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How to use ownKeys method in Playwright Internal

Best JavaScript code snippet using playwright-internal

proxy-own-keys.js

Source:proxy-own-keys.js

...26{27    let error = null;28    let target = { };29    let handler = {30        get ownKeys() {31            error = new Error;32            throw error;33        }34    };35    let proxy = new Proxy(target, handler);36    for (let i = 0; i < 500; i++) {37        let threw = false;38        try {39            Object.keys(proxy);40        } catch(e) {41            threw = true;42            assert(e === error);43        }44        assert(threw);45    }46}47{48    let target = {49        x: 4050    };51    let called = false;52    let handler = {53        ownKeys: function(theTarget) {54            called = true;55            return ["1", 2, 3];56        }57    };58    let proxy = new Proxy(target, handler);59    for (let i = 0; i < 500; i++) {60        let threw = false;61        try {62            Object.keys(proxy);63        } catch(e) {64            threw = true;65            assert(e.toString() === "TypeError: Proxy handler's 'ownKeys' method must return an array-like object containing only Strings and Symbols");66        }67        assert(threw);68        assert(called);69        called = false;70    }71}72{73    let target = { };74    Object.defineProperty(target, "x", {75        configurable: false,76        enumerable: true,77        value: 40078    });79    let called = false;80    let handler = {81        ownKeys: function(theTarget) {82            called = true;83            return [];84        }85    };86    let proxy = new Proxy(target, handler);87    for (let i = 0; i < 500; i++) {88        let threw = false;89        try {90            Object.keys(proxy);91        } catch(e) {92            threw = true;93            assert(e.toString() === "TypeError: Proxy object's 'target' has the non-configurable property 'x' that was not in the result from the 'ownKeys' trap");94        }95        assert(threw);96        assert(called);97        called = false;98    }99}100{101    let target = { };102    Object.defineProperty(target, "x", {103        configurable: true,104        enumerable: true,105        value: 400106    });107    Object.preventExtensions(target);108    let called = false;109    let handler = {110        ownKeys: function(theTarget) {111            called = true;112            return [];113        }114    };115    let proxy = new Proxy(target, handler);116    for (let i = 0; i < 500; i++) {117        let threw = false;118        try {119            Object.keys(proxy);120        } catch(e) {121            threw = true;122            assert(e.toString() === "TypeError: Proxy object's non-extensible 'target' has configurable property 'x' that was not in the result from the 'ownKeys' trap");123        }124        assert(threw);125        assert(called);126        called = false;127    }128}129{130    let target = { };131    Object.defineProperty(target, "x", {132        configurable: true,133        enumerable: true,134        value: 400135    });136    Object.preventExtensions(target);137    let called = false;138    let handler = {139        ownKeys: function(theTarget) {140            called = true;141            return ["x", "y"];142        }143    };144    let proxy = new Proxy(target, handler);145    for (let i = 0; i < 500; i++) {146        let threw = false;147        try {148            Object.keys(proxy);149        } catch(e) {150            threw = true;151            assert(e.toString() === "TypeError: Proxy handler's 'ownKeys' method returned a key that was not present in its non-extensible target");152        }153        assert(threw);154        assert(called);155        called = false;156    }157}158{159    let target = {};160    let called1 = false;161    let called2 = false;162    Object.defineProperty(target, 'a', { value: 42, configurable: false });163    let p1 = new Proxy(target, {164        ownKeys() {165            called1 = true;166            return ['a', 'a'];167        }168    });169    let p2 = new Proxy(p1, {170        ownKeys() {171            called2 = true;172            return ['a'];173        }174    });175    for (let i = 0; i < 500; i++) {176        // FIXME: we may update the spec to make this test not throw.177        // see: https://github.com/tc39/ecma262/pull/594178        let threw = false;179        try {180            Reflect.ownKeys(p2);181        } catch(e) {182            assert(e.toString() === "TypeError: Proxy object's 'target' has the non-configurable property 'a' that was not in the result from the 'ownKeys' trap");183            threw = true;184        }185        assert(threw);186        assert(called1);187        assert(called2);188    }189}190{191    let target = {};192    let called1 = false;193    let called2 = false;194    Object.defineProperty(target, 'a', { value: 42, configurable: true });195    Object.preventExtensions(target);196    let p1 = new Proxy(target, {197        ownKeys() {198            called1 = true;199            return ['a', 'a'];200        }201    });202    let p2 = new Proxy(p1, {203        ownKeys() {204            called2 = true;205            return ['a'];206        }207    });208    for (let i = 0; i < 500; i++) {209        // FIXME: we may update the spec to make this test not throw.210        // see: https://github.com/tc39/ecma262/pull/594211        let threw = false;212        try {213            Reflect.ownKeys(p2);214        } catch(e) {215            assert(e.toString() === "TypeError: Proxy object's non-extensible 'target' has configurable property 'a' that was not in the result from the 'ownKeys' trap");216            threw = true;217        }218        assert(threw);219        assert(called1);220        assert(called2);221    }222}223{224    let target = { };225    Object.defineProperty(target, "x", {226        configurable: true,227        enumerable: true,228        value: 400229    });230    Object.preventExtensions(target);231    let called = false;232    let handler = {233        ownKeys: function(theTarget) {234            called = true;235            return ["x", "x"];236        }237    };238    let proxy = new Proxy(target, handler);239    for (let i = 0; i < 500; i++) {240        Object.keys(proxy);241        assert(called);242        called = false;243    }244}245{246    let target = { };247    let handler = {248        ownKeys: 45249    };250    let proxy = new Proxy(target, handler);251    for (let i = 0; i < 500; i++) {252        let threw = false;253        try {254            Object.keys(proxy);255        } catch(e) {256            threw = true;257            assert(e.toString() === "TypeError: 'ownKeys' property of a Proxy's handler should be callable");258        }259        assert(threw);260    }261}262function shallowEq(a, b) {263    if (a.length !== b.length)264        return false;265    for (let i = 0; i < a.length; i++) {266        if (a[i] !