Cấu hình

svm, err := litesvm.New()
if err != nil {
    t.Fatal(err)
}
defer svm.Close()

// Each setter returns an error. The calls below are infallible in practice,
// so the docs use _ = ... for brevity; check the error in production code.
_ = svm.SetSigverify(false)        // skip signature verification (faster)
_ = svm.SetBlockhashCheck(false)   // skip blockhash validation (simpler)
_ = svm.SetSysvars()               // reset Clock, Rent, etc. to defaults
_ = svm.SetBuiltins()              // reload built-in programs
_ = svm.SetTransactionHistory(100) // keep the last 100 transactions

func (s *LiteSVM) SetSigverify(enabled bool) error

if err := svm.SetSigverify(false); err != nil { // accept unsigned / badly-signed txs
    t.Fatal(err)
}
if err := svm.SetSigverify(true); err != nil {  // restore production-like behavior
    t.Fatal(err)
}

func (s *LiteSVM) Sigverify() (bool, error)

func (s *LiteSVM) SetBlockhashCheck(enabled bool) error

if err := svm.SetBlockhashCheck(false); err != nil { // accept any blockhash
    t.Fatal(err)
}

func (s *LiteSVM) SetSysvars() error

func (s *LiteSVM) SetBuiltins() error

func (s *LiteSVM) SetDefaultPrograms() error

func (s *LiteSVM) SetPrecompiles() error

func (s *LiteSVM) WithNativeMints() error

func (s *LiteSVM) SetLamports(lamports uint64) error

if err := svm.SetLamports(1 << 40); err != nil { // ~1.1 trillion lamports (~1,100 SOL)
    t.Fatal(err)
}

func (s *LiteSVM) SetLogBytesLimit(limit int) error

if err := svm.SetLogBytesLimit(10_000); err != nil { // 10 KB cap
    t.Fatal(err)
}
if err := svm.SetLogBytesLimit(-1); err != nil {     // unlimited
    t.Fatal(err)
}

func (s *LiteSVM) SetTransactionHistory(capacity int) error

if err := svm.SetTransactionHistory(100); err != nil { // cap at 100 entries
    t.Fatal(err)
}
if err := svm.SetTransactionHistory(0); err != nil {   // disable dedup entirely
    t.Fatal(err)
}

type ComputeBudget struct {
    // See litesvm-go/litesvm.go for the full field list.
    // usize fields are normalized to uint64; HeapSize stays uint32.
    ComputeUnitLimit uint64
    HeapSize         uint32
    // ...
}

func (s *LiteSVM) ComputeBudget() (ComputeBudget, bool, error)

budget, set, err := svm.ComputeBudget()
if err != nil {
    t.Fatal(err)
}
if !set {
    budget.ComputeUnitLimit = 1_400_000
}
if err := svm.SetComputeBudget(budget); err != nil {
    t.Fatal(err)
}

func (s *LiteSVM) SetComputeBudget(b ComputeBudget) error

// Start with all features off, then activate what you care about.
fs, err := litesvm.NewFeatureSet()
if err != nil {
    t.Fatal(err)
}
defer fs.Close()
if err := fs.Activate(featureID, 0); err != nil {
    t.Fatal(err)
}

// Or start from "everything enabled" and flip specific features off.
fs2, err := litesvm.NewFeatureSetAllEnabled()
if err != nil {
    t.Fatal(err)
}
defer fs2.Close()
if err := fs2.Deactivate(featureID); err != nil {
    t.Fatal(err)
}

if err := svm.SetFeatureSet(fs); err != nil {
    t.Fatal(err)
}