Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use writeJSON method of httpmultibin Package

Best K6 code snippet using httpmultibin.writeJSON

logs_test.go

Source:logs_test.go

1/*2 *3 * k6 - a next-generation load testing tool4 * Copyright (C) 2020 Load Impact5 *6 * This program is free software: you can redistribute it and/or modify7 * it under the terms of the GNU Affero General Public License as8 * published by the Free Software Foundation, either version 3 of the9 * License, or (at your option) any later version.10 *11 * This program is distributed in the hope that it will be useful,12 * but WITHOUT ANY WARRANTY; without even the implied warranty of13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the14 * GNU Affero General Public License for more details.15 *16 * You should have received a copy of the GNU Affero General Public License17 * along with this program.  If not, see <http://www.gnu.org/licenses/>.18 *19 */20package cloudapi21import (22	"context"23	"encoding/json"24	"fmt"25	"io/ioutil"26	"net/http"27	"net/url"28	"strconv"29	"strings"30	"sync/atomic"31	"testing"32	"time"33	"github.com/gorilla/websocket"34	"github.com/mailru/easyjson"35	"github.com/sirupsen/logrus"36	"github.com/stretchr/testify/assert"37	"github.com/stretchr/testify/require"38	"gopkg.in/guregu/null.v3"39	"go.k6.io/k6/lib/testutils"40	"go.k6.io/k6/lib/testutils/httpmultibin"41)42func TestMsgParsing(t *testing.T) {43	m := `{44  "streams": [45    {46      "stream": {47      	"key1": "value1",48	   	"key2": "value2"49      },50      "values": [51        [52      	"1598282752000000000",53		"something to log"54        ]55      ]56    }57  ],58  "dropped_entries": [59    {60      "labels": {61      	"key3": "value1",62	   	"key4": "value2"63      },64      "timestamp": "1598282752000000000"65    }66  ]67}68`69	expectMsg := msg{70		Streams: []msgStreams{71			{72				Stream: map[string]string{"key1": "value1", "key2": "value2"},73				Values: [][2]string{{"1598282752000000000", "something to log"}},74			},75		},76		DroppedEntries: []msgDroppedEntries{77			{78				Labels:    map[string]string{"key3": "value1", "key4": "value2"},79				Timestamp: "1598282752000000000",80			},81		},82	}83	var message msg84	require.NoError(t, easyjson.Unmarshal([]byte(m), &message))85	require.Equal(t, expectMsg, message)86}87func TestMSGLog(t *testing.T) {88	expectMsg := msg{89		Streams: []msgStreams{90			{91				Stream: map[string]string{"key1": "value1", "key2": "value2"},92				Values: [][2]string{{"1598282752000000000", "something to log"}},93			},94			{95				Stream: map[string]string{"key1": "value1", "key2": "value2", "level": "warn"},96				Values: [][2]string{{"1598282752000000000", "something else log"}},97			},98		},99		DroppedEntries: []msgDroppedEntries{100			{101				Labels:    map[string]string{"key3": "value1", "key4": "value2", "level": "panic"},102				Timestamp: "1598282752000000000",103			},104		},105	}106	logger := logrus.New()107	logger.Out = ioutil.Discard108	hook := &testutils.SimpleLogrusHook{HookedLevels: logrus.AllLevels}109	logger.AddHook(hook)110	expectMsg.Log(logger)111	logLines := hook.Drain()112	assert.Equal(t, 4, len(logLines))113	expectTime := time.Unix(0, 1598282752000000000)114	for i, entry := range logLines {115		var expectedMsg string116		switch i {117		case 0:118			expectedMsg = "something to log"119		case 1:120			expectedMsg = "last message had unknown level "121		case 2:122			expectedMsg = "something else log"123		case 3:124			expectedMsg = "dropped"125		}126		require.Equal(t, expectedMsg, entry.Message)127		require.Equal(t, expectTime, entry.Time)128	}129}130func TestRetry(t *testing.T) {131	t.Parallel()132	t.Run("Success", func(t *testing.T) {133		t.Parallel()134		tests := []struct {135			name     string136			attempts int137			expWaits []time.Duration // pow(abs(interval), attempt index)138		}{139			{140				name:     "NoRetry",141				attempts: 1,142			},143			{144				name:     "TwoAttempts",145				attempts: 2,146				expWaits: []time.Duration{5 * time.Second},147			},148			{149				name:     "MaximumExceeded",150				attempts: 4,151				expWaits: []time.Duration{5 * time.Second, 25 * time.Second, 2 * time.Minute},152			},153			{154				name:     "AttemptsLimit",155				attempts: 