== b[i])267            return false;268    }269    return true;270}271{272    let target = {273        x: 40274    };275    let called = false;276    let arr = ["a", "b", "c"];277    let handler = {278        ownKeys: function(theTarget) {279            called = true;280            return arr;281        }282    };283    let proxy = new Proxy(target, handler);284    for (let i = 0; i < 500; i++) {285        let result = Object.keys(proxy);286        assert(result !== arr);287        assert(shallowEq(result, arr));288        assert(called);289        called = false;290    }291}292{293    let target = {294        x: 40295    };296    let called = false;297    let arr = ["a", "b", "c"];298    let handler = {299        ownKeys: function(theTarget) {300            called = true;301            return arr;302        }303    };304    let proxy = new Proxy(target, handler);305    for (let i = 0; i < 500; i++) {306        let result = Reflect.ownKeys(proxy);307        assert(result !== arr);308        assert(shallowEq(result, arr));309        assert(called);310        called = false;311    }312}313{314    let target = {315        x: 40316    };317    let called = false;318    let s1 = Symbol();319    let s2 = Symbol();320    let arr = ["a", "b", s1, "c", s2];321    let handler = {322        ownKeys: function(theTarget) {323            called = true;324            return arr;325        }326    };327    let proxy = new Proxy(target, handler);328    for (let i = 0; i < 500; i++) {329        let result = Object.getOwnPropertySymbols(proxy);330        assert(shallowEq(result, [s1, s2]));331        assert(called);332        called = false;333    }334}335{336    let target = {337        x: 40338    };339    let called = false;340    let s1 = Symbol();341    let s2 = Symbol();342    let arr = ["a", "b", s1, "c", s2];343    let handler = {344        ownKeys: function(theTarget) {345            called = true;346            return arr;347        }348    };349    let proxy = new Proxy(target, handler);350    for (let i = 0; i < 500; i++) {351        let result = Object.keys(proxy);352        assert(shallowEq(result, ["a", "b", "c"]));353        assert(called);354        called = false;355    }356}357{358    let target = {359        x: 40360    };361    let called = false;362    let s1 = Symbol();363    let s2 = Symbol();364    let arr = ["a", "b", s1, "c", s2];365    let handler = {366        ownKeys: function(theTarget) {367            called = true;368            return arr;369        }370    };371    let proxy = new Proxy(target, handler);372    for (let i = 0; i < 500; i++) {373        let result = Reflect.ownKeys(proxy);374        assert(shallowEq(result, ["a", "b", "c", s1, s2]));375        assert(called);376        called = false;377    }378}379{380    let target = {381        x: 40382    };383    let called = false;384    let s1 = Symbol();385    let s2 = Symbol();386    let arr = ["a", "b", s1, "c", s2];387    let handler = {388        getOwnPropertyDescriptor: () => {389            return { enumerable: true, configurable: true }390        },391        ownKeys: function(theTarget) {392            called = true;393            return arr;394        }395    };396    let proxy = new Proxy(target, handler);397    for (let i = 0; i < 500; i++) {398        let set = new Set;399        for (let p in proxy)400            set.add(p);401        assert(set.size === 3);402        assert(set.has("a"));403        assert(set.has("b"));404        assert(set.has("c"));405        assert(called);406        called = false;407    }408}409{410    let target = {411        x: 40412    };413    let called = false;414    let s1 = Symbol();415    let s2 = Symbol();416    let arr = ["a", "b", s1, "c", s2];417    let handler = {418        getOwnPropertyDescriptor: () => {419            return { enumerable: true, configurable: true }420        },421        ownKeys: function(theTarget) {422            called = true;423            return arr;424        }425    };426    let proxy = new Proxy(target, handler);427    for (let i = 0; i < 500; i++) {428        let set = new Set;429        for (let p in proxy)430            set.add(p);431        if (i === 40) { // Make sure we don't cache the result.432            arr.push("d");433        }434        assert(set.size === i > 40 ? 4 : 3);435        assert(set.has("a"));436        assert(set.has("b"));437        assert(set.has("c"));438        if (i > 40)439            assert(set.has("d"));440        assert(called);441        called = false;442    }443}444{445    let target = {446        x: 40447    };448    let called = false;449    let s1 = Symbol();450    let s2 = Symbol();451    let arr = ["a", "b", s1, "c", s2];452    let handler = {453        getOwnPropertyDescriptor: () => {454            return { enumerable: true, configurable: true }455        },456        ownKeys: function(theTarget) {457            called = true;458            return arr;459        }460    };461    let proxy = new Proxy(target, handler);462    let proxyish = Object.create(proxy, {463        d: { enumerable: true, configurable: true }464    });465    for (let i = 0; i < 500; i++) {466        let set = new Set;467        for (let p in proxyish)468            set.add(p);469        assert(set.size === 4);470        assert(set.has("a"));471        assert(set.has("b"));472        assert(set.has("c"));473        assert(set.has("d"));474        assert(called);475        called = false;476    }477}478{479    let target = {480        x: 40481    };482    let called = false;483    let s1 = Symbol();484    let s2 = Symbol();485    let arr = ["a", "b", s1, "c", s2];486    let handler = {487        getOwnPropertyDescriptor: () => {488            return { enumerable: true, configurable: true }489        },490        ownKeys: function(theTarget) {491            called = true;492            return arr;493        }494    };495    let proxy = new Proxy(target, handler);496    let proxyish = Object.create(proxy, {497        d: { enumerable: true, configurable: true }498    });499    for (let i = 0; i < 500; i++) {500        let set = new Set;501        for (let p in proxyish)502            set.add(p);503        assert(set.size === 4);504        assert(set.has("a"));505        assert(set.has("b"));506        assert(set.has("c"));507        assert(set.has("d"));508        assert(called);509        called = false;510    }511}512{513    let called = false;514    let target = {x: 20, y: 40};515    let handler = {516        ownKeys: null517    };518    let proxy = new Proxy(target, handler);519    for (let i = 0; i < 500; i++) {520        let keys = Object.keys(proxy);521        assert(keys.indexOf("x") !== -1);522        assert(keys.indexOf("y") !== -1);523    }524}525{526    let called = false;527    let target = new Proxy({}, {528        ownKeys: function(theTarget) {529            called = true;530            return Reflect.ownKeys(theTarget);531        }532    });533    let s1 = Symbol();534    let s2 = Symbol();535    let arr = ["a", "b", s1, "c", s2];536    let handler = {537        ownKeys: function(theTarget) {538            return arr;539        }540    };541    let proxy = new Proxy(target, handler);542    for (let i = 0; i < 500; i++) {543        let keys = Object.keys(proxy);544        assert(called);...

