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How to use ws.on.withArgs method in Cypress

Best JavaScript code snippet using cypress

background_spec.js

Source:background_spec.js

...114    this.connect = async (options = {}) => {115      const ws = background.connect(`http://localhost:${PORT}`, '/__socket.io')116      // skip 'connect' and 'automation:client:connected' and trigger117      // the handler that kicks everything off118      await ws.on.withArgs('automation:config').args[0][1](options)119      return ws120    }121    this.httpSrv.listen(PORT, done)122  })123  afterEach(function (done) {124    this.server.close()125    this.httpSrv.close(() => {126      done()127    })128  })129  context('.connect', () => {130    it('emits \'automation:client:connected\'', async function () {131      const ws = background.connect(`http://localhost:${PORT}`, '/__socket.io')132      await ws.on.withArgs('connect').args[0][1]()133      expect(ws.emit).to.be.calledWith('automation:client:connected')134    })135    it('listens to cookie changes', async function () {136      const addListener = sinon.stub(browser.cookies.onChanged, 'addListener')137      await this.connect()138      expect(addListener).to.be.calledOnce139    })140  })141  context('cookies', () => {142    it('onChanged does not emit when cause is overwrite', async function () {143      const addListener = sinon.stub(browser.cookies.onChanged, 'addListener')144      const ws = await this.connect()145      const fn = addListener.getCall(0).args[0]146      fn({ cause: 'overwrite' })...

web-socket-server-factory-test.js

Source:web-socket-server-factory-test.js

...274          super(...args);275          this.onMessage = stub();276        }277      };278      const onMessage = v.ws.on.withArgs('message');279      const sess = sut(v.mockSess);280      v.ws[isTest].request.url = `/ws/${koru.PROTOCOL_VERSION}/v1.2.2/h123`;281      sess.versionHash = 'h456';282      sess.version = 'v1.2.3';283      TH.noInfo();284      sess.onConnection(v.ws, v.ws[isTest].request);285      assert.calledOnceWith(onMessage, 'message', m.func);286      const conn = sess.conns[1];287      onMessage.yield('testing');288      assert.calledWith(conn.onMessage, 'testing');289    });290    test('unload server', () => {291      const sess = sut(v.mockSess);292      stub(sess, 'sendAll');...

Using AI Code Generation

1Cypress.on('window:before:load', (win) => {2  cy.stub(win.console, 'log').as('consoleLog')3  cy.stub(win.console, 'error').as('consoleError')4  cy.stub(win.console, 'warn').as('consoleWarn')5})6Cypress.on('window:before:load', (win) => {7  cy.stub(win.console, 'log').as('consoleLog')8  cy.stub(win.console, 'error').as('consoleError')9  cy.stub(win.console, 'warn').as('consoleWarn')10})11Cypress.on('window:before:load', (win) => {12  cy.stub(win.console, 'log').as('consoleLog')13  cy.stub(win.console, 'error').as('con

Using AI Code Generation

1describe('test', () => {2  it('test', () => {3    cy.get('#input').type('test')4    cy.get('#submit').click()5    cy.get('#output').should('have.text', 'test')6    cy.window().then((win) => {7      cy.stub(win.WebSocket.prototype, 'send').as('send')8      cy.get('#input').type('test')9      cy.get('#submit').click()10      cy.get('@send').should('have.been.calledWith', 'test')11    })12  })13})14import React, { useEffect, useState } from 'react'15import './App.css'16function App() {17  const [input, setInput] = useState('')18  const [output, setOutput] = useState('')19  const [ws, setWs] = useState(null)20  useEffect(() => {21    setWs(ws)22    ws.onmessage = (e) => {23      setOutput(e.data)24    }25  }, [])26  const handleSubmit = (e) => {27    e.preventDefault()28    if (ws) {29      ws.send(input)30    }31    setInput('')32  }33  return (34      <form onSubmit={handleSubmit}>35          value={input}36          onChange={(e) => setInput(e.target.value)}37      <div id="output">{output}</div>38}39const WebSocket = require('ws')40const wss = new WebSocket.Server({ port: 3001 })41wss.on('connection', (ws) => {42  ws.on('message', (message) => {43    ws.send(message)44  })45})

