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How to use expectContexts method in Playwright Internal
Best JavaScript code snippet using playwright-internal
index.test.js
Source:index.test.js 
1const { JSDOM } = require("jsdom");2const findStackingContexts = require("./");3describe("findStackingContexts", () => {4 it("returns the html node last", () => {5 const dom = new JSDOM('<html><body><div id="test-el"></div></body></html>');6 const testEl = dom.window.document.getElementById("test-el");7 const contexts = findStackingContexts(testEl, dom.window);8 expect(contexts).toBeInstanceOf(Array);9 expect(contexts).toHaveLength(1);10 expect(contexts[0].nodeName).toBe("HTML");11 });12 describe("developer experience", () => {13 afterEach(() => {14 delete global.window;15 });16 it("uses the global window object if one is not supplied", () => {17 const dom = new JSDOM(18 '<html><body><div id="test-el"></div></body></html>'19 );20 const testEl = dom.window.document.getElementById("test-el");21 global.window = dom.window;22 const contexts = findStackingContexts(testEl);23 // It returned successfully.24 expect(contexts).toHaveLength(1);25 });26 });27 describe("matching elements", () => {28 // Test cases taken from MDN29 // https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Positioning/Understanding_z_index/The_stacking_context#The_stacking_context30 it("Root element of the document (<html>)", () => {31 const dom = new JSDOM(32 '<html><body><div id="test-el"></div></body></html>'33 );34 const testEl = dom.window.document.getElementById("test-el");35 const contexts = findStackingContexts(testEl, dom.window);36 expect(contexts).toBeInstanceOf(Array);37 expect(contexts).toHaveLength(1);38 expect(contexts[0].nodeName).toBe("HTML");39 });40 it("Element with a position value absolute or relative and z-index value other than auto.", () => {41 const absoluteWithNoZIndex = new JSDOM(42 `<div style="position: absolute;">43 <div id="test-el"></div>44 </div>`45 );46 const absoluteWithAutoZIndex = new JSDOM(47 `<div style="position: absolute; z-index: auto;">48 <div id="test-el"></div>49 </div>`50 );51 const absoluteWithZIndex = new JSDOM(52 `<div id="target" style="position: absolute; z-index: 1;">53 <div id="test-el"></div>54 </div>`55 );56 const relativeWithNoZIndex = new JSDOM(57 `<div style="position: relative;">58 <div id="test-el"></div>59 </div>`60 );61 const relativeWithAutoZIndex = new JSDOM(62 `<div style="position: relative; z-index: auto;">63 <div id="test-el"></div>64 </div>`65 );66 const relativeWithZIndex = new JSDOM(67 `<div id="target" style="position: relative; z-index: 1;">68 <div id="test-el"></div>69 </div>`70 );71 const expectNoContext = [72 absoluteWithNoZIndex,73 absoluteWithAutoZIndex,74 relativeWithNoZIndex,75 relativeWithAutoZIndex,76 ];77 const expectContext = [absoluteWithZIndex, relativeWithZIndex];78 expectNoContext.forEach((dom) => {79 const testEl = dom.window.document.getElementById("test-el");80 const contexts = findStackingContexts(testEl, dom.window);81 expect(contexts).toHaveLength(1);82 });83 expectContext.forEach((dom) => {84 const testEl = dom.window.document.getElementById("test-el");85 const contexts = findStackingContexts(testEl, dom.window);86 expect(contexts).toHaveLength(2);87 expect(contexts[0]).toHaveProperty("id", "target");88 });89 });90 it("Element with a position value fixed or sticky (sticky for all mobile browsers, but not older desktop).", () => {91 const fixed = new JSDOM(92 `<div id="target" style="position: fixed;">93 <div id="test-el"></div>94 </div>`95 );96 const sticky = new JSDOM(97 `<div id="target" style="position: sticky;">98 <div id="test-el"></div>99 </div>`100 );101 const expectContext = [fixed, sticky];102 