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How to use currentlyLoadingFileSuite method in Playwright Internal

Best JavaScript code snippet using playwright-internal

testType.js

1"use strict";2Object.defineProperty(exports, "__esModule", {3  value: true4});5exports.rootTestType = exports.TestTypeImpl = exports.DeclaredFixtures = void 0;6var _expect = require("./expect");7var _globals = require("./globals");8var _test = require("./test");9var _transform = require("./transform");10var _util = require("./util");11/**12 * Copyright (c) Microsoft Corporation.13 *14 * Licensed under the Apache License, Version 2.0 (the "License");15 * you may not use this file except in compliance with the License.16 * You may obtain a copy of the License at17 *18 * http://www.apache.org/licenses/LICENSE-2.019 *20 * Unless required by applicable law or agreed to in writing, software21 * distributed under the License is distributed on an "AS IS" BASIS,22 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.23 * See the License for the specific language governing permissions and24 * limitations under the License.25 */26const countByFile = new Map();27class DeclaredFixtures {28  constructor() {29    this.testType = void 0;30    this.location = void 0;31  }32}33exports.DeclaredFixtures = DeclaredFixtures;34class TestTypeImpl {35  constructor(fixtures) {36    this.fixtures = void 0;37    this.test = void 0;38    this.fixtures = fixtures;39    const test = (0, _transform.wrapFunctionWithLocation)(this._createTest.bind(this, 'default'));40    test.expect = _expect.expect;41    test.only = (0, _transform.wrapFunctionWithLocation)(this._createTest.bind(this, 'only'));42    test.describe = (0, _transform.wrapFunctionWithLocation)(this._describe.bind(this, 'default'));43    test.describe.only = (0, _transform.wrapFunctionWithLocation)(this._describe.bind(this, 'only'));44    test.describe.serial = (0, _transform.wrapFunctionWithLocation)(this._describe.bind(this, 'serial'));45    test.describe.serial.only = (0, _transform.wrapFunctionWithLocation)(this._describe.bind(this, 'serial.only'));46    test.beforeEach = (0, _transform.wrapFunctionWithLocation)(this._hook.bind(this, 'beforeEach'));47    test.afterEach = (0, _transform.wrapFunctionWithLocation)(this._hook.bind(this, 'afterEach'));48    test.beforeAll = (0, _transform.wrapFunctionWithLocation)(this._hook.bind(this, 'beforeAll'));49    test.afterAll = (0, _transform.wrapFunctionWithLocation)(this._hook.bind(this, 'afterAll'));50    test.skip = (0, _transform.wrapFunctionWithLocation)(this._modifier.bind(this, 'skip'));51    test.fixme = (0, _transform.wrapFunctionWithLocation)(this._modifier.bind(this, 'fixme'));52    test.fail = (0, _transform.wrapFunctionWithLocation)(this._modifier.bind(this, 'fail'));53    test.slow = (0, _transform.wrapFunctionWithLocation)(this._modifier.bind(this, 'slow'));54    test.setTimeout = (0, _transform.wrapFunctionWithLocation)(this._setTimeout.bind(this));55    test.step = (0, _transform.wrapFunctionWithLocation)(this._step.bind(this));56    test.use = (0, _transform.wrapFunctionWithLocation)(this._use.bind(this));57    test.extend = (0, _transform.wrapFunctionWithLocation)(this._extend.bind(this));58    test.declare = (0, _transform.wrapFunctionWithLocation)(this._declare.bind(this));59    this.test = test;60  }61  _createTest(type, location, title, fn) {62    throwIfRunningInsideJest();63    const suite = (0, _globals.currentlyLoadingFileSuite)();64    if (!suite) throw (0, _util.errorWithLocation)(location, `test() can only be called in a test file`);65    const ordinalInFile = countByFile.get(suite._requireFile) || 0;66    countByFile.set(suite._requireFile, ordinalInFile + 1);67    const test = new _test.TestCase('test', title, fn, ordinalInFile, this, location);68    test._requireFile = suite._requireFile;69    suite._addTest(test);70    if (type === 'only') test._only = true;71    if (type === 'skip') test.expectedStatus = 'skipped';72  }73  _describe(type, location, title, fn) {74    throwIfRunningInsideJest();75    const suite = (0, _globals.currentlyLoadingFileSuite)();76    if (!suite) throw (0, _util.errorWithLocation)(location, `describe() can only be called in a test file`);77    if (typeof title === 'function') {78      throw (0, _util.errorWithLocation)(location, ['It looks like you are calling describe() without the title. Pass the title as a first