How to use newDevNullSampleChannel method of js Package

Best K6 code snippet using js.newDevNullSampleChannel

module_loading_test.go

Source:module_loading_test.go

...28	"github.com/luckybroman5/http-log-reconstructor/k6/stats"29	"github.com/spf13/afero"30	"github.com/stretchr/testify/require"31)32func newDevNullSampleChannel() chan stats.SampleContainer {33	var ch = make(chan stats.SampleContainer, 100)34	go func() {35		for range ch {36		}37	}()38	return ch39}40func TestLoadOnceGlobalVars(t *testing.T) {41	var testCases = map[string]string{42		"module.exports": `43			var globalVar;44			if (!globalVar) {45				globalVar = Math.random();46			}47			function C() {48				return globalVar;49			}50			module.exports = {51				C: C,52			}53		`,54		"direct export": `55			var globalVar;56			if (!globalVar) {57				globalVar = Math.random();58			}59			export function C() {60				return globalVar;61			}62		`,63	}64	for name, data := range testCases {65		cData := data66		t.Run(name, func(t *testing.T) {67			fs := afero.NewMemMapFs()68			require.NoError(t, afero.WriteFile(fs, "/C.js", []byte(cData), os.ModePerm))69			require.NoError(t, afero.WriteFile(fs, "/A.js", []byte(`70		import { C } from "./C.js";71		export function A() {72			return C();73		}74	`), os.ModePerm))75			require.NoError(t, afero.WriteFile(fs, "/B.js", []byte(`76		var  c = require("./C.js");77		export function B() {78			return c.C();79		}80	`), os.ModePerm))81			r1, err := getSimpleRunnerWithFileFs("/script.js", `82			import { A } from "./A.js";83			import { B } from "./B.js";84			export default function(data) {85				if (A() === undefined) {86					throw new Error("A() is undefined");87				}88				if (A() != B()) {89					throw new Error("A() != B()    (" + A() + ") != (" + B() + ")");90				}91			}92		`, fs)93			require.NoError(t, err)94			arc := r1.MakeArchive()95			r2, err := NewFromArchive(arc, lib.RuntimeOptions{})96			require.NoError(t, err)97			runners := map[string]*Runner{"Source": r1, "Archive": r2}98			for name, r := range runners {99				r := r100				t.Run(name, func(t *testing.T) {101					ch := newDevNullSampleChannel()102					defer close(ch)103					vu, err := r.NewVU(ch)104					require.NoError(t, err)105					err = vu.RunOnce(context.Background())106					require.NoError(t, err)107				})108			}109		})110	}111}112func TestLoadExportsIsUsableInModule(t *testing.T) {113	fs := afero.NewMemMapFs()114	require.NoError(t, afero.WriteFile(fs, "/A.js", []byte(`115		export function A() {116			return "A";117		}118		export function B() {119			return exports.A() + "B";120		}121	`), os.ModePerm))122	r1, err := getSimpleRunnerWithFileFs("/script.js", `123			import { A, B } from "./A.js";124			export default function(data) {125				if (A() != "A") {126					throw new Error("wrong value of A() " + A());127				}128				if (B() != "AB") {129					throw new Error("wrong value of B() " + B());130				}131			}132		`, fs)133	require.NoError(t, err)134	arc := r1.MakeArchive()135	r2, err := NewFromArchive(arc, lib.RuntimeOptions{})136	require.NoError(t, err)137	runners := map[string]*Runner{"Source": r1, "Archive": r2}138	for name, r := range runners {139		r := r140		t.Run(name, func(t *testing.T) {141			ch := newDevNullSampleChannel()142			defer close(ch)143			vu, err := r.NewVU(ch)144			require.NoError(t, err)145			err = vu.RunOnce(context.Background())146			require.NoError(t, err)147		})148	}149}150func TestLoadDoesntBreakHTTPGet(t *testing.T) {151	// This test that functions such as http.get which require context still work if they are called152	// inside script that is imported153	tb := httpmultibin.NewHTTPMultiBin(t)154	defer tb.Cleanup()155	fs := afero.NewMemMapFs()156	require.NoError(t, afero.WriteFile(fs, "/A.js", []byte(tb.Replacer.Replace(`157		import http from "k6/http";158		export function A() {159			return http.get("HTTPBIN_URL/get");160		}161	`)), os.ModePerm))162	r1, err := getSimpleRunnerWithFileFs("/script.js", `163			import { A } from "./A.js";164			export default function(data) {165				let resp = A();166				if (resp.status != 200) {167					throw new Error("wrong status "+ resp.status);168				}169			}170		`, fs)171	require.NoError(t, err)172	require.NoError(t, r1.SetOptions(lib.Options{Hosts: tb.Dialer.Hosts}))173	arc := r1.MakeArchive()174	r2, err := NewFromArchive(arc, lib.RuntimeOptions{})175	require.NoError(t, err)176	runners := map[string]*Runner{"Source": r1, "Archive": r2}177	for name, r := range runners {178		r := r179		t.Run(name, func(t *testing.T) {180			ch := newDevNullSampleChannel()181			defer close(ch)182			vu, err := r.NewVU(ch)183			require.NoError(t, err)184			err = vu.RunOnce(context.Background())185			require.NoError(t, err)186		})187	}188}189func TestLoadGlobalVarsAreNotSharedBetweenVUs(t *testing.T) {190	fs := afero.NewMemMapFs()191	require.NoError(t, afero.WriteFile(fs, "/A.js", []byte(`192		var globalVar = 0;193		export function A() {194			globalVar += 1195			return globalVar;196		}197	`), os.ModePerm))198	r1, err := getSimpleRunnerWithFileFs("/script.js", `199			import { A } from "./A.js";200			export default function(data) {201				var a = A();202				if (a == 1) {203					a = 2;204				} else {205					throw new Error("wrong value of a " + a);206				}207			}208		`, fs)209	require.NoError(t, err)210	arc := r1.MakeArchive()211	r2, err := NewFromArchive(arc, lib.RuntimeOptions{})212	require.NoError(t, err)213	runners := map[string]*Runner{"Source": r1, "Archive": r2}214	for name, r := range runners {215		r := r216		t.Run(name, func(t *testing.T) {217			ch := newDevNullSampleChannel()218			defer close(ch)219			vu, err := r.NewVU(ch)220			require.NoError(t, err)221			err = vu.RunOnce(context.Background())222			require.NoError(t, err)223			// run a second VU224			vu, err = r.NewVU(ch)225			require.NoError(t, err)226			err = vu.RunOnce(context.Background())227			require.NoError(t, err)228		})229	}230}231func TestLoadCycle(t *testing.T) {232	// This is mostly the example from https://hacks.mozilla.org/2018/03/es-modules-a-cartoon-deep-dive/233	fs := afero.NewMemMapFs()234	require.NoError(t, afero.WriteFile(fs, "/counter.js", []byte(`235			let message = require("./main.js").message;236			exports.count = 5;237			export function a() {238				return message;239			}240	`), os.ModePerm))241	require.NoError(t, afero.WriteFile(fs, "/main.js", []byte(`242			let counter = require("./counter.js");243			let count = counter.count;244			let a = counter.a;245			let message= "Eval complete";246			exports.message = message;247			export default function() {248				if (count != 5) {249					throw new Error("Wrong value of count "+ count);250				}251				let aMessage = a();252				if (aMessage != message) {253					throw new Error("Wrong value of a() "+ aMessage);254				}255			}256	`), os.ModePerm))257	data, err := afero.ReadFile(fs, "/main.js")258	require.NoError(t, err)259	r1, err := getSimpleRunnerWithFileFs("/main.js", string(data), fs)260	require.NoError(t, err)261	arc := r1.MakeArchive()262	r2, err := NewFromArchive(arc, lib.RuntimeOptions{})263	require.NoError(t, err)264	runners := map[string]*Runner{"Source": r1, "Archive": r2}265	for name, r := range runners {266		r := r267		t.Run(name, func(t *testing.T) {268			ch := newDevNullSampleChannel()269			defer close(ch)270			vu, err := r.NewVU(ch)271			require.NoError(t, err)272			err = vu.RunOnce(context.Background())273			require.NoError(t, err)274		})275	}276}277func TestLoadCycleBinding(t *testing.T) {278	// This is mostly the example from279	// http://2ality.com/2015/07/es6-module-exports.html#why-export-bindings280	fs := afero.NewMemMapFs()281	require.NoError(t, afero.WriteFile(fs, "/a.js", []byte(`282		import {bar} from './b.js';283		export function foo(a) {284				if (a !== undefined) {285					return "foo" + a;286				}287				return "foo" + bar(3);288		}289	`), os.ModePerm))290	require.NoError(t, afero.WriteFile(fs, "/b.js", []byte(`291		import {foo} from './a.js';292		export function bar(a) {293				if (a !