package neotest import ( "testing" "github.com/nspcc-dev/neo-go/pkg/core/transaction" "github.com/nspcc-dev/neo-go/pkg/smartcontract/callflag" "github.com/nspcc-dev/neo-go/pkg/smartcontract/trigger" "github.com/nspcc-dev/neo-go/pkg/util" "github.com/nspcc-dev/neo-go/pkg/vm" "github.com/nspcc-dev/neo-go/pkg/vm/stackitem" "github.com/stretchr/testify/require" ) // ContractInvoker is a client for a specific contract. type ContractInvoker struct { *Executor Hash util.Uint160 Signers []Signer } // NewInvoker creates a new ContractInvoker for the contract with hash h and the specified signers. func (e *Executor) NewInvoker(h util.Uint160, signers ...Signer) *ContractInvoker { return &ContractInvoker{ Executor: e, Hash: h, Signers: signers, } } // CommitteeInvoker creates a new ContractInvoker for the contract with hash h and a committee multisignature signer. func (e *Executor) CommitteeInvoker(h util.Uint160) *ContractInvoker { return &ContractInvoker{ Executor: e, Hash: h, Signers: []Signer{e.Committee}, } } // ValidatorInvoker creates a new ContractInvoker for the contract with hash h and a validators multisignature signer. func (e *Executor) ValidatorInvoker(h util.Uint160) *ContractInvoker { return &ContractInvoker{ Executor: e, Hash: h, Signers: []Signer{e.Validator}, } } // TestInvoke creates test the VM and invokes the method with the args. func (c *ContractInvoker) TestInvoke(t testing.TB, method string, args ...interface{}) (*vm.Stack, error) { tx := c.PrepareInvokeNoSign(t, method, args...) b := c.NewUnsignedBlock(t, tx) ic := c.Chain.GetTestVM(trigger.Application, tx, b) t.Cleanup(ic.Finalize) ic.VM.LoadWithFlags(tx.Script, callflag.All) err := ic.VM.Run() return ic.VM.Estack(), err } // WithSigners creates a new client with the provided signer. func (c *ContractInvoker) WithSigners(signers ...Signer) *ContractInvoker { newC := *c newC.Signers = signers return &newC } // PrepareInvoke creates a new invocation transaction. func (c *ContractInvoker) PrepareInvoke(t testing.TB, method string, args ...interface{}) *transaction.Transaction { return c.Executor.NewTx(t, c.Signers, c.Hash, method, args...) } // PrepareInvokeNoSign creates a new unsigned invocation transaction. func (c *ContractInvoker) PrepareInvokeNoSign(t testing.TB, method string, args ...interface{}) *transaction.Transaction { return c.Executor.NewUnsignedTx(t, c.Hash, method, args...) } // Invoke invokes the method with the args, persists the transaction and checks the result. // Returns transaction hash. func (c *ContractInvoker) Invoke(t testing.TB, result interface{}, method string, args ...interface{}) util.Uint256 { tx := c.PrepareInvoke(t, method, args...) c.AddNewBlock(t, tx) c.CheckHalt(t, tx.Hash(), stackitem.Make(result)) return tx.Hash() } // InvokeAndCheck invokes the method with the args, persists the transaction and checks the result // using the provided function. It returns the transaction hash. func (c *ContractInvoker) InvokeAndCheck(t testing.TB, checkResult func(t testing.TB, stack []stackitem.Item), method string, args ...interface{}) util.Uint256 { tx := c.PrepareInvoke(t, method, args...) c.AddNewBlock(t, tx) aer, err := c.Chain.GetAppExecResults(tx.Hash(), trigger.Application) require.NoError(t, err) require.Equal(t, vm.HaltState, aer[0].VMState, aer[0].FaultException) if checkResult != nil { checkResult(t, aer[0].Stack) } return tx.Hash() } // InvokeWithFeeFail is like InvokeFail but sets the custom system fee for the transaction. func (c *ContractInvoker) InvokeWithFeeFail(t testing.TB, message string, sysFee int64, method string, args ...interface{}) util.Uint256 { tx := c.PrepareInvokeNoSign(t, method, args...) c.Executor.SignTx(t, tx, sysFee, c.Signers...) c.AddNewBlock(t, tx) c.CheckFault(t, tx.Hash(), message) return tx.Hash() } // InvokeFail invokes the method with the args, persists the transaction and checks the error message. // It returns the transaction hash. func (c *ContractInvoker) InvokeFail(t testing.TB, message string, method string, args ...interface{}) { tx := c.PrepareInvoke(t, method, args...) c.AddNewBlock(t, tx) c.CheckFault(t, tx.Hash(), message) }