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How to use toBeOK method in Playwright Internal

Best JavaScript code snippet using playwright-internal

notebooks_controller_spec.js

1const request = require('request');2const models = require('../src/models');3const app = require('../src/app');4const path = require('path');5const mockDatabase = require('./helpers/mockDatabase');6const port = 3001;7const baseUrl = `http://localhost:${port}`;8describe('Notebook endpoints', () => {9  let server;10  beforeAll(() => {11    // Start the server12    server = app.listen(port);13  });14  afterAll(() => {15    // Stop the server16    server.close();17  });18  mockDatabase.useWithJasmine(models.database, [19    path.resolve(path.join(__dirname, 'fixtures/notebooks.json')),20    path.resolve(path.join(__dirname, 'fixtures/notes.json'))21  ]);22  describe('GET /notebooks', () => {23    it('returns a list of notebooks', done => {24      // Send a request25      request.get(`${baseUrl}/notebooks`, (err, response, body) => {26        expect(err).toBeFalsy();27        expect(response).toBeOk();28        expect(response).toContainJson();29        const actual = JSON.parse(body);30        const expected = [31          { id: 1, title: 'Research' },32          { id: 2, title: 'Chores' }33        ];34        expect(actual.length).toEqual(expected.length);35        for(let i = 0; i < expected.length; ++i) {36          expect(actual).toContain(jasmine.objectContaining(expected[i]));37        }38        done();39      });40    });41  });42  describe('GET /notebooks/:notebookId/notes', () => {43    it('returns all notes from the specified notebook', done => {44      // Send a request45      request.get(`${baseUrl}/notebooks/1/notes`, (err, response, body) => {46        expect(err).toBeFalsy();47        expect(response).toBeOk();48        expect(response).toContainJson();49        const actual = JSON.parse(body);50        const expected = [51          { id: 1, title: 'Perpetual motion machine', content: 'Not working.' },52          { id: 2, title: 'Vaccines', content: 'Do not cause autism.' }53        ];54        expect(actual.length).toEqual(expected.length);55        for(let i = 0; i < expected.length; ++i) {56          expect(actual).toContain(jasmine.objectContaining(expected[i]));57        }58        done();59      });60    });61  });62  describe('POST /notebooks', () => {63    const newNotebookAttrs = { title: 'Ideas' };64    it('creates a new notebook', done => {65      // Send a request66      request.post(`${baseUrl}/notebooks`, {67        headers: {68          ['content-type']: 'application/json',69        },70        body: JSON.stringify(newNotebookAttrs)71      }, (err, response) => {72        expect(err).toBeFalsy();73        expect(response).toBeOk();74        mockDatabase.db.query('SELECT * FROM Notebooks WHERE id = 3').then(queryResponse => {75          expect(queryResponse[0].length).toEqual(1);76          const actual = queryResponse[0][0];77          const expected = newNotebookAttrs;78          expect(actual).toEqual(jasmine.objectContaining(expected));79        });80        done();81      });82    });83    it('returns the new notebook', done => {84      // Send a request85      request.post(`${baseUrl}/notebooks`, {86        headers: {87          ['content-type']: 'application/json',88        },89        body: JSON.stringify(newNotebookAttrs)90      }, (err, response, body) => {91        expect(err).toBeFalsy();92        expect(response).toBeOk();93        expect(response).toContainJson();94        const actual = JSON.parse(body);95        const expected = newNotebookAttrs;96        expect(actual).toEqual(jasmine.objectContaining(expected));97        done();98      });99    });100  });101  describe('GET /notebooks/:notebookId', () => {102    it('returns the notebook with specified ID', done => {103      // Send a request104      request.get(`${baseUrl}/notebooks/1`, (err, response, body) => {105        expect(err).toBeFalsy();106        expect(response).toBeOk();107        expect(response).toContainJson();108        const actual = JSON.parse(body);109        const expected = { id: 1, title: 'Research' };110        expect(actual).toEqual(jasmine.objectContaining(expected));111        done();112      });113    });114  });115  describe('DELETE /notebooks/:notebookId', () => {116    it('deletes the notebook', done => {117      // Send a request118      request.delete(`${baseUrl}/notebooks/1`, (err, response) => {119        expect(err).toBeFalsy();120        expect(response).toBeOk();121        mockDatabase.db.query('SELECT * FROM Notebooks WHERE id = 1').then(queryResponse => {122          expect(queryResponse[0]).toEqual([]);123        });124        mockDatabase.db.query('SELECT * FROM Notes WHERE notebookId = 1').then(queryResponse => {125          expect(queryResponse[0]).toEqual([]);126        });127        done();128      });129    });130    it('returns an empty object', done => {131      // Send a request132      request.delete(`${baseUrl}/notebooks/1`, (err, response, body) => {133        expect(err).toBeFalsy();134        expect(response).toBeOk();135        expect(response).toContainJson();136        expect(JSON.parse(body)).toEqual({});137        done();138      });139    });140  });141  describe('PUT /notebooks/:notebookId', () => {142    const updatedNotebookAttrs = { title: 'Study' };143    it('updates the notebook', done => {144      // Send a request145      request.put(`${baseUrl}/notebooks/1`, {146        headers: {147          ['content-type']: 'application/json',148        },149        body: JSON.stringify(updatedNotebookAttrs)150      }, (err, response) => {151        expect(err).toBeFalsy();152        expect(response).toBeOk();153        mockDatabase.db.query('SELECT * FROM Notebooks WHERE id = 1').then(queryResponse => {154          const actual = queryResponse[0][0];155          const expected = updatedNotebookAttrs;156          expect(actual).toEqual(jasmine.objectContaining(expected));157        });158        done();159      });160    });161    it('returns the updated notebook', done => {162      // Send a request163      request.put(`${baseUrl}/notebooks/1`, {164        headers: {165          ['content-type']: 'application/json',166        },167        body: JSON.stringify(updatedNotebookAttrs)168      }, (err, response, body) => {169        expect(err).toBeFalsy();170        expect(response).toBeOk();171        expect(response).toContainJson();172        const actual = JSON.parse(body);173        const expected = updatedNotebookAttrs;174        expect(actual).toEqual(jasmine.objectContaining(expected));175        done();176      });177    });178  });...