5,156				expWaits: []time.Duration{5 * time.Second, 25 * time.Second, 2 * time.Minute, 2 * time.Minute},157			},158		}159		for _, tt := range tests {160			t.Run(tt.name, func(t *testing.T) {161				var sleepRequests []time.Duration162				// sleepCollector tracks the request duration value for sleep requests.163				sleepCollector := sleeperFunc(func(d time.Duration) {164					sleepRequests = append(sleepRequests, d)165				})166				var iterations int167				err := retry(sleepCollector, 5, 5*time.Second, 2*time.Minute, func() error {168					iterations++169					if iterations < tt.attempts {170						return fmt.Errorf("unexpected error")171					}172					return nil173				})174				require.NoError(t, err)175				require.Equal(t, tt.attempts, iterations)176				require.Equal(t, len(tt.expWaits), len(sleepRequests))177				// the added random milliseconds makes difficult to know the exact value178				// so it asserts that expwait <= actual <= expwait + 1s179				for i, expwait := range tt.expWaits {180					assert.GreaterOrEqual(t, sleepRequests[i], expwait)181					assert.LessOrEqual(t, sleepRequests[i], expwait+(1*time.Second))182				}183			})184		}185	})186	t.Run("Fail", func(t *testing.T) {187		t.Parallel()188		mock := sleeperFunc(func(time.Duration) { /* noop - nowait */ })189		err := retry(mock, 5, 5*time.Second, 30*time.Second, func() error {190			return fmt.Errorf("unexpected error")191		})192		assert.Error(t, err, "unexpected error")193	})194}195func TestStreamLogsToLogger(t *testing.T) {196	t.Parallel()197	// It registers an handler for the logtail endpoint198	// It upgrades as websocket the HTTP handler and invokes the provided callback.199	logtailHandleFunc := func(tb *httpmultibin.HTTPMultiBin, fn func(*websocket.Conn, *http.Request)) {200		upgrader := websocket.Upgrader{201			ReadBufferSize:  1024,202			WriteBufferSize: 1024,203		}204		tb.Mux.HandleFunc("/api/v1/tail", func(w http.ResponseWriter, req *http.Request) {205			conn, err := upgrader.Upgrade(w, req, nil)206			require.NoError(t, err)207			fn(conn, req)208			_ = conn.Close()209		})210	}211	// a basic config with the logtail endpoint set212	configFromHTTPMultiBin := func(tb *httpmultibin.HTTPMultiBin) Config {213		wsurl := strings.TrimPrefix(tb.ServerHTTP.URL, "http://")214		return Config{215			LogsTailURL: null.NewString(fmt.Sprintf("ws://%s/api/v1/tail", wsurl), false),216		}217	}218	// get all messages from the mocked logger219	logLines := func(hook *testutils.SimpleLogrusHook) (lines []string) {220		for _, e := range hook.Drain() {221			lines = append(lines, e.Message)222		}223		return224	}225	generateLogline := func(key string, ts uint64, msg string) string {226		return fmt.Sprintf(`{"streams":[{"stream":{"key":%q,"level":"warn"},"values":[["%d",%q]]}],"dropped_entities":[]}`, key, ts, msg)227	}228	t.Run("Success", func(t *testing.T) {229		t.Parallel()230		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)231		defer cancel()232		tb := httpmultibin.NewHTTPMultiBin(t)233		logtailHandleFunc(tb, func(conn *websocket.Conn, _ *http.Request) {234			rawmsg := json.RawMessage(generateLogline("stream1", 1598282752000000000, "logline1"))235			err := conn.WriteJSON(rawmsg)236			require.NoError(t, err)237			rawmsg = json.RawMessage(generateLogline("stream2", 1598282752000000001, "logline2"))238			err = conn.WriteJSON(rawmsg)239			require.NoError(t, err)240			// wait the flush on the network241			time.Sleep(5 * time.Millisecond)242			cancel()243		})244		logger := logrus.New()245		logger.Out = ioutil.Discard246		hook := &testutils.SimpleLogrusHook{HookedLevels: logrus.AllLevels}247		logger.AddHook(hook)248		c := configFromHTTPMultiBin(tb)249		err := c.StreamLogsToLogger(ctx, logger, "ref_id", 0)250		require.NoError(t, err)251		assert.Equal(t, []string{"logline1", "logline2"}, logLines(hook))252	})253	t.Run("RestoreConnFromLatestMessage", func(t *testing.T) {254		t.Parallel()255		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)256		defer cancel()257		startFilter := func(u url.URL) (start time.Time, err error) {258			rawstart, err := strconv.ParseInt(u.Query().Get("start"), 10, 64)259			if err != nil {260				return start, err261			}262			start = time.Unix(0, rawstart)263			return264		}265		var requestsCount uint64266		