Using AI Code Generation

1Cypress.Commands.add('stubWebsocket', (url, event, message) => {2  cy.window().then((win) => {3    cy.stub(win.WebSocket.prototype, 'send')4    cy.stub(win.WebSocket.prototype, 'on').withArgs(event).as('onMessage')5    cy.visit(url)6    cy.get('@onMessage').should('be.called')7    cy.get('@onMessage').should('be.calledWith', message)8  })9})10- [cypress-example-kitchensink](

Using AI Code Generation

1Cypress.Commands.add('mockWebSocket', (url, data) => {2  cy.window().then((win) => {3    cy.stub(win.WebSocket.prototype, 'send').as('wsSend');4    cy.stub(win.WebSocket.prototype, 'on').as('wsOn');5    cy.stub(win.WebSocket.prototype, 'close').as('wsClose');6    cy.stub(win.WebSocket.prototype, 'addEventListener').as('wsAddEventListener');7    cy.stub(win.WebSocket.prototype, 'removeEventListener').as('wsRemoveEventListener');8    cy.stub(win.WebSocket.prototype, 'readyState').as('wsReadyState');9    cy.stub(win.WebSocket.prototype, 'OPEN').as('wsOPEN');10    cy.stub(win.WebSocket.prototype, 'CLOSED').as('wsCLOSED');11    cy.stub(win.WebSocket.prototype, 'CONNECTING').as('wsCONNECTING');12    cy.stub(win.WebSocket.prototype, 'CLOSING').as('wsCLOSING');13  });14  cy.visit(url);15  cy.get('@wsOn').withArgs('message').yields({ data: JSON.stringify(data) });16});

Using AI Code Generation

1import { mount } from '@cypress/react'2import React from 'react'3import { useWebSocket } from 'react-use-websocket'4import { WebSocket } from 'mock-socket'5describe('WebSocket', () => {6  it('closes the websocket when the component is unmounted', () => {7    const ws = new WebSocket(url)8    cy.stub(ws, 'on').withArgs('close').yields()9    const MyComponent = () => {10      const { sendMessage } = useWebSocket(url)11      return <button onClick={sendMessage}>Send Message</button>12    }13    mount(<MyComponent />)14    cy.get('button').click()15    cy.get('button').click()16    cy.get('button').click()17    cy.get(ws).its('on').should('be.calledWith', 'close')18  })19  it('does not close the websocket when the component is mounted', () => {20    const ws = new WebSocket(url)21    cy.stub(ws, 'on').withArgs('close').yields()22    const MyComponent = () => {23      const { sendMessage } = useWebSocket(url)24      return <button onClick={sendMessage}>Send Message</button>25    }26    mount(<MyComponent />)27    cy.get('button').click()28    cy.get('button').click()29    cy.get('button').click()30    cy.get(ws).its('on').should('not.be.calledWith', 'close')31  })32})

Cypress Tutorial

Cypress is a renowned Javascript-based open-source, easy-to-use end-to-end testing framework primarily used for testing web applications. Cypress is a relatively new player in the automation testing space and has been gaining much traction lately, as evidenced by the number of Forks (2.7K) and Stars (42.1K) for the project. LambdaTest’s Cypress Tutorial covers step-by-step guides that will help you learn from the basics till you run automation tests on LambdaTest.

Chapters:

What is Cypress? -
Why Cypress? - Learn why Cypress might be a good choice for testing your web applications.
Features of Cypress Testing - Learn about features that make Cypress a powerful and flexible tool for testing web applications.
Cypress Drawbacks - Although Cypress has many strengths, it has a few limitations that you should be aware of.
Cypress Architecture - Learn more about Cypress architecture and how it is designed to be run directly in the browser, i.e., it does not have any additional servers.
Browsers Supported by Cypress - Cypress is built on top of the Electron browser, supporting all modern web browsers. Learn browsers that support Cypress.
Selenium vs Cypress: A Detailed Comparison - Compare and explore some key differences in terms of their design and features.
Cypress Learning: Best Practices - Take a deep dive into some of the best practices you should use to avoid anti-patterns in your automation tests.
How To Run Cypress Tests on LambdaTest? - Set up a LambdaTest account, and now you are all set to learn how to run Cypress tests.

Certification

You can elevate your expertise with end-to-end testing using the Cypress automation framework and stay one step ahead in your career by earning a Cypress certification. Check out our Cypress 101 Certification.