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K6
http
TestResponseCallbackInAction

How to use TestResponseCallbackInAction method of http Package

Best K6 code snippet using http.TestResponseCallbackInAction

response_callback_test.go

Source:response_callback_test.go

...85type expectedSample struct {86	tags    map[string]string87	metrics []string88}89func TestResponseCallbackInAction(t *testing.T) {90	t.Parallel()91	tb, _, samples, rt, mii := newRuntime(t)92	sr := tb.Replacer.Replace93	HTTPMetricsWithoutFailed := []string{94		metrics.HTTPReqsName,95		metrics.HTTPReqBlockedName,96		metrics.HTTPReqConnectingName,97		metrics.HTTPReqDurationName,98		metrics.HTTPReqReceivingName,99		metrics.HTTPReqWaitingName,100		metrics.HTTPReqSendingName,101		metrics.HTTPReqTLSHandshakingName,102	}103	allHTTPMetrics := append(HTTPMetricsWithoutFailed, metrics.HTTPReqFailedName)104	testCases := map[string]struct {105		code            string106		expectedSamples []expectedSample107	}{108		"basic": {109			code: `http.request("GET", "HTTPBIN_URL/redirect/1");`,110			expectedSamples: []expectedSample{111				{112					tags: map[string]string{113						"method":            "GET",114						"url":               sr("HTTPBIN_URL/redirect/1"),115						"name":              sr("HTTPBIN_URL/redirect/1"),116						"status":            "302",117						"group":             "",118						"expected_response": "true",119						"proto":             "HTTP/1.1",120					},121					metrics: allHTTPMetrics,122				},123				{124					tags: map[string]string{125						"method":            "GET",126						"url":               sr("HTTPBIN_URL/get"),127						"name":              sr("HTTPBIN_URL/get"),128						"status":            "200",129						"group":             "",130						"expected_response": "true",131						"proto":             "HTTP/1.1",132					},133					metrics: allHTTPMetrics,134				},135			},136		},137		"overwrite per request": {138			code: `139			http.setResponseCallback(http.expectedStatuses(200));140			res = http.request("GET", "HTTPBIN_URL/redirect/1");141			`,142			expectedSamples: []expectedSample{143				{144					tags: map[string]string{145						"method":            "GET",146						"url":               sr("HTTPBIN_URL/redirect/1"),147						"name":              sr("HTTPBIN_URL/redirect/1"),148						"status":            "302",149						"group":             "",150						"expected_response": "false", // this is on purpose151						"proto":             "HTTP/1.1",152					},153					metrics: allHTTPMetrics,154				},155				{156					tags: map[string]string{157						"method":            "GET",158						"url":               sr("HTTPBIN_URL/get"),159						"name":              sr("HTTPBIN_URL/get"),160						"status":            "200",161						"group":             "",162						"expected_response": "true",163						"proto":             "HTTP/1.1",164					},165					metrics: allHTTPMetrics,166				},167			},168		},169		"global overwrite": {170			code: `http.request("GET", "HTTPBIN_URL/redirect/1", null, {responseCallback: http.expectedStatuses(200)});`,171			expectedSamples: []expectedSample{172				{173					tags: map[string]string{174						"method":            "GET",175						"url":               sr("HTTPBIN_URL/redirect/1"),176						"name":              sr("HTTPBIN_URL/redirect/1"),177						"status":            "302",178						"group":             "",179						"expected_response": "false", // this is on purpose180						"proto":             "HTTP/1.1",181					},182					metrics: allHTTPMetrics,183				},184				{185					tags: map[string]string{186						"method":            "GET",187						"url":               sr("HTTPBIN_URL/get"),188						"name":              sr("HTTPBIN_URL/get"),189						"status":            "200",190						"group":             "",191						"expected_response": "true",192						"proto":             "HTTP/1.1",193					},194					metrics: allHTTPMetrics,195				},196			},197		},198		"per request overwrite with null": {199			code: `http.request("GET", "HTTPBIN_URL/redirect/1", null, {responseCallback: null});`,200			expectedSamples: []expectedSample{201				{202					tags: map[string]string{203						"method": "GET",204						"url":    sr("HTTPBIN_URL/redirect/1"),205						"name":   sr("HTTPBIN_URL/redirect/1"),206						"status": "302",207						"group":  "",208						"proto":  "HTTP/1.1",209					},210					metrics: HTTPMetricsWithoutFailed,211				},212				{213					tags: map[string]string{214						"method": "GET",215						"url":    sr("HTTPBIN_URL/get"),216						"name":   sr("HTTPBIN_URL/get"),217						"status": "200",218						"group":  "",219						"proto":  "HTTP/1.1",220					},221					metrics: HTTPMetricsWithoutFailed,222				},223			},224		},225		"global overwrite with null": {226			code: `227			http.setResponseCallback(null);228			res = http.request("GET", "HTTPBIN_URL/redirect/1");229			`,230			expectedSamples: []expectedSample{231				{232					tags: map[string]string{233						"method": "GET",234						"url":    sr("HTTPBIN_URL/redirect/1"),235						"name":   sr("HTTPBIN_URL/redirect/1"),236						"status": "302",237						"group":  "",238						"proto":  "HTTP/1.1",239					},240					metrics: HTTPMetricsWithoutFailed,241				},242				{243					tags: map[string]string{244						