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219 lines
5.1 KiB
219 lines
5.1 KiB
package rpctest
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import (
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"fmt"
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"net/http"
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"testing"
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"time"
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"github.com/gorilla/websocket"
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. "github.com/tendermint/go-common"
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"github.com/tendermint/go-p2p"
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"github.com/tendermint/go-wire"
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"github.com/tendermint/go-events"
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client "github.com/tendermint/go-rpc/client"
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"github.com/tendermint/go-rpc/types"
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_ "github.com/tendermint/tendermint/config/tendermint_test"
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nm "github.com/tendermint/tendermint/node"
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"github.com/tendermint/tendermint/types"
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)
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// global variables for use across all tests
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var (
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node *nm.Node
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mempoolCount = 0
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chainID string
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rpcAddr, requestAddr, websocketAddr string
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clientURI *client.ClientURI
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clientJSON *client.ClientJSONRPC
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)
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// initialize config and create new node
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func init() {
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initConfig()
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chainID = config.GetString("chain_id")
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rpcAddr = config.GetString("rpc_laddr")
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requestAddr = "http://" + rpcAddr
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websocketAddr = "ws://" + rpcAddr + "/websocket"
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clientURI = client.NewClientURI(requestAddr)
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clientJSON = client.NewClientJSONRPC(requestAddr)
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// TODO: change consensus/state.go timeouts to be shorter
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// start a node
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ready := make(chan struct{})
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go newNode(ready)
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<-ready
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}
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// create a new node and sleep forever
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func newNode(ready chan struct{}) {
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// Create & start node
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privValidatorFile := config.GetString("priv_validator_file")
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privValidator := types.LoadOrGenPrivValidator(privValidatorFile)
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node = nm.NewNode(privValidator)
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l := p2p.NewDefaultListener("tcp", config.GetString("node_laddr"), true)
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node.AddListener(l)
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node.Start()
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// Run the RPC server.
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node.StartRPC()
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ready <- struct{}{}
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// Sleep forever
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ch := make(chan struct{})
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<-ch
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}
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//--------------------------------------------------------------------------------
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// Utilities for testing the websocket service
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// create a new connection
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func newWSCon(t *testing.T) *websocket.Conn {
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dialer := websocket.DefaultDialer
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rHeader := http.Header{}
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con, r, err := dialer.Dial(websocketAddr, rHeader)
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fmt.Println("response", r)
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if err != nil {
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t.Fatal(err)
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}
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return con
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}
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// subscribe to an event
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func subscribe(t *testing.T, con *websocket.Conn, eventid string) {
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err := con.WriteJSON(rpctypes.RPCRequest{
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JSONRPC: "2.0",
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ID: "",
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Method: "subscribe",
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Params: []interface{}{eventid},
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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// unsubscribe from an event
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func unsubscribe(t *testing.T, con *websocket.Conn, eventid string) {
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err := con.WriteJSON(rpctypes.RPCRequest{
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JSONRPC: "2.0",
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ID: "",
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Method: "unsubscribe",
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Params: []interface{}{eventid},
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})
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if err != nil {
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t.Fatal(err)
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}
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}
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// wait for an event; do things that might trigger events, and check them when they are received
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// the check function takes an event id and the byte slice read off the ws
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func waitForEvent(t *testing.T, con *websocket.Conn, eventid string, dieOnTimeout bool, f func(), check func(string, []byte) error) {
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// go routine to wait for webscoket msg
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goodCh := make(chan []byte)
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errCh := make(chan error)
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quitCh := make(chan struct{})
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defer close(quitCh)
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// Read message
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go func() {
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for {
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_, p, err := con.ReadMessage()
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if err != nil {
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errCh <- err
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break
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} else {
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// if the event id isnt what we're waiting on
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// ignore it
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var response rpctypes.RPCResponse
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var err error
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wire.ReadJSON(&response, p, &err)
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if err != nil {
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errCh <- err
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break
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}
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event, ok := response.Result.(*events.EventResult)
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if ok && event.Event == eventid {
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goodCh <- p
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break
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}
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}
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}
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}()
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// do stuff (transactions)
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f()
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// wait for an event or timeout
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timeout := time.NewTimer(10 * time.Second)
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select {
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case <-timeout.C:
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if dieOnTimeout {
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con.Close()
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t.Fatalf("%s event was not received in time", eventid)
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}
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// else that's great, we didn't hear the event
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// and we shouldn't have
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case p := <-goodCh:
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if dieOnTimeout {
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// message was received and expected
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// run the check
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err := check(eventid, p)
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if err != nil {
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t.Fatal(err)
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panic(err) // Show the stack trace.
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}
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} else {
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con.Close()
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t.Fatalf("%s event was not expected", eventid)
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}
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case err := <-errCh:
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t.Fatal(err)
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panic(err) // Show the stack trace.
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}
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}
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//--------------------------------------------------------------------------------
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func unmarshalResponseNewBlock(b []byte) (*types.Block, error) {
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// unmarshall and assert somethings
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var response rpctypes.RPCResponse
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var err error
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wire.ReadJSON(&response, b, &err)
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if err != nil {
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return nil, err
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}
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if response.Error != "" {
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return nil, fmt.Errorf(response.Error)
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}
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block := response.Result.(*events.EventResult).Data.(types.EventDataNewBlock).Block
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return block, nil
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}
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func unmarshalValidateBlockchain(t *testing.T, con *websocket.Conn, eid string) {
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var initBlockN int
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for i := 0; i < 3; i++ {
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waitForEvent(t, con, eid, true, func() {}, func(eid string, b []byte) error {
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block, err := unmarshalResponseNewBlock(b)
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if err != nil {
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return err
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}
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if i == 0 {
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initBlockN = block.Header.Height
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} else {
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if block.Header.Height != initBlockN+i {
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return fmt.Errorf("Expected block %d, got block %d", i, block.Header.Height)
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}
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}
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return nil
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})
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}
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}
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