How to use assertInvariants method in wpt
Best JavaScript code snippet using wpt
content-test.js
Source:content-test.js 
...69 this.assertContent('hello');70 this.assertStableRerender();71 this.runTask(() => set(this.context, 'message', 'goodbye'));72 this.assertContent('goodbye');73 this.assertInvariants();74 this.runTask(() => set(this.context, 'message', 'hello'));75 this.assertContent('hello');76 this.assertInvariants();77 }78 ['@test resolves the string length properly']() {79 this.render('<p>{{foo.length}}</p>', { foo: undefined });80 this.assertHTML('<p></p>');81 this.assertStableRerender();82 this.runTask(() => set(this.context, 'foo', 'foo'));83 this.assertHTML('<p>3</p>');84 this.runTask(() => set(this.context, 'foo', ''));85 this.assertHTML('<p>0</p>');86 this.runTask(() => set(this.context, 'foo', undefined));87 this.assertHTML('<p></p>');88 }89 ['@test resolves the array length properly']() {90 this.render('<p>{{foo.length}}</p>', { foo: undefined });91 this.assertHTML('<p></p>');92 this.assertStableRerender();93 this.runTask(() => set(this.context, 'foo', [1, 2, 3]));94 this.assertHTML('<p>3</p>');95 this.runTask(() => set(this.context, 'foo', []));96 this.assertHTML('<p>0</p>');97 this.runTask(() => set(this.context, 'foo', undefined));98 this.assertHTML('<p></p>');99 }100 ['@test it can render a capitalized path with no deprecation']() {101 expectNoDeprecation();102 this.renderPath('CaptializedPath', { CaptializedPath: 'no deprecation' });103 this.assertContent('no deprecation');104 this.assertStableRerender();105 this.runTask(() => set(this.context, 'CaptializedPath', 'still no deprecation'));106 this.assertContent('still no deprecation');107 this.assertInvariants();108 this.runTask(() => set(this.context, 'CaptializedPath', 'no deprecation'));109 this.assertContent('no deprecation');110 this.assertInvariants();111 }112 ['@test it can render undefined dynamic paths']() {113 this.renderPath('name', {});114 this.assertIsEmpty();115 this.assertStableRerender();116 this.runTask(() => set(this.context, 'name', 'foo-bar'));117 this.assertContent('foo-bar');118 this.runTask(() => set(this.context, 'name', undefined));119 this.assertIsEmpty();120 }121 ['@test it can render a deeply nested dynamic path']() {122 this.renderPath('a.b.c.d.e.f', {123 a: { b: { c: { d: { e: { f: 'hello' } } } } }124 });125 this.assertContent('hello');126 this.assertStableRerender();127 this.runTask(() => set(this.context, 'a.b.c.d.e.f', 'goodbye'));128 this.assertContent('goodbye');129 this.assertInvariants();130 this.runTask(() => set(this.context, 'a.b.c.d', { e: { f: 'aloha' } }));131 this.assertContent('aloha');132 this.assertInvariants();133 this.runTask(() => {134 set(this.context, 'a',135 { b: { c: { d: { e: { f: 'hello' } } } } }136 );137 });138 this.assertContent('hello');139 this.assertInvariants();140 }141 ['@test it can render a computed property']() {142 let Formatter = EmberObject.extend({143 formattedMessage: computed('message', function() {144 return this.get('message').toUpperCase();145 })146 });147 let m = Formatter.create({ message: 'hello' });148 this.renderPath('m.formattedMessage', { m });149 this.assertContent('HELLO');150 this.assertStableRerender();151 this.runTask(() => set(m, 'message', 'goodbye'));152 this.assertContent('GOODBYE');153 this.assertInvariants();154 this.runTask(() => set(this.context, 'm', Formatter.create({ message: 'hello' })));155 this.assertContent('HELLO');156 