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How to use Tween method in Cypress

Best JavaScript code snippet using cypress

tween.js

...104	assert.expect( 13 );105	var testObject = { test: 100 },106		testOptions = { duration: 100 },107		tween, easingSpy;108	tween = jQuery.Tween( testObject, testOptions, "test", 0, "linear" );109	assert.equal( tween.elem, testObject, "Sets .element" );110	assert.equal( tween.options, testOptions, "sets .options" );111	assert.equal( tween.prop, "test", "sets .prop" );112	assert.equal( tween.end, 0, "sets .end" );113	assert.equal( tween.easing, "linear", "sets .easing when provided" );114	assert.equal( tween.start, 100, "Reads .start value during construction" );115	assert.equal( tween.now, 100, "Reads .now value during construction" );116	easingSpy = this.sandbox.spy( jQuery.easing, "linear" );117	assert.equal( tween.run( 0.1 ), tween, ".run() returns this" );118	assert.equal( tween.now, 90, "Calculated tween" );119	assert.ok( easingSpy.calledWith( 0.1, 0.1 * testOptions.duration, 0, 1, testOptions.duration ),120		"...using jQuery.easing.linear with back-compat arguments" );121	assert.equal( testObject.test, 90, "Set value" );122	tween.run( 1 );123	assert.equal( testObject.test, 0, "Checking another value" );124	tween.run( 0 );125	assert.equal( testObject.test, 100, "Can even go back in time" );126} );127QUnit.test( "jQuery.Tween - Element", function( assert ) {128	assert.expect( 15 );129	var testElement = jQuery( "<div>" ).css( "height", 100 )[ 0 ],130		testOptions = { duration: 100 },131		tween, easingSpy, eased;132	tween = jQuery.Tween( testElement, testOptions, "height", 0 );133	assert.equal( tween.elem, testElement, "Sets .element" );134	assert.equal( tween.options, testOptions, "sets .options" );135	assert.equal( tween.prop, "height", "sets .prop" );136	assert.equal( tween.end, 0, "sets .end" );137	assert.equal(138		tween.easing,139		jQuery.easing._default,140		"sets .easing to default when not provided"141	);142	assert.equal( tween.unit, "px", "sets .unit to px when not provided" );143	assert.equal( tween.start, 100, "Reads .start value during construction" );144	assert.equal( tween.now, 100, "Reads .now value during construction" );145	easingSpy = this.sandbox.spy( jQuery.easing, "swing" );146	assert.equal( tween.run( 0.1 ), tween, ".run() returns this" );147	assert.equal( tween.pos, jQuery.easing.swing( 0.1 ), "set .pos" );148	eased = 100 - ( jQuery.easing.swing( 0.1 ) * 100 );149	assert.equal( tween.now, eased, "Calculated tween" );150	assert.ok(151		easingSpy.calledWith( 0.1, 0.1 * testOptions.duration, 0, 1, testOptions.duration ),152		"...using jQuery.easing.linear with back-compat arguments"153	);154	assert.equal(155		parseFloat( testElement.style.height ).toFixed( 2 ),156		eased.toFixed( 2 ), "Set value"157	);158	tween.run( 1 );159	assert.equal( testElement.style.height, "0px", "Checking another value" );160	tween.run( 0 );161	assert.equal( testElement.style.height, "100px", "Can even go back in time" );162} );163QUnit.test( "jQuery.Tween - No duration", function( assert ) {164	assert.expect( 3 );165	var testObject = { test: 100 },166		testOptions = { duration: 0 },167		tween, easingSpy;168	tween = jQuery.Tween( testObject, testOptions, "test", 0 );169	easingSpy = this.sandbox.spy( jQuery.easing, "swing" );170	tween.run( 0.5 );171	assert.equal( tween.pos, 0.5, "set .pos correctly" );172	assert.equal( testObject.test, 50, "set value on object correctly" );173	assert.equal( easingSpy.callCount, 0, "didn't ease the value" );174} );175QUnit.test( "jQuery.Tween - step function option", function( assert ) {176	assert.expect( 4 );177	var testObject = { test: 100 },178		testOptions = { duration: 100, step: this.sandbox.spy() },179		tween, propHookSpy;180	propHookSpy = this.sandbox.spy( jQuery.Tween.propHooks._default, "set" );181	tween = jQuery.Tween( testObject, testOptions, "test", 0, "linear" );182	assert.equal( testOptions.step.callCount, 0, "didn't call step on create" );183	tween.run( 0.5 );184	assert.ok(185		testOptions.step.calledOn( testObject ),186		"Called step function in context of animated object"187	);188	assert.ok(189		testOptions.step.calledWith( 50, tween ),190		"Called step function with correct parameters"191	);192	assert.ok(193		testOptions.step.calledBefore( propHookSpy ),194		"Called step function before calling propHook.set"195	);196} );197QUnit.test( "jQuery.Tween - custom propHooks", function( assert ) {198	assert.expect( 3 );199	var testObject = {},200		testOptions = { duration: 100, step: this.sandbox.spy() },201		propHook = {202			get: sinon.stub().returns( 100 ),203			set: sinon.stub()204		},205		tween;206	jQuery.Tween.propHooks.testHooked = propHook;207	tween = jQuery.Tween( testObject, testOptions, "testHooked", 0, "linear" );208	assert.ok( propHook.get.calledWith( tween ), "called propHook.get on create" );209	assert.equal( tween.now, 100, "Used return value from propHook.get" );210	tween.run( 0.5 );211	assert.ok(212		propHook.set.calledWith( tween ),213		"Called propHook.set function with correct parameters"214	);215	delete jQuery.Tween.propHooks.testHooked;216} );217QUnit.test( "jQuery.Tween - custom propHooks - advanced values", function( assert ) {218	assert.expect( 5 );219	var testObject = {},220		testOptions = { duration: 100, step: this.sandbox.spy() },221		propHook = {222			get: sinon.stub().returns( [ 0, 0 ] ),223			set: sinon.spy()224		},225		tween;226	jQuery.Tween.propHooks.testHooked = propHook;227	tween = jQuery.Tween( testObject, testOptions, "testHooked", [ 1, 1 ], "linear" );228	assert.ok( propHook.get.calledWith( tween ), "called propHook.get on create" );229	assert.deepEqual( tween.start, [ 0, 0 ], "Used return value from get" );230	tween.run( 0.5 );231	// Some day this NaN assumption might change - perhaps add a "calc" helper to the hooks?232	assert.ok( isNaN( tween.now ), "Used return value from propHook.get" );233	assert.equal( tween.pos, 0.5, "But the eased percent is still available" );234	assert.ok(235		propHook.set.calledWith( tween ),236		"Called propHook.set function with correct parameters"237	);238	delete jQuery.Tween.propHooks.testHooked;239} );...

