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Cypresstesting~5 mins

cypress-real-events for native events

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Introduction

Sometimes, Cypress commands don't trigger real browser events exactly like a user would. The cypress-real-events plugin helps send real native events to elements, making tests closer to real user actions.

When you want to test how your app reacts to real mouse or keyboard events.
When Cypress's default commands like .click() or .type() don't trigger certain event listeners.
When testing drag-and-drop or hover effects that need real browser events.
When you want to simulate real user interactions more accurately for better test reliability.
Syntax
Cypress
cy.get('selector').realClick()
cy.get('selector').realHover()
cy.get('selector').realType('text')

Use realClick() to send a native click event.

Use realHover() to simulate mouse hover with native events.

Examples
This clicks the button with a real native click event.
Cypress
cy.get('#submit-button').realClick()
This triggers a native mouse hover event on the menu item.
Cypress
cy.get('.menu-item').realHover()
This types the email text using native keyboard events.
Cypress
cy.get('input[name="email"]').realType('hello@example.com')
Sample Program

This test suite visits a sample page and uses cypress-real-events to perform native clicks, hovers, and typing. It then checks if the UI reacts correctly.

Cypress
describe('Real Events Test', () => {
  beforeEach(() => {
    cy.visit('https://example.cypress.io/commands/actions')
  })

  it('should real click the button and show alert', () => {
    cy.get('.action-btn').realClick()
    cy.get('.action-btn').should('have.class', 'active')
  })

  it('should real hover to show tooltip', () => {
    cy.get('.trigger-hover').realHover()
    cy.get('.tooltip').should('be.visible')
  })

  it('should real type in input', () => {
    cy.get('.action-email').realType('test@cypress.io')
    cy.get('.action-email').should('have.value', 'test@cypress.io')
  })
})
OutputSuccess
Important Notes

Make sure to install cypress-real-events plugin and import it in your cypress/support/e2e.js file.

Native events can be slower but more reliable for some UI behaviors.

Use real events when default Cypress commands don't trigger your app's event handlers.

Summary

cypress-real-events helps send real native browser events in Cypress tests.

Use it to simulate real user clicks, hovers, and typing more accurately.

This improves test reliability for UI behaviors that depend on native events.

Practice

(1/5)
1. What is the main purpose of using cypress-real-events in Cypress tests?
easy
A. To generate random test data automatically
B. To speed up test execution by skipping events
C. To simulate real native browser events like clicks and typing
D. To replace Cypress commands with custom assertions

Solution

  1. Step 1: Understand the role of native events in UI testing

    Native events like clicks and typing trigger real browser behaviors that Cypress commands sometimes do not fully simulate.

  2. Step 2: Identify what cypress-real-events provides

    This plugin sends real native events to elements, improving test accuracy and reliability.

  3. Final Answer:

    To simulate real native browser events like clicks and typing -> Option C

  4. Quick Check:

    Native event simulation = C [OK]
Hint: Remember: real-events means real user-like browser events [OK]
Common Mistakes:
  • Thinking it speeds up tests by skipping events
  • Confusing it with data generation tools
  • Assuming it replaces assertions
2. Which of the following is the correct syntax to import and use realClick from cypress-real-events in a test?
easy
A. import { realClick } from 'cypress-real-events'; cy.get('button').realClick();
B. import realClick from 'cypress-real-events'; cy.realClick('button');
C. require('cypress-real-events').realClick('button');
D. cy.get('button').clickReal();

Solution

  1. Step 1: Check the correct import style for ES modules

    The plugin exports named functions, so use import { realClick } from 'cypress-real-events'.

  2. Step 2: Use the function on a Cypress element

    Call realClick() on the element returned by cy.get().

  3. Final Answer:

    import { realClick } from 'cypress-real-events'; cy.get('button').realClick(); -> Option A

  4. Quick Check:

    Named import + method on element = B [OK]
Hint: Use named imports and call on element chain [OK]
Common Mistakes:
  • Using default import instead of named import
  • Calling realClick directly on cy object
  • Using require syntax in ES module context
3. Given the code below, what will be the result of the test?
cy.get('#input').realType('Hello');
cy.get('#input').should('have.value', 'Hello');
medium
A. The test passes because realType types the text correctly
B. The test fails because realType does not change input value
C. The test throws a syntax error due to wrong method name
D. The test passes but input value is empty

Solution

  1. Step 1: Understand what realType does

    realType sends native keyboard events to type text into input fields, updating their value.

  2. Step 2: Check the assertion

    The assertion checks if the input's value matches the typed text, which should be true after realType.

  3. Final Answer:

    The test passes because realType types the text correctly -> Option A

  4. Quick Check:

    realType updates input value = D [OK]
Hint: realType simulates typing, so input value updates [OK]
Common Mistakes:
  • Assuming realType does not affect input value
  • Confusing realType with click methods
  • Expecting syntax errors from correct method
4. You wrote this test but it fails:
cy.get('#submit').realClick();

What is the most likely reason for failure?
medium
A. The selector '#submit' is invalid syntax
B. realClick is not a valid method in cypress-real-events
C. You forgot to import Cypress
D. The element is not visible or not interactable

Solution

  1. Step 1: Check if element is visible and interactable

    realClick requires the element to be visible and enabled to send native click events.

  2. Step 2: Verify method and selector correctness

    realClick is valid and selector syntax is correct, so these are unlikely causes.

  3. Final Answer:

    The element is not visible or not interactable -> Option D

  4. Quick Check:

    Element visibility needed for realClick = A [OK]
Hint: Check element visibility before realClick [OK]
Common Mistakes:
  • Assuming realClick method does not exist
  • Blaming selector syntax without checking visibility
  • Forgetting to import cypress-real-events functions
5. You want to test a hover tooltip that only appears on a real mouse hover event. Which cypress-real-events method should you use to trigger this tooltip reliably?
hard
A. realClick()
B. realHover()
C. realType()
D. realFocus()

Solution

  1. Step 1: Identify the event that triggers the tooltip

    Tooltips often appear on mouse hover events, which require a real mouseover or hover event.

  2. Step 2: Match the correct cypress-real-events method

    realHover() sends native mouse hover events, triggering tooltips reliably.

  3. Final Answer:

    realHover() -> Option B

  4. Quick Check:

    Hover event needs realHover() = A [OK]
Hint: Use realHover() to simulate mouse hover events [OK]
Common Mistakes:
  • Using realClick() instead of realHover() for hover effects
  • Trying realType() which types text, not hover
  • Using realFocus() which focuses but doesn't hover
Recommended

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10 questions~5 mineasy hard