rpc: give each call a dedicated Response struct, add basic test

rpc/test/rpc_test.go

@@ -0,0 +1,70 @@
+package rpc
+
+import (
+	"encoding/json"
+	"fmt"
+	"github.com/tendermint/tendermint/config"
+	"github.com/tendermint/tendermint/daemon"
+	"github.com/tendermint/tendermint/p2p"
+	"github.com/tendermint/tendermint/rpc"
+	"io/ioutil"
+	"net/http"
+	"testing"
+	"time"
+)
+
+var (
+	rpcAddr     = "127.0.0.1:8089"
+	requestAddr = "http://" + rpcAddr + "/"
+	chainId     string
+	node        *daemon.Node
+)
+
+func newNode() {
+	// Create & start node
+	node = daemon.NewNode()
+	l := p2p.NewDefaultListener("tcp", config.App().GetString("ListenAddr"), false)
+	node.AddListener(l)
+	node.Start()
+
+	// Run the RPC server.
+	node.StartRpc()
+
+	// Sleep forever
+	ch := make(chan struct{})
+	<-ch
+}
+
+func init() {
+	app := config.App()
+	app.Set("SeedNode", "")
+	app.Set("DB.Backend", "memdb")
+	app.Set("RPC.HTTP.ListenAddr", rpcAddr)
+	config.SetApp(app)
+	// start a node
+	go newNode()
+	time.Sleep(2 * time.Second)
+}
+
+func TestSayHello(t *testing.T) {
+	resp, err := http.Get(requestAddr + "status")
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer resp.Body.Close()
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		t.Fatal(err)
+	}
+	var status struct {
+		Status string
+		Data   rpc.ResponseStatus
+	}
+	err = json.Unmarshal(body, &status)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if status.Data.ChainId != node.Switch().GetChainId() {
+		t.Fatal(fmt.Errorf("ChainId mismatch: got %s expected %s", status.Data.ChainId, node.Switch().GetChainId()))
+	}
+}