argument:', `test.describe('my test group', () => {`, `  // Declare tests here`, `});`].join('\n'));79    }80    const child = new _test.Suite(title);81    child._requireFile = suite._requireFile;82    child._isDescribe = true;83    child.location = location;84    suite._addSuite(child);85    if (type === 'only' || type === 'serial.only') child._only = true;86    if (type === 'serial' || type === 'serial.only') child._serial = true;87    (0, _globals.setCurrentlyLoadingFileSuite)(child);88    fn();89    (0, _globals.setCurrentlyLoadingFileSuite)(suite);90  }91  _hook(name, location, fn) {92    const suite = (0, _globals.currentlyLoadingFileSuite)();93    if (!suite) throw (0, _util.errorWithLocation)(location, `${name} hook can only be called in a test file`);94    if (name === 'beforeAll' || name === 'afterAll') {95      const hook = new _test.TestCase(name, name, fn, 0, this, location);96      hook._requireFile = suite._requireFile;97      suite._addAllHook(hook);98    } else {99      suite._eachHooks.push({100        type: name,101        fn,102        location103      });104    }105  }106  _modifier(type, location, ...modifierArgs) {107    const suite = (0, _globals.currentlyLoadingFileSuite)();108    if (suite) {109      if (typeof modifierArgs[0] === 'string' && typeof modifierArgs[1] === 'function') {110        // Support for test.skip('title', () => {})111        this._createTest('skip', location, modifierArgs[0], modifierArgs[1]);112        return;113      }114      if (typeof modifierArgs[0] === 'function') {115        suite._modifiers.push({116          type,117          fn: modifierArgs[0],118          location,119          description: modifierArgs[1]120        });121      } else {122        if (modifierArgs.length >= 1 && !modifierArgs[0]) return;123        const description = modifierArgs[1];124        suite._annotations.push({125          type,126          description127        });128      }129      return;130    }131    const testInfo = (0, _globals.currentTestInfo)();132    if (!testInfo) throw (0, _util.errorWithLocation)(location, `test.${type}() can only be called inside test, describe block or fixture`);133    if (typeof modifierArgs[0] === 'function') throw (0, _util.errorWithLocation)(location, `test.${type}() with a function can only be called inside describe block`);134    testInfo[type](...modifierArgs);135  }136  _setTimeout(location, timeout) {137    const suite = (0, _globals.currentlyLoadingFileSuite)();138    if (suite) {139      suite._timeout = timeout;140      return;141    }142    const testInfo = (0, _globals.currentTestInfo)();143    if (!testInfo) throw (0, _util.errorWithLocation)(location, `test.setTimeout() can only be called from a test`);144    testInfo.setTimeout(timeout);145  }146  _use(location, fixtures) {147    const suite = (0, _globals.currentlyLoadingFileSuite)();148    if (!suite) throw (0, _util.errorWithLocation)(location, `test.use() can only be called in a test file`);149    suite._use.push({150      fixtures,151      location152    });153  }154  async _step(location, title, body) {155    const testInfo = (0, _globals.currentTestInfo)();156    if (!testInfo) throw (0, _util.errorWithLocation)(location, `test.step() can only be called from a test`);157    const complete = testInfo._addStep('test.step', title);158    try {159      await body();160      complete();161    } catch (e) {162      complete((0, _util.serializeError)(e));163      throw e;164    }165  }166  _extend(location, fixtures) {167    const fixturesWithLocation = {168      fixtures,169      location170    };171    return new TestTypeImpl([...this.fixtures, fixturesWithLocation]).test;172  }173  _declare(location) {174    const declared = new DeclaredFixtures();175    declared.location = location;176    const child = new TestTypeImpl([...this.fixtures, declared]);177    declared.testType = child;178    return child.test;179  }180}181exports.TestTypeImpl = TestTypeImpl;182function throwIfRunningInsideJest() {183  if (process.env.JEST_WORKER_ID) {184    throw new Error(`Playwright Test needs to be invoked via 'npx playwright test' and excluded from Jest test runs.\n` + `Creating one directory for Playwright tests and one for Jest is the recommended way of doing it.\n` + `See https://playwright.dev/docs/intro/ for more information about Playwright Test.`);185  }186}187const rootTestType = new TestTypeImpl([]);...