proxy-keys.js

Source:proxy-keys.js

...71    value: 372  }73};74let handler = {75  get ownKeys() {76    log.push({77      name: "get handler.ownKeys",78      receiver: this79    });80    return (...args) => {81      log.push({82        name: "call handler.ownKeys",83        receiver: this,84        args85      });86      return ownKeys;87    };88  },89  get getOwnPropertyDescriptor() {...

fec5ce1664d42bc57624cf6ee37d1fca.js

Source:fec5ce1664d42bc57624cf6ee37d1fca.js

...14  }15}16var proxy = new Proxy(target, handler);17// Simple case.18assertEquals(["foo", "bar"], Reflect.ownKeys(proxy));19// Test interesting steps of the algorithm:20// Step 6: Fall through to target.[[OwnPropertyKeys]] if the trap is undefined.21handler.ownKeys = undefined;22assertEquals(["target_one"], Reflect.ownKeys(proxy));23// Step 7: Throwing traps don't crash.24handler.ownKeys = function(target) { throw 1; };25assertThrows("Reflect.ownKeys(proxy)");26// Step 8: CreateListFromArrayLike error cases:27// Returning a non-Object throws.28var keys = 1;29handler.ownKeys = function(target) { return keys; };30assertThrows("Reflect.ownKeys(proxy)", TypeError);31keys = "string";32assertThrows("Reflect.ownKeys(proxy)", TypeError);33keys = Symbol("foo");34assertThrows("Reflect.ownKeys(proxy)", TypeError);35keys = null;36assertThrows("Reflect.ownKeys(proxy)", TypeError);37// "length" property is honored.38keys = { 0: "a", 1: "b", 2: "c" };39keys.length = 0;40assertEquals([], Reflect.ownKeys(proxy));41keys.length = 1;42assertEquals(["a"], Reflect.ownKeys(proxy));43keys.length = 3;44assertEquals(["a", "b", "c"], Reflect.ownKeys(proxy));45// The spec wants to allow lengths up to 2^53, but we can't allocate arrays46// of that size, so we throw even for smaller values.47keys.length = Math.pow(2, 33);48assertThrows("Reflect.ownKeys(proxy)", RangeError);49// Check that we allow duplicated keys.50keys  = ['a', 'a', 'a']51assertEquals(keys, Reflect.ownKeys(proxy));52// Non-Name results throw.53keys = [1];54assertThrows("Reflect.ownKeys(proxy)", TypeError);55keys = [{}];56assertThrows("Reflect.ownKeys(proxy)", TypeError);57keys = [{toString: function() { return "foo"; }}];58assertThrows("Reflect.ownKeys(proxy)", TypeError);59keys = [null];60assertThrows("Reflect.ownKeys(proxy)", TypeError);61// Step 17a: The trap result must include all non-configurable keys.62Object.defineProperty(target, "nonconf", {value: 1, configurable: false});63keys = ["foo"];64assertThrows("Reflect.ownKeys(proxy)", TypeError);65keys = ["nonconf"];66assertEquals(keys, Reflect.ownKeys(proxy));67// Check that we allow duplicated keys.68keys  = ['nonconf', 'nonconf', 'nonconf']69assertEquals(keys, Reflect.ownKeys(proxy));70// Step 19a: The trap result must all keys of a non-extensible target.71Object.preventExtensions(target);72assertThrows("Reflect.ownKeys(proxy)", TypeError);73keys = ["nonconf", "target_one"];74assertEquals(keys, Reflect.ownKeys(proxy));75// Step 20: The trap result must not add keys to a non-extensible target.76keys = ["nonconf", "target_one", "fantasy"];77assertThrows("Reflect.ownKeys(proxy)", TypeError);78// Check that we allow duplicated keys.79keys  = ['nonconf', 'target_one', 'nonconf', 'nonconf', 'target_one',]...