== undefined) {294					return "bar" + a;295				}296				return "bar" + foo(5);297			}298	`), os.ModePerm))299	r1, err := getSimpleRunnerWithFileFs("/main.js", `300			import {foo} from './a.js';301			import {bar} from './b.js';302			export default function() {303				let fooMessage = foo();304				if (fooMessage != "foobar3") {305					throw new Error("Wrong value of foo() "+ fooMessage);306				}307				let barMessage = bar();308				if (barMessage != "barfoo5") {309					throw new Error("Wrong value of bar() "+ barMessage);310				}311			}312		`, fs)313	require.NoError(t, err)314	arc := r1.MakeArchive()315	r2, err := NewFromArchive(arc, lib.RuntimeOptions{})316	require.NoError(t, err)317	runners := map[string]*Runner{"Source": r1, "Archive": r2}318	for name, r := range runners {319		r := r320		t.Run(name, func(t *testing.T) {321			ch := newDevNullSampleChannel()322			defer close(ch)323			vu, err := r.NewVU(ch)324			require.NoError(t, err)325			err = vu.RunOnce(context.Background())326			require.NoError(t, err)327		})328	}329}330func TestBrowserified(t *testing.T) {331	fs := afero.NewMemMapFs()332	//nolint: lll333	require.NoError(t, afero.WriteFile(fs, "/browserified.js", []byte(`334		(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.npmlibs = f()}})(function(){var define,module,exports;return (function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){335		module.exports.A = function () {336			return "a";337		}338		},{}],2:[function(require,module,exports){339		exports.B = function() {340		return "b";341		}342		},{}],3:[function(require,module,exports){343		exports.alpha = require('./a.js');344		exports.bravo = require('./b.js');345		},{"./a.js":1,"./b.js":2}]},{},[3])(3)346		});347	`), os.ModePerm))348	r1, err := getSimpleRunnerWithFileFs("/script.js", `349			import {alpha, bravo } from "./browserified.js";350			export default function(data) {351				if (alpha.A === undefined) {352					throw new Error("alpha.A is undefined");353				}354				if (alpha.A() != "a") {355					throw new Error("alpha.A() != 'a'    (" + alpha.A() + ") != 'a'");356				}357				if (bravo.B === undefined) {358					throw new Error("bravo.B is undefined");359				}360				if (bravo.B() != "b") {361					throw new Error("bravo.B() != 'b'    (" + bravo.B() + ") != 'b'");362				}363			}364		`, fs)365	require.NoError(t, err)366	arc := r1.MakeArchive()367	r2, err := NewFromArchive(arc, lib.RuntimeOptions{})368	require.NoError(t, err)369	runners := map[string]*Runner{"Source": r1, "Archive": r2}370	for name, r := range runners {371		r := r372		t.Run(name, func(t *testing.T) {373			ch := make(chan stats.SampleContainer, 100)374			defer close(ch)375			vu, err := r.NewVU(ch)376			require.NoError(t, err)377			err = vu.RunOnce(context.Background())378			require.NoError(t, err)379		})380	}381}382func TestLoadingUnexistingModuleDoesntPanic(t *testing.T) {383	fs := afero.NewMemMapFs()384	data := `var b;385			try {386				b = eval("require('buffer')");387			} catch (err) {388				b = "correct";389			}390			export default function() {391				if (b != "correct") {392					throw new Error("wrong b "+ JSON.stringify(b));393				}394			}`395	require.NoError(t, afero.WriteFile(fs, "/script.js", []byte(data), 0644))396	r1, err := getSimpleRunnerWithFileFs("/script.js", data, fs)397	require.NoError(t, err)398	arc := r1.MakeArchive()399	var buf = &bytes.Buffer{}400	require.NoError(t, arc.Write(buf))401	arc, err = lib.ReadArchive(buf)402	require.NoError(t, err)403	r2, err := NewFromArchive(arc, lib.RuntimeOptions{})404	require.NoError(t, err)405	runners := map[string]*Runner{"Source": r1, "Archive": r2}406	for name, r := range runners {407		r := r408		t.Run(name, func(t *testing.T) {409			ch := newDevNullSampleChannel()410			defer close(ch)411			vu, err := r.NewVU(ch)412			require.NoError(t, err)413			err = vu.RunOnce(context.Background())414			require.NoError(t, err)415		})416	}417}...