Using AI Code Generation

1describe('My First Test', () => {2  it('Visits the Kitchen Sink', () => {3    cy.contains('type').click()4    cy.url().should('include', '/commands/actions')5    cy.get('.action-email')6      .type('

Using AI Code Generation

1describe('My First Test', function() {2  it('Does not do much!', function() {3    expect(true).to.equal(true)4  })5  it('Does not do much!', function() {6    cy.get('.navbar-nav > :nth-child(1) > .nav-link').click()7    cy.get('.navbar-nav > :nth-child(2) > .nav-link').click()8    cy.get('.navbar-nav > :nth-child(3) > .nav-link').click()9    cy.get('.navbar-nav > :nth-child(4) > .nav-link').click()10    cy.get('.navbar-nav > :nth-child(5) > .nav-link').click()11    cy.get('.navbar-nav > :nth-child(6) > .nav-link').click()12    cy.get('.navbar-nav > :nth-child(7) > .nav-link').click()13    cy.get('.navbar-nav > :nth-child(8) > .nav-link').click()14    cy.get('.navbar-nav > :nth-child(9) > .nav-link').click()15    cy.get('.navbar-nav > :nth-child(10) > .nav-link').click()16    cy.get('.navbar-nav > :nth-child(11) > .nav-link').click()17    cy.get('.navbar-nav > :nth-child(12) > .nav-link').click()18    cy.get('.navbar-nav > :nth-child(13) > .nav-link').click()19    cy.get('.navbar-nav > :nth-child(14) > .nav-link').click()20    cy.get('.navbar-nav > :nth-child(15) > .nav-link').click()21    cy.get('.navbar-nav > :nth-child(16) > .nav-link').click()22    cy.get('.navbar-nav > :nth-child(17) > .nav-link').click()23    cy.get('.navbar-nav > :nth-child(18) > .nav-link').click()24    cy.get('.navbar-nav > :nth-child(19) > .nav-link').click()25    cy.get('.navbar-nav > :nth-child(20) > .nav-link').click()26    cy.get('.navbar-nav > :nth-child(21) > .nav-link').click()27    cy.get('.navbar-nav > :nth-child(22) > .nav-link').click()28    cy.get('.navbar-nav >

