Best JavaScript code snippet using wpt
DestroyMethodTests.js
Source:DestroyMethodTests.js  
1describe("'destroy()' Method tests", function() {2  var testSlider;3  it("removes the extra DOM elements associated with a slider", function() {4    testSlider = new Slider("#testSlider1", {5      id: "destroyMethodTestSlider"6    });7    testSlider.destroy();8    var sliderParentElement = $("#testSlider1").parent('div.slider').length;9    var sliderChildrenElements = $("#testSlider1").siblings('div.slider-track, div.tooltip').length;10    expect(sliderParentElement).toBe(0);11    expect(sliderChildrenElements).toBe(0);12  });13  describe("unbinds all slider events", function() {14    var flag, evtName;15    beforeEach(function() {16      testSlider = new Slider("#testSlider1", {17        id: "destroyMethodTestSlider"18      });19      flag = false;20    });21    it("unbinds from 'slideStart' event", function() {22      evtName = 'slideStart';23      $("#destroyMethodTestSlider").on(evtName, function() {24        flag = true;25      });26      testSlider.destroy();27      $("#destroyMethodTestSlider").trigger(evtName);28      expect(flag).toBeFalsy();29    });30    it("unbinds from 'slide' event", function() {31      evtName = 'slide';32      $("#destroyMethodTestSlider").on(evtName, function() {33        flag = true;34      });35      testSlider.destroy();36      $("#destroyMethodTestSlider").trigger(evtName);37      expect(flag).toBeFalsy();38    });39    it("unbinds from 'slideStop' event", function() {40      evtName = 'slideStop';41      $("#destroyMethodTestSlider").on(evtName, function() {42        flag = true;43      });44      testSlider.destroy();45      $("#destroyMethodTestSlider").trigger(evtName);46      expect(flag).toBeFalsy();47    });48    it("unbinds from 'slideChange' event", function() {49      evtName = 'slideChange';50      $("#destroyMethodTestSlider").on(evtName, function() {51        flag = true;52      });53      testSlider.destroy();54      $("#destroyMethodTestSlider").trigger(evtName);55      expect(flag).toBeFalsy();56    });57  });58  describe("DOM event listener removal tests", function() {59    describe("When tooltips are always hidden for single value sliders", function() {60      beforeEach(function() {61        // Create slider62        testSlider = new Slider("#testSlider1", {63          id: "destroyMethodTestSlider",64          tooltip: "hide"65        });66      });67      it("does not try to remove 'focus' event listener from handle1", function() {68        // Set up spy on 'removeEventListener'69        spyOn(testSlider.handle1, "removeEventListener");70        // Destroy slider71        testSlider.destroy();72        // Assert73        expect(testSlider.handle1.removeEventListener).not.toHaveBeenCalledWith("focus", undefined, false);74      });75      it("does not try to remove 'blur' event listener from handle1", function() {76        // Set up spy on 'removeEventListener'77        spyOn(testSlider.handle1, "removeEventListener");78        // Destroy slider79        testSlider.destroy();80        // Assert81        expect(testSlider.handle1.removeEventListener).not.toHaveBeenCalledWith("blur", undefined, false);82      });83      it("does not try to remove 'mouseenter' event listener from slider", function() {84        // Set up spy on 'removeEventListener'85        spyOn(testSlider.sliderElem, "removeEventListener");86        // Destroy slider87        testSlider.destroy();88        // Assert89        expect(testSlider.sliderElem.removeEventListener).not.toHaveBeenCalledWith("mouseenter", undefined, false);90      });91      it("does not try to remove 'mouseleave' event listener from slider", function() {92        // Set up spy on 'removeEventListener'93        spyOn(testSlider.sliderElem, "removeEventListener");94        // Destroy slider95        testSlider.destroy();96        // Assert97        expect(testSlider.sliderElem.removeEventListener).not.toHaveBeenCalledWith("mouseleave", undefined, false);98      });99    });100    describe("When tooltips are always shown for single value sliders", function() {101      beforeEach(function() {102        // Create slider103        testSlider = new Slider("#testSlider1", {104          id: "destroyMethodTestSlider",105          tooltip: "always"106        });107      });108      it("does not try to remove 'focus' event listener from handle1 when tooltip is always shown for single handle sliders", function() {109        // Set up spy on 'removeEventListener'110        spyOn(testSlider.handle1, "removeEventListener");111        // Destroy slider112        testSlider.destroy();113        // Assert114        expect(testSlider.handle1.removeEventListener).not.toHaveBeenCalledWith("focus", undefined, false);115      });116      it("does not try to remove 'blur' event listener from handle1 when tooltip is always shown for single handle sliders", function() {117          // Set up spy on 'removeEventListener'118          spyOn(testSlider.handle1, "removeEventListener");119          // Destroy slider120          testSlider.destroy();121          // Assert122          expect(testSlider.handle1.removeEventListener).not.toHaveBeenCalledWith("blur", undefined, false);123      });124      it("does not try to remove 'mouseenter' event listener from slider is always shown for single handle slider", function() {125        // Set up spy on 'removeEventListener'126        spyOn(testSlider.handle1, "removeEventListener");127        // Destroy slider128        testSlider.destroy();129        // Assert130        expect(testSlider.handle1.removeEventListener).not.toHaveBeenCalledWith("mouseenter", undefined, false);131      });132      it("does not try to remove 'mouseleave' event listener from slider is always shown for single handle slider", function() {133        // Set up spy on 'removeEventListener'134        spyOn(testSlider.sliderElem, "removeEventListener");135        // Destroy slider136        testSlider.destroy();137        // Assert138        expect(testSlider.sliderElem.removeEventListener).not.toHaveBeenCalledWith("mouseleave", undefined, false);139      });140    });141    describe("When tooltips are always hidden for range sliders", function() {142      beforeEach(function() {143        // Create slider144        testSlider = new Slider("#testSlider1", {145          id: "destroyMethodTestSlider",146          tooltip: "always",147          value: [2,5]148        });149      });150      it("does not try to remove 'focus' event listener from handle1", function() {151        // Set up spy on 'removeEventListener'152        spyOn(testSlider.handle1, "removeEventListener");153        // Destroy slider154        testSlider.destroy();155        // Assert156        expect(testSlider.handle1.removeEventListener).not.toHaveBeenCalledWith("focus", undefined, false);157      });158      it("does not try to remove 'focus' event listener from handle2", function() {159        // Set up spy on 'removeEventListener'160        spyOn(testSlider.handle2, "removeEventListener");161        // Destroy slider162        testSlider.destroy();163        // Assert164        expect(testSlider.handle2.removeEventListener).not.toHaveBeenCalledWith("focus", undefined, false);165      });166      it("does not try to remove 'blur' event listener from handle1", function() {167        // Set up spy on 'removeEventListener'168        spyOn(testSlider.handle1, "removeEventListener");169        // Destroy slider170        testSlider.destroy();171        // Assert172        expect(testSlider.handle1.removeEventListener).not.toHaveBeenCalledWith("blur", undefined, false);173      });174      it("does not try to remove 'blur' event listener from handle2", function() {175        // Set up spy on 'removeEventListener'176        spyOn(testSlider.handle2, "removeEventListener");177        // Destroy slider178        testSlider.destroy();179        // Assert180        expect(testSlider.handle2.removeEventListener).not.toHaveBeenCalledWith("blur", undefined, false);181      });182      it("does not try to remove 'mouseenter' event listener from slider", function() {183        // Set up spy on 'removeEventListener'184        spyOn(testSlider.sliderElem, "removeEventListener");185        // Destroy slider186        testSlider.destroy();187        // Assert188        expect(testSlider.sliderElem.removeEventListener).not.toHaveBeenCalledWith("mouseenter", undefined, false);189      });190      it("does not try to remove 'mouseleave' event listener from slider", function() {191        // Set up spy on 'removeEventListener'192        spyOn(testSlider.sliderElem, "removeEventListener");193        // Destroy slider194        testSlider.destroy();195        // Assert196        expect(testSlider.sliderElem.removeEventListener).not.toHaveBeenCalledWith("mouseleave", undefined, false);197      });198    });199    describe("When tooltips are always shown for range sliders", function() {200      beforeEach(function() {201        // Create slider202        testSlider = new Slider("#testSlider1", {203          id: "destroyMethodTestSlider",204          tooltip: "always",205          value: [2,5]206        });207      });208      it("does not try to remove 'focus' event listener from handle1", function() {209        // Set up spy on 'removeEventListener'210        spyOn(testSlider.handle1, "removeEventListener");211        // Destroy slider212        testSlider.destroy();213        // Assert214        expect(testSlider.handle1.removeEventListener).not.toHaveBeenCalledWith("focus", undefined, false);215      });216      217      it("does not try to remove 'focus' event listener from handle2", function() {218        // Set up spy on 'removeEventListener'219        spyOn(testSlider.handle2, "removeEventListener");220        // Destroy slider221        testSlider.destroy();222        // Assert223        expect(testSlider.handle2.removeEventListener).not.toHaveBeenCalledWith("focus", undefined, false);224      });225      it("does not try to remove 'blur' event listener from handle1", function() {226        // Set up spy on 'removeEventListener'227        spyOn(testSlider.handle1, "removeEventListener");228        // Destroy slider229        testSlider.destroy();230        // Assert231        expect(testSlider.handle1.removeEventListener).not.toHaveBeenCalledWith("blur", undefined, false);232      });233      234       it("does not try to remove 'blur' event listener from handle1 and handle2", function() {235        // Set up spy on 'removeEventListener'236        spyOn(testSlider.handle2, "removeEventListener");237        // Destroy slider238        testSlider.destroy();239        // Assert240        expect(testSlider.handle2.removeEventListener).not.toHaveBeenCalledWith("blur", undefined, false);241      });242      it("does not try to remove 'mouseenter' event listener from slider", function() {243        // Set up spy on 'removeEventListener'244        spyOn(testSlider.sliderElem, "removeEventListener");245        // Destroy slider246        testSlider.destroy();247        // Assert248        expect(testSlider.sliderElem.removeEventListener).not.toHaveBeenCalledWith("mouseenter", undefined, false);249      });250      it("does not try to remove 'mouseleave' event listener from slider", function() {251        // Set up spy on 'removeEventListener'252        spyOn(testSlider.sliderElem, "removeEventListener");253        // Destroy slider254        testSlider.destroy();255        // Assert256        expect(testSlider.sliderElem.removeEventListener).not.toHaveBeenCalledWith("mouseleave", undefined, false);257      });258    });259  });...Using AI Code Generation
1var wpt = require('webpagetest');2var wpt = new WebPageTest('www.webpagetest.org');3}, function(err, data) {4  if (err) return console.error(err);5  console.log('Test status:', data.statusText);6  if (data.statusCode === 200) {7    console.log('Test completed, results are available at', data.data.userUrl);8  } else {9    console.log('Waiting for results...');10    wpt.waitForTestResults(data.data.testId, function(err, data) {11      if (err) return console.error(err);12      console.log('Test status:', data.statusText);13      console.log('Test completed, results are available at', data.data.userUrl);14    });15  }16});17var wpt = require('webpagetest');18var wpt = new WebPageTest('www.webpagetest.org');19}, function(err, data) {20  if (err) return console.error(err);21  console.log('Test status:', data.statusText);22  if (data.statusCode === 200) {23    console.log('Test completed, results are available at', data.data.userUrl);24  } else {25    console.log('Waiting for results...');26    wpt.waitForTestResults(data.data.testId, function(err, data) {27      if (err) return console.error(err);28      console.log('Test status:', data.statusText);29      console.log('Test completed, results are available at', data.data.userUrl);30    });31  }32});33var wpt = require('webpagetest');34var wpt = new WebPageTest('www.webpagetest.org');Using AI Code Generation
1wpt.removeEventListener("load", myEventHandler);2wpt.addEventListener("load", myEventHandler);3wpt.removeEventListener("unload", myEventHandler);4wpt.addEventListener("unload", myEventHandler);5wpt.removeEventListener("beforeunload", myEventHandler);6wpt.addEventListener("beforeunload", myEventHandler);7wpt.removeEventListener("DOMContentLoaded", myEventHandler);8wpt.addEventListener("DOMContentLoaded", myEventHandler);9wpt.removeEventListener("firstPaint", myEventHandler);10wpt.addEventListener("firstPaint", myEventHandler);11wpt.removeEventListener("domInteractive", myEventHandler);12wpt.addEventListener("domInteractive", myEventHandler);13wpt.removeEventListener("domContentLoaded", myEventHandler);14wpt.addEventListener("domContentLoaded", myEventHandler);15wpt.removeEventListener("domCompleteUsing AI Code Generation