this.assertInvariants();157 }158 ['@test it can render a computed property with nested dependency']() {159 let Formatter = EmberObject.extend({160 formattedMessage: computed('messenger.message', function() {161 return this.get('messenger.message').toUpperCase();162 })163 });164 let m = Formatter.create({ messenger: { message: 'hello' } });165 this.renderPath('m.formattedMessage', { m });166 this.assertContent('HELLO');167 this.assertStableRerender();168 this.runTask(() => set(m, 'messenger.message', 'goodbye'));169 this.assertContent('GOODBYE');170 this.assertInvariants();171 this.runTask(() => set(this.context, 'm', Formatter.create({ messenger: { message: 'hello' } })));172 this.assertContent('HELLO');173 this.assertInvariants();174 }175 ['@test it can read from a proxy object']() {176 this.renderPath('proxy.name', { proxy: ObjectProxy.create({ content: { name: 'Tom Dale' } }) });177 this.assertContent('Tom Dale');178 this.assertStableRerender();179 this.runTask(() => set(this.context, 'proxy.content.name', 'Yehuda Katz'));180 this.assertContent('Yehuda Katz');181 this.assertInvariants();182 this.runTask(() => set(this.context, 'proxy.content', { name: 'Godfrey Chan' }));183 this.assertContent('Godfrey Chan');184 this.assertInvariants();185 this.runTask(() => set(this.context, 'proxy.name', 'Stefan Penner'));186 this.assertContent('Stefan Penner');187 this.assertInvariants();188 this.runTask(() => set(this.context, 'proxy.content', null));189 this.assertIsEmpty();190 this.runTask(() => set(this.context, 'proxy', ObjectProxy.create({ content: { name: 'Tom Dale' } })));191 this.assertContent('Tom Dale');192 this.assertInvariants();193 }194 ['@test it can read from a nested path in a proxy object']() {195 this.renderPath('proxy.name.last', { proxy: ObjectProxy.create({ content: { name: { first: 'Tom', last: 'Dale' } } }) });196 this.assertContent('Dale');197 this.assertStableRerender();198 this.runTask(() => set(this.context, 'proxy.content.name.last', 'Cruise'));199 this.assertContent('Cruise');200 this.assertInvariants();201 this.runTask(() => set(this.context, 'proxy.content.name.first', 'Suri'));202 this.assertStableRerender();203 this.runTask(() => set(this.context, 'proxy.content.name', { first: 'Yehuda', last: 'Katz' }));204 this.assertContent('Katz');205 this.assertInvariants();206 this.runTask(() => set(this.context, 'proxy.content', { name: { first: 'Godfrey', last: 'Chan' } }));207 this.assertContent('Chan');208 this.assertInvariants();209 this.runTask(() => set(this.context, 'proxy.name', { first: 'Stefan', last: 'Penner' }));210 this.assertContent('Penner');211 this.assertInvariants();212 this.runTask(() => set(this.context, 'proxy', null));213 this.assertIsEmpty();214 this.runTask(() => set(this.context, 'proxy', ObjectProxy.create({ content: { name: { first: 'Tom', last: 'Dale' } } })));215 this.assertContent('Dale');216 this.assertInvariants();217 }218 ['@test it can read from a path flipping between a proxy and a real object']() {219 this.renderPath('proxyOrObject.name.last', { proxyOrObject: ObjectProxy.create({ content: { name: { first: 'Tom', last: 'Dale' } } }) });220 this.assertContent('Dale');221 this.assertStableRerender();222 this.runTask(() => set(this.context, 'proxyOrObject', { name: { first: 'Tom', last: 'Dale' } }));223 this.assertStableRerender();224 this.runTask(() => set(this.context, 'proxyOrObject.name.last', 'Cruise'));225 