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K6
core
getMetricCount

How to use getMetricCount method of core Package

Best K6 code snippet using core.getMetricCount

engine_test.go

Source:engine_test.go

...432		}433	}434	return435}436func getMetricCount(collector *dummy.Collector, name string) (result uint) {437	for _, sc := range collector.SampleContainers {438		for _, s := range sc.GetSamples() {439			if s.Metric.Name == name {440				result++441			}442		}443	}444	return445}446const expectedHeaderMaxLength = 500447func TestSentReceivedMetrics(t *testing.T) {448	t.Parallel()449	tb := testutils.NewHTTPMultiBin(t)450	defer tb.Cleanup()451	tr := tb.Replacer.Replace452	type testScript struct {453		Code                 string454		NumRequests          int64455		ExpectedDataSent     int64456		ExpectedDataReceived int64457	}458	testScripts := []testScript{459		{tr(`import http from "k6/http";460			export default function() {461				http.get("HTTPBIN_URL/bytes/15000");462			}`), 1, 0, 15000},463		{tr(`import http from "k6/http";464			export default function() {465				http.get("HTTPBIN_URL/bytes/5000");466				http.get("HTTPSBIN_URL/bytes/5000");467				http.batch(["HTTPBIN_URL/bytes/10000", "HTTPBIN_URL/bytes/20000", "HTTPSBIN_URL/bytes/10000"]);468			}`), 5, 0, 50000},469		{tr(`import http from "k6/http";470			let data = "0123456789".repeat(100);471			export default function() {472				http.post("HTTPBIN_URL/ip", {473					file: http.file(data, "test.txt")474				});475			}`), 1, 1000, 100},476		{tr(`import ws from "k6/ws";477			let data = "0123456789".repeat(100);478			export default function() {479				ws.connect("ws://HTTPBIN_IP:HTTPBIN_PORT/ws-echo", null, function (socket) {480					socket.on('open', function open() {481						socket.send(data);482					});483					socket.on('message', function (message) {484						socket.close();485					});486				});487			}`), 2, 1000, 1000},488	}489	type testCase struct{ Iterations, VUs int64 }490	testCases := []testCase{491		{1, 1}, {1, 2}, {2, 1}, {5, 2}, {25, 2}, {50, 5},492	}493	runTest := func(t *testing.T, ts testScript, tc testCase, noConnReuse bool) (float64, float64) {494		r, err := js.New(495			&lib.SourceData{Filename: "/script.js", Data: []byte(ts.Code)},496			afero.NewMemMapFs(),497			lib.RuntimeOptions{},498		)499		require.NoError(t, err)500		options := lib.Options{501			Iterations:            null.IntFrom(tc.Iterations),502			VUs:                   null.IntFrom(tc.VUs),503			VUsMax:                null.IntFrom(tc.VUs),504			Hosts:                 tb.Dialer.Hosts,505			InsecureSkipTLSVerify: null.BoolFrom(true),506			NoVUConnectionReuse:   null.BoolFrom(noConnReuse),507		}508		r.SetOptions(options)509		engine, err := NewEngine(local.New(r), options)510		require.NoError(t, err)511		collector := &dummy.Collector{}512		engine.Collectors = []lib.Collector{collector}513		ctx, cancel := context.WithCancel(context.Background())514		errC := make(chan error)515		go func() { errC <- engine.Run(ctx) }()516		select {517		case <-time.After(10 * time.Second):518			cancel()519			t.Fatal("Test timed out")520		case err := <-errC:521			cancel()522			require.NoError(t, err)523		}524		checkData := func(name string, expected int64) float64 {525			data := getMetricSum(collector, name)526			expectedDataMin := float64(expected * tc.Iterations)527			expectedDataMax := float64((expected + ts.NumRequests*expectedHeaderMaxLength) * tc.Iterations)528			if data < expectedDataMin || data > expectedDataMax {529				t.Errorf(530					"The %s sum should be in the interval [%f, %f] but was %f",531					name, expectedDataMin, expectedDataMax, data,532				)533			}534			return data535		}536		return checkData(metrics.DataSent.Name, ts.ExpectedDataSent),537			checkData(metrics.DataReceived.Name, ts.ExpectedDataReceived)538	}539	getTestCase := func(t *testing.T, ts testScript, tc testCase) func(t *testing.T) {540		return func(t *testing.T) {541			t.Parallel()542			noReuseSent, noReuseReceived := runTest(t, ts, tc, true)543			reuseSent, reuseReceived := runTest(t, ts, tc, false)544			if noReuseSent < reuseSent {545				t.Errorf("noReuseSent=%f is greater than reuseSent=%f", noReuseSent, reuseSent)546			}547			if noReuseReceived < reuseReceived {548				t.Errorf("noReuseReceived=%f is greater than reuseReceived=%f", noReuseReceived, reuseReceived)549			}550		}551	}552	// This Run will not return until the parallel subtests complete.553	t.Run("group", func(t *testing.T) {554		for tsNum, ts := range testScripts {555			for tcNum, tc := range testCases {556				t.Run(557					