expectContext.forEach((dom) => {103 const testEl = dom.window.document.getElementById("test-el");104 const contexts = findStackingContexts(testEl, dom.window);105 expect(contexts).toHaveLength(2);106 expect(contexts[0]).toHaveProperty("id", "target");107 });108 });109 it("Element that is a child of a flex (flexbox) container, with z-index value other than auto.", () => {110 const childOfFlexWithNoZIndex = new JSDOM(`111 <div style="display: flex;">112 <div>113 <div id="test-el"></div>114 </div>115 </div>116 `);117 const childOfFlexWithAutoZIndex = new JSDOM(`118 <div style="display: flex;">119 <div style="z-index: auto;">120 <div id="test-el"></div>121 </div>122 </div>123 `);124 const childOfFlexWithZIndex = new JSDOM(`125 <div style="display: flex;">126 <div id="target" style="z-index: 1;">127 <div id="test-el"></div>128 </div>129 </div>130 `);131 const expectNoContexts = [132 childOfFlexWithNoZIndex,133 childOfFlexWithAutoZIndex,134 ];135 const expectContexts = [childOfFlexWithZIndex];136 expectNoContexts.forEach((dom) => {137 const testEl = dom.window.document.getElementById("test-el");138 const contexts = findStackingContexts(testEl, dom.window);139 expect(contexts).toHaveLength(1);140 });141 expectContexts.forEach((dom) => {142 const testEl = dom.window.document.getElementById("test-el");143 const contexts = findStackingContexts(testEl, dom.window);144 expect(contexts).toHaveLength(2);145 expect(contexts[0]).toHaveProperty("id", "target");146 });147 });148 it("Element that is a child of a grid (grid) container, with z-index value other than auto.", () => {149 const childOfGridWithNoZIndex = new JSDOM(`150 <div style="display: grid;">151 <div>152 <div id="test-el"></div>153 </div>154 </div>155 `);156 const childOfGridWithAutoZIndex = new JSDOM(`157 <div style="display: grid;">158 <div style="z-index: auto;">159 <div id="test-el"></div>160 </div>161 </div>162 `);163 const childOfGridWithZIndex = new JSDOM(`164 <div style="display: grid;">165 <div id="target" style="z-index: 1;">166 <div id="test-el"></div>167 </div>168 </div>169 `);170 const expectNoContexts = [171 childOfGridWithNoZIndex,172 childOfGridWithAutoZIndex,173 ];174 const expectContexts = [childOfGridWithZIndex];175 expectNoContexts.forEach((dom) => {176 const testEl = dom.window.document.getElementById("test-el");177 const contexts = findStackingContexts(testEl, dom.window);178 expect(contexts).toHaveLength(1);179 });180 expectContexts.forEach((dom) => {181 const testEl = dom.window.document.getElementById("test-el");182 const contexts = findStackingContexts(testEl, dom.window);183 expect(contexts).toHaveLength(2);184 expect(contexts[0]).toHaveProperty("id", "target");185 });186 });187 it("Element with a opacity value less than 1 (See the specification for opacity).", () => {188 const opacityOfOne = new JSDOM(`189 <div style="opacity: 1;">190 <div id="test-el"></div>191 </div>192 `);193 const opacityOfFiveTenths = new JSDOM(`194 <div id="target" style="opacity: 0.5;">195 <div id="test-el"></div>196 </div>197 `);198 const opacityOfZero = new JSDOM(`199 <div id="target" style="opacity: 0;">200 <div id="test-el"></div>201 </div>202 `);203 const expectNoContexts = [opacityOfOne];204 const expectContexts = [opacityOfFiveTenths, opacityOfZero];205 expectNoContexts.forEach((dom) => {206 const testEl = dom.window.document.getElementById("test-el");207 const contexts = findStackingContexts(testEl, dom.window);208 expect(contexts).toHaveLength(1);209 });210 expectContexts.forEach((dom) => {211 const testEl = dom.window.document.getElementById("test-el");212 const contexts = findStackingContexts(testEl, dom.window);213 expect(contexts).toHaveLength(2);214 expect(contexts[0]).toHaveProperty("id", "target");215 });216 });217 it("Element with a mix-blend-mode value other than normal.", () => {218 const mixBlendModeNormal = new JSDOM(`219 <div style="mix-blend-mode: normal;">220 <div id="test-el"></div>221 </div>222 `);223 const mixBlendModeMultiply = new JSDOM(`224 <div id="target" style="mix-blend-mode: multiply;">225 <div id="test-el"></div>226 </div>227 `);228 const expectNoContexts = [mixBlendModeNormal];229 const expectContexts = [mixBlendModeMultiply];230 expectNoContexts.forEach((dom) => {231 const testEl = dom.window.document.getElementById("test-el");232 const contexts = findStackingContexts(testEl, dom.window);233 expect(contexts).toHaveLength(1);234 });235 expectContexts.forEach((dom) => {236 const testEl = dom.window.document.getElementById("test-el");237 const contexts = findStackingContexts(testEl, dom.window);238 expect(contexts).toHaveLength(2);239 expect(contexts[0]).toHaveProperty("id", "target");240 });241 });242 describe("Element with any of the following properties with value other than `none`:", () => {243 const properties = [244 "transform",245 "filter",246 // NOTE: `perspective` does not seem to be supported by the JSDOM CSSOM247 // "perspective",248 "clip-path",249 "mask",250 "mask-image",251 "mask-border",252 ];253 properties.forEach((property) => {254 // Disabling because `property` is promised to be a string255 // eslint-disable-next-line jest/valid-title256 it(property, () => {257 const propertyWithNone = new JSDOM(`258 <div style="${property}: none;">259 <div id="test-el"></div>260 </div>261 `);262 const propertyWithRandomValue = new JSDOM(`263 <div id="target" style="${property}: random-value;">264 <div id="test-el"></div>265 </div>266 `);267 const expectNoContexts = [propertyWithNone];268 const expectContexts = [propertyWithRandomValue];269 expectNoContexts.forEach((dom) => {270 const testEl = dom.window.document.getElementById("test-el");271 const contexts = findStackingContexts(testEl, dom.window);272 expect(contexts).toHaveLength(1);273 });274 expectContexts.forEach((dom) => {275 const testEl = dom.window.document.getElementById("test-el");276 const contexts = findStackingContexts(testEl, dom.window);277 expect(contexts).toHaveLength(2);278 expect(contexts[0]).toHaveProperty("id", "target");279 });280 });281 });282 });283 it("Element with a `isolation` value `isolate`.", () => {284 const isolationInitial = new JSDOM(`285 <div style="isolation: initial;">286 <div id="test-el"></div>287 </div>288 `);289 const isolationIsolate = new JSDOM(`290 <div id="target" style="isolation: isolate;">291 <div id="test-el"></div>292 </div>293 `);294 const expectNoContexts = [isolationInitial];295 const expectContexts = [isolationIsolate];296 expectNoContexts.forEach((dom) => {297 const testEl = dom.window.document.getElementById("test-el");298 const contexts = findStackingContexts(testEl, dom.window);299 expect(contexts).toHaveLength(1);300 });301 expectContexts.forEach((dom) => {302 const testEl = dom.window.document.getElementById("test-el");303 const contexts = findStackingContexts(testEl, dom.window);304 expect(contexts).toHaveLength(2);305 expect(contexts[0]).toHaveProperty("id", "target");306 });307 });308 // Skipped because JSDOM CSSOM does support the vendor prefixed value.309 // eslint-disable-next-line jest/no-disabled-tests310 it.skip("Element with a `-webkit-overflow-scrolling` value `touch`.", () => {311 const webkitOverflowScrollingInitial = new JSDOM(`312 <div style="-webkit-overflow-scrolling: initial;">313 <div id="test-el"></div>314 </div>315 `);316 const WebkitOverflowScrollingTouch = new JSDOM(`317 <div id="target" style="-webkit-overflow-scrolling: touch;">318 <div id="test-el"></div>319 </div>320 `);321 const