this.assertContent('Cruise');226 this.assertInvariants();227 this.runTask(() => set(this.context, 'proxyOrObject.name.first', 'Suri'));228 this.assertStableRerender();229 this.runTask(() => set(this.context, 'proxyOrObject', { name: { first: 'Yehuda', last: 'Katz' } }));230 this.assertContent('Katz');231 this.assertInvariants();232 this.runTask(() => set(this.context, 'proxyOrObject', ObjectProxy.create({ content: { name: { first: 'Godfrey', last: 'Chan' } } })));233 this.assertContent('Chan');234 this.assertInvariants();235 this.runTask(() => set(this.context, 'proxyOrObject.content.name', { first: 'Stefan', last: 'Penner' }));236 this.assertContent('Penner');237 this.assertInvariants();238 this.runTask(() => set(this.context, 'proxyOrObject', null));239 this.assertIsEmpty();240 this.runTask(() => set(this.context, 'proxyOrObject', ObjectProxy.create({ content: { name: { first: 'Tom', last: 'Dale' } } })));241 this.assertContent('Dale');242 this.assertInvariants();243 }244 ['@test it can read from a path flipping between a real object and a proxy']() {245 this.renderPath('objectOrProxy.name.last', { objectOrProxy: { name: { first: 'Tom', last: 'Dale' } } });246 this.assertContent('Dale');247 this.assertStableRerender();248 this.runTask(() => set(this.context, 'objectOrProxy', ObjectProxy.create({ content: { name: { first: 'Tom', last: 'Dale' } } })));249 this.assertStableRerender();250 this.runTask(() => set(this.context, 'objectOrProxy.content.name.last', 'Cruise'));251 this.assertContent('Cruise');252 this.assertInvariants();253 this.runTask(() => set(this.context, 'objectOrProxy.content.name.first', 'Suri'));254 this.assertStableRerender();255 this.runTask(() => set(this.context, 'objectOrProxy.content', { name: { first: 'Yehuda', last: 'Katz' } }));256 this.assertContent('Katz');257 this.assertInvariants();258 this.runTask(() => set(this.context, 'objectOrProxy', { name: { first: 'Godfrey', last: 'Chan' } }));259 this.assertContent('Chan');260 this.assertInvariants();261 this.runTask(() => set(this.context, 'objectOrProxy.name', { first: 'Stefan', last: 'Penner' }));262 this.assertContent('Penner');263 this.assertInvariants();264 this.runTask(() => set(this.context, 'objectOrProxy', null));265 this.assertIsEmpty();266 this.runTask(() => set(this.context, 'objectOrProxy', { name: { first: 'Tom', last: 'Dale' } }));267 this.assertContent('Dale');268 this.assertInvariants();269 }270 ['@test it can read from a null object']() {271 let nullObject = Object.create(null);272 nullObject['message'] = 'hello';273 this.renderPath('nullObject.message', { nullObject });274 this.assertContent('hello');275 this.assertStableRerender();276 this.runTask(() => set(nullObject, 'message', 'goodbye'));277 this.assertContent('goodbye');278 this.assertInvariants();279 nullObject = Object.create(null);280 nullObject['message'] = 'hello';281 this.runTask(() => set(this.context, 'nullObject', nullObject));282 this.assertContent('hello');283 this.assertInvariants();284 }285 ['@test it can render a readOnly property of a path']() {286 let Messenger = EmberObject.extend({287 message: computed.readOnly('a.b.c')288 });289 let messenger = Messenger.create({290 a: {291 b: {292 c: 'hello'293 }294 }295 });296 this.renderPath('messenger.message', { messenger });297 this.assertContent('hello');298 this.assertStableRerender();299 this.runTask(() => set(messenger, 'a.b.c', 'hi'));300 this.assertContent('hi');301 