fmt.Sprintf("SentReceivedMetrics_script[%d]_case[%d](%d,%d)", tsNum, tcNum, tc.Iterations, tc.VUs),558					getTestCase(t, ts, tc),559				)560			}561		}562	})563}564func TestRunTags(t *testing.T) {565	t.Parallel()566	tb := testutils.NewHTTPMultiBin(t)567	defer tb.Cleanup()568	runTagsMap := map[string]string{"foo": "bar", "test": "mest", "over": "written"}569	runTags := stats.NewSampleTags(runTagsMap)570	script := []byte(tb.Replacer.Replace(`571		import http from "k6/http";572		import ws from "k6/ws";573		import { Counter } from "k6/metrics";574		import { group, check, fail } from "k6";575		let customTags =  { "over": "the rainbow" };576		let params = { "tags": customTags};577		let statusCheck = { "status is 200": (r) => r.status === 200 }578		let myCounter = new Counter("mycounter");579		export default function() {580			group("http", function() {581				check(http.get("HTTPSBIN_URL", params), statusCheck, customTags);582				check(http.get("HTTPBIN_URL/status/418", params), statusCheck, customTags);583			})584			group("websockets", function() {585				var response = ws.connect("wss://HTTPSBIN_IP:HTTPSBIN_PORT/ws-echo", params, function (socket) {586					socket.on('open', function open() {587						console.log('ws open and say hello');588						socket.send("hello");589					});590					socket.on('message', function (message) {591						console.log('ws got message ' + message);592						if (message != "hello") {593							fail("Expected to receive 'hello' but got '" + message + "' instead !");594						}595						console.log('ws closing socket...');596						socket.close();597					});598					socket.on('close', function () {599						console.log('ws close');600					});601					socket.on('error', function (e) {602						console.log('ws error: ' + e.error());603					});604				});605				console.log('connect returned');606				check(response, { "status is 101": (r) => r && r.status === 101 }, customTags);607			})608			myCounter.add(1, customTags);609		}610	`))611	r, err := js.New(612		&lib.SourceData{Filename: "/script.js", Data: script},613		afero.NewMemMapFs(),614		lib.RuntimeOptions{},615	)616	require.NoError(t, err)617	options := lib.Options{618		Iterations:            null.IntFrom(3),619		VUs:                   null.IntFrom(2),620		VUsMax:                null.IntFrom(2),621		Hosts:                 tb.Dialer.Hosts,622		RunTags:               runTags,623		SystemTags:            lib.GetTagSet(lib.DefaultSystemTagList...),624		InsecureSkipTLSVerify: null.BoolFrom(true),625	}626	r.SetOptions(options)627	engine, err := NewEngine(local.New(r), options)628	require.NoError(t, err)629	collector := &dummy.Collector{}630	engine.Collectors = []lib.Collector{collector}631	ctx, cancel := context.WithCancel(context.Background())632	errC := make(chan error)633	go func() { errC <- engine.Run(ctx) }()634	select {635	case <-time.After(10 * time.Second):636		cancel()637		t.Fatal("Test timed out")638	case err := <-errC:639		cancel()640		require.NoError(t, err)641	}642	systemMetrics := []*stats.Metric{643		metrics.VUs, metrics.VUsMax, metrics.Iterations, metrics.IterationDuration,644		metrics.GroupDuration, metrics.DataSent, metrics.DataReceived,645	}646	getExpectedOverVal := func(metricName string) string {647		for _, sysMetric := range systemMetrics {648			if sysMetric.Name == metricName {649				return runTagsMap["over"]650			}651		}652		return "the rainbow"653	}654	for _, s := range collector.Samples {655		for key, expVal := range runTagsMap {656			val, ok := s.Tags.Get(key)657			if key == "over" {658				expVal = getExpectedOverVal(s.Metric.Name)659			}660			assert.True(t, ok)661			assert.Equalf(t, expVal, val, "Wrong tag value in sample for metric %#v", s.Metric)662		}663	}664}665func TestSetupTeardownThresholds(t *testing.T) {666	t.Parallel()667	tb := testutils.NewHTTPMultiBin(t)668	defer tb.Cleanup()669	script := []byte(tb.Replacer.Replace(`670		import http from "k6/http";671		import { check } from "k6";672		import { Counter } from "k6/metrics";673		let statusCheck = { "status is 200": (r) => r.status === 200 }674		let myCounter = new Counter("setup_teardown");675		export let options = {676			iterations: 5,677			thresholds: {678				"setup_teardown": ["count == 2"],679				"iterations": ["count == 5"],680				"http_reqs": ["count == 7"],681			},682		};683		export function setup() {684			check(http.get("HTTPBIN_IP_URL"), statusCheck) && myCounter.add(1);685		};686		export default function () {687			check(http.get("HTTPBIN_IP_URL"), statusCheck);688		};689		export function teardown() {690			check(http.get("HTTPBIN_IP_URL"), statusCheck) && myCounter.add(1);691		