expectNoContexts = [webkitOverflowScrollingInitial];322 const expectContexts = [WebkitOverflowScrollingTouch];323 expectNoContexts.forEach((dom) => {324 const testEl = dom.window.document.getElementById("test-el");325 const contexts = findStackingContexts(testEl, dom.window);326 expect(contexts).toHaveLength(1);327 });328 expectContexts.forEach((dom) => {329 const testEl = dom.window.document.getElementById("test-el");330 const contexts = findStackingContexts(testEl, dom.window);331 expect(contexts).toHaveLength(2);332 expect(contexts[0]).toHaveProperty("id", "target");333 });334 });335 it("Element with a will-change value specifying any property that would create a stacking context on non-initial value", () => {336 const nonStackingValue = new JSDOM(`337 <div style="will-change: display">338 <div id="test-el"></div>339 </div>340 `);341 const stackingValue = new JSDOM(`342 <div id="target" style="will-change: position">343 <div id="test-el"></div>344 </div>345 `);346 const stackingValueInList = new JSDOM(`347 <div id="target" style="will-change: font, position;">348 <div id="test-el"></div>349 </div>350 `);351 const expectNoContexts = [nonStackingValue];352 const expectContexts = [stackingValue, stackingValueInList];353 expectNoContexts.forEach((dom) => {354 const testEl = dom.window.document.getElementById("test-el");355 const contexts = findStackingContexts(testEl, dom.window);356 expect(contexts).toHaveLength(1);357 });358 expectContexts.forEach((dom) => {359 const testEl = dom.window.document.getElementById("test-el");360 const contexts = findStackingContexts(testEl, dom.window);361 expect(contexts).toHaveLength(2);362 expect(contexts[0]).toHaveProperty("id", "target");363 });364 });365 it("Element with a contain value of layout, or paint, or a composite value that includes either of them.", () => {366 const noContainValue = new JSDOM(`367 <div style="contain: size">368 <div id="test-el"></div>369 </div>370 `);371 const containLayout = new JSDOM(`372 <div id="target" style="contain: layout;">373 <div id="test-el"></div>374 </div>375 `);376 const containPaint = new JSDOM(`377 <div id="target" style="contain: paint;">378 <div id="test-el"></div>379 </div>380 `);381 const containSizeLayoutPaint = new JSDOM(`382 <div id="target" style="contain: size layout paint;">383 <div id="test-el"></div>384 </div>385 `);386 const containStrict = new JSDOM(`387 <div id="target" style="contain: strict;">388 <div id="test-el"></div>389 </div>390 `);391 const containContent = new JSDOM(`392 <div id="target" style="contain: content;">393 <div id="test-el"></div>394 </div>395 `);396 const expectNoContexts = [noContainValue];397 const expectContexts = [398 containLayout,399 containPaint,400 containSizeLayoutPaint,401 containStrict,402 containContent,403 ];404 expectNoContexts.forEach((dom) => {405 const testEl = dom.window.document.getElementById("test-el");406 const contexts = findStackingContexts(testEl, dom.window);407 expect(contexts).toHaveLength(1);408 });409 expectContexts.forEach((dom) => {410 const testEl = dom.window.document.getElementById("test-el");411 const contexts = findStackingContexts(testEl, dom.window);412 expect(contexts).toHaveLength(2);413 expect(contexts[0]).toHaveProperty("id", "target");414 });415 });416 });417 it("properly skips over invalid contexts", () => {418 const noValidPosition = new JSDOM(`419 <div id="target" style="z-index: 1;">420 <div id="test-el"></div>421 </div>422 `);423 const expectNoContexts = [noValidPosition];424 expectNoContexts.forEach((dom) => {425 const testEl = dom.window.document.getElementById("test-el");426 const contexts = findStackingContexts(testEl, dom.window);427 expect(contexts).toHaveLength(1);428 });429 });...