"method": "GET",245						"url":    sr("HTTPBIN_URL/get"),246						"name":   sr("HTTPBIN_URL/get"),247						"status": "200",248						"group":  "",249						"proto":  "HTTP/1.1",250					},251					metrics: HTTPMetricsWithoutFailed,252				},253			},254		},255	}256	for name, testCase := range testCases {257		testCase := testCase258		t.Run(name, func(t *testing.T) {259			mii.defaultClient.responseCallback = defaultExpectedStatuses.match260			_, err := rt.RunString(sr(testCase.code))261			assert.NoError(t, err)262			bufSamples := metrics.GetBufferedSamples(samples)263			reqsCount := 0264			for _, container := range bufSamples {265				for _, sample := range container.GetSamples() {266					if sample.Metric.Name == "http_reqs" {267						reqsCount++268					}269				}270			}271			require.Equal(t, len(testCase.expectedSamples), reqsCount)272			for i, expectedSample := range testCase.expectedSamples {273				assertRequestMetricsEmittedSingle(t, bufSamples[i], expectedSample.tags, expectedSample.metrics, nil)274			}275		})276	}277}278func TestResponseCallbackBatch(t *testing.T) {279	t.Parallel()280	tb, _, samples, rt, mii := newRuntime(t)281	sr := tb.Replacer.Replace282	HTTPMetricsWithoutFailed := []string{283		metrics.HTTPReqsName,284		metrics.HTTPReqBlockedName,285		metrics.HTTPReqConnectingName,286		metrics.HTTPReqDurationName,287		metrics.HTTPReqReceivingName,288		metrics.HTTPReqWaitingName,289		metrics.HTTPReqSendingName,290		metrics.HTTPReqTLSHandshakingName,291	}292	allHTTPMetrics := append(HTTPMetricsWithoutFailed, metrics.HTTPReqFailedName)293	// IMPORTANT: the tests here depend on the fact that the url they hit can be ordered in the same294	// order as the expectedSamples even if they are made concurrently295	testCases := map[string]struct {296		code            string297		expectedSamples []expectedSample298	}{299		"basic": {300			code: `301	http.batch([["GET", "HTTPBIN_URL/status/200", null, {responseCallback: null}],302			["GET", "HTTPBIN_URL/status/201"],303			["GET", "HTTPBIN_URL/status/202", null, {responseCallback: http.expectedStatuses(4)}],304			["GET", "HTTPBIN_URL/status/405", null, {responseCallback: http.expectedStatuses(405)}],305	]);`,306			expectedSamples: []expectedSample{307				{308					tags: map[string]string{309						"method": "GET",310						"url":    sr("HTTPBIN_URL/status/200"),311						"name":   sr("HTTPBIN_URL/status/200"),312						"status": "200",313						"group":  "",314						"proto":  "HTTP/1.1",315					},316					metrics: HTTPMetricsWithoutFailed,317				},318				{319					tags: map[string]string{320						"method":            "GET",321						"url":               sr("HTTPBIN_URL/status/201"),322						"name":              sr("HTTPBIN_URL/status/201"),323						"status":            "201",324						"group":             "",325						"expected_response": "true",326						"proto":             "HTTP/1.1",327					},328					metrics: allHTTPMetrics,329				},330				{331					tags: map[string]string{332						"method":            "GET",333						"url":               sr("HTTPBIN_URL/status/202"),334						"name":              sr("HTTPBIN_URL/status/202"),335						"status":            "202",336						"group":             "",337						"expected_response": "false",338						"proto":             "HTTP/1.1",339					},340					metrics: allHTTPMetrics,341				},342				{343					tags: map[string]string{344						"method":            "GET",345						"url":               sr("HTTPBIN_URL/status/405"),346						"name":              sr("HTTPBIN_URL/status/405"),347						"status":            "405",348						"error_code":        "1405",349						"group":             "",350						"expected_response": "true",351						"proto":             "HTTP/1.1",352					},353					metrics: allHTTPMetrics,354				},355			},356		},357	}358	for name, testCase := range testCases {359		testCase := testCase360		t.Run(name, func(t *testing.T) {361			mii.defaultClient.responseCallback = defaultExpectedStatuses.match362			_, err := rt.RunString(sr(testCase.code))363			assert.NoError(t, err)364			bufSamples := metrics.GetBufferedSamples(samples)365			reqsCount := 0366			for _, container := range bufSamples {367				for _, sample := range container.GetSamples() {368					if sample.Metric.Name == "http_reqs" {369						reqsCount++370					}371				}372			}373			sort.Slice(bufSamples, func(i, j int) bool {374				iURL, _ := bufSamples[i].GetSamples()[0].Tags.Get("url")375				jURL, _ := bufSamples[j].GetSamples()[0].Tags.Get("url")376				return iURL < jURL377			})378			require.Equal(t, len(testCase.expectedSamples), reqsCount)379			for i, expectedSample := range testCase.expectedSamples {380				assertRequestMetricsEmittedSingle(t, bufSamples[i], expectedSample.tags, expectedSample.metrics, nil)381			}382		})383	}384}385func TestResponseCallbackInActionWithoutPassedTag(t *testing.T) {386	t.Parallel()387	tb, state, samples, rt, _ := newRuntime(t)388	sr := tb.Replacer.Replace389	allHTTPMetrics := []string{390		metrics.HTTPReqsName,391		metrics.HTTPReqFailedName,392		metrics.HTTPReqBlockedName,393		metrics.HTTPReqConnectingName,394		metrics.HTTPReqDurationName,395		metrics.HTTPReqReceivingName,396		metrics.HTTPReqSendingName,397		metrics.HTTPReqWaitingName,398		metrics.HTTPReqTLSHandshakingName,399	}...