globals.js

Source: globals.js

...31let currentFileSuite;32function setCurrentlyLoadingFileSuite(suite) {33  currentFileSuite = suite;34}35function currentlyLoadingFileSuite() {36  return currentFileSuite;...

Using AI Code Generation

1const { test, expect } = require('@playwright/test');2test.describe('suite', () => {3  test.beforeEach(async ({ page }) => {4  });5  test('test 1', async ({ page }) => {6    await page.click('text=Docs');7    await page.click('text=API');8    await page.click('text=Test Fixtures');

Using AI Code Generation

1const { test } = require('@playwright/test');2const { currentlyLoadingFileSuite } = require('@playwright/test/lib/test');3test.describe('Test Suite', () => {4  test.beforeEach(async ({ page }) => {5    const suite = currentlyLoadingFileSuite();6    console.log(`Test Suite Name: ${suite.title}`);7  });8  test('Test 1', async ({ page }) => {9    console.log('Test 1');10  });11  test('Test 2', async ({ page }) => {12    console.log('Test 2');13  });14});

Using AI Code Generation

1const {test} = require('@playwright/test');2test.describe('My test suite', () => {3  test('My test', async ({ page }) => {4  });5});6[Apache 2.0](LICENSE)

Using AI Code Generation

1const { currentTestInfo } = require('@playwright/test');2const test = require('@playwright/test').test;3test('test', async ({ page }) => {4  const currentTestFile = currentTestInfo().testFile;5  console.log(currentTestFile);6});7npx playwright test test.js --testName="test" --browser=chromium --headed --viewportSize=1280,720 --userAgent="Mozilla/5.0 (Linux; Android 11; SM-A515F) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.105 Mobile Safari/537.36"8npx playwright test test.js --testName="test" --browser=chromium --headed --viewportSize=1280,720 --userAgent="Mozilla/5.0 (Linux; Android 11; SM-A515F) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.105 Mobile Safari/537.36" --device="Pixel 5"

Using AI Code Generation

1const { test: base } = require('@playwright/test');2const { currentlyLoadingFileSuite } = require('@playwright/test/lib/loader');3const path = require('path');4const { getTestTitle } = require('@playwright/test/lib/test');5const { getTestType } = require('@playwright/test/lib/testType');6const { isWorker } = require('@playwright/test/lib/workerRunner');7const { getWorkerIndex } = require('@playwright/test/lib/worker');8const { getProjectOutputDir } = require('@playwright/test/lib/utils');9const { getFullTestTitle } = require('@playwright/test/lib/testTitle');10const test = base.extend({11    async testInfo({}, use) {12        const testInfo = await use();13        testInfo.file = currentlyLoadingFileSuite();14        return testInfo;15    },16});17test.describe('test', () => {18    test('test', async ({ testInfo }) => {19        const { file } = testInfo;20        console.log(`file: ${file}`);21    });22});23const { test } = require('./test');24const path = require('path');25test.describe('test', () => {26    test('test', async ({ testInfo }) => {27        const { file } = testInfo;28        console.log(`file: ${file}`);29    });30});31const { test: base } = require('@playwright/test');32const { currentlyLoadingFileSuite } = require('@playwright/test/lib/loader');33const path = require('path

StackOverFlow community discussions

Questions

Discussion

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

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

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

firefox browser does not start in playwright

Running Playwright in Azure Function

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

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

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

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

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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