---
title: "Select the correct prepared caption track"
description: "Verify caption controls select the intended language track and that turning captions off removes visible caption text from the prepared video."
canonical_url: "https://vostride.com/agent-library/files-media/caption-track-selection.md"
md_url: "https://vostride.com/agent-library/files-media/caption-track-selection.md"
content_kind: "recipe"
topic: "files-media"
---

# Select the correct prepared caption track

Verify caption controls select the intended language track and that turning captions off removes visible caption text from the prepared video.

## Risk

A track menu can highlight one language while the player keeps rendering another. Use a deterministic short clip with different visible caption text, and avoid treating this as a complete accessibility audit.

## Fixtures

- A test video already exists in the application with English and Spanish caption tracks.
- At the fixture cue, the English track reads Check the green door and Spanish reads Revisa la puerta verde.
- Playback and the cue location are controlled by a prepared media fixture; source-track validity is verified outside the screenshot run.

## Steps

1. Open the test video, start playback through its UI, and navigate to the prepared cue using supported player controls.
2. Choose English captions and verify Check the green door is visibly rendered during that cue.
3. Switch to Spanish and revisit the cue; verify Revisa la puerta verde appears and the English caption does not.
4. Turn captions Off, revisit the cue, and verify no caption text overlays the video.
5. Reenable English and verify the expected caption returns, recording the selected track label and rendered text together.

## Expected results

- The visible cue text matches the independently prepared selected-language track.
- Switching languages replaces the caption rather than stacking two tracks.
- Off suppresses rendered captions while the video itself continues to display its fixture content.

## False-pass traps

- A highlighted menu option without visible cue text does not verify the track actually changed.
- Caption presence alone does not establish timing accuracy, semantic accessibility, or full caption quality.

## Cleanup

- Reset caption preferences for the QA account and remove the test clip if it is disposable.

## Use with agent-qa

Adapt this test design to your application's acceptance criteria and configured target using the [recipe execution guide](/agent-library/software-factory/turn-a-recipe-into-an-agent-qa-test.md). External fixture setup and non-UI checks require your own supported hooks or test tooling. Validate the authored test, execute it, and inspect the completed evidence; this recipe is not a recorded test result.

## References

- [agent-qa test](/docs/agent-qa/configuration/test.md)
- [agent-qa first test](/docs/agent-qa/guides/first-test.md)
- [agent-qa web testing](/docs/agent-qa/guides/web-testing.md)

- [Files and media QA recipes](/agent-library/files-media.md)
- [Software factory QA library](/agent-library.md)