tb := httpmultibin.NewHTTPMultiBin(t)267		logtailHandleFunc(tb, func(conn *websocket.Conn, req *http.Request) {268			requests := atomic.AddUint64(&requestsCount, 1)269			start, err := startFilter(*req.URL)270			require.NoError(t, err)271			if requests <= 1 {272				t0 := time.Date(2021, time.July, 27, 0, 0, 0, 0, time.UTC).UnixNano()273				t1 := time.Date(2021, time.July, 27, 1, 0, 0, 0, time.UTC).UnixNano()274				t2 := time.Date(2021, time.July, 27, 2, 0, 0, 0, time.UTC).UnixNano()275				// send a correct logline so we will able to assert276				// that the connection is restored from t2 as expected277				rawmsg := json.RawMessage(fmt.Sprintf(`{"streams":[{"stream":{"key":"stream1","level":"warn"},"values":[["%d","newest logline"],["%d","second logline"],["%d","oldest logline"]]}],"dropped_entities":[]}`, t2, t1, t0))278				err = conn.WriteJSON(rawmsg)279				require.NoError(t, err)280				// wait the flush of the message on the network281				time.Sleep(20 * time.Millisecond)282				// it generates a failure closing the connection283				// in a rude way284				err = conn.Close()285				require.NoError(t, err)286				return287			}288			// assert that the client created the request with `start`289			// populated from the most recent seen value (t2+1ns)290			require.Equal(t, time.Unix(0, 1627351200000000001), start)291			// send a correct logline so we will able to assert292			// that the connection is restored as expected293			err = conn.WriteJSON(json.RawMessage(generateLogline("stream3", 1627358400000000000, "logline-after-restored-conn")))294			require.NoError(t, err)295			// wait the flush of the message on the network296			time.Sleep(20 * time.Millisecond)297			cancel()298		})299		logger := logrus.New()300		logger.Out = ioutil.Discard301		hook := &testutils.SimpleLogrusHook{HookedLevels: logrus.AllLevels}302		logger.AddHook(hook)303		c := configFromHTTPMultiBin(tb)304		err := c.StreamLogsToLogger(ctx, logger, "ref_id", 0)305		require.NoError(t, err)306		assert.Equal(t,307			[]string{308				"newest logline",309				"second logline",310				"oldest logline",311				"error reading a log message from the cloud, trying to establish a fresh connection with the logs service...",312				"logline-after-restored-conn",313			}, logLines(hook))314	})315	t.Run("RestoreConnFromTimeNow", func(t *testing.T) {316		t.Parallel()317		ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)318		defer cancel()319		startFilter := func(u url.URL) (start time.Time, err error) {320			rawstart, err := strconv.ParseInt(u.Query().Get("start"), 10, 64)321			if err != nil {322				return start, err323			}324			start = time.Unix(0, rawstart)325			return326		}327		var requestsCount uint64328		t0 := time.Now()329		tb := httpmultibin.NewHTTPMultiBin(t)330		logtailHandleFunc(tb, func(conn *websocket.Conn, req *http.Request) {331			requests := atomic.AddUint64(&requestsCount, 1)332			start, err := startFilter(*req.URL)333			require.NoError(t, err)334			if requests <= 1 {335				// if it's the first attempt then336				// it generates a failure closing the connection337				// in a rude way338				err = conn.Close()339				require.NoError(t, err)340				return341			}342			// it asserts that the second attempt343			// has a `start` after the test run344			require.True(t, start.After(t0))345			// send a correct logline so we will able to assert346			// that the connection is restored as expected347			err = conn.WriteJSON(json.RawMessage(`{"streams":[{"stream":{"key":"stream1","level":"warn"},"values":[["1598282752000000000","logline-after-restored-conn"]]}],"dropped_entities":[]}`))348			require.NoError(t, err)349			// wait the flush of the message on the network350			time.Sleep(20 * time.Millisecond)351			cancel()352		})353		logger := logrus.New()354		logger.Out = ioutil.Discard355		hook := &testutils.SimpleLogrusHook{HookedLevels: logrus.AllLevels}356		logger.AddHook(hook)357		c := configFromHTTPMultiBin(tb)358		err := c.StreamLogsToLogger(ctx, logger, "ref_id", 0)359		require.NoError(t, err)360		assert.Equal(t,361			[]string{362				"error reading a log message from the cloud, trying to establish a fresh connection with the logs service...",363				"logline-after-restored-conn",364			}, logLines(hook))365	})366}...