newDevNullSampleChannel

Using AI Code Generation

1var devNullSampleChannel = newDevNullSampleChannel();2devNullSampleChannel.play();3var devNullSampleChannel = js.newDevNullSampleChannel();4devNullSampleChannel.play();5var devNullSampleChannel = js.newDevNullSampleChannel();6devNullSampleChannel.play();7var devNullSampleChannel = js.newDevNullSampleChannel();8devNullSampleChannel.play();9var devNullSampleChannel = js.newDevNullSampleChannel();10devNullSampleChannel.play();11var devNullSampleChannel = js.newDevNullSampleChannel();12devNullSampleChannel.play();13var devNullSampleChannel = js.newDevNullSampleChannel();14devNullSampleChannel.play();15var devNullSampleChannel = js.newDevNullSampleChannel();16devNullSampleChannel.play();17var devNullSampleChannel = js.newDevNullSampleChannel();18devNullSampleChannel.play();19var devNullSampleChannel = js.newDevNullSampleChannel();20devNullSampleChannel.play();21var devNullSampleChannel = js.newDevNullSampleChannel();22devNullSampleChannel.play();23var devNullSampleChannel = js.newDevNullSampleChannel();24devNullSampleChannel.play();25var devNullSampleChannel = js.newDevNullSampleChannel();26devNullSampleChannel.play();

newDevNullSampleChannel

Using AI Code Generation

1var devNullSampleChannel = new DevNullSampleChannel();2devNullSampleChannel.setSampleRate(44100);3devNullSampleChannel.setSampleSizeInBits(16);4devNullSampleChannel.setChannels(1);5devNullSampleChannel.setFrameSize(2);6devNullSampleChannel.setBigEndian(false);7var devNullSampleChannel = new DevNullSampleChannel();8devNullSampleChannel.setSampleRate(44100);9devNullSampleChannel.setSampleSizeInBits(16);10devNullSampleChannel.setChannels(1);11devNullSampleChannel.setFrameSize(2);12devNullSampleChannel.setBigEndian(false);13var devNullSampleChannel = new DevNullSampleChannel();14devNullSampleChannel.setSampleRate(44100);15devNullSampleChannel.setSampleSizeInBits(16);16devNullSampleChannel.setChannels(1);17devNullSampleChannel.setFrameSize(2);18devNullSampleChannel.setBigEndian(false);19var devNullSampleChannel = new DevNullSampleChannel();20devNullSampleChannel.setSampleRate(44100);21devNullSampleChannel.setSampleSizeInBits(16);22devNullSampleChannel.setChannels(1);23devNullSampleChannel.setFrameSize(2);24devNullSampleChannel.setBigEndian(false);25var devNullSampleChannel = new DevNullSampleChannel();26devNullSampleChannel.setSampleRate(44100);27devNullSampleChannel.setSampleSizeInBits(16);28devNullSampleChannel.setChannels(1);29devNullSampleChannel.setFrameSize(2);30devNullSampleChannel.setBigEndian(false);31var devNullSampleChannel = new DevNullSampleChannel();32devNullSampleChannel.setSampleRate(44100);33devNullSampleChannel.setSampleSizeInBits(16);34devNullSampleChannel.setChannels(1);35devNullSampleChannel.setFrameSize(2);36devNullSampleChannel.setBigEndian(false);

newDevNullSampleChannel

Using AI Code Generation

1var newDevNullSampleChannel = js.newDevNullSampleChannel;2var sampleChannel = newDevNullSampleChannel();3var newDevNullSampleChannel = js.newDevNullSampleChannel;4var sampleChannel = newDevNullSampleChannel();5var newDevNullSampleChannel = js.newDevNullSampleChannel;6var sampleChannel = newDevNullSampleChannel();7var newDevNullSampleChannel = js.newDevNullSampleChannel;8var sampleChannel = newDevNullSampleChannel();9var newDevNullSampleChannel = js.newDevNullSampleChannel;10var sampleChannel = newDevNullSampleChannel();11var newDevNullSampleChannel = js.newDevNullSampleChannel;12var sampleChannel = newDevNullSampleChannel();13var newDevNullSampleChannel = js.newDevNullSampleChannel;14var sampleChannel = newDevNullSampleChannel();15var newDevNullSampleChannel = js.newDevNullSampleChannel;16var sampleChannel = newDevNullSampleChannel();17var newDevNullSampleChannel = js.newDevNullSampleChannel;18var sampleChannel = newDevNullSampleChannel();19var newDevNullSampleChannel = js.newDevNullSampleChannel;20var sampleChannel = newDevNullSampleChannel();21var newDevNullSampleChannel = js.newDevNullSampleChannel;22var sampleChannel = newDevNullSampleChannel();23var newDevNullSampleChannel = js.newDevNullSampleChannel;24var sampleChannel = newDevNullSampleChannel();

