Preserving state between tests in Cypress - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does 'preserving state between tests' mean in Cypress?

It means keeping certain data like cookies or local storage so tests can share the same session or user state without logging in again.

intermediate

How can you preserve cookies between tests in Cypress?

Use cy.getCookie() and cy.setCookie() or use Cypress.Cookies.preserveOnce() inside beforeEach() hooks to keep cookies across tests.

intermediate

What is the purpose of cy.session() in Cypress?

cy.session() helps save and restore browser session data like cookies and local storage to speed up tests and keep user state between tests.

beginner

Why should tests avoid relying on preserved state when possible?

Because tests should be independent and repeatable. Relying on preserved state can hide bugs and make tests harder to debug.

advanced

Which Cypress command helps preserve local storage between tests?

You can use cy.restoreLocalStorage() and cy.saveLocalStorage() with custom commands or plugins to keep local storage data between tests.

Which Cypress command is designed to save and restore session data between tests?

A cy.reload()

B cy.session()

C cy.visit()

D cy.clearCookies()

cy.session() saves and restores session data like cookies and local storage to preserve state between tests.

Why is preserving state between tests useful?

A To speed up tests by avoiding repeated logins

B To make tests dependent on each other

C To hide bugs in the application

D To clear all data after each test

Preserving state helps tests run faster by reusing login sessions or data instead of repeating setup steps.

What is a risk of relying too much on preserved state in tests?

A Tests become slower

B Tests may fail randomly

C Tests lose independence and may hide bugs

D Tests cannot run in parallel

Tests should be independent. Preserved state can cause hidden bugs and make debugging harder.

Which of these is NOT a way to preserve state in Cypress?

A Saving cookies manually

B Using cy.preserveOnce()

C Using cy.session()

D Using cy.clearLocalStorage()

cy.clearLocalStorage() clears data and does not preserve state.

To preserve local storage between tests, you should:

A Use cy.saveLocalStorage() and cy.restoreLocalStorage() custom commands

B Use cy.clearCookies()

C Reload the page after each test

D Avoid using local storage

Custom commands like cy.saveLocalStorage() and cy.restoreLocalStorage() help keep local storage data between tests.

Explain how you can preserve user login state between Cypress tests and why it is helpful.

Think about saving cookies or session data to avoid logging in every test.

Describe the risks of relying on preserved state between tests and how to balance it with test independence.

Consider test reliability and debugging.