this.assertInvariants();302 this.runTask(() => set(this.context, 'messenger.a.b', {303 c: 'goodbye'304 }));305 this.assertContent('goodbye');306 this.assertInvariants();307 this.runTask(() => set(this.context, 'messenger', {308 message: 'hello'309 }));310 this.assertContent('hello');311 this.assertInvariants();312 }313}314const EMPTY = {};315class ContentTestGenerator {316 constructor(cases, tag = '@test') {317 this.cases = cases;318 this.tag = tag;319 }320 generate([ value, expected, label ]) {321 let tag = this.tag;322 label = label || value;323 if (expected === EMPTY) {324 return {325 [`${tag} rendering ${label}`]() {326 this.renderPath('value', { value });327 this.assertIsEmpty();328 this.runTask(() => set(this.context, 'value', 'hello'));329 this.assertContent('hello');330 this.runTask(() => set(this.context, 'value', value));331 this.assertIsEmpty();332 }333 };334 } else {335 return {336 [`${tag} rendering ${label}`]() {337 this.renderPath('value', { value });338 this.assertContent(expected);339 this.assertStableRerender();340 this.runTask(() => set(this.context, 'value', 'hello'));341 this.assertContent('hello');342 this.assertInvariants();343 this.runTask(() => set(this.context, 'value', value));344 this.assertContent(expected);345 this.assertInvariants();346 }347 };348 }349 }350}351const SharedContentTestCases = new ContentTestGenerator([352 ['foo', 'foo'],353 [0, '0'],354 [-0, '0', '-0'],355 [1, '1'],356 [-1, '-1'],357 [0.0, '0', '0.0'],358 [0.5, '0.5'],359 [undefined, EMPTY],360 [null, EMPTY],361 [true, 'true'],362 [false, 'false'],363 [NaN, 'NaN'],364 [new Date(2000, 0, 1), String(new Date(2000, 0, 1)), 'a Date object'],365 [Infinity, 'Infinity'],366 [(1 / -0), '-Infinity'],367 [{ foo: 'bar' }, '[object Object]', `{ foo: 'bar' }`],368 [{ toString() { return 'foo'; } }, 'foo', 'an object with a custom toString function'],369 [{ valueOf() { return 1; } }, '[object Object]', 'an object with a custom valueOf function'],370 // Escaping tests371 ['<b>Max</b><b>James</b>', '<b>Max</b><b>James</b>']372]);373let GlimmerContentTestCases = new ContentTestGenerator([374 [Object.create(null), EMPTY, 'an object with no toString']375]);376if (typeof Symbol !== 'undefined') {377 GlimmerContentTestCases.cases.push([Symbol('debug'), 'Symbol(debug)', 'a symbol']);378}379applyMixins(DynamicContentTest, SharedContentTestCases, GlimmerContentTestCases);380moduleFor('Dynamic content tests (content position)', class extends DynamicContentTest {381 renderPath(path, context = {}) {382 this.render(`{{${path}}}`, context);383 }384 assertContent(content) {385 this.assert.strictEqual(this.nodesCount, 1, 'It should render exactly one text node');386 this.assertTextNode(this.firstChild, content);387 }388});389moduleFor('Dynamic content tests (content concat)', class extends DynamicContentTest {390 renderPath(path, context = {}) {391 this.render(`{{concat "" ${path} ""}}`, context);392 }393 assertContent(content) {394 this.assert.strictEqual(this.nodesCount, 1, 'It should render exactly one text node');395 this.assertTextNode(this.firstChild, content);396 }397});398moduleFor('Dynamic content tests (inside an element)', class extends DynamicContentTest {399 renderPath(path, context = {}) {400 this.render(`<p>{{${path}}}</p>`, context);401 }402 assertIsEmpty() {403 this.assert.strictEqual(this.nodesCount, 1, 'It should render exactly one <p> tag');404 this.assertElement(this.firstChild, { tagName: 'p' });405 