newDevNullSampleChannel

Using AI Code Generation

1import (2func main() {3	j := js.Global.Get("NewDevNullSampleChannel")4	o := j.Invoke()5	o.Call("Sample")6	time.Sleep(2 * time.Second)7	o.Call("Sample")8}9import (10func main() {11	j := js.Global.Get("NewDevNullSampleChannel")12	o := j.Invoke()13	o.Call("Sample")14	time.Sleep(2 * time.Second)15	o.Call("Sample")16}17import (18func main() {19	j := js.Global.Get("NewDevNullSampleChannel")20	o := j.Invoke()21	o.Call("Sample")22	time.Sleep(2 * time.Second)23	o.Call("Sample")24}25import (26func main() {27	j := js.Global.Get("NewDevNullSampleChannel")28	o := j.Invoke()29	o.Call("Sample")30	time.Sleep(2 * time.Second)31	o.Call("Sample")32}33import (34func main()

newDevNullSampleChannel

Using AI Code Generation

1var sc = new SampleChannel();2sc.newDevNullSampleChannel();3sc.start();4sc.stop();5sc.close();6var sc = new SampleChannel();7sc.newDevNullSampleChannel();8sc.start();9sc.stop();10sc.close();11var sc = new SampleChannel();12sc.newDevNullSampleChannel();13sc.start();14sc.stop();15sc.close();16var sc = new SampleChannel();17sc.newDevNullSampleChannel();18sc.start();19sc.stop();20sc.close();21var sc = new SampleChannel();22sc.newDevNullSampleChannel();23sc.start();24sc.stop();25sc.close();26var sc = new SampleChannel();27sc.newDevNullSampleChannel();28sc.start();29sc.stop();30sc.close();31var sc = new SampleChannel();32sc.newDevNullSampleChannel();33sc.start();34sc.stop();35sc.close();36var sc = new SampleChannel();37sc.newDevNullSampleChannel();38sc.start();39sc.stop();40sc.close();41var sc = new SampleChannel();42sc.newDevNullSampleChannel();43sc.start();44sc.stop();45sc.close();

newDevNullSampleChannel

Using AI Code Generation

1func newDevNullSampleChannel() *js.Object {2    return js.Global.Get("devNullSampleChannel").New()3}4func newSampleChannel() *js.Object {5    return js.Global.Get("sampleChannel").New()6}7func newSampleChannel() *js.Object {8    return js.Global.Get("sampleChannel").New()9}10func newSampleChannel() *js.Object {11    return js.Global.Get("sampleChannel").New()12}13func newSampleChannel() *js.Object {14    return js.Global.Get("sampleChannel").New()15}16func newSampleChannel() *js.Object {17    return js.Global.Get("sampleChannel").New()18}19func newSampleChannel() *js.Object {20    return js.Global.Get("sampleChannel").New()21}22func newSampleChannel() *js.Object {23    return js.Global.Get("sampleChannel").New()24}

newDevNullSampleChannel

Using AI Code Generation

1import (2func main() {3	js.Global().Set("golang", js.FuncOf(func(this js.Value, args []js.Value) interface{} {4		if len(args) < 1 {5			return js.Null()6		}7		sc := js.Global().Get("newDevNullSampleChannel").Invoke()8		sc.Call("play")9		return js.Null()10	}))11	select {}12}13var newDevNullSampleChannel = function() {14    var sample = new Sample();15    var sampleChannel = new SampleChannel(sample);16    return sampleChannel;17}18var newDevNullSampleChannel = function() {19    var sample = new Sample();20    var sampleChannel = new SampleChannel(sample);21    return sampleChannel;22}23var newDevNullSampleChannel = function() {24    var sample = new Sample();25    var sampleChannel = new SampleChannel(sample);26    return sampleChannel;27}28var newDevNullSampleChannel = function()

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