package rpctest
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import (
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"context"
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"fmt"
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"math/rand"
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"os"
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"path/filepath"
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"strings"
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"github.com/tendermint/tmlibs/log"
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abci "github.com/tendermint/abci/types"
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cfg "github.com/tendermint/tendermint/config"
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nm "github.com/tendermint/tendermint/node"
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"github.com/tendermint/tendermint/proxy"
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ctypes "github.com/tendermint/tendermint/rpc/core/types"
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core_grpc "github.com/tendermint/tendermint/rpc/grpc"
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rpcclient "github.com/tendermint/tendermint/rpc/lib/client"
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"github.com/tendermint/tendermint/types"
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)
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var globalConfig *cfg.Config
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func waitForRPC() {
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laddr := GetConfig().RPC.ListenAddress
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client := rpcclient.NewJSONRPCClient(laddr)
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result := new(ctypes.ResultStatus)
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for {
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_, err := client.Call("status", map[string]interface{}{}, result)
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if err == nil {
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return
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}
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}
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}
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func waitForGRPC() {
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client := GetGRPCClient()
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for {
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_, err := client.Ping(context.Background(), &core_grpc.RequestPing{})
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if err == nil {
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return
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}
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}
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}
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// f**ing long, but unique for each test
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func makePathname() string {
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// get path
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p, err := os.Getwd()
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if err != nil {
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panic(err)
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}
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fmt.Println(p)
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sep := string(filepath.Separator)
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return strings.Replace(p, sep, "_", -1)
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}
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func randPort() int {
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// returns between base and base + spread
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base, spread := 20000, 20000
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return base + rand.Intn(spread)
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}
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func makeAddrs() (string, string, string) {
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start := randPort()
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return fmt.Sprintf("tcp://0.0.0.0:%d", start),
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fmt.Sprintf("tcp://0.0.0.0:%d", start+1),
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fmt.Sprintf("tcp://0.0.0.0:%d", start+2)
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}
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// GetConfig returns a config for the test cases as a singleton
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func GetConfig() *cfg.Config {
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if globalConfig == nil {
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pathname := makePathname()
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globalConfig = cfg.ResetTestRoot(pathname)
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// and we use random ports to run in parallel
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tm, rpc, grpc := makeAddrs()
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globalConfig.P2P.ListenAddress = tm
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globalConfig.RPC.ListenAddress = rpc
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globalConfig.RPC.GRPCListenAddress = grpc
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}
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return globalConfig
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}
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func GetGRPCClient() core_grpc.BroadcastAPIClient {
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grpcAddr := globalConfig.RPC.GRPCListenAddress
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return core_grpc.StartGRPCClient(grpcAddr)
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}
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// StartTendermint starts a test tendermint server in a go routine and returns when it is initialized
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func StartTendermint(app abci.Application) *nm.Node {
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node := NewTendermint(app)
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_, err := node.Start()
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if err != nil {
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panic(err)
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}
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// wait for rpc
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waitForRPC()
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waitForGRPC()
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fmt.Println("Tendermint running!")
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return node
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}
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// NewTendermint creates a new tendermint server and sleeps forever
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func NewTendermint(app abci.Application) *nm.Node {
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// Create & start node
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config := GetConfig()
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logger := log.NewTMLogger(log.NewSyncWriter(os.Stdout))
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logger = log.NewFilter(logger, log.AllowError())
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privValidatorFile := config.PrivValidatorFile()
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privValidator := types.LoadOrGenPrivValidatorFS(privValidatorFile)
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papp := proxy.NewLocalClientCreator(app)
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node, err := nm.NewNode(config, privValidator, papp,
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nm.DefaultGenesisDocProviderFunc(config),
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nm.DefaultDBProvider, logger)
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if err != nil {
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panic(err)
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}
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return node
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}
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