notes_controller_spec.js

Source: notes_controller_spec.js

1const request = require('request');2const models = require('../src/models');3const app = require('../src/app');4const path = require('path');5const mockDatabase = require('./helpers/mockDatabase');6const port = 3001;7const baseUrl = `http://localhost:${port}`;8describe('Note endpoints', () => {9  let server;10  beforeAll(() => {11    // Start the server12    server = app.listen(port);13  });14  afterAll(() => {15    // Stop the server16    server.close();17  });18  mockDatabase.useWithJasmine(models.database, [19    path.resolve(path.join(__dirname, 'fixtures/notebooks.json')),20    path.resolve(path.join(__dirname, 'fixtures/notes.json'))21  ]);22  describe('GET /notes', () => {23    it('returns a list of notes', done => {24      // Send a request25      request.get(`${baseUrl}/notes`, (err, response, body) => {26        expect(err).toBeFalsy();27        expect(response).toBeOk();28        expect(response).toContainJson();29        const actual = JSON.parse(body);30        const expected = [31          { id: 1, title: 'Perpetual motion machine', content: 'Not working.' },32          { id: 2, title: 'Vaccines', content: 'Do not cause autism.' },33          { id: 3, title: 'Clean the house', content: 'Use strong cleaning products.' }34        ];35        expect(actual.length).toEqual(expected.length);36        for(let i = 0; i < expected.length; ++i) {37          expect(actual).toContain(jasmine.objectContaining(expected[i]));38        }39        done();40      });41    });42  });43  describe('POST /notes', () => {44    const newNoteAttrs = {45      title: 'Mow the lawn',46      content: 'Front and back.',47      notebookId: 248    };49    it('creates a new note', done => {50      // Send a request51      request.post(`${baseUrl}/notes`, {52        headers: {53          ['content-type']: 'application/json',54        },55        body: JSON.stringify(newNoteAttrs)56      }, (err, response) => {57        expect(err).toBeFalsy();58        expect(response).toBeOk();59        mockDatabase.db.query('SELECT * FROM Notes WHERE id = 4').then(queryResponse => {60          expect(queryResponse[0].length).toEqual(1);61          const actual = queryResponse[0][0];62          const expected = newNoteAttrs;63          expect(actual).toEqual(jasmine.objectContaining(expected));64        });65        done();66      });67    });68    it('returns the new note', done => {69      // Send a request70      request.post(`${baseUrl}/notes`, {71        headers: {72          ['content-type']: 'application/json',73        },74        body: JSON.stringify(newNoteAttrs)75      }, (err, response, body) => {76        expect(err).toBeFalsy();77        expect(response).toBeOk();78        expect(response).toContainJson();79        const actual = JSON.parse(body);80        const expected = newNoteAttrs;81        expect(actual).toEqual(jasmine.objectContaining(expected));82        done();83      });84    });85  });86  describe('GET /notes/:noteId', () => {87    it('returns the note with specified ID', done => {88      // Send a request89      request.get(`${baseUrl}/notes/1`, (err, response, body) => {90        expect(err).toBeFalsy();91        expect(response).toBeOk();92        expect(response).toContainJson();93        const actual = JSON.parse(body);94        const expected = { id: 1, title: 'Perpetual motion machine', content: 'Not working.' };95        expect(actual).toEqual(jasmine.objectContaining(expected));96        done();97      });98    });99  });100  describe('DELETE /notes/:noteId', () => {101    it('deletes the note', done => {102      // Send a request103      request.delete(`${baseUrl}/notes/1`, (err, response) => {104        expect(err).toBeFalsy();105        expect(response).toBeOk();106        mockDatabase.db.query('SELECT * FROM Notes WHERE id = 1').then(queryResponse => {107          expect(queryResponse[0]).toEqual([]);108        });109        done();110      });111    });112    it('returns an empty object', done => {113      // Send a request114      request.delete(`${baseUrl}/notes/1`, (err, response, body) => {115        expect(err).toBeFalsy();116        expect(response).toBeOk();117        expect(response).toContainJson();118        expect(JSON.parse(body)).toEqual({});119        done();120      });121    });122  });123  describe('PUT /notes/:noteId', () => {124    const updatedNoteAttrs = {125      title: 'Impossible machine',126      content: 'Still impossible.',127      notebookId: 2128    };129    it('updates the note', done => {130      // Send a request131      request.put(`${baseUrl}/notes/1`, {132        headers: {133          ['content-type']: 'application/json',134        },135        body: JSON.stringify(updatedNoteAttrs)136      }, (err, response) => {137        expect(err).toBeFalsy();138        expect(response).toBeOk();139        mockDatabase.db.query('SELECT * FROM Notes WHERE id = 1').then(queryResponse => {140          const actual = queryResponse[0][0];141          const expected = updatedNoteAttrs;142          expect(actual).toEqual(jasmine.objectContaining(expected));143        });144        done();145      });146    });147    it('returns the updated note', done => {148      // Send a request149      request.put(`${baseUrl}/notes/1`, {150        headers: {151          ['content-type']: 'application/json',152        },153        body: JSON.stringify(updatedNoteAttrs)154      }, (err, response, body) => {155        expect(err).toBeFalsy();156        expect(response).toBeOk();157        expect(response).toContainJson();158        const actual = JSON.parse(body);159        const expected = updatedNoteAttrs;160        expect(actual).toEqual(jasmine.objectContaining(expected));161        done();162      });163    });164  });...

