NoError(t, err)
manifestFile := filepath.Join(tmpDir, "vmtestcontract.manifest.json")
rawManifest, err := json.Marshal(m)
require.NoError(t, err)
require.NoError(t, os.WriteFile(manifestFile, rawManifest, os.ModePerm))
manifestFile, nefFile := prepareLoadnefSrc(t, tmpDir, src)
filenameErr := filepath.Join(tmpDir, "vmtestcontract_err.nef")
require.NoError(t, os.WriteFile(filenameErr, append([]byte{1, 2, 3, 4}, rawNef...), os.ModePerm))
require.NoError(t, os.WriteFile(filenameErr, []byte{1, 2, 3, 4}, os.ModePerm))
notExists := filepath.Join(tmpDir, "notexists.json")
manifestFile = "'" + manifestFile + "'"
filename = "'" + filename + "'"
filenameErr = "'" + filenameErr + "'"
e := newTestVMCLI(t)
e.runProg(t,
"loadnef",
"loadnef "+filenameErr+" "+manifestFile,
"loadnef "+filename+" "+notExists,
"loadnef "+filename+" "+filename,
"loadnef "+filename+" "+manifestFile,
"loadnef "+nefFile+" "+notExists,
"loadnef "+nefFile+" "+nefFile,
"loadnef "+nefFile+" "+manifestFile,
"run main add 3 5",
"loadnef "+filename,
"loadnef "+nefFile,
"run main add 3 5",
"loadnef "+filename+" "+cmdargs.CosignersSeparator,
"loadnef "+filename+" "+manifestFile+" "+cmdargs.CosignersSeparator,
"loadnef "+filename+" "+manifestFile+" "+"not-a-separator",
"loadnef "+filename+" "+cmdargs.CosignersSeparator+" "+util.Uint160{1, 2, 3}.StringLE(),
"loadnef "+nefFile+" "+cmdargs.CosignersSeparator,
"loadnef "+nefFile+" "+manifestFile+" "+cmdargs.CosignersSeparator,
"loadnef "+nefFile+" "+manifestFile+" "+"not-a-separator",
"loadnef "+nefFile+" "+cmdargs.CosignersSeparator+" "+util.Uint160{1, 2, 3}.StringLE(),
"run main add 3 5",
"loadnef "+filename+" "+manifestFile+" "+cmdargs.CosignersSeparator+" "+util.Uint160{1, 2, 3}.StringLE(),
"loadnef "+nefFile+" "+manifestFile+" "+cmdargs.CosignersSeparator+" "+util.Uint160{1, 2, 3}.StringLE(),
"run main add 3 5",
)
@ -557,6 +618,72 @@ go 1.18`)
})
}
func TestLoad_RunWithCALLT(t *testing.T) {
// Our smart compiler will generate CALLT instruction for the following StdLib call:
src := `package kek
import "github.com/nspcc-dev/neo-go/pkg/interop/native/std"
func Main() int {
return std.Atoi("123", 10)
}`
t.Run("loadgo", func(t *testing.T) {
tmp := t.TempDir()
filename := prepareLoadgoSrc(t, tmp, src)
e := newTestVMCLI(t)
e.runProg(t,
"loadgo "+filename,
"run main",
)
e.checkNextLine(t, "READY: loaded \\d* instructions")
e.checkStack(t, 123)
})
t.Run("loadnef", func(t *testing.T) {
tmpDir := t.TempDir()
manifestFile, nefFile := prepareLoadnefSrc(t, tmpDir, src)
e := newTestVMCLI(t)
e.runProg(t,
"loadnef "+nefFile+" "+manifestFile,
"run main",
)
e.checkNextLine(t, "READY: loaded \\d* instructions")
e.checkStack(t, 123)
})
t.Run("loaddeployed", func(t *testing.T) {
// We'll use `Runtime example` example contract which has a call to native Management
// inside performed via CALLT instruction (`destroy` method).
e := newTestVMClIWithState(t)
var (
cH util.Uint160
cName = "Runtime example"
bc = e.cli.chain
)
for i := int32(1); ; i++ {
h, err := bc.GetContractScriptHash(i)
if err != nil {
break
}
cs := bc.GetContractState(h)
if cs == nil {
break
}
if cs.Manifest.Name == cName {
cH = cs.Hash
break
}
}
require.NotEmpty(t, cH, fmt.Sprintf("failed to locate `%s` example contract with CALLT usage in the simple chain", cName))
e.runProg(t,
"loaddeployed "+cH.StringLE()+" -- NbrUYaZgyhSkNoRo9ugRyEMdUZxrhkNaWB:Global", // the contract's owner got from the contract's code.
"run destroy",
)
e.checkNextLine(t, "READY: loaded \\d* instructions")
e.checkStack(t) // Nothing on stack, successful execution.
})
}
func TestRunWithDifferentArguments(t *testing.T) {
src := `package kek
var a = 1

4
examples/runtime/runtime.go
View file

@ -65,7 +65,7 @@ func Verify() bool {
// Destroy destroys the contract, only the owner can do that.
func Destroy() {
if !Verify() {
if !CheckWitness() {
panic("only owner can destroy")
}
management.Destroy()
@ -74,7 +74,7 @@ func Destroy() {
// Update updates the contract, only the owner can do that. _deploy will be called
// after update.
func Update(nef, manifest []byte) {
if !Verify() {
if !CheckWitness() {
panic("only owner can update")
}
management.Update(nef, manifest)

7
pkg/vm/context.go
View file

@ -350,3 +350,10 @@ func DynamicOnUnload(v *VM, ctx *Context, commit bool) error {
}
return nil
}
// BreakPoints returns the current set of Context's breakpoints.
func (c *Context) BreakPoints() []int {
res := make([]int, len(c.sc.breakPoints))
copy(res, c.sc.breakPoints)
return res
}

19
pkg/vm/debug_test.go
View file

@ -4,6 +4,8 @@ import (
"math/big"
"testing"
"github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag"
"github.com/nspcc-dev/neo-go/pkg/util"
"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
"github.com/stretchr/testify/require"
)
@ -40,3 +42,20 @@ func TestVM_Debug(t *testing.T) {
require.Equal(t, big.NewInt(5), v.estack.Top().Value())
})
}
func TestContext_BreakPoints(t *testing.T) {
prog := makeProgram(opcode.CALL, 3, opcode.RET,
opcode.PUSH2, opcode.PUSH3, opcode.ADD, opcode.RET)
v := load(prog)
v.AddBreakPoint(3)
v.AddBreakPoint(5)
require.Equal(t, []int{3, 5}, v.Context().BreakPoints())
// Preserve the set of breakpoints on Call.
v.Call(3)
require.Equal(t, []int{3, 5}, v.Context().BreakPoints())
// New context -> clean breakpoints.
v.loadScriptWithCallingHash(prog, nil, util.Uint160{}, util.Uint160{}, callflag.All, 1, 3, nil)
require.Equal(t, []int{}, v.Context().BreakPoints())
}