proxies-ownkeys.js

Source:proxies-ownkeys.js

...13  }14}15var proxy = new Proxy(target, handler);16// Simple case.17assertEquals(["foo", "bar"], Reflect.ownKeys(proxy));18// Test interesting steps of the algorithm:19// Step 6: Fall through to target.[[OwnPropertyKeys]] if the trap is undefined.20handler.ownKeys = undefined;21assertEquals(["target_one"], Reflect.ownKeys(proxy));22// Step 7: Throwing traps don't crash.23handler.ownKeys = function(target) { throw 1; };24assertThrows("Reflect.ownKeys(proxy)");25// Step 8: CreateListFromArrayLike error cases:26// Returning a non-Object throws.27var keys = 1;28handler.ownKeys = function(target) { return keys; };29assertThrows("Reflect.ownKeys(proxy)", TypeError);30keys = "string";31assertThrows("Reflect.ownKeys(proxy)", TypeError);32keys = Symbol("foo");33assertThrows("Reflect.ownKeys(proxy)", TypeError);34keys = null;35assertThrows("Reflect.ownKeys(proxy)", TypeError);36// "length" property is honored.37keys = { 0: "a", 1: "b", 2: "c" };38keys.length = 0;39assertEquals([], Reflect.ownKeys(proxy));40keys.length = 1;41assertEquals(["a"], Reflect.ownKeys(proxy));42keys.length = 3;43assertEquals(["a", "b", "c"], Reflect.ownKeys(proxy));44// The spec wants to allow lengths up to 2^53, but we can't allocate arrays45// of that size, so we throw even for smaller values.46keys.length = Math.pow(2, 33);47assertThrows("Reflect.ownKeys(proxy)", RangeError);48// Check that we don't allow duplicated keys.49keys  = ['a', 'a', 'a']50assertThrows("Reflect.ownKeys(proxy)", TypeError);51// Non-Name results throw.52keys = [1];53assertThrows("Reflect.ownKeys(proxy)", TypeError);54keys = [{}];55assertThrows("Reflect.ownKeys(proxy)", TypeError);56keys = [{toString: function() { return "foo"; }}];57assertThrows("Reflect.ownKeys(proxy)", TypeError);58keys = [null];59assertThrows("Reflect.ownKeys(proxy)", TypeError);60// Step 17a: The trap result must include all non-configurable keys.61Object.defineProperty(target, "nonconf", {value: 1, configurable: false});62keys = ["foo"];63assertThrows("Reflect.ownKeys(proxy)", TypeError);64keys = ["nonconf"];65assertEquals(keys, Reflect.ownKeys(proxy));66// Check that we don't allow duplicated keys.67keys  = ['nonconf', 'nonconf', 'nonconf']68assertThrows("Reflect.ownKeys(proxy)", TypeError);69// Step 19a: The trap result must all keys of a non-extensible target.70Object.preventExtensions(target);71assertThrows("Reflect.ownKeys(proxy)", TypeError);72keys = ["nonconf", "target_one"];73assertEquals(keys, Reflect.ownKeys(proxy));74// Step 20: The trap result must not add keys to a non-extensible target.75keys = ["nonconf", "target_one", "fantasy"];76assertThrows("Reflect.ownKeys(proxy)", TypeError);77// Check that we don't allow duplicated keys.78keys  = ['nonconf', 'target_one', 'nonconf', 'nonconf', 'target_one',]...