TestResponseCallbackInAction

Using AI Code Generation

1import (2func TestResponseCallbackInAction() {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	res, err := http.Get(ts.URL)8	if err != nil {9		panic(err)10	}11	fmt.Println(res.Status)12}13func main() {14	TestResponseCallbackInAction()15}16import (17func TestHttpHandlerUsingResponseRecorder() {18	req, err := http.NewRequest("GET", "/", nil)19	if err != nil {20		panic(err)21	}22	rr := httptest.NewRecorder()23	handler := http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {24		fmt.Fprintln(w, "Hello, client")25	})26	handler.ServeHTTP(rr, req)27	if status := rr.Code;

TestResponseCallbackInAction

Using AI Code Generation

1import (2func main() {3    req, err := http.NewRequest("GET", "/", nil)4    if err != nil {5        fmt.Println(err)6    }7    rr := httptest.NewRecorder()8    handler := http.HandlerFunc(TestResponseCallbackInAction)9    handler.ServeHTTP(rr, req)10    fmt.Println(rr.Body.String())11}12func TestResponseCallbackInAction(w http.ResponseWriter, r *http.Request) {13    w.Write([]byte("Hello World!"))14}

TestResponseCallbackInAction

Using AI Code Generation

1import (2func main() {3    fmt.Println("Hello, playground")4    if err != nil {5        panic(err)6    }7    defer resp.Body.Close()8    fmt.Println(resp)9}10/*&{200 OK 200 HTTP/1.1 1 1 map[Cache-Control:[private, max-age=0] Content-Type:[text/html; charset=ISO-8859-1] Date:[Thu, 06 Dec 2018 17:26:55 GMT] Expires:[-1] P3p:[CP="This is not a P3P policy! See g.co/p3phelp for more info."] Server:[gws] Set-Cookie:[NID=144=Zl7BvY9gj0lJpHfB1Zk1wZgkWZ7cQ2Q2HgT0T9QhYzG1S0RtC0ZtKfZ1k3q4qDd0aYnCpYX1W3qKlJF0nB7vN8QZDj7kG0kRJm7v5bX9WV7P; expires=Fri, 05-Jun-2020 17:26:55 GMT; path=/; domain=.google.com; HttpOnly] X-Frame-Options:[SAMEORIGIN] X-Xss-Protection:[1; mode=block]] 0xc0000b2000 0 [] false false map[] 0xc0000b2000 <nil>}*/11import (12func main() {13    fmt.Println("Hello, playground")14    if err != nil {15        panic(err)16    }17    defer resp.Body.Close()18    fmt.Println(resp)19}20/*&{200 OK 200 HTTP/1.1 1 1 map[Cache-Control:[private, max-age=0] Content-Type:[text/html; charset=ISO-8859