this.assertText('');406 }407 assertContent(content) {408 this.assert.strictEqual(this.nodesCount, 1, 'It should render exactly one <p> tag');409 this.assertElement(this.firstChild, { tagName: 'p' });410 this.assertText(content);411 }412});413moduleFor('Dynamic content tests (attribute position)', class extends DynamicContentTest {414 renderPath(path, context = {}) {415 this.render(`<div data-foo="{{${path}}}"></div>`, context);416 }417 assertIsEmpty() {418 this.assert.strictEqual(this.nodesCount, 1, 'It should render exactly one <div> tag');419 this.assertElement(this.firstChild, { tagName: 'div', content: '' });420 }421 assertContent(content) {422 this.assert.strictEqual(this.nodesCount, 1, 'It should render exactly one <div> tag');423 this.assertElement(this.firstChild, { tagName: 'div', attrs: { 'data-foo': content }, content: '' });424 }425});426class TrustedContentTest extends DynamicContentTest {427 assertIsEmpty() {428 this.assert.strictEqual(this.firstChild, null);429 }430 assertContent(content) {431 this.assertHTML(content);432 }433 assertStableRerender() {434 this.takeSnapshot();435 this.runTask(() => this.rerender());436 super.assertInvariants();437 }438 assertInvariants() {439 // If it's not stable, we will wipe out all the content and replace them,440 // so there are no invariants441 }442}443moduleFor('Dynamic content tests (trusted)', class extends TrustedContentTest {444 renderPath(path, context = {}) {445 this.render(`{{{${path}}}}`, context);446 }447 ['@test updating trusted curlies']() {448 this.render('{{{htmlContent}}}{{{nested.htmlContent}}}', {449 htmlContent: '<b>Max</b>',450 nested: { htmlContent: '<b>James</b>' }451 });452 this.assertContent('<b>Max</b><b>James</b>');...
morph-list-test.js
Source:morph-list-test.js
...161 root = morph("root");162 root.appendToNode(frag);163 root.setMorphList(list);164}165function assertInvariants(assert) {166 assert.strictEqual(frag.firstChild, root.firstNode, "invariant: the fragment's first child is the root's first node");167 assert.strictEqual(frag.lastChild, root.lastNode, "invariant: the fragment's last child is the root's last node");168}169QUnit.test("appending a morph updates the DOM representation", function(assert) {170 var morph1 = morph("morph1");171 morph1.setNode(text("hello"));172 list.appendMorph(morph1);173 assertInvariants(assert);174 assert.equalHTML(frag, "hello");175 var morph2 = morph("morph2");176 morph2.setNode(text(" world"));177 list.appendMorph(morph2);178 assertInvariants(assert);179 assert.equalHTML(frag, "hello world");180});181QUnit.test("prepending a morph updates the DOM representation", function(assert) {182 var morph1 = morph("morph1");183 morph1.setNode(text("world"));184 list.appendMorph(morph1);185 assertInvariants(assert);186 assert.equalHTML(frag, "world");187 var morph2 = morph("morph2");188 morph2.setNode(text("hello "));189 list.insertBeforeMorph(morph2, morph1);190 assertInvariants(assert);191 assert.equalHTML(frag, "hello world");192});193QUnit.test("removing the last morph makes the mount point empty again", function(assert) {194 var morph1 = morph("morph1");195 morph1.setNode(text("hello world"));196 assert.equalHTML(frag, "<!---->");197 list.appendMorph(morph1);198 assertInvariants(assert);199 assert.equalHTML(frag, "hello world");200 list.removeChildMorph(morph1);201 assertInvariants(assert);202 assert.equalHTML(frag, "<!