Files
ComfyUI_frontend/tests-ui
Terry Jia 379af28678 fix: handle Unicode characters in clipboard copy/paste and add Paste menu option (#7103)
## Summary
Use TextEncoder/TextDecoder for UTF-8 safe base64 encoding/decoding

When copying nodes containing non-Latin1 characters (e.g., Chinese
characters in localized_name field), btoa() throws an error:

InvalidCharacterError: Failed to execute 'btoa' on 'Window': The string
to be encoded contains characters outside of the Latin1 range.

The copy operation saved data to localStorage successfully, but failed
to write to the browser clipboard. On paste, the browser clipboard still
contained old data, causing the wrong node to be pasted.

<!-- Fixes #ISSUE_NUMBER -->
https://github.com/Comfy-Org/ComfyUI_frontend/issues/6993
https://github.com/Comfy-Org/ComfyUI_frontend/issues/5449
https://github.com/comfyanonymous/ComfyUI/issues/8481

## Screenshots (if applicable)
before

https://github.com/user-attachments/assets/8abd9049-91bb-4200-8853-e26753376007

after

https://github.com/user-attachments/assets/7d969f32-bb0f-4c7a-baa2-65d576a4eba2

┆Issue is synchronized with this [Notion
page](https://www.notion.so/PR-7103-fix-handle-Unicode-characters-in-clipboard-copy-paste-and-add-Paste-menu-option-2bd6d73d365081f39c40e7e7f832b97c)
by [Unito](https://www.unito.io)

---------

Co-authored-by: github-actions <github-actions@github.com>
2025-12-02 15:31:27 -08:00
..

ComfyUI Frontend Testing Guide

This guide provides an overview of testing approaches used in the ComfyUI Frontend codebase. These guides are meant to document any particularities or nuances of writing tests in this codebase, rather than being a comprehensive guide to testing in general. By reading these guides first, you may save yourself some time when encountering issues.

Testing Documentation

Documentation for unit tests is organized into three guides:

Testing Structure

The ComfyUI Frontend project uses a mixed approach to unit test organization:

  • Component Tests: Located directly alongside their components with a .spec.ts extension
  • Unit Tests: Located in the tests-ui/tests/ directory
  • Store Tests: Located in the tests-ui/tests/store/ directory
  • Browser Tests: These are located in the browser_tests/ directory. There is a dedicated README in the browser_tests/ directory, so it will not be covered here.

Test Frameworks and Libraries

Our tests use the following frameworks and libraries:

Getting Started

To run the tests locally:

# Run unit tests
pnpm test:unit

# Run unit tests in watch mode
pnpm test:unit:dev

Refer to the specific guides for more detailed information on each testing type.