From ecd475f728c1735ffc211b42ff5b2b36d4b52981 Mon Sep 17 00:00:00 2001
From: Martin Boehm <martin.boehm@1mbsoftware.net>
Date: Mon, 16 Apr 2018 16:40:14 +0200
Subject: [PATCH] Implement test VerifyLog of logged socket.io communication -
 WIP

---
 server/socketio_test.go | 188 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 188 insertions(+)
 create mode 100644 server/socketio_test.go

diff --git a/server/socketio_test.go b/server/socketio_test.go
new file mode 100644
index 00000000..799c2ca2
--- /dev/null
+++ b/server/socketio_test.go
@@ -0,0 +1,188 @@
+package server
+
+import (
+	"bufio"
+	"crypto/tls"
+	"encoding/json"
+	"flag"
+	"os"
+	"sort"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/gorilla/websocket"
+	"github.com/martinboehm/golang-socketio"
+	"github.com/martinboehm/golang-socketio/transport"
+)
+
+var (
+	// verifier functionality
+	verifylog = flag.String("verifylog", "", "path to logfile containing socket.io requests/responses")
+	wsurl     = flag.String("wsurl", "", "URL of socket.io interface to verify")
+)
+
+type verifyStats struct {
+	Count            int
+	SuccessCount     int
+	TotalLogNs       int64
+	TotalBlockbookNs int64
+}
+
+type logMessage struct {
+	ID  int             `json:"id"`
+	Et  int64           `json:"et"`
+	Res json.RawMessage `json:"res"`
+	Req json.RawMessage `json:"req"`
+}
+
+type logRequestResponse struct {
+	Request, Response json.RawMessage
+	LogElapsedTime    int64
+}
+
+func getStat(m string, stats map[string]*verifyStats) *verifyStats {
+	s, ok := stats[m]
+	if !ok {
+		s = &verifyStats{}
+		stats[m] = s
+	}
+	return s
+}
+
+func verifyGetInfo(t *testing.T, id int, lrs *logRequestResponse, bbRequest map[string]json.RawMessage, bbResponseS string, stat *verifyStats) {
+	bbResponse := resultGetInfo{}
+	err := json.Unmarshal([]byte(bbResponseS), &bbResponse)
+	if err != nil {
+		t.Log(id, ": error unmarshal BB request ", err)
+		return
+	}
+	logResponse := resultGetInfo{}
+	err = json.Unmarshal([]byte(lrs.Response), &logResponse)
+	if err != nil {
+		t.Log(id, ": error unmarshal log request ", err)
+		return
+	}
+	if logResponse.Result.Blocks <= bbResponse.Result.Blocks &&
+		logResponse.Result.Testnet == bbResponse.Result.Testnet &&
+		logResponse.Result.Network == bbResponse.Result.Network {
+		stat.SuccessCount++
+	}
+}
+
+func verifyMessage(t *testing.T, ws *gosocketio.Client, id int, lrs *logRequestResponse, stats map[string]*verifyStats) {
+	req := make(map[string]json.RawMessage)
+	err := json.Unmarshal(lrs.Request, &req)
+	if err != nil {
+		t.Log(id, ": error unmarshal request ", err)
+		return
+	}
+	method := strings.Trim(string(req["method"]), "\"")
+	if method == "" {
+		t.Log(id, ": there is no method specified in request")
+		return
+	}
+	// send the message to blockbook
+	start := time.Now()
+	res, err := ws.Ack("message", lrs.Request, time.Second*30)
+	if err != nil {
+		t.Log(id, ",", method, ": ws.Ack error ", err)
+		getStat("ackError", stats).Count++
+		return
+	}
+	ts := time.Since(start).Nanoseconds()
+	t.Log(id, ",", method, ": response ", res)
+	stat := getStat(method, stats)
+	stat.Count++
+	stat.TotalLogNs += lrs.LogElapsedTime
+	stat.TotalBlockbookNs += ts
+	switch method {
+	case "getAddressTxids":
+	case "getAddressHistory":
+	case "getBlockHeader":
+	case "getDetailedTransaction":
+	case "getInfo":
+		verifyGetInfo(t, id, lrs, req, res, stat)
+	case "estimateSmartFee":
+	case "estimateFee":
+	case "sendTransaction":
+	case "getMempoolEntry":
+		break
+	default:
+		t.Log(id, ",", method, ": unknown method", method)
+	}
+}
+
+func Test_VerifyLog(t *testing.T) {
+	if *verifylog == "" || *wsurl == "" {
+		t.Skip("skipping test, flags verifylog or wsurl not specified")
+	}
+	t.Log("Verifying log", *verifylog, "against service", *wsurl)
+	tr := transport.GetDefaultWebsocketTransport()
+	tr.WebsocketDialer = websocket.Dialer{
+		TLSClientConfig: &tls.Config{InsecureSkipVerify: true},
+	}
+	ws, err := gosocketio.Dial(*wsurl, tr)
+	if err != nil {
+		t.Fatal("Dial error ", err)
+		return
+	}
+	defer ws.Close()
+	file, err := os.Open(*verifylog)
+	if err != nil {
+		t.Fatal("File read error", err)
+		return
+	}
+	defer file.Close()
+	scanner := bufio.NewScanner(file)
+	scanner.Split(bufio.ScanLines)
+	line := 0
+	stats := make(map[string]*verifyStats)
+	pairs := make(map[int]*logRequestResponse, 0)
+	for scanner.Scan() {
+		line++
+		msg := logMessage{}
+		err := json.Unmarshal(scanner.Bytes(), &msg)
+		if err != nil {
+			t.Log("Line ", line, ": json error ", err)
+			continue
+		}
+		lrs, exists := pairs[msg.ID]
+		if !exists {
+			lrs = &logRequestResponse{}
+			pairs[msg.ID] = lrs
+		}
+		if msg.Req != nil {
+			if lrs.Request != nil {
+				t.Log("Line ", line, ": duplicate request with id ", msg.ID)
+				continue
+			}
+			lrs.Request = msg.Req
+		} else if msg.Res != nil {
+			if lrs.Response != nil {
+				t.Log("Line ", line, ": duplicate response with id ", msg.ID)
+				continue
+			}
+			lrs.Response = msg.Res
+			lrs.LogElapsedTime = msg.Et
+		}
+		if lrs.Request != nil && lrs.Response != nil {
+			verifyMessage(t, ws, msg.ID, lrs, stats)
+			delete(pairs, msg.ID)
+		}
+	}
+	var keys []string
+	for k := range stats {
+		keys = append(keys, k)
+	}
+	failures := 0
+	sort.Strings(keys)
+	for _, k := range keys {
+		s := stats[k]
+		failures += s.Count - s.SuccessCount
+		t.Log("Method:", k, "\tCount:", s.Count, "\tSuccess:", s.SuccessCount, "\tTime log:", s.TotalLogNs, "\tTime BB:", s.TotalBlockbookNs)
+	}
+	if failures != 0 {
+		t.Error("Number of failures:", failures)
+	}
+}