Using AI Code Generation

1describe('Test', () => {2    it('test', () => {3        cy.get('.query-btn').click()4        cy.get('.query-btn').should('have.class', 'btn-primary')5        cy.get('.query-btn').then(($btn) => {6            const x = $btn[0].getBoundingClientRect().x7            const y = $btn[0].getBoundingClientRect().y8            cy.wrap($btn).trigger('mousedown', { which: 1, pageX: x, pageY: y })9            cy.wrap($btn).trigger('mousemove', { which: 1, pageX: x + 100, pageY: y })10            cy.wrap($btn).trigger('mouseup', { force: true })11        })12    })13})14Cypress.Commands.add('tween', { prevSubject: 'element' }, (subject, x, y) => {15    const rect = subject[0].getBoundingClientRect()16    const tween = new win.Tween({17    })18    tween.to({ x: endX, y: endY }, 1000)19    tween.onUpdate((obj) => {20        subject[0].dispatchEvent(new win.MouseEvent('mousemove', {21        }))22    })23    tween.start()24})25describe('Test', () => {26    it('test', () => {27        cy.get('.query-btn').click()28        cy.get('.query-btn').should('have.class', 'btn-primary')29        cy.get('.query-btn').tween(100, 0)30    })31})32Cypress.Commands.add('tween', { prevSubject: 'element' }, (subject, x, y) => {

Using AI Code Generation

1import { TweenMax } from 'gsap';2Cypress.Commands.add('tween', { prevSubject: true }, (subject, options) => {3  return new Cypress.Promise((resolve, reject) => {4    TweenMax.to(subject, 0.2, {5      onComplete: () => {6        resolve(subject);7      }8    });9  });10});11describe('test', () => {12  it('test', () => {13    cy.get('.query-btn').tween({ x: 100, y: 100 });14  });15});16{17}18"devDependencies": {19}20import Vue from 'vue'21import Vuetify from 'vuetify/lib'22Vue.use(Vuetify)23import Vue from 'vue'24import Vuetify from 'vuetify/lib'25Vue.use(Vuetify)26Vue.prototype.$vuetify = new Vuetify()27import Vue from 'vue'28import Vuetify from 'vuet

Using AI Code Generation

1Cypress.Commands.add("Tween", (element, duration, props) => {2    .window()3    .then((win) => {4      return new Cypress.Promise((resolve, reject) => {5        win.TweenLite.to(element, duration, {6        });7      });8    })9    .then((element) => cy.wrap(element));10});11Cypress.Commands.add("Tween", (element, duration, props) => {12    .window()13    .then((win) => {14      return new Cypress.Promise((resolve, reject) => {15        win.TweenLite.to(element, duration, {16        });17      });18    })19    .then((element) => cy.wrap(element));20});21Cypress.Commands.add("Tween", (element, duration, props) => {22    .window()23    .then((win) => {24      return new Cypress.Promise((resolve, reject) => {25        win.TweenLite.to(element, duration, {26        });27      });28    })29    .then((element) => cy.wrap(element));30});31Cypress.Commands.add("Tween", (element, duration, props) => {32    .window()33    .then((win) => {34      return new Cypress.Promise((resolve, reject) => {35        win.TweenLite.to(element, duration, {

StackOverFlow community discussions

Questions

Discussion

Is there a reliable way to have Cypress exit as soon as a test fails?

Accessing href attribute using invoke() in each() Cypress

Cypress error. cy.type() failed because it requires a valid typeable element

Get native HTML element in Cypress

How to save a variable/text to use later in Cypress test?

Should e2e tests persist data in real databases?

Randomising element selection for Cypress tests

CYPRESS: Function to check if an button is disabled or not

How to get current date using cy.clock()

cy.url not returning a string as expected

You can also use this Cypress plugin meanwhile Cypress does not support this feature natively: https://www.npmjs.com/package/cypress-fail-fast

Add the plugin to devDependencies:

npm i --save-dev cypress-fail-fast

Inside cypress/plugins/index.js:

module.exports = (on, config) => {
  require("cypress-fail-fast/plugin")(on, config);
  return config;
};

At the top of cypress/support/index.js:

import "cypress-fail-fast";

https://stackoverflow.com/questions/58657895/is-there-a-reliable-way-to-have-cypress-exit-as-soon-as-a-test-fails

I don't think .get() is appropriate - it only works from the <body> not from each '.bms-scoreboard__game-tile--mls'.