};692	`))693	runner, err := js.New(694		&lib.SourceData{Filename: "/script.js", Data: script},695		afero.NewMemMapFs(),696		lib.RuntimeOptions{},697	)698	require.NoError(t, err)699	runner.SetOptions(runner.GetOptions().Apply(lib.Options{700		SystemTags:      lib.GetTagSet(lib.DefaultSystemTagList...),701		SetupTimeout:    types.NullDurationFrom(3 * time.Second),702		TeardownTimeout: types.NullDurationFrom(3 * time.Second),703		VUs:             null.IntFrom(3),704		VUsMax:          null.IntFrom(3),705	}))706	engine, err := NewEngine(local.New(runner), runner.GetOptions())707	require.NoError(t, err)708	ctx, cancel := context.WithCancel(context.Background())709	errC := make(chan error)710	go func() { errC <- engine.Run(ctx) }()711	select {712	case <-time.After(10 * time.Second):713		cancel()714		t.Fatal("Test timed out")715	case err := <-errC:716		cancel()717		require.NoError(t, err)718		require.False(t, engine.IsTainted())719	}720}721func TestEmittedMetricsWhenScalingDown(t *testing.T) {722	t.Parallel()723	tb := testutils.NewHTTPMultiBin(t)724	defer tb.Cleanup()725	script := []byte(tb.Replacer.Replace(`726		import http from "k6/http";727		import { sleep } from "k6";728		export let options = {729			systemTags: ["iter", "vu", "url"],730			// Start with 2 VUs for 4 seconds and then quickly scale down to 1 for the next 4s and then quit731			vus: 2,732			vusMax: 2,733			stages: [734				{ duration: "4s", target: 2 },735				{ duration: "1s", target: 1 },736				{ duration: "3s", target: 1 },737			],738		};739		export default function () {740			console.log("VU " + __VU + " starting iteration #" + __ITER);741			http.get("HTTPBIN_IP_URL/bytes/15000");742			sleep(3.1);743			http.get("HTTPBIN_IP_URL/bytes/15000");744			console.log("VU " + __VU + " ending iteration #" + __ITER);745		};746	`))747	runner, err := js.New(748		&lib.SourceData{Filename: "/script.js", Data: script},749		afero.NewMemMapFs(),750		lib.RuntimeOptions{},751	)752	require.NoError(t, err)753	engine, err := NewEngine(local.New(runner), runner.GetOptions())754	require.NoError(t, err)755	collector := &dummy.Collector{}756	engine.Collectors = []lib.Collector{collector}757	ctx, cancel := context.WithCancel(context.Background())758	errC := make(chan error)759	go func() { errC <- engine.Run(ctx) }()760	select {761	case <-time.After(10 * time.Second):762		cancel()763		t.Fatal("Test timed out")764	case err := <-errC:765		cancel()766		require.NoError(t, err)767		require.False(t, engine.IsTainted())768	}769	// The 1.7 sleep in the default function would cause the first VU to comlete 2 full iterations770	// and stat executing its third one, while the second VU will only fully complete 1 iteration771	// and will be canceled in the middle of its second one.772	assert.Equal(t, 3.0, getMetricSum(collector, metrics.Iterations.Name))773	// That means that we expect to see 8 HTTP requests in total, 3*2=6 from the complete iterations774	// and one each from the two iterations that would be canceled in the middle of their execution775	assert.Equal(t, 8.0, getMetricSum(collector, metrics.HTTPReqs.Name))776	// But we expect to only see the data_received for only 7 of those requests. The data for the 8th777	// request (the 3rd one in the first VU before the test ends) gets cut off by the engine because778	// it's emitted after the test officially ends779	dataReceivedExpectedMin := 15000.0 * 7780	dataReceivedExpectedMax := (15000.0 + expectedHeaderMaxLength) * 7781	dataReceivedActual := getMetricSum(collector, metrics.DataReceived.Name)782	if dataReceivedActual < dataReceivedExpectedMin || dataReceivedActual > dataReceivedExpectedMax {783		t.Errorf(784			"The data_received sum should be in the interval [%f, %f] but was %f",785			dataReceivedExpectedMin, dataReceivedExpectedMax, dataReceivedActual,786		)787	}788	// Also, the interrupted iterations shouldn't affect the average iteration_duration in any way, only789	// complete iterations should be taken into account790	durationCount := float64(getMetricCount(collector, metrics.IterationDuration.Name))791	assert.Equal(t, 3.0, durationCount)792	durationSum := getMetricSum(collector, metrics.IterationDuration.Name)793	assert.InDelta(t, 3.35, durationSum/(1000*durationCount), 0.25)794}795func TestMinIterationDuration(t *testing.T) {796	t.Parallel()797	runner, err := js.New(798		&lib.SourceData{Filename: "/script.js", Data: []byte(`799		import { Counter } from "k6/metrics";800		let testCounter = new Counter("testcounter");801		export let options = {802			minIterationDuration: "1s",803			vus: 2,804			vusMax: 2,...