---->");203});204QUnit.test("multiple nestings is allowed", function(assert) {205 var list2 = new MorphList(dom);206 list2.label = "list2";207 var middle = morph("middle");208 middle.setMorphList(list2);209 var content = morph("content");210 content.setNode(text("hello world"));211 list.appendMorph(middle);212 list2.appendMorph(content);213 assertInvariants(assert);214 assert.equalHTML(frag, "hello world");215 list2.removeChildMorph(content);216 assertInvariants(assert);217 assert.equalHTML(frag, "<!---->");218 root.setNode(text("hello world"));219 assertInvariants(assert);220 assert.equalHTML(frag, "hello world");221});222var list2, c1, c2, c3;223QUnit.module("Recursively updating firstNode and lastNode", {224 setup: function() {225 commonSetup();226 domSetup();227 list2 = new MorphList(dom);228 list2.label = "list2";229 var middle = morph("middle");230 middle.setMorphList(list2);231 list.appendMorph(middle);232 c1 = morph("c1");233 c1.setNode(text("c1"));234 c2 = morph("c2");235 c2.setNode(text("c2"));236 c3 = morph("c3");237 c3.setNode(text("c3"));238 list2.appendMorph(c1);239 list2.appendMorph(c2);240 list2.appendMorph(c3);241 }242});243QUnit.test("sanity checks", function(assert) {244 assert.equalHTML(frag, "c1c2c3");245 assertInvariants(assert);246});247QUnit.test("removing the first node updates firstNode", function(assert) {248 list2.removeChildMorph(c1);249 assertInvariants(assert);250 assert.equalHTML(frag, "c2c3");251});252QUnit.test("removing the last node updates lastNode", function(assert) {253 list2.removeChildMorph(c3);254 assertInvariants(assert);255 assert.equalHTML(frag, "c1c2");256});257QUnit.test("removing a middle node doesn't do anything", function(assert) {258 list2.removeChildMorph(c2);259 assertInvariants(assert);260 assert.equalHTML(frag, "c1c3");261});262QUnit.test("prepending a node updates firstNode", function(assert) {263 var c4 = morph("c4");264 c4.setNode(text("c4"));265 list2.insertBeforeMorph(c4, c1);266 assertInvariants(assert);267 assert.equalHTML(frag, "c4c1c2c3");268});269QUnit.test("appending a node updates lastNode", function(assert) {270 var c4 = morph("c4");271 c4.setNode(text("c4"));272 list2.appendMorph(c4);273 assertInvariants(assert);274 assert.equalHTML(frag, "c1c2c3c4");275});276QUnit.test("moving a morph from one list to another updates firstNode", function(assert) {277 var list3 = new MorphList(dom);278 var secondMiddle = morph("secondMiddle");279 secondMiddle.setMorphList(list3);280 list.appendMorph(secondMiddle);281 var morph1 = morph("morph1");282 list2.appendMorph(morph1);283 assertInvariants(assert);284 assertChildMorphs(assert, list2, [ c1, c2, c3, morph1 ]);285 list3.appendMorph(morph1);286 assertInvariants(assert);287 assertChildMorphs(assert, list2, [ c1, c2, c3 ]);288 assertChildMorphs(assert, list3, [ morph1 ]);...
invariants.spec.js
Source:invariants.spec.js
...23 ].map(name => sinon.stub(assertInvariants, name));24 // Need to explicitly do this because sinon-test seems to not be 25 // picking up on our stubs26 try {27 assertInvariants(data);28 for (let assertion of assertions)29 expect(assertion).to.have.been.calledWith(data);30 } finally {31 assertions.forEach(assertion => assertion.restore());32 }33 });34 it('should collect all InvariantErrors and throw them as an AggregateError at the end', function() {35 data = {};36 let assertions = [37 'assertHaveIDs',38 'assertHaveIndices',39 'assertHaveNames',40 'assertNoLabels',41 'assertModuleComponentsResolveUnambiguously',...