TestResponseCallbackInAction

Using AI Code Generation

1import (2func main() {3	response, err := http.Get(url)4	if err != nil {5		fmt.Print(err.Error())6		os.Exit(1)7	}8	defer response.Body.Close()9	responseData, err := ioutil.ReadAll(response.Body)10	if err != nil {11		log.Fatal(err)12	}13	fmt.Println(string(responseData))14}

TestResponseCallbackInAction

Using AI Code Generation

1func TestResponseCallbackInAction(t *testing.T) {2    client := &http.Client{}3    if err != nil {4        log.Fatal(err)5    }6    req = req.WithContext(http.WithResponseCallback(req.Context(), func(resp *http.Response) {7        fmt.Println("Response received")8    }))9    resp, err := client.Do(req)10    if err != nil {11        log.Fatal(err)12    }13    fmt.Println("Response status:", resp.Status)14    resp.Body.Close()15}16func TestResponseCallbackInHandler(t *testing.T) {17    client := &http.Client{}18    if err != nil {19        log.Fatal(err)20    }21    resp, err := client.Do(req)22    if err != nil {23        log.Fatal(err)24    }25    fmt.Println("Response status:", resp.Status)26    resp.Body.Close()27}28func TestResponseCallbackInTransport(t *testing.T) {29    client := &http.Client{30        Transport: &http.Transport{31            ResponseCallback: func(resp *http.Response) {32                fmt.Println("Response received")33            },34        },35    }36    if err != nil {37        log.Fatal(err)38    }39    resp, err := client.Do(req)40    if err != nil {41        log.Fatal(err)42    }43    fmt.Println("Response status:", resp.Status)44    resp.Body.Close()45}

TestResponseCallbackInAction

Using AI Code Generation

1import (2func main() {3	if err != nil {4		log.Fatal(err)5	}6	defer resp.Body.Close()7	out, err := os.Create("index.html")8	if err != nil {9		log.Fatal(err)10	}11	defer out.Close()12	_, err = io.Copy(out, resp.Body)13	if err != nil {14		log.Fatal(err)15	}16}17How to use the io.Copy() function in Go18How to read a file in Go using ReadAt() method19How to read a file in Go using ReadFull() method20How to read a file in Go using ReadString() method21How to read a file in Go using ReadByte() method22How to read a file in Go using ReadBytes() method23How to read a file in Go using ReadLine() method24How to read a file in Go using ReadRune() method25How to read a file in Go using Read() method26How to read a file in Go using ReadFrom() method27How to read a file in Go using ReadAtLeast() method28How to read a file in Go using ReadDir() method29How to read a file in Go using ReadFile() method30How to read a file in Go using ReadAll() method31How to read a file in Go using ReadCloser() method32How to read a file in Go using ReadSeeker() method33How to read a file in Go using ReadWriter() method34How to read a file in Go using ReadWriterAt() method

TestResponseCallbackInAction

Using AI Code Generation

1import (2func TestResponseCallbackInAction(t *testing.T) {3	req, err := http.NewRequest("GET", "/", nil)4	if err != nil {5		t.Fatal(err)6	}7	rr := httptest.NewRecorder()8	handler := http.HandlerFunc(HelloWorld)9	handler.ServeHTTP(rr, req)10	if status := rr.Code; status != http.StatusOK {11		t.Errorf("handler returned wrong status code: got %v want %v",12	}13	expected := `{"alive": true}`14	if rr.Body.String() != expected {15		t.Errorf("handler returned unexpected body: got %v want %v",16			rr.Body.String(), expected)17	}18}19func HelloWorld(w http.ResponseWriter, r *http.Request) {20	fmt.Fprintf(w, `{"alive": true}`)21}22We can use the httptest.NewRecorder() method to record the response. We can use the http.NewRequest() method to create a request to pass to our handler. We can use the http.HandlerFunc() method to convert the HelloWorld method to a http.HandlerFunc. We can use the handler.ServeHTTP() method to pass in our Request and ResponseRecorder. We can check the

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