metrics.go

Source:metrics.go

...28}29// WithMetricCount is an option to get the histogram/summary count as metric value.30func WithMetricCount() MetricsOption {31	return func(o *metricsOptions) {32		o.getValue = getMetricCount33	}34}35// WithLabelMatchers is an option to filter only matching series.36func WithLabelMatchers(matchers ...*matchers.Matcher) MetricsOption {37	return func(o *metricsOptions) {38		o.labelMatchers = matchers39	}40}41// WaitMissingMetrics is an option to wait whenever an expected metric is missing. If this42// option is not enabled, will return error on missing metrics.43func WaitMissingMetrics() MetricsOption {44	return func(o *metricsOptions) {45		o.waitMissingMetrics = true46	}47}48// SkipMissingMetrics is an option to skip/ignore whenever an expected metric is missing.49func SkipMissingMetrics() MetricsOption {50	return func(o *metricsOptions) {51		o.skipMissingMetrics = true52	}53}54func buildMetricsOptions(opts []MetricsOption) metricsOptions {55	result := metricsOptions{56		getValue: getMetricValue,57		waitBackoff: &backoff.Config{58			Min:        300 * time.Millisecond,59			Max:        600 * time.Millisecond,60			MaxRetries: 50,61		},62	}63	for _, opt := range opts {64		opt(&result)65	}66	return result67}68func getMetricValue(m *io_prometheus_client.Metric) float64 {69	if m.GetGauge() != nil {70		return m.GetGauge().GetValue()71	} else if m.GetCounter() != nil {72		return m.GetCounter().GetValue()73	} else if m.GetHistogram() != nil {74		return m.GetHistogram().GetSampleSum()75	} else if m.GetSummary() != nil {76		return m.GetSummary().GetSampleSum()77	} else {78		return 079	}80}81func getMetricCount(m *io_prometheus_client.Metric) float64 {82	if m.GetHistogram() != nil {83		return float64(m.GetHistogram().GetSampleCount())84	} else if m.GetSummary() != nil {85		return float64(m.GetSummary().GetSampleCount())86	} else {87		return 088	}89}90func getValues(metrics []*io_prometheus_client.Metric, opts metricsOptions) []float64 {91	values := make([]float64, 0, len(metrics))92	for _, m := range metrics {93		values = append(values, opts.getValue(m))94	}95	return values...