1var test = function(){2  var event = document.createEvent("Event");3  event.initEvent("foo", true, true);4  document.dispatchEvent(event);5  document.removeEventListener("foo", test);6  document.dispatchEvent(event);7}8document.addEventListener("foo", test);Using AI Code Generation
1var event = new Event('myEvent');2function callback(e) {3    console.log('event fired');4}5window.addEventListener('myEvent', callback);6window.dispatchEvent(event);7window.removeEventListener('myEvent', callback);8window.dispatchEvent(event);9 > I can reproduce this on Nightly 50.0a1 (2016-07-21) (64-bit) on OS X10Flags: needinfo?(jwalden+bmo)Using AI Code Generation
1wpt.removeEventListener('onload', 'myFunction');2wpt.removeEventListener('onload', 'myFunction2');3wpt.removeEventListener('onload', 'myFunction');4wpt.removeEventListener('onload', 'myFunction2');5wpt.removeEventListener('onload', 'myFunction');6wpt.removeEventListener('onload', 'myFunction2');7wpt.removeEventListener('onload', 'myFunction');8wpt.removeEventListener('onload', 'myFunction2');9wpt.removeEventListener('onload', 'myFunction');10wpt.removeEventListener('onload', 'myFunction2');11wpt.removeEventListener('onload', 'myFunction');12wpt.removeEventListener('onload', 'myFunction2');13wpt.removeEventListener('onload', 'myFunction');14wpt.removeEventListener('onload', 'myFunction2');15wpt.removeEventListener('onload', 'myFunction');16wpt.removeEventListener('onload', 'myFunction2');17wpt.removeEventListener('onload', 'myFunction');18wpt.removeEventListener('onload', 'myFunction2');19wpt.removeEventListener('onload', 'myFunction');20wpt.removeEventListener('onload', 'myFunction2');21wpt.removeEventListener('onload', 'myFunctionUsing AI Code Generation
1addEventListener("message",function(e){2  removeEventListener("message",arguments.callee);3  postMessage("done");4},false);5addEventListener("message",function(e){6  postMessage("done");7},false);8postMessage("done");9terminate();10importScripts("test.js");11addEventListener("error",function(e){12  postMessage(e.message);13},false);14addEventListener("message",function(e){15  postMessage(e.data);16},false);17addEventListener("messageerror",function(e){18  postMessage(e.message);19},false);20addEventListener("messageerror",function(e){21  postMessage(e.message);22},false);23addEventListener("messageerror",function(e){24  postMessage(e.message);25},false);26addEventListener("messageerror",function(e){27  postMessage(e.message);28},false);29addEventListener("messageerror",function(e){30  postMessage(e.message);31},false);32addEventListener("messageerror",function(e){33  postMessage(e.message);34},false);35addEventListener("messageerror",function(e){36  postMessage(e.message);37},false);38addEventListener("messageerror",function(e){39  postMessage(e.message);40},false);Using AI Code Generation
1wpt.addEventListener('test', function (e) {2    console.log("Event is triggered");3});4wpt.removeEventListener('test', function (e) {5    console.log("Event is triggered");6});7wpt.addEventListener('test', function (e) {8    console.log("Event is triggered");9});10wpt.removeEventListener('test', function (e) {11    console.log("Event is triggered");12});Using AI Code Generation
1var test = async_test("removeEventListener: test for valid event type and listener", {timeout: 1000});2var test2 = async_test("removeEventListener: test for valid event type and listener", {timeout: 1000});3window.addEventListener('load', test.step_func(function() {4    var iframe = document.createElement('iframe');5    iframe.src = 'resources/iframe.html';6    document.body.appendChild(iframe);7    iframe.addEventListener('load', test2.step_func(function() {8        var iframeWindow = iframe.contentWindow;9        var iframeDocument = iframeWindow.document;10        var event = iframeDocument.createEvent('Event');11        event.initEvent('test', true, true);12        iframeWindow.addEventListener('test', test.step_func(function(e) {13            assert_equals(e.type, 'test');14            test.done();15        }), false);16        iframeWindow.dispatchEvent(event);17        iframeWindow.removeEventListener('test', test.step_func(function(e) {18            assert_equals(e.type, 'test');19            test2.done();20        }), false);21        iframeWindow.dispatchEvent(event);22    }), false);23}), false);24var event = document.createEvent('Event');25event.initEvent('test', true, true);26window.addEventListener('test', function(e) {27    assert_equals(e.type, 'test');28}, false);29window.dispatchEvent(event);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.
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Get 100 minutes of automation test minutes FREE!!
