> For the complete documentation index, see [llms.txt](https://docs.does.qa/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.does.qa/elements/selector-types/test-id.md).

# Test ID

Test ID selectors target elements using attributes specifically added for testing purposes. These selectors are recommended because they are stable, not tied to styling or layout, and do not change as easily as class names or visible text. They’re ideal for creating reliable, long-lasting tests.

DoesQA searches for the following test-ids matching the given text: 

```
'data-test'
'data-testid'
'data-test-id'
'data-qa'
'data-qa-id'
'data-at'
'data-at-id'
'data-dqa'
'data-dqa-id'
'data-trackable'
'data-dyn-controlname'
'data-dyn-role'
'data-site-id'
```

**Examples:**

* `[data-testid="login-button"]`
* `[data-test="product-card-1"]`
* `[data-test-id="cart-item-count"]`
* `[data-qa="error-message"]` 


---

# Agent Instructions
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## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.does.qa/elements/selector-types/test-id.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.