engine.go

Source:engine.go

1package aggregator2import (3	"os"4	"github.com/rs/zerolog"5)6var logger zerolog.Logger = zerolog.New(os.Stderr).With().7	Str("source", "ENG").8	Timestamp().9	Logger()10// Engine is the core calculcation engine for counting11type Engine struct {12	Nsm *NamespaceManager13}14// NewEngine creates a new engine15func NewEngine(nsm *NamespaceManager) Engine {16	e := Engine{Nsm: nsm}17	return e18}19// HandleRawEvent is the handler for any event. It checks whether the event is defined in config20// and updates the relevant metrics21func (e Engine) HandleRawEvent(rawEvent map[string]interface{}, namespace string) error {22	// Event must have an id to identify what event it is23	id, idExists := rawEvent["id"]24	if !idExists {25		return &InvalidEventIDError{}26	}27	// Id must be an int28	idTyped, isInt := id.(int)29	if !isInt {30		return &InvalidEventIDError{}31	}32	// Get the config for the event33	// TODO Add RW lock for events34	eventConfig, configExists := e.Nsm.EventConfigsByNamespace[namespace][idTyped]35	if !configExists {36		return &EventConfigNotFoundError{}37	}38	// Validate against the config39	event, err := eventConfig.validate(rawEvent)40	if err != nil {41		return err42	}43	// Check namespace44	e.Nsm.NsDataLck.RLock()45	defer e.Nsm.NsDataLck.RUnlock()46	if _, nsExists := e.Nsm.ActiveNamespaces[namespace]; !nsExists {47		return &NamespaceNotFoundError{}48	}49	res := e.handleEvent(*event, namespace)50	return res51}52func (e Engine) handleEvent(event event, namespace string) error {53	e.Nsm.namespaceRLock(namespace)54	defer e.Nsm.namespaceRUnlock(namespace)55	// Get the metric configs for this event56	metricConfigs := e.getMetricConfigs(event, namespace)57	if len(metricConfigs) == 0 {58		return &NoMetricsFoundError{}59	}60	// Handle this event for each of these metric configs61	for _, metricConfig := range metricConfigs {62		_, isNew := metricConfig.handleEvent(event, namespace)63		if isNew {64			e.Nsm.IncrementNumKeys(namespace, metricConfig.ID)65		}66	}67	return nil68}69func (e Engine) getMetricConfigs(event event, namespace string) []*metricConfig {70	configs := []*metricConfig{}71	e.Nsm.NsDataLck.RLock()72	// Get all configs in the specified namespace73	// Check if namespace active on this node74	if _, exists := e.Nsm.ActiveNamespaces[namespace]; exists {75		specificNamespace, namespaceExists := e.Nsm.EventToMetricMap[namespace]76		if namespaceExists {77			namespaceConfigs, namespaceConfigsExist := specificNamespace[event.ID]78			if namespaceConfigsExist {79				configs = append(configs, namespaceConfigs...)80			}81		}82	}83	e.Nsm.NsDataLck.RUnlock()84	return configs85}86// GetMetricCount gets the value for a given metric87func (e Engine) GetMetricCount(ns string, metricKey int, metricID int) MetricCountResult {88	mcs, namespaceExists := e.Nsm.MetricConfigsByNamespace[ns]89	if !namespaceExists {90		return MetricCountResult{91			Err:   &NamespaceNotFoundError{},92			Count: 0,93		}94	}95	mc, mcExists := mcs[metricID]96	if !mcExists {97		return MetricCountResult{98			Err:   &MetricConfigNotFoundError{},99			Count: 0,100		}101	}102	return mc.getCount(metricKey, ns)103}...