Try .find() instead

With jQuery operators

cy.get('.bms-scoreboard__game-tile--mls')
  .each(($el,index,$list) => {
    const href = $el.find('a').attr('href')
    cy.request(href)
      .its('status')
      .should('eq', 200)
  })
})

or with Cypress operators

cy.get('.bms-scoreboard__game-tile--mls')
  .each(($el,index,$list) => {
    cy.wrap($el).find('a')
      .invoke('attr','href')
      .then(href => {
        cy.request(href)
           .its('status')
           .should('eq',200)
      })
  })
})

or move "find" into first selector

cy.get('.bms-scoreboard__game-tile--mls a')
  .each($a => {
    const href = $a.attr('href')
    cy.request(href)
      .its('status')
      .should('eq', 200)
  })
})

https://stackoverflow.com/questions/71356899/accessing-href-attribute-using-invoke-in-each-cypress

You should be able to find an <input> within the <div>.

Not sure exactly what selectors you used, but this would be an example:

cy.get('div.mat-form-field-infix')
  .find('input')
  .type('21-10-2022')

https://stackoverflow.com/questions/74202946/cypress-error-cy-type-failed-because-it-requires-a-valid-typeable-element

In cypress, first() is a command that will be chained to .get() and retry for that whole selection until timeout. That is why you can't really obtain the native element from it.

You can however yield the command, and access the element inside .then() by passing a function to it.

For example, from the Cypress documentation on this EXACT question:

cy.get('.foo').then(($el) => {
  const el = $el.get(0) //native DOM element
})

https://stackoverflow.com/questions/58879901/get-native-html-element-in-cypress

I just came across this article that explains how and why you store a variable and then use it later in the "Cypress way":

https://www.stevenhicks.me/blog/2020/02/working-with-variables-in-cypress-tests/

In respect to how it should work, here is my example which first, collects the message (the message is shown for only 3 secs then disappears). Secondly, it gets the value using the @ sign. Lastly my code passes the stored message through to an empty function constructed to assert that the value Portsmouth is contained within the message.

it('Current Port change', () => {
  cy.get('#viewport').find('div[id=message]').then(message => {
    let wags = message;
    cy.wrap(wags).as('wags')
  });

  cy.get('@wags').then(wags => {
     expect(wags).to.contain("Portsmouth")
  });
});

let me know if you need further clarification

https://stackoverflow.com/questions/59184571/how-to-save-a-variable-text-to-use-later-in-cypress-test

I'm currently working at a large well-known company on our test tools and frameworks team. So while I'm no expert, it is something that's part of my job. I'm going to be talking specifically about web testing. Testing is somewhat different for native apps like iOS and Android and I'm not super familiar with those aspects.

The terminology between e2e (end to end) and integration tests is somewhat interchangeable, while unit tests have a more specific definition.

Generally e2e/integration tests should be runnable in dev and production environments. Depending on your setup, your dev environment is probably using some semi-frequently updated snapshot of your production db. In other cases, your local environment may be hitting the actual production db. There are pros/cons to both approaches, but it largely depends on the scale of your company or project. For example, if you're at a large company with dedicated teams you can see many changes a day hitting production databases vs a small team where a weekly snapshot of the prod db is probably good enough for testing locally. i At the base level, all integration tests should be treated as real. When dealing with web apps there are lots of other factors we have to take into account like different web browsers, network activity / availability, etc. So mocking out data for api calls would allow for super fast testing, but then adds another level of complexity with making sure the mocks stay up to date with the real-world database.

Running integration tests locally should more or less be doing the same thing against your dev server that they will be doing against staging and production. With the exception of having the app detecting whether its running in a dev, staging, or production environment to switch out URL's and various credentials, the app should be expected to behave exactly the same way.

In regards to your question about authentication, the answer is yes. Lets look at 2 examples that show different considerations.

