Testing Truths Series - Article #2 - The data-cy Ultimate Guide: The Test Selector Pattern Cypress Should Have Taught You

🧪 𝗧𝗲𝘀𝘁𝗶𝗻𝗴 𝗧𝗿𝘂𝘁𝗵𝘀 𝗦𝗲𝗿𝗶𝗲𝘀 — 𝗔𝗿𝘁𝗶𝗰𝗹𝗲 #𝟮
(A series where I share practical strategies to make testing simpler, faster & more reliable)

Have you ever had UI changes silently break your perfectly working Cypress tests?

One 𝗺𝗶𝗻𝗱 𝘀𝗵𝗶𝗳𝘁 can change that: 𝘥𝘢𝘵𝘢-* attributes for test selectors.

Instead of targeting fragile classes or nested DOM elements, use stable data-cy selectors:
✅ Makes tests resilient to UI changes
✅ Simplifies test maintenance
✅ Speeds up debugging

In Article #2 of my Testing Truths series, I’ve written a complete guide to help you adopt this approach.

📖 Read it here → The data-cy Ultimate Guide — The Test Selector Pattern Cypress Should Have Taught You

The data-cy Ultimate Guide: The Test Selector Pattern Cypress Should Have Taught You | by Sohail Mohammed | Sep, 2025 | JavaScript in Plain English

Why this one HTML attribute is the difference between junior and senior test engineers (and why it’s not even from Cypress).

javascript.plainenglish.io

💬 How are you managing your test selectors today?
🔁 Save this if you want fewer flaky tests in your life.