Cypress
Cypress and Jest are not competitors—they test different things. Jest runs in Node.js and tests individual functions, modules, and components in isolation. Cypress runs in a real browser and tests complete user flows end-to-end. The decision isn't "Cypress or Jest"—it'
Visual Testing
Cypress is the most popular JavaScript end-to-end testing framework. Out of the box, it doesn't include visual regression — but adding it is straightforward, and you have several good options depending on your needs. This guide covers three approaches: the lightweight cypress-image-snapshot plugin, Percy'
Cypress
Cypress custom commands let you extract repeated test logic into named, reusable commands that read like domain language: cy.login(), cy.createOrder(), cy.assertProductCard(). They live in cypress/support/commands.js, are available in all test files automatically, and accept parameters like regular functions. Well-designed custom commands reduce test
Testing
Cypress component testing works across frameworks. React gets the most coverage in tutorials, but Vue 3 and Angular both have first-class support. This guide covers the setup, idiomatic patterns, and real-world considerations for each. Vue 3 Component Testing Setup npm install --save-dev cypress npx cypress open Copy
Testing
End-to-end tests verify your whole application works together. Unit tests verify individual functions in isolation. Component tests sit between them: they mount a single React component in a real browser, let you interact with it, and assert on what the user actually sees. Cypress component testing brings the
Allure
Allure Report integrates with Cypress via the allure-cypress plugin. It captures test steps, attaches screenshots on failure, records test history, and generates interactive HTML reports. Every failed test shows exactly which step failed and what the page looked like. Key Takeaways allure-cypress is the official reporter plugin. Install
Test Reliability
Cypress flaky tests are particularly frustrating because Cypress has automatic waiting built in — so why are tests still timing out?
Testing
Cypress Cloud (formerly Dashboard) offers parallelization as a paid feature.
Test Reporting
Plain Mocha test output gets the job done in local development, but in CI environments and for team review, you need richer reporting.
Testing Tools
Cypress and Playwright are the two dominant end-to-end testing frameworks for web applications.
Testing
Percy is a visual testing platform from BrowserStack that integrates directly with Cypress and Playwright.
Testing
Choosing a browser automation framework is one of the more consequential decisions a QA team makes. The wrong choice means rewriting tests later.