Documentation ¶
Overview ¶
Package network implements and exposes a fully operational in-process Tendermint test network that consists of at least one or potentially many validators. This test network can be used primarily for integration tests or unit test suites.
The test network utilizes SimApp as the ABCI application and uses all the modules defined in the Cosmos SDK. An in-process test network can be configured with any number of validators as well as account funds and even custom genesis state.
when creating a test network, a series of Validator objects are returned. Each Validator object has useful information such as their address and public key. A Validator will also provide its RPC, P2P, and API addresses that can be useful for integration testing. In addition, a Tendermint local RPC client is also provided which can be handy for making direct RPC calls to Tendermint.
Note, due to limitations in concurrency and the design of the RPC layer in Tendermint, only the first Validator object will have an RPC and API client exposed. Due to this exact same limitation, only a single test network can exist at a time. A caller must be certain it calls Cleanup after it no longer needs the network.
A typical testing flow might look like the following:
type IntegrationTestSuite struct { suite.Suite cfg testutil.Config network *testutil.Network } func (s *IntegrationTestSuite) SetupSuite() { s.T().Log("setting up integration test suite") cfg := testutil.DefaultConfig() cfg.NumValidators = 1 s.cfg = cfg s.network = testutil.New(s.T(), cfg) _, err := s.network.WaitForHeight(1) s.Require().NoError(err) } func (s *IntegrationTestSuite) TearDownSuite() { s.T().Log("tearing down integration test suite") // This is important and must be called to ensure other tests can create // a network! s.network.Cleanup() } func (s *IntegrationTestSuite) TestQueryBalancesRequestHandlerFn() { val := s.network.Validators[0] baseURL := val.APIAddress // Use baseURL to make API HTTP requests or use val.RPCClient to make direct // Tendermint RPC calls. // ... } func TestIntegrationTestSuite(t *testing.T) { suite.Run(t, new(IntegrationTestSuite)) }
Index ¶
- Constants
- Variables
- func ExecQuery(clientCtx client.Context, cmd *cobra.Command, args []string, ...) error
- func FillWalletFromValidator(addr sdk.AccAddress, balance sdk.Coins, val *Validator, feesDenom string) error
- func LogMnemonic(l Logger, secret string)
- func NewAccount(network *Network, uid string) sdk.AccAddress
- func NewKeyring(t *testing.T) (kring keyring.Keyring, algo keyring.SignatureAlgo, nodeDirName string)
- func QueryOracleExchangeRate(clientCtx client.Context, pair asset.Pair) (*oracletypes.QueryExchangeRateResponse, error)
- func QuerySudoers(clientCtx client.Context) (*sudotypes.QuerySudoersResponse, error)
- func QueryTx(ctx client.Context, txHash string) (*sdk.TxResponse, error)
- type AppConstructor
- type Config
- type EncodingType
- type ExecQueryOption
- type ExecTxOption
- type Logger
- type Network
- func (chain *Network) BroadcastMsgs(from sdk.AccAddress, msgs ...sdk.Msg) (*sdk.TxResponse, error)
- func (n *Network) Cleanup()
- func (chain Network) ExecQuery(cmd *cobra.Command, args []string, result codec.ProtoMarshaler, ...) error
- func (network *Network) ExecTxCmd(cmd *cobra.Command, from sdk.AccAddress, args []string, opts ...ExecTxOption) (*sdk.TxResponse, error)
- func (n *Network) LatestHeight() (int64, error)
- func (n *Network) WaitForDuration(duration time.Duration) error
- func (n *Network) WaitForHeight(h int64) (int64, error)
- func (n *Network) WaitForHeightWithTimeout(h int64, t time.Duration) (int64, error)
- func (n *Network) WaitForNextBlock() error
- type TxOptionChanges
- type Validator
Constants ¶
const ( // EncodingTypeJSON defines the types are JSON encoded or need to be encoded using JSON. EncodingTypeJSON = iota // EncodingTypeProto defines the types are proto encoded or need to be encoded using proto. EncodingTypeProto )
Variables ¶
var DEFAULT_TX_OPTIONS = execTxOptions{ Fees: sdk.NewCoins(sdk.NewCoin(denoms.NIBI, sdk.NewInt(1000))), Gas: 2000000, SkipConfirmation: true, BroadcastMode: flags.BroadcastSync, CanFail: false, KeyringBackend: keyring.BackendTest, }
Functions ¶
func ExecQuery ¶
func ExecQuery( clientCtx client.Context, cmd *cobra.Command, args []string, result codec.ProtoMarshaler, opts ...ExecQueryOption, ) error
ExecQuery executes a CLI query onto the provided Network.