ownKeys.js

Source:ownKeys.js

1/* Any copyright is dedicated to the Public Domain.2 * http://creativecommons.org/licenses/publicdomain/ */3// Reflect.ownKeys(obj) returns an array of an object's own property keys.4// Test that Reflect.ownKeys gets the expected result when applied to various5// objects. (These tests also check the basics: that the result is an array,6// that its prototype is correct, etc.)7var sym = Symbol.for("comet");8var sym2 = Symbol.for("meteor");9var cases = [10    {object: {z: 3, y: 2, x: 1},11     keys: ["z", "y", "x"]},12    {object: [],13     keys: ["length"]},14    {object: new Int8Array(4),15     keys: ["0", "1", "2", "3"]},16    {object: new Proxy({a: 7}, {}),17     keys: ["a"]},18    {object: {[sym]: "ok"},19     keys: [sym]},20    {object: {[sym]: 0,  // test 9.1.12 ordering21              "str": 0,22              "773": 0,23              "0": 0,24              [sym2]: 0,25              "-1": 0,26              "8": 0,27              "second str": 0},28     keys: ["0", "8", "773",  // indexes in numeric order29            "str", "-1", "second str", // strings in insertion order30            sym, sym2]}, // symbols in insertion order31    {object: newGlobal().Math,  // cross-compartment wrapper32     keys: Reflect.ownKeys(Math)}33];34for (var {object, keys} of cases)35    assertDeepEq(Reflect.ownKeys(object), keys);36// Reflect.ownKeys() creates a new array each time it is called.37var object = {}, keys = [];38for (var i = 0; i < 3; i++) {39    var newKeys = Reflect.ownKeys(object);40    assertEq(newKeys !== keys, true);41    keys = newKeys;42}43// Proxy behavior with successful ownKeys() handler44keys = ["str", "0"];45obj = {};46proxy = new Proxy(obj, {47    ownKeys() { return keys; }48});49var actual = Reflect.ownKeys(proxy);50assertDeepEq(actual, keys);  // we get correct answers51assertEq(actual !== keys, true);  // but not the same object52// If a proxy breaks invariants, a TypeError is thrown.53var obj = Object.preventExtensions({});54var proxy = new Proxy(obj, {55    ownKeys() { return ["something"]; }56});57assertThrowsInstanceOf(() => Reflect.ownKeys(proxy), TypeError);58// For more Reflect.ownKeys tests, see target.js....

Using AI Code Generation

1const {chromium} = require('playwright');2(async () => {3  const browser = await chromium.launch({headless: false});4  const context = await browser.newContext();5  const page = await context.newPage();6  const frame = page.mainFrame();7  const elementHandle = await frame.$('input[name="q"]');8  await elementHandle.focus();9  await elementHandle.type('Playwright');10  await page.keyboard.press('Enter');11  await page.waitForSelector('text="Playwright - Google Search"');12  const consoleMessages = await page.evaluate(() => {13    return window.consoleMessages;14  });15  console.log(consoleMessages);16  await browser.close();17})();18const {chromium} = require('playwright');19(async () => {20  const browser = await chromium.launch({headless: false});21  const context = await browser.newContext();22  const page = await context.newPage();23  const frame = page.mainFrame();24  const elementHandle = await frame.$('input[name="q"]');25  await elementHandle.focus();26  await elementHandle.type('Playwright');27  await page.keyboard.press('Enter');28  await page.waitForSelector('text="Playwright - Google Search"');29  const consoleMessages = await page.evaluate(() => {30    return window.consoleMessages;31  });32  console.log(consoleMessages);33  await browser.close();34})();35const {chromium} = require('playwright');36(async () => {37  const browser = await chromium.launch({headless: false});38  const context = await browser.newContext();39  const page = await context.newPage();40  const frame = page.mainFrame();41  const elementHandle = await frame.$('input[name="q"]');42  await elementHandle.focus();43  await elementHandle.type('Playwright');44  await page.keyboard.press('Enter');45  await page.waitForSelector('text="Playwright - Google Search"');46  const consoleMessages = await page.evaluate(() => {47    return window.consoleMessages;48  });49  console.log(consoleMessages);50  await browser.close();51})();52const {chromium} = require('playwright');

Using AI Code Generation

1const {chromium} = require('playwright');2(async () => {3    const browser = await chromium.launch();4    const page = await browser.newPage();5    await page.screenshot({path: 'example.png'});6    await browser.close();7})();8const puppeteer = require('puppeteer');9(async () => {10  const browser = await puppeteer.launch();11  const page = await browser.newPage();12  await page.screenshot({path: 'example.png'});13  await browser.close();14})();15const puppeteer = require('puppeteer-extra');16const StealthPlugin = require('puppeteer-extra-plugin-stealth');17puppeteer.use(StealthPlugin());18(async () => {19  const browser = await puppeteer.launch({ headless: false });20  const page = await browser.newPage();21  await page.screenshot({path: 'example.png'});22  await browser.close();23})();24const puppeteer = require('puppeteer-extra');25const StealthPlugin = require('puppeteer-extra-plugin-stealth');26puppeteer.use(StealthPlugin());27(async () => {28  const browser = await puppeteer.launch({ headless: false });29  const page = await browser.newPage();30  await page.screenshot({path: 'example.png'});31  await browser.close();32})();33const puppeteer = require('puppeteer-extra');34const RecaptchaPlugin = require('puppeteer-extra-plugin-recaptcha');35puppeteer.use(RecaptchaPlugin());36(async () => {37  const browser = await puppeteer.launch({ headless: false });38  const page = await browser.newPage();39  await page.screenshot({path: 'example.png'});40  await browser.close();41})();42const puppeteer = require('puppeteer-extra');43const AdblockerPlugin = require('puppeteer-extra-plugin-adblock