httpmultibin.go

Source:httpmultibin.go

...124			return125		}126	})127}128func writeJSON(w io.Writer, v interface{}) error {129	e := json.NewEncoder(w)130	e.SetIndent("", "  ")131	return errors.Wrap(e.Encode(v), "failed to encode JSON")132}133func getEncodedHandler(t testing.TB, compressionType httpext.CompressionType) http.Handler {134	return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {135		var (136			encoding string137			err      error138			encw     io.WriteCloser139		)140		switch compressionType {141		case httpext.CompressionTypeBr:142			encw = brotli.NewWriter(rw)143			encoding = "br"144		case httpext.CompressionTypeZstd:145			encw, _ = zstd.NewWriter(rw)146			encoding = "zstd"147		}148		rw.Header().Set("Content-Type", "application/json")149		rw.Header().Add("Content-Encoding", encoding)150		data := jsonBody{151			Header:      req.Header,152			Compression: encoding,153		}154		err = writeJSON(encw, data)155		if encw != nil {156			_ = encw.Close()157		}158		if !assert.NoError(t, err) {159			return160		}161	})162}163func getZstdBrHandler(t testing.TB) http.Handler {164	return http.HandlerFunc(func(rw http.ResponseWriter, req *http.Request) {165		encoding := "zstd, br"166		rw.Header().Set("Content-Type", "application/json")167		rw.Header().Add("Content-Encoding", encoding)168		data := jsonBody{169			Header:      req.Header,170			Compression: encoding,171		}172		bw := brotli.NewWriter(rw)173		zw, _ := zstd.NewWriter(bw)174		defer func() {175			_ = zw.Close()176			_ = bw.Close()177		}()178		require.NoError(t, writeJSON(zw, data))179	})180}181// NewHTTPMultiBin returns a fully configured and running HTTPMultiBin182func NewHTTPMultiBin(t testing.TB) *HTTPMultiBin {183	// Create a http.ServeMux and set the httpbin handler as the default184	mux := http.NewServeMux()185	mux.Handle("/brotli", getEncodedHandler(t, httpext.CompressionTypeBr))186	mux.Handle("/ws-echo", getWebsocketHandler(true, false))187	mux.Handle("/ws-echo-invalid", getWebsocketHandler(true, true))188	mux.Handle("/ws-close", getWebsocketHandler(false, false))189	mux.Handle("/ws-close-invalid", getWebsocketHandler(false, true))190	mux.Handle("/zstd", getEncodedHandler(t, httpext.CompressionTypeZstd))191	mux.Handle("/zstd-br", getZstdBrHandler(t))192	mux.Handle("/", httpbin.New().Handler())...

writeJSON

Using AI Code Generation

1import (2func TestServer(t *testing.T) {3	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {4		fmt.Fprintln(w, "Hello, client")5	}))6	defer ts.Close()7}8func TestWriteJSON(t *testing.T) {9	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {10		httpmultibin.WriteJSON(w, map[string]string{"hello": "world"})11	}))12	defer ts.Close()13}14import (15func TestServer(t *testing.T) {16	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {17		fmt.Fprintln(w, "Hello, client")18	}))19	defer ts.Close()20}21func TestWriteJSON(t *testing.T) {22	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {23		httpmultibin.WriteJSON(w, map[string]string{"hello": "world"})24	}))25	defer ts.Close()26}27import (28func TestServer(t *testing.T) {29	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {30		fmt.Fprintln(w, "Hello, client")31	}))32	defer ts.Close()33}34func TestWriteJSON(t *testing.T) {35	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {36		httpmultibin.WriteJSON(w, map[string]string{"hello": "world"})37	}))38	defer ts.Close()39}40import (41func TestServer(t *testing.T) {42	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {

writeJSON

Using AI Code Generation

1import (2func main() {3	client := http.Client{4	}5	if err != nil {6		fmt.Println(err)7	}8	fmt.Println(resp)9}10import (11func main() {12	client := http.Client{13	}14	if err != nil {15		fmt.Println(err)16	}17	fmt.Println(resp)18}19import (20func main() {21	client := http.Client{22	}23	if err != nil {24		fmt.Println(err)25	}26	fmt.Println(resp)27}28import (29func main() {30	client := http.Client{31	}32	if err != nil {33		fmt.Println(err)34	}35	fmt.Println(resp)36}37import (38func main() {39	client := http.Client{40	}41	if err != nil {42		fmt.Println(err)43	}44	fmt.Println(resp)45}46import (47func main() {48	client := http.Client{49	}