func FillWalletFromValidator ¶
func FillWalletFromValidator( addr sdk.AccAddress, balance sdk.Coins, val *Validator, feesDenom string, ) error
FillWalletFromValidator fills the wallet with some coins that come from the validator.
func LogMnemonic ¶ added in v0.21.9
LogMnemonic logs a secret to the network's logger for debugging and manual testing
func NewAccount ¶
func NewAccount(network *Network, uid string) sdk.AccAddress
NewAccount Creates a new account with a random mnemonic, stores the mnemonic in the keyring, and returns the address.
args:
- network: the network in which to create the account and key
- uid: a unique identifier to ensure duplicate accounts are not created
ret:
- addr: the address of the new account
func NewKeyring ¶ added in v0.21.9
func QueryOracleExchangeRate ¶
func QueryOracleExchangeRate(clientCtx client.Context, pair asset.Pair) (*oracletypes.QueryExchangeRateResponse, error)
func QuerySudoers ¶ added in v0.21.0
func QuerySudoers(clientCtx client.Context) (*sudotypes.QuerySudoersResponse, error)
Types ¶
type AppConstructor ¶
type AppConstructor = func(val Validator) servertypes.Application
AppConstructor defines a function which accepts a network configuration and creates an ABCI Application to provide to Tendermint.
func NewAppConstructor ¶ added in v0.21.0
func NewAppConstructor(encodingCfg app.EncodingConfig, chainID string) AppConstructor
NewAppConstructor returns a new simapp AppConstructor
type Config ¶
type Config struct { Codec codec.Codec LegacyAmino *codec.LegacyAmino // TODO: Remove! InterfaceRegistry codectypes.InterfaceRegistry TxConfig client.TxConfig AccountRetriever client.AccountRetriever AppConstructor AppConstructor // the ABCI application constructor GenesisState map[string]json.RawMessage // custom genesis state to provide TimeoutCommit time.Duration // TimeoutCommit: the consensus commitment timeout. ChainID string // the network chain-id NumValidators int // the total number of validators to create and bond Mnemonics []string // custom user-provided validator operator mnemonics BondDenom string // the staking bond denomination MinGasPrices string // the minimum gas prices each validator will accept AccountTokens sdkmath.Int // the amount of unique validator tokens (e.g. 1000node0) StakingTokens sdkmath.Int // the amount of tokens each validator has available to stake BondedTokens sdkmath.Int // the amount of tokens each validator stakes StartingTokens sdk.Coins // Additional tokens to be added to the starting block to validators PruningStrategy string // the pruning strategy each validator will have EnableTMLogging bool // enable Tendermint logging to STDOUT CleanupDir bool // remove base temporary directory during cleanup SigningAlgo string // signing algorithm for keys KeyringOptions []keyring.Option // keyring configuration options RPCAddress string // RPC listen address (including port) APIAddress string // REST API listen address (including port) GRPCAddress string // GRPC server listen address (including port) }
Config: Defines the parameters needed to start a local test network.
func BuildNetworkConfig ¶
func BuildNetworkConfig(appGenesis app.GenesisState) Config
BuildNetworkConfig returns a configuration for a local in-testing network
func (*Config) AbsorbListenAddresses ¶ added in v0.21.9
AbsorbListenAddresses ensures that the listening addresses for an active node are set on the network config.
func (*Config) AbsorbServerConfig ¶ added in v0.21.9
func (cfg *Config) AbsorbServerConfig(srvCfg *serverconfig.Config)
func (*Config) AbsorbTmConfig ¶ added in v0.21.9
type EncodingType ¶
type EncodingType int
EncodingType defines the encoding methodology for requests and responses.
type ExecQueryOption ¶
type ExecQueryOption func(queryOption *queryOptions)
ExecQueryOption defines a type which customizes a CLI query operation.