Using AI Code Generation
1const { test, expect } = require('@playwright/test');2test.describe('test', () => {3 test.beforeEach(async ({ page }) => {4 });5 test('test', async ({ page }) => {6 await page.click('text=Get Started');7 });8});9const { test, expect } = require('@playwright/test');10test.describe('test', () => {11 test.beforeEach(async ({ page }) => {12 });13 test('test', async ({ page }) => {14 await page.click('text=Get Started');15 });16});17const { test, expect } = require('@playwright/test');18test.describe('test', () => {19 test.beforeEach(async ({ page }) => {20 });21 test('test', async ({ page }) => {22 await page.click('text=Get Started');23 });24});25const { test, expect } = require('@playwright/test');26test.describe('test', () => {27 test.beforeEach(async ({ page }) => {28 });29 test('test', async ({ page }) => {30 await page.click('text=Get Started');31 });32});33const { test, expect } = require('@playwright/test');34test.describe('test', () => {35 test.beforeEach(async ({ page }) => {36 });37 test('test', async ({ page }) => {38 await page.click('text=Get Started');
Using AI Code Generation
1const { expectContexts } = require('playwright-core/lib/server/browserType');2const { chromium } = require('playwright-core');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 await context.newPage();7 await expectContexts(browser, 1);8 await browser.close();9})();
Using AI Code Generation
1const { expectContexts } = require('@playwright/test/lib/server/traceViewer/api');2const { test } = require('@playwright/test');3test('test', async ({ page }) => {4 expectContexts([5 {6 },7 ]);8});9expectContexts(contexts)10expectContexts([11 {12 },13]);
Using AI Code Generation
1const { test, expect } = require('@playwright/test');2const { expectContexts } = require('@playwright/test/lib/server/expectContexts');3test('expectContexts', async ({ context, page }) => {4 await expectContexts(context, [5 {6 },7 ]);8});9const { test, expect } = require('@playwright/test');10test('expect', async ({ context, page }) => {11 const newPage = await context.newPage();12 await expect(newPage).toHaveTitle('Playwright: Node.js library to automate Chromium, Firefox and WebKit');13});14const { test, expect } = require('@playwright/test');15test('expect', async ({ context, page }) => {16 const newPage = await context.newPage();17 await expect(context).toHaveTitle('Playwright: Node.js library to automate Chromium, Firefox and WebKit');18});
Using AI Code Generation
1const { expectContexts } = require('@playwright/test/lib/server/expect');2const { expect } = require('expect');3(async () => {4 const contexts = await expectContexts();5 expect(contexts.length).toBe(1);6 expect(contexts[0].name).toBe('default');7 expect(contexts[0].pageCount).toBe(1);8})();
Using AI Code Generation
1const { expectContexts } = require('playwright/lib/server/browserContext');2const { expect } = require('chai');3describe('test', () => {4 it('test', () => {5 expectContexts(contexts, expectedContexts);6 });7});8You are not. The expectContexts method is not exported from the playwright module. You can use it by importing it directly from the playwright/lib/server/browserContext module:9const { expectContexts } = require('playwright/lib/server/browserContext');
Using AI Code Generation
1const { chromium } = require('playwright');2const { expectContexts } = require('playwright/lib/server/browserContext');3(async () => {4 const browser = await chromium.launch();5 const context = await browser.newContext();6 await context.close();7 await expectContexts(browser, { created: 1, destroyed: 1 });8 await browser.close();9})();
Using AI Code Generation
1const { expectContexts } = require('@playwright/test/internal');2const { expect } = require('expect');3const { expectContexts } = require('@playwright/test/internal');4const { expect } = require('expect');5test.describe('My Test Suite', () => {6 test('My Test', async ({ page }) => {7 });8});9import { expectContexts } from '@playwright/test/internal';10import { expect } from 'expect';11test.describe('My Test Suite', () => {12 test('My Test', async ({ page }) => {13 });14});15const { expectContexts } = require('@playwright/test/internal');16const { expect } = require('expect');17describe('My Test Suite', () => {18 it('My Test', async ({ page }) => {
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