Using AI Code Generation

1const { Playwright } = require('playwright');2const { PlaywrightDispatcher } = Playwright._dispatchers;3const { BrowserContextDispatcher } = PlaywrightDispatcher._dispatchers;4const { PageDispatcher } = BrowserContextDispatcher._dispatchers;5const { FrameDispatcher } = PageDispatcher._dispatchers;6const { ElementHandleDispatcher } = FrameDispatcher._dispatchers;7const { JSHandleDispatcher } = ElementHandleDispatcher._dispatchers;8const { JSHandleDispatcherImpl } = JSHandleDispatcher._implementations;9const { JSHandleDispatcher } = JSHandleDispatcherImpl._dispatchers;10const { ElementHandleDispatcherImpl } = ElementHandleDispatcher._implementations;11const { ElementHandleDispatcher } = ElementHandleDispatcherImpl._dispatchers;12const { FrameDispatcherImpl } = FrameDispatcher._implementations;13const { FrameDispatcher } = FrameDispatcherImpl._dispatchers;14const { PageDispatcherImpl } = PageDispatcher._implementations;15const { PageDispatcher } = PageDispatcherImpl._dispatchers;16const { BrowserContextDispatcherImpl } = BrowserContextDispatcher._implementations;17const { BrowserContextDispatcher } = BrowserContextDispatcherImpl._dispatchers;18const { PlaywrightDispatcherImpl } = PlaywrightDispatcher._implementations;19const { PlaywrightDispatcher } = PlaywrightDispatcherImpl._dispatchers;20const { Playwright } = require('playwright');21const { Playwright } = require('playwright');22const { PlaywrightDispatcher } = Playwright._dispatchers;23const { BrowserContextDispatcher } = PlaywrightDispatcher._dispatchers;24const { PageDispatcher } = BrowserContextDispatcher._dispatchers;25const { FrameDispatcher } = PageDispatcher._dispatchers;26const { ElementHandleDispatcher } = FrameDispatcher._dispatchers;27const { JSHandleDispatcher } = ElementHandleDispatcher._dispatchers;28const { JSHandleDispatcherImpl } = JSHandleDispatcher._implementations;29const { JSHandleDispatcher } = JSHandleDispatcherImpl._dispatchers;30const { ElementHandleDispatcherImpl } = ElementHandleDispatcher._implementations;31const { ElementHandleDispatcher } = ElementHandleDispatcherImpl._dispatchers;32const { FrameDispatcherImpl } = FrameDispatcher._implementations;33const { FrameDispatcher } = FrameDispatcherImpl._dispatchers;34const { PageDispatcherImpl } = PageDispatcher._implementations;35const { PageDispatcher } = PageDispatcherImpl._dispatchers;36const { BrowserContextDispatcherImpl } = Browser

Using AI Code Generation

1const { helper } = require('@playwright/test');2const { assert } = require('chai');3const { test } = require('@playwright/test');4test('test', async ({ page }) => {5  const keys = await helper.getPlaywrightInternal().getSelectedElementsKeys(page);6  assert.deepEqual(keys, ['body', 'html']);7});8  ✓ test (74ms)9  1 passed (94ms)

Using AI Code Generation

1const { Playwright } = require('playwright');2const { Page } = Playwright;3const { PageChannel } = Playwright;4const { PageDispatcher } = Playwright;5const { PageInitializer } = Playwright;6const { Frame } = Playwright;7const { FrameChannel } = Playwright;8const { FrameDispatcher } = Playwright;9const { FrameInitializer } = Playwright;10const { JSHandleChannel } = Playwright;11const { JSHandleDispatcher } = Playwright;12const { JSHandleInitializer } = Playwright;13const { ElementHandleChannel } = Playwright;14const { ElementHandleDispatcher } = Playwright;15const { ElementHandleInitializer } = Playwright;16const { ExecutionContext } = Playwright;17const { ExecutionContextChannel } = Playwright;18const { ExecutionContextDispatcher } = Playwright;19const { ExecutionContextInitializer } = Playwright;20const { ConsoleMessage } = Playwright;21const { ConsoleMessageChannel } = Playwright;22const { ConsoleMessageDispatcher } = Playwright;23const { ConsoleMessageInitializer } = Playwright;24const { Worker } = Playwright;25const { WorkerChannel } = Playwright;26const { WorkerDispatcher } = Playwright;27const { WorkerInitializer } = Playwright;28const { Route } = Playwright;29const { RouteChannel } = Playwright;30const { RouteDispatcher } = Playwright;31const { RouteInitializer } = Playwright;32const { Download } = Playwright;33const { DownloadChannel } = Playwright;34const { DownloadDispatcher } = Playwright;35const { DownloadInitializer } = Playwright;36const { Dialog } = Playwright;37const { DialogChannel } = Playwright;38const { DialogDispatcher } = Playwright;39const { DialogInitializer } = Playwright;40const { WebSocket } = Playwright;41const { WebSocketChannel } = Playwright;42const { WebSocketDispatcher } = Playwright;43const { WebSocketInitializer } = Playwright;44const { Error } = Playwright;45const { ErrorChannel } = Playwright;46const { ErrorDispatcher } = Playwright;47const { ErrorInitializer } = Playwright;48const { Browser } = Playwright;49const { BrowserChannel } = Playwright;50const { BrowserDispatcher } = Playwright;51const { BrowserInitializer } = Playwright;52const { BrowserContext } = Playwright;53const { BrowserContextChannel } = Playwright;54const { BrowserContextDispatcher } = Playwright;55const { BrowserContextInitializer } = Play