signup.spec.js

Source: signup.spec.js

...10    }11    const response = await request.post(`${BASE_URL_API}/dev/v1/users`, {12      data: payload13    })14    expect(response).toBeOK()15    const responseBody = await response.json()16    expect(responseBody.user.fullName).toEqual(payload.fullName)17    expect(responseBody.user.email).toEqual(payload.email)18    expect(responseBody.user.loginType).toEqual([payload.loginType])19  })20  test('should not be able to signup by api with invalid email', async ({ request }) => {21    const payload = {22      fullName: data.auth.register_error.invalid_email.name,23      password: data.auth.register_error.invalid_email.password,24      email: data.auth.register_error.invalid_email.email,25      loginType: data.auth.register_error.invalid_email.loginType26    }27    const response = await request.post(`${BASE_URL_API}/dev/v1/users`, {28      data: payload29    })30    expect(response).not.toBeOK()31    const responseBody = await response.json()32    expect(responseBody.error.status).toEqual(400)33    expect(responseBody.error.code).toEqual('INVALID_EMAIL')34    expect(responseBody.error.message).toEqual('O e-mail Ã© invÃ¡lido')35    expect(responseBody.error.type).toEqual('ApiError')36  })37  test('should not be able to signup by api with empty name', async ({ request }) => {38    const payload = {39      password: data.auth.register.password,40      email: data.auth.register.email,41      loginType: data.auth.register.loginType42    }43    const response = await request.post(`${BASE_URL_API}/dev/v1/users`, {44      data: payload45    })46    expect(response).not.toBeOK()47    const responseBody = await response.json()48    expect(responseBody.error.status).toEqual(400)49    expect(responseBody.error.code).toEqual('FULLNAME_REQUIRED')50    expect(responseBody.error.message).toEqual('"fullName" Ã© obrigatÃ³rio')51    expect(responseBody.error.type).toEqual('ApiError')52  })53  test('should not be able to signup by api with empty password', async ({ request }) => {54    const payload = {55      fullName: data.auth.register.name,56      email: data.auth.register.email,57      loginType: data.auth.register.loginType58    }59    const response = await request.post(`${BASE_URL_API}/dev/v1/users`, {60      data: payload61    })62    expect(response).not.toBeOK()63    const responseBody = await response.json()64    expect(responseBody.error.status).toEqual(400)65    expect(responseBody.error.code).toEqual('PASSWORD_REQUIRED')66    expect(responseBody.error.message).toEqual('"password" Ã© obrigatÃ³rio')67    expect(responseBody.error.type).toEqual('ApiError')68  })69  test('should not be able to signup by api with empty loginType', async ({ request }) => {70    const payload = {71      fullName: data.auth.register.name,72      password: data.auth.register.password,73      email: data.auth.register.email74    }75    const response = await request.post(`${BASE_URL_API}/dev/v1/users`, {76      data: payload77    })78    expect(response).not.toBeOK()79    const responseBody = await response.json()80    expect(responseBody.error.status).toEqual(400)81    expect(responseBody.error.code).toEqual('LOGINTYPE_REQUIRED')82    expect(responseBody.error.message).toEqual('"loginType" Ã© obrigatÃ³rio')83    expect(responseBody.error.type).toEqual('ApiError')84  })...

httpResponseMatchers.js

Source: httpResponseMatchers.js

1const toBeOk = () => ({2  compare: (actual) => {3    const result = {};4    result.pass = /^2\d\d$/.test(`${actual.statusCode}`);5    if(result.pass) {6      // Failure message for when the matcher is negated7      result.message = `Expected HTTP status code not to be 2xx OK, got ${actual.statusCode}`;8    } else {9      // Normal failure message10      result.message = `Expected HTTP status code to be 2xx OK, got ${actual.statusCode}`;11    }12    return result;13  }14});15const toContainJson = () => ({16  compare: (actual) => {17    const result = {};18    result.pass = actual.headers['content-type'].match('application/json');19    if(result.pass) {20      // Failure message for when the matcher is negated21      result.message = 'Expected content type not to be JSON';22    } else {23      // Normal failure message24      result.message = 'Expected content type to be JSON';25    }26    return result;27  }28});29// Register matchers so that they can be used in our tests30beforeEach(() => {31  jasmine.addMatchers({ toBeOk, toContainJson });...

Using AI Code Generation

1const { toBeOK } = require('expect-playwright');2expect.extend({ toBeOK });3const { toBeOK } = require('expect-playwright');4expect.extend({ toBeOK });5const { toBeOK } = require('expect-playwright');6expect.extend({ toBeOK });7const { toBeOK } = require('expect-playwright');8expect.extend({ toBeOK });9const { toBeOK } = require('expect-playwright');10expect.extend({ toBeOK });11const { toBeOK } = require('expect-playwright');12expect.extend({ toBeOK });13const { toBeOK } = require('expect-playwright');14expect.extend({ toBeOK });15const { toBeOK } = require('expect-playwright');16expect.extend({ toBeOK });17const { toBeOK } = require('expect-playwright');18expect.extend({ toBeOK });19const { toBeOK } = require('expect-playwright');20expect.extend({ toBeOK });21const { toBeOK } = require('expect-playwright');22expect.extend({ toBeOK });23const { toBeOK } = require('expect-playwright');24expect.extend({ toBeOK });25const { toBeOK } = require('expect-playwright');26expect.extend({ toBeOK });27const { toBeOK } = require('expect-playwright');28expect.extend({ toBeOK

