network

Documentation

Index

• type AppConstructor
  • func NewAppConstructor(encodingCfg params.EncodingConfig) AppConstructor
• type Config
  • func DefaultConfig() Config
• type Network
  • func New(t *testing.T, configs ...Config) *Network
  • func (n *Network) Cleanup()
  • func (n *Network) LatestHeight() (int64, 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 Validator

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

func NewAppConstructor(encodingCfg params.EncodingConfig) 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 gensis state to provide
	TimeoutCommit    time.Duration              // the consensus commitment timeout
	ChainID          string                     // the network chain-id
	NumValidators    int                        // the total number of validators to create and bond
	BondDenom        string                     // the staking bond denomination
	MinGasPrices     string                     // the minimum gas prices each validator will accept
	AccountTokens    sdk.Int                    // the amount of unique validator tokens (e.g. 1000node0)
	StakingTokens    sdk.Int                    // the amount of tokens each validator has available to stake
	BondedTokens     sdk.Int                    // the amount of tokens each validator stakes
	PruningStrategy  string                     // the pruning strategy each validator will have
	EnableLogging    bool                       // enable Tendermint logging to STDOUT
	CleanupDir       bool                       // remove base temporary directory during cleanup
	SigningAlgo      string                     // signing algorithm for keys
	KeyringOptions   []keyring.Option
}

Config defines the necessary configuration used to bootstrap and start an in-process local testing network.

func DefaultConfig

func DefaultConfig() Config

DefaultConfig will initialize config for the network with custom application, genesis and single validator. All other parameters are inherited from cosmos-sdk/testutil/network.DefaultConfig.

type Network

type Network struct {
	T          *testing.T
	BaseDir    string
	Validators []*Validator

	Config Config
}

Network defines a local in-process testing network using SimApp. It can be configured to start any number of validators, each with its own RPC and API clients. Typically, this test network would be used in client and integration testing where user input is expected.

Note, due to Tendermint constraints in regards to RPC functionality, there may only be one test network running at a time. Thus, any caller must be sure to Cleanup after testing is finished in order to allow other tests to create networks. In addition, only the first validator will have a valid RPC and API server/client.

func New

func New(t *testing.T, configs ...Config) *Network

New creates instance with fully configured cosmos network. Accepts optional config, that will be used in place of the DefaultConfig() if provided.

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) LatestHeight

func (n *Network) LatestHeight() (int64, error)

LatestHeight returns the latest height of the network or an error if the query fails or no validators exist.

func (*Network) WaitForHeight

func (n *Network) WaitForHeight(h int64) (int64, error)

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

func (n *Network) WaitForHeightWithTimeout(h int64, t time.Duration) (int64, error)

WaitForHeightWithTimeout is the same as WaitForHeight except the caller can provide a custom timeout.

func (*Network) WaitForNextBlock

func (n *Network) WaitForNextBlock() error

WaitForNextBlock waits for the next block to be committed, returning an error upon failure.

type Validator

type Validator struct {
	AppConfig  *srvconfig.Config
	ClientCtx  client.Context
	Ctx        *server.Context
	Dir        string
	NodeID     string
	PubKey     cryptotypes.PubKey
	Moniker    string
	APIAddress string
	RPCAddress string
	P2PAddress string
	Address    sdk.AccAddress
	ValAddress sdk.ValAddress
	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.