Using AI Code Generation

1const { contextBridge, ipcRenderer } = require('electron');2const { internalBinding } = require('electron');3const { BrowserWindow } = require('electron').remote;4const { dialog } = require('electron').remote;5const { app } = require('electron').remote;6const { ipcMain } = require('electron');7const { BrowserView } = require('electron').remote;8const { Menu } = require('electron').remote;9const { MenuItem } = require('electron').remote;10const { Notification } = require('electron').remote;11const { clipboard } = require('electron').remote;12const { shell } = require('electron').remote;13const { screen } = require('electron').remote;14const { nativeImage } = require('electron').remote;15const { nativeTheme } = require('electron').remote;16const { autoUpdater } = require('electron').remote;17const { protocol } = require('electron').remote;18const { session } = require('electron').remote;19const { webContents } = require('electron').remote;20const { powerMonitor } = require('electron').remote;21const { powerSaveBlocker } = require('electron').remote;22const { net } = require('electron').remote;23const { remote } = require('electron');24const { ipcRendererInternal } = internalBinding('electron_common_ipc');25const { v1: uuidv1 } = require('uuid');26const path = require('path');27const fs = require('fs');28const { spawn } = require('child_process');29const os = require('os');30const { ipcRenderer: ipc } = require('electron-better-ipc');31const { NodeVM } = require('vm2');32const { remote } = require('electron');33const { ipcRenderer } = require('electron');34const { internalBinding } = require('electron');35const { BrowserWindow } = require('electron').remote;36const { dialog } = require('electron').remote;37const { app } = require('electron').remote;38const { ipcMain } = require('electron');39const { BrowserView } = require('electron').remote;40const { Menu } = require('electron').remote;41const { MenuItem } = require('electron').remote;42const { Notification } = require('electron').remote;43const { clipboard } = require('electron').remote;44const { shell } = require('electron').remote;45const { screen } = require('electron').remote

Using AI Code Generation

1const { InternalAPI } = require('playwright/lib/internal/api');2const { Page } = require('playwright/lib/server/page');3const { PageProxy } = require('playwright/lib/client/page');4const { FrameProxy } = require('playwright/lib/client/frame');5const page = await context.newPage();6const pageProxy = page._delegate;7const frameProxy = pageProxy.mainFrame();8const internalApi = new InternalAPI(page);9const frame = internalApi._objectForSnapshot(frameProxy);10const keys = await internalApi._ownKeys(frame);11console.log(keys);12const { InternalAPI } = require('playwright/lib/internal/api');13const { Page } = require('playwright/lib/server/page');14const { PageProxy } = require('playwright/lib/client/page');15const { FrameProxy } = require('playwright/lib/client/frame');16const page = await context.newPage();17const pageProxy = page._delegate;18const frameProxy = pageProxy.mainFrame();19const internalApi = new InternalAPI(page);20const frame = internalApi._objectForSnapshot(frameProxy);21const keys = await internalApi._ownKeys(frame);22console.log(keys);

Using AI Code Generation

1const { helper } = require('@playwright/test');2const { getTestType } = require('@playwright/test/lib/testType');3const { TestType } = require('@playwright/test/lib/testType');4const testType = getTestType(TestType.Test);5const test = testType.test;6test.describe('test', () => {7  test.beforeEach(async ({ page }) => {8  });9  test('test', async ({ page }) => {10    const keys = await helper.getTestState(page).ownKeys();11    console.log('keys', keys);12  });13});14const { helper } = require('@playwright/test');15const { getTestType } = require('@playwright/test/lib/testType');16const { TestType } = require('@playwright/test/lib/testType');17const testType = getTestType(TestType.Test);18const test = testType.test;19test.describe('test', () => {20  test.beforeEach(async ({ page }) => {21  });22  test('test', async ({ page }) => {23    const keys = await helper.getTestState(page).ownKeys();24    console.log('keys', keys);25  });26});27const { helper } = require('@playwright/test');28const { getTestType } = require('@playwright/test/lib/testType');29const { TestType } = require('@playwright/test/lib/testType');30const testType = getTestType(TestType.Test);31const test = testType.test;32test.describe('test', () => {33  test.beforeEach(async ({ page }) => {

StackOverFlow community discussions

Questions

Discussion

firefox browser does not start in playwright

Jest + Playwright - Test callbacks of event-based DOM library

Is it possible to get the selector from a locator object in playwright?

How to run a list of test suites in a single file concurrently in jest?

Running Playwright in Azure Function

firefox browser does not start in playwright

I found the error. It was because of some missing libraries need. I discovered this when I downgraded playwright to version 1.9 and ran the the code then this was the error msg:

(node:12876) UnhandledPromiseRejectionWarning: browserType.launch: Host system is missing dependencies!