Using AI Code Generation
1var wpt = require('webpagetest');2var assert = require('assert');3var webPageTest = new wpt('www.webpagetest.org');4 if (err) {5 console.log(err);6 } else {7 webPageTest.getInvariants(data.data.testId, function (err, data) {8 if (err) {9 console.log(err);10 } else {11 console.log(JSON.stringify(data));12 assert.equal(data.data.median.firstView.TTFB, 0.5);13 assert.equal(data.data.median.firstView.render, 0.6);14 assert.equal(data.data.median.firstView.fullyLoaded, 0.7);15 assert.equal(data.data.median.firstView.docTime, 0.8);16 assert.equal(data.data.median.firstView.SpeedIndex, 0.9);17 assert.equal(data.data.median.firstView.visualComplete, 1.0);18 assert.equal(data.data.median.firstView.lastVisualChange, 1.1);19 assert.equal(data.data.median.firstView.firstPaint, 1.2);20 assert.equal(data.data.median.firstView.loadTime, 1.3);21 assert.equal(data.data.median.firstView.fullyLoaded, 1.4);22 assert.equal(data.data.median.firstView.fullyLoadedCPU, 1.5);23 assert.equal(data.data.median.firstView.fullyLoadedCPUPct, 1.6);24 assert.equal(data.data.median.firstView.firstContentfulPaint, 1.7);25 assert.equal(data.data.median.firstView.firstMeaningfulPaint, 1.8);26 assert.equal(data.data.median.firstView.firstVisualChange, 1.9);27 assert.equal(data.data.median.firstView.lastVisualChange, 2.0);28 assert.equal(data.data.median.firstView.fullyLoaded, 2.1);29 assert.equal(data.data.median.firstView.fullyLoadedCPU, 2.2);30 assert.equal(data.data.median.firstView.fullyLoadedCPUPct, 2.3);31 }32 });33 }34});
Using AI Code Generation
1const assert = require('assert');2const wpt = require('wpt-runner');3const fs = require('fs');4const path = require('path');5const parse5 = require('parse5');6const { JSDOM } = require('jsdom');7const { promisify } = require('util');8const readFileAsync = promisify(fs.readFile);9const writeFileAsync = promisify(fs.writeFile);10const appendFileAsync = promisify(fs.appendFile);11const getHtml = async () => {12 const html = await readFileAsync(path.resolve(__dirname, 'index.html'), 'utf8');13 return html;14};15const getDocument = async () => {16 const html = await getHtml();17 const document = new JSDOM(html).window.document;18 return document;19};20const getDocumentTree = async () => {21 const html = await getHtml();22 const documentTree = parse5.parse(html);23 return documentTree;24};25const getSelector = async () => {26 const html = await getHtml();27 const document = new JSDOM(html).window.docum
Using AI Code Generation
1var assertInvariants = function() {2 if (document.getElementById('result').innerHTML != 'PASS') {3 document.getElementById('result').innerHTML = 'FAIL';4 }5 return true;6}7var test = async_test('Test to check if invariants are being maintained');8var iframe = document.createElement('iframe');9document.body.appendChild(iframe);10iframe.onload = test.step_func(function() {11 var iframeDoc = iframe.contentDocument;12 var iframeBody = iframeDoc.body;13 var div = iframeDoc.createElement('div');14 div.setAttribute('id', 'test');15 div.setAttribute('style', 'height:200px; overflow:scroll;');16 var innerDiv = iframeDoc.createElement('div');17 innerDiv.setAttribute('style', 'height:400px;');18 div.appendChild(innerDiv);19 iframeBody.appendChild(div);20 div.scrollTop = 400;21 div.scrollTop = 0;22 var result = assertInvariants();23 if (result) {24 document.getElementById('result').innerHTML = 'PASS';25 } else {26 document.getElementById('result').innerHTML = 'FAIL';27 }28 test.done();29});30var assertInvariants = function() {31 if (document.getElementById('result').innerHTML != 'PASS') {32 document.getElementById('result').innerHTML = 'FAIL';33 }34 return true;35}36var test = async_test('Test to check if invariants are being maintained');37var iframe = document.createElement('iframe');38document.body.appendChild(iframe);39iframe.onload = test.step_func(function() {40 var iframeDoc = iframe.contentDocument;41 var iframeBody = iframeDoc.body;42 var div = iframeDoc.createElement('div');43 div.setAttribute('id', 'test');44 div.setAttribute('style', 'height:200px; overflow:scroll;');45 var innerDiv = iframeDoc.createElement('div');46 innerDiv.setAttribute('
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.
LambdaTest Learning Hubs:
- JUnit Tutorial
- TestNG Tutorial
- Webdriver Tutorial
- WebDriverIO Tutorial
- Protractor Tutorial
- Selenium 4 Tutorial
- Jenkins Tutorial
- NUnit Tutorial
- Jest Tutorial
- Playwright Tutorial
- Cypress Tutorial
- PyTest Tutorial
YouTube
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Run wpt automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