Using AI Code Generation

1const { toBeOK } = require('expect-playwright')2expect.extend({ toBeOK })3expect.extend({ toBeOK })4expect(await page.$('selector')).toBeOK()5expect(await page.$('selector')).toBeOK()6import { toBeOK } from 'expect-playwright'7expect.extend({ toBeOK })8expect.extend({ toBeOK })9expect(await page.$('selector')).toBeOK()10expect(await page.$('selector')).toBeOK()11import { toBeOK } from 'expect-playwright'12expect.extend({ toBeOK })13expect.extend({ toBeOK })14expect(await page.$('selector')).toBeOK()15expect(await page.$('selector')).toBeOK()16import { toBeOK } from 'expect-playwright'17expect.extend({ toBeOK })18expect.extend({ toBeOK })19expect(await page.$('selector')).toBeOK()20expect(await page.$('selector')).toBeOK()21import { toBeOK } from 'expect-playwright'22expect.extend({ toBeOK })23expect.extend({ toBeOK })24expect(await page.$('selector')).toBeOK()25expect(await

Using AI Code Generation

1expect(page).toBeOK()2expect(page).toBeOK()3expect(page).toBeOK()4expect(page).toBeOK()5expect(page).toBeOK()6expect(page).toBeOK()7expect(page).toBeOK()8expect(page).toBeOK()9expect(page).toBeOK()10expect(page).toBeOK()11expect(page).toBeOK()12expect(page).toBeOK()13expect(page).toBeOK()14expect(page).toBeOK()15expect(page).toBeOK()16expect(page).toBeOK()17expect(page).toBeOK()18expect(page).toBeOK()19expect(page).toBeOK()20expect(page).toBeOK()

Using AI Code Generation

1const { toBeOK } = require('jest-playwright-preset/lib/matchers');2expect.extend({ toBeOK });3test('page', async () => {4    await page.waitForTimeout(5000);5    await expect(page).toBeOK();6});7TypeError: expect(...).toBeOK is not a function

Using AI Code Generation

1const { toBeOK } = require('expect-playwright');2expect.extend({ toBeOK });3test('should be ok', async () => {4  expect(response).toBeOK();5});6test('should be ok', async () => {7  await expect(response).toBeOK();8});9test('should be ok', async () => {10  expect(response).toBeOK();11});12test('should be ok', async () => {13  await expect(response).toBeOK();14});15test('should be ok', async () => {16  expect(response).toBeOK();17});18test('should be ok', async () => {19  await expect(response).toBeOK();20});21test('should be ok', async () => {22  expect(response).toBeOK();23});24test('should be ok', async () => {25  await expect(response).toBeOK();26});27test('should be ok', async () => {28  expect(response).toBeOK();29});30test('should be ok', async () => {31  await expect(response).toBeOK();32});

Using AI Code Generation

1const { toBeOK } = require('@playwright/test');2expect.extend({ toBeOK });3test('should load about page', async ({ page }) => {4    await page.click('text=About');5    expect(response.status()).toBeOK();6});7TypeError: expect(...).toBeOK is not a function8const { toBeOK } = require('@playwright/test');9expect.extend({ toBeOK });10test('should load about page', async ({ page }) => {11    await page.click('text=About');12    expect(response.status()).toBeOK();13});14TypeError: expect(...).toBeOK is not a function15const { toBeOK } = require('@playwright/test');16expect.extend({ toBeOK });17test('should load about page', async ({ page }) => {18    await page.click('text=About');19    expect(response.status()).toBeOK();20});21TypeError: expect(...).toBeOK is not a function

Using AI Code Generation

1const test = require('playwright-test').test;2test('my test', async ({ page }) => {3  expect(await page.title()).toBeOk();4});5const { test, expect } = require('@playwright/test');6test('my test', async ({ page }) => {7  expect(await page.title()).toBeOk();8});9const { test, expect } = require('@playwright/test');10test('my test', async ({ page }) => {11  expect(await page.title()).toBeOk();12});13const { test, expect } = require('@playwright/test');14test('my test', async ({ page }) => {15  expect(await page.title()).toBeOk();16});17const { test, expect } = require('@playwright/test');18test('my test', async ({ page }) => {19  expect(await page.title()).toBeOk();20});21const { test, expect } = require('@playwright/test');22test('my test', async ({ page }) => {23  expect(await page.title()).toBeOk();24});25const { test, expect } = require('@playwright/test');26test('my test', async ({ page }) => {27  expect(await page.title()).toBeOk();28});29const { test, expect } = require('@playwright/test');30test('my test', async ({ page }) => {31  expect(await

StackOverFlow community discussions

Questions

Discussion

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

firefox browser does not start in playwright

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

Running Playwright in Azure Function

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

firefox browser does not start 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

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

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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