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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('
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