writeJSON

Using AI Code Generation

1import (2func TestWriteJSON(t *testing.T) {3        mux := http.NewServeMux()4        mux.HandleFunc("/writeJSON", func(w http.ResponseWriter, r *http.Request) {5                httpmultibin.WriteJSON(w, map[string]string{"hello": "world"})6        })7        server := httptest.NewServer(mux)8        defer server.Close()9        resp, err := http.Get(server.URL + "/writeJSON")10        if err != nil {11                t.Fatal(err)12        }13        defer resp.Body.Close()14        if resp.StatusCode != http.StatusOK {15                t.Errorf("expected status OK; got %

writeJSON

Using AI Code Generation

1import (2func main() {3	http2Server = &http2.Server{4	}5	mux := http.NewServeMux()6	mux.Handle("/writeJSON", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {7		w.Write([]byte(`{"foo": "bar"}`))8	}))9	mux.Handle("/writeJSON2", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {10		w.Write([]byte(`{"foo": "bar"}`))11	}))12	mux.Handle("/writeJSON3", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {13		w.Write([]byte(`{"foo": "bar"}`))14	}))15	mux.Handle("/writeJSON4", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {16		w.Write([]byte(`{"foo": "bar"}`))17	}))18	mux.Handle("/writeJSON5", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {19		w.Write([]byte(`{"foo": "bar"}`))20	}))21	mux.Handle("/writeJSON6", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {22		w.Write([]byte(`{"foo": "bar"}`))23	}))24	mux.Handle("/writeJSON7", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {25		w.Write([]byte(`{"foo": "bar"}`))26	}))27	mux.Handle("/writeJSON8", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {28		w.Write([]byte(`{"foo": "bar"}`))29	}))30	mux.Handle("/writeJSON9", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {31		w.Write([]byte(`{"foo": "bar"}`))32	}))33	mux.Handle("/writeJSON10", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {

writeJSON

Using AI Code Generation

1import (2func main() {3	httpmultibin := &httpmultibin{}4	httpmultibin.writeJSON()5}6type httpmultibin struct{}7func (httpmultibin *httpmultibin) writeJSON() {8	client := &http.Client{}9	if err != nil {10		fmt.Println(err)11	}12	req.Header.Add("Content-Type", "application/json")13	resp, err := client.Do(req)14	if err != nil {15		fmt.Println(err)16	}17	respBody, err := ioutil.ReadAll(resp.Body)18	if err != nil {19		fmt.Println(err)20	}21	fmt.Println(string(respBody))22	resp.Body.Close()23}24import (25func main() {26	httpmultibin := &httpmultibin{}27	httpmultibin.writeJSON()28}29type httpmultibin struct{}30func (httpmultibin *httpmultibin) writeJSON() {31	client := &http.Client{}32	if err != nil {33		fmt.Println(err)34	}35	req.Header.Add("Content-Type", "application/json")36	resp, err := client.Do(req)37	if err != nil {38		fmt.Println(err)39	}40	respBody, err := ioutil.ReadAll(resp.Body)41	if err != nil {42		fmt.Println(err)43	}44	fmt.Println(string(respBody))45	resp.Body.Close()46}

writeJSON

Using AI Code Generation

1import (2type httpmultibin struct {3}4func (h *httpmultibin) writeJSON(w http.ResponseWriter, r *http.Request) {5	w.Header().Set("Content-Type", "application/json")6	w.Write([]byte(`{"id":1,"name":"John"}`))7}8func (h *httpmultibin) readJSON(w http.ResponseWriter, r *http.Request) {9	fmt.Println(r.Body)10}11func (h *httpmultibin) get(w http.ResponseWriter, r *http.Request) {12	fmt.Println("get method")13}14func main() {15	mux := http.NewServeMux()16	h := &httpmultibin{}17	mux.HandleFunc("/json", h.writeJSON)18	mux.HandleFunc("/read", h.readJSON)19	mux.HandleFunc("/get", h.get)20	http.ListenAndServe(":8080", mux)21}22{1 John}

writeJSON

Using AI Code Generation

1import (2func main() {3    h := httpmultibin.New("localhost:8080")4    ts := httptest.NewServer(h)5    h.WriteJSON(ts.URL, "hello", map[string]string{6    })7    resp, err := http.Get(ts.URL)8    if err != nil {9        fmt.Println(err)10    }11    fmt.Println(resp)12}13{200 OK 200 HTTP/1.1 1 1 map[Content-Type:[appli

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.