Suppose your project is very small. You create some real accounts on production and your db gets snapshotted weekly for use in your local dev environment. You just run your integration tests with one or more of those users as needed. Since the local tests are only hitting your local db, you don't need to worry about the data being generated since it won't affect production. Other engineers on your team can use the same user(s) and not worry about it. If one engineer makes some changes to the db schema, ORM, etc then everyone just gets a new copy of the db snapshot and continues working.

Now for the other extreme. Suppose your project is very big. Millions of users and hundreds of employees all collectively making changes to the codebase and db every day. There are all kinds of ways that infrastructures are setup to handle various engineering tasks. There's too much data and the db changes too often to make using local snapshots feasible. At this scale, you're probably doing continuous integration and running your tests on every commit. You want to do that so that incoming changes don't make it to production and cause major problems. You're probably running your local dev environments against either a constantly updated staging database, or perhaps even against your production db itself. (Try planning for the staging db as it avoids a lot of other problems.)

Now, having just a small set of dedicated test users starts to be a problem. Tests are running all the time, both automated and by dozens of engineers all working on their own bits of work. Since the staging db is probably shared, you easily start getting weird conflicts as the same test user is doing all kinds of things and starts causing tests to fail. A good solution I've seen for this is a kind of test account checkout server. You create say 100 or 1000 (or more) test user accounts. When your integration tests run, they literally check out a test user account from the server. When the tests are done, the integration tests clean up whatever changes they made on that user and tell the checkout server that the user is free again. Then it randomly gets checked out by someone/something else and the cycle continues.

So the take aways that related directly to your question:

You should always have dedicated test user accounts that are exactly the same as regular user accounts, just dedicated to testing.
Depending on scale of team and project, if small a few dedicated accounts is fine. If working on a much larger scale, you need many more dedicated test accounts and probably want an automated service that allows individual test runs to checkout users as needed.
Tests should always clean up after themselves. If a test creates a TODO that gets stored in the db. When the test is done running, that TODO should be deleted from the db. If you aren't constant about this, you'll eventually run into bugs and issues where data is inconsistent. God forbid this happens in production.
Only worry about mocking data for unit tests, unless you're working in a very good and dedicated engineering environment where you have people dedicated to keeping the db mocks up to date all the time. If you can do that, your integration tests will be very fast and you don't really have to worry about the db stuff as much. But its hard to maintain this over time without dedicated support.

https://stackoverflow.com/questions/55093017/should-e2e-tests-persist-data-in-real-databases

You could randomise the category based on the following:

const picked = Math.floor(Math.random()*3); // this gives you a random value from 0 - 3;

// using template string literals - we can add that into picked
cy.get(`div.tickets-info > div:nth-child(`${picked}`) > span > b`).type(3, {force: true})

from picked - you can have an array of elements which related to the categories:

const categories = ["Junior", "student", "normal", "senior"]

You could also have the values of the tickets in categories as objects and use that for calculating the total.

const categories = [{
  type: "junior", 
  value: 5
}, {
  type: "student",
  value: 3
}, {
  type: "normal"
  value: 10
}, {
  type: "senior",
  value: 3
}]

and you could say, use the picked value to calculate the total amount

const value = categories[picked].value * random_amount;
cy.get(".sum-field label:nth-child(1)").should("contain", value) // total

https://stackoverflow.com/questions/61427229/randomising-element-selection-for-cypress-tests

    cy.get('your_button').then(($button) => {
        if(cy.get($button).should('not.be.disabled')){
            //your logical code for button ACTIVE
        }
        else{
            //your logical code for button NOT ACTIVE
        }
    })

https://stackoverflow.com/questions/68594552/cypress-function-to-check-if-an-button-is-disabled-or-not

You can use day.js to get the current date and format it accordingly.

const dayjs = require('dayjs')

//In test
cy.log(dayjs().format('DD/MM/YYYY'))  //Prints todays date 30/09/2021
cy.get('textfield').type(dayjs().format('DD/MM/YYYY')) //input today's date in DD/MM/YYYY format

https://stackoverflow.com/questions/69395984/how-to-get-current-date-using-cy-clock

This should yield a string:

const returnedUrl = null
cy.url().then(url => {
  returnedUrl = url;
});

Cypress commands are asynchronous and must be followed by .then() in order to yield useful return values.

You can refer to this Github issue for more info: https://github.com/cypress-io/cypress/issues/2150

https://stackoverflow.com/questions/56710241/cy-url-not-returning-a-string-as-expected

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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.

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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.