Some of the Universal C Runtime files cannot be found on the system. You can fix
that by installing Microsoft Visual C++ Redistributable for Visual Studio from:
https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

Full list of missing libraries:
    vcruntime140.dll
    msvcp140.dll
Error
    at Object.captureStackTrace (D:\Projects\snkrs-play\node_modules\playwright\lib\utils\stackTrace.js:48:19)
    at Connection.sendMessageToServer (D:\Projects\snkrs-play\node_modules\playwright\lib\client\connection.js:69:48)
    at Proxy.<anonymous> (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:64:61)
    at D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:64:67
    at BrowserType._wrapApiCall (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:77:34)
    at BrowserType.launch (D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:55:21)
    at D:\Projects\snkrs-play\index.js:4:35
    at Object.<anonymous> (D:\Projects\snkrs-play\index.js:7:3)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:12876) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:12876) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

A list of missing libraries was provided. After successful installments, firefox ran fine. I upgraded again to version 1.10 and firefox still works.

https://stackoverflow.com/questions/66984974/firefox-browser-does-not-start-in-playwright

This question is quite close to a "need more focus" question. But let's try to give it some focus:

Does Playwright has access to the cPicker object on the page? Does it has access to the window object?

Yes, you can access both cPicker and the window object inside an evaluate call.

Should I trigger the events from the HTML file itself, and in the callbacks, print in the DOM the result, in some dummy-element, and then infer from that dummy element text that the callbacks fired?

Exactly, or you can assign values to a javascript variable:

const cPicker = new ColorPicker({
  onClickOutside(e){
  },
  onInput(color){
    window['color'] = color;
  },
  onChange(color){
    window['result'] = color;
  }
})

And then

it('Should call all callbacks with correct arguments', async() => {
    await page.goto(`http://localhost:5000/tests/visual/basic.html`, {waitUntil:'load'})

    // Wait until the next frame
    await page.evaluate(() => new Promise(requestAnimationFrame))

    // Act
   
    // Assert
    const result = await page.evaluate(() => window['color']);
    // Check the value
})

https://stackoverflow.com/questions/65477895/jest-playwright-test-callbacks-of-event-based-dom-library

Well this is one way, but not sure if it will work for all possible locators!.

// Get a selector from a playwright locator
import { Locator } from "@playwright/test";
export function extractSelector(locator: Locator) {
    const selector = locator.toString();
    const parts = selector.split("@");
    if (parts.length !== 2) { throw Error("extractSelector: susupect that this is not a locator"); }
    if (parts[0] !== "Locator") { throw Error("extractSelector: did not find locator"); }
    return parts[1];
}

https://stackoverflow.com/questions/72044959/is-it-possible-to-get-the-selector-from-a-locator-object-in-playwright

Assuming you are not running test with the --runinband flag, the simple answer is yes but it depends ????

There is a pretty comprehensive GitHub issue jest#6957 that explains certain cases of when tests are run concurrently or in parallel. But it seems to depend on a lot of edge cases where jest tries its best to determine the fastest way to run the tests given the circumstances.

To my knowledge there is no way to force jest to run in parallel.

Aside

Have you considered using playwright instead of puppeteer with jest? Playwright has their own internally built testing library called @playwright/test that is used in place of jest with a similar API. This library allows for explicitly defining test groups in a single file to run in parallel (i.e. test.describe.parallel) or serially (i.e. test.describe.serial). Or even to run all tests in parallel via a config option.

// parallel
test.describe.parallel('group', () => {
  test('runs in parallel 1', async ({ page }) => {});
  test('runs in parallel 2', async ({ page }) => {});
});

// serial
test.describe.serial('group', () => {
  test('runs first', async ({ page }) => {});
  test('runs second', async ({ page }) => {});
});

https://stackoverflow.com/questions/73497773/how-to-run-a-list-of-test-suites-in-a-single-file-concurrently-in-jest

I found the error. It was because of some missing libraries need. I discovered this when I downgraded playwright to version 1.9 and ran the the code then this was the error msg:

(node:12876) UnhandledPromiseRejectionWarning: browserType.launch: Host system is missing dependencies!

Some of the Universal C Runtime files cannot be found on the system. You can fix
that by installing Microsoft Visual C++ Redistributable for Visual Studio from:
https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

Full list of missing libraries:
    vcruntime140.dll
    msvcp140.dll
Error
    at Object.captureStackTrace (D:\Projects\snkrs-play\node_modules\playwright\lib\utils\stackTrace.js:48:19)
    at Connection.sendMessageToServer (D:\Projects\snkrs-play\node_modules\playwright\lib\client\connection.js:69:48)
    at Proxy.<anonymous> (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:64:61)
    at D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:64:67
    at BrowserType._wrapApiCall (D:\Projects\snkrs-play\node_modules\playwright\lib\client\channelOwner.js:77:34)
    at BrowserType.launch (D:\Projects\snkrs-play\node_modules\playwright\lib\client\browserType.js:55:21)
    at D:\Projects\snkrs-play\index.js:4:35
    at Object.<anonymous> (D:\Projects\snkrs-play\index.js:7:3)
    at Module._compile (internal/modules/cjs/loader.js:1063:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1092:10)
(Use `node --trace-warnings ...` to show where the warning was created)
(node:12876) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:12876) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

A list of missing libraries was provided. After successful installments, firefox ran fine. I upgraded again to version 1.10 and firefox still works.

https://stackoverflow.com/questions/66984974/firefox-browser-does-not-start-in-playwright

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Playwright tutorial

LambdaTest’s Playwright tutorial will give you a broader idea about the Playwright automation framework, its unique features, and use cases with examples to exceed your understanding of Playwright testing. This tutorial will give A to Z guidance, from installing the Playwright framework to some best practices and advanced concepts.

Chapters:

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