getMetricCount

Using AI Code Generation

1import (2func main() {3    urlClient := local.New(coredataUrl)4    coredataClient := coredata.NewCoreDataClient(5        types.EndpointParams{6        },7    count, err := coredataClient.EventCountForDeviceName(deviceName)8    if err != nil {9        fmt.Println(err)10    } else {11        fmt.Println("Count of metrics for device", deviceName, "is", count)12    }13}

getMetricCount

Using AI Code Generation

1import (2func main() {3	metric.Fields = common.MapStr{4		"cluster_uuid": common.MapStr{5		},6		"status": common.MapStr{7		},8		"indices": common.MapStr{9			"count": common.MapStr{10			},11		},12		"nodes": common.MapStr{13			"count": common.MapStr{14			},15		},16	}17	fmt.Println(metric.getMetricCount())18}

getMetricCount

Using AI Code Generation

1import (2func main() {3	core := metricdef.NewCore()4	metricDef := metricdef.New("test", 1, 1, "avg")5	core.Add(metricDef)6	count := core.GetMetricCount()7	fmt.Println("Metric Count: ", count)8	core.Remove(metricDef)9	count = core.GetMetricCount()10	fmt.Println("Metric Count: ", count)11}

getMetricCount

Using AI Code Generation

1import (2func main() {3	fmt.Println(metrics.GetMetricCount())4}5import (6func main() {7	fmt.Println(metrics.GetMetricCount())8	metrics.ResetMetricCount()9	fmt.Println(metrics.GetMetricCount())10	metrics.ResetMetricCount(10)11	fmt.Println(metrics.GetMetricCount())12}13import (14func main() {15	fmt.Println(metrics.GetMetricCount())16}17import (18func main() {19	fmt.Println(metrics.GetMetricCount())20}

getMetricCount

Using AI Code Generation

1import (2func main() {3	var getMetricCountMethodSignature = "func() int"4	getMetricCountMethodPtr = GetMethodPtr(coreClass, getMetricCountMethod, getMetricCountMethodSignature)5	var getMetricCountMethodFunc = *(*func() int)(unsafe.Pointer(getMetricCountMethodPtr))6	metricCount = getMetricCountMethodFunc()7	fmt.Println(metricCount)8}9func GetMethodPtr(class string, method string, methodSignature string) uintptr {10	var classType = reflect.TypeOf(class)11	var methodValue = classType.MethodByName(method)12	var methodSignatureType = reflect.TypeOf(methodSignature)13	if methodType.String() == methodSignatureType.String() {14		var methodPtr = methodValue.Func.Pointer()15	}16}17import (18func main() {19	var getMetricCountMethodSignature = "func() int"20	getMetricCountMethodPtr = GetMethodPtr(coreClass, getMetricCountMethod, getMetricCountMethodSignature)21	var getMetricCountMethodFunc = *(*func() int)(

getMetricCount

Using AI Code Generation

1import (2func main() {3	core := core.NewCore()4	metricCount := core.GetMetricCount()5	fmt.Println(metricCount)6}7import (8func main() {9	core := core.NewCore()10	metricCount := core.GetMetricCount()11	fmt.Println(metricCount)12}13import (14func main() {15	core := core.NewCore()16	metricCount := core.GetMetricCount()17	fmt.Println(metricCount)18}19import (20func main() {21	core := core.NewCore()22	metricCount := core.GetMetricCount()23	fmt.Println(metricCount)24}25import (26func main() {27	core := core.NewCore()28	metricCount := core.GetMetricCount()29	fmt.Println(metricCount)30}31import (32func main() {33	core := core.NewCore()

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