---
title: "Tell Copilot Where To Find Test Selectors"
url: https://daily.dev/posts/tell-copilot-where-to-find-test-selectors-baidnymns
source_url: https://glebbahmutov.com/blog/tell-copilot-where-to-find-test-selectors
type: article
source: "Gleb Bahmutov"
published: 2026-05-31T07:53:32.302Z
updated: 2026-05-31T09:02:38.425Z
tags: ["testing", "github", "cypress"]
reading_time: 3
upvotes: 0
comments: 0
language: en
---

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# Tell Copilot Where To Find Test Selectors

**[Gleb Bahmutov](https://daily.dev/sources/glebbahmutov)** · 3 min read · 0 upvotes · 0 comments

## Summary

When using GitHub Copilot to write Cypress end-to-end tests, the AI generates generic and often flaky test selectors because it has no knowledge of your app's DOM structure. A practical trick is to add a Copilot instructions file that explicitly points to the relevant source files (e.g., the route component) for each spec file. This allows Copilot to discover stable `data-cy` attributes and generate precise, reliable selectors — benefiting the whole team regardless of their familiarity with the project structure.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <https://glebbahmutov.com/blog/tell-copilot-where-to-find-test-selectors>

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---

Tags: [#testing](https://daily.dev/tags/testing), [#github](https://daily.dev/tags/github), [#cypress](https://daily.dev/tags/cypress)

[View this post on daily.dev](https://daily.dev/posts/tell-copilot-where-to-find-test-selectors-baidnymns)