func WithQueryEncodingType ¶
func WithQueryEncodingType(e EncodingType) ExecQueryOption
WithQueryEncodingType defines how the response of the CLI query should be decoded.
type ExecTxOption ¶
type ExecTxOption func(*execTxOptions)
func WithTxOptions ¶ added in v0.21.9
func WithTxOptions(newOptions TxOptionChanges) ExecTxOption
type Logger ¶ added in v0.21.0
type Logger interface { Log(args ...interface{}) Logf(format string, args ...interface{}) }
Logger is a network logger interface that exposes testnet-level Log() methods for an in-process testing network This is not to be confused with logging that may happen at an individual node or validator level
type Network ¶
Network defines a in-process testing network. It is primarily intended for client and integration testing. The Network struct can spawn any number of validators, each with its own RPC and API clients.
### Constraints
- Only the first validator will have a functional RPC and API server/client.
- Due to constraints in Tendermint's JSON-RPC implementation, only one test network can run at a time. For this reason, it's essential to invoke `Network.Cleanup` after testing to allow other tests to create networks.
func (*Network) BroadcastMsgs ¶ added in v0.21.9
func (chain *Network) BroadcastMsgs( from sdk.AccAddress, msgs ...sdk.Msg, ) (*sdk.TxResponse, error)
func (*Network) Cleanup ¶
func (n *Network) Cleanup()
Cleanup removes the root testing (temporary) directory and stops both the Tendermint and API services. It allows other callers to create and start test networks. This method must be called when a test is finished, typically in a defer.
func (Network) ExecQuery ¶ added in v1.0.0
func (chain Network) ExecQuery( cmd *cobra.Command, args []string, result codec.ProtoMarshaler, opts ...ExecQueryOption, ) error
func (*Network) ExecTxCmd ¶ added in v0.21.9
func (network *Network) ExecTxCmd( cmd *cobra.Command, from sdk.AccAddress, args []string, opts ...ExecTxOption, ) (*sdk.TxResponse, error)
func (*Network) LatestHeight ¶
LatestHeight returns the latest height of the network or an error if the query fails or no validators exist.
func (*Network) WaitForDuration ¶
WaitForDuration waits for at least the duration provided in blockchain time.
func (*Network) WaitForHeight ¶
WaitForHeight performs a blocking check where it waits for a block to be committed after a given block. If that height is not reached within a timeout, an error is returned. Regardless, the latest height queried is returned.
func (*Network) WaitForHeightWithTimeout ¶
WaitForHeightWithTimeout is the same as WaitForHeight except the caller can provide a custom timeout.
func (*Network) WaitForNextBlock ¶
WaitForNextBlock waits for the next block to be committed, returning an error upon failure.
type TxOptionChanges ¶ added in v0.21.9
type Validator ¶
type Validator struct { AppConfig *serverconfig.Config ClientCtx client.Context Ctx *server.Context // Dir is the root directory of the validator node data and config. Passed to the Tendermint config. Dir string // NodeID is a unique ID for the validator generated when the // 'cli.Network' is started. NodeID string PubKey cryptotypes.PubKey // Moniker is a human-readable name that identifies a validator. A // moniker is optional and may be empty. Moniker string // APIAddress is the endpoint that the validator API server binds to. // Only the first validator of a 'cli.Network' exposes the full API. APIAddress string // RPCAddress is the endpoint that the RPC server binds to. Only the // first validator of a 'cli.Network' exposes the full API. RPCAddress string // P2PAddress is the endpoint that the RPC server binds to. The P2P // server handles Tendermint peer-to-peer (P2P) networking and is // critical for blockchain replication and consensus. It allows nodes // to gossip blocks, transactions, and consensus messages. Only the // first validator of a 'cli.Network' exposes the full API. P2PAddress string // Address - account address Address sdk.AccAddress // ValAddress - validator operator (valoper) address ValAddress sdk.ValAddress // RPCClient wraps most important rpc calls a client would make to // listen for events, test if it also implements events.EventSwitch. // // RPCClient implementations in "github.com/cometbft/cometbft/rpc" v0.37.2: // - rcp.HTTP // - rpc.Local RPCClient tmclient.Client // contains filtered or unexported fields }
Validator defines an in-process Tendermint validator node. Through this object, a client can make RPC and API calls and interact with any client command or handler.