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## Summary Centralized all download functionalities across app. Then changed downloadFile on the cloud distribution to stream assets via blob fetches while desktop/local retains direct anchor downloads. This fixes issue where trying to download cross-origin resources opens them in the window, potentially losing the user's unsaved changes. ## Changes - **What**: Moved `downloadBlob` into `downloadUtil`, routed all callers (3D exporter, recording manager, node template export, workflow/palette export, Litegraph save, ~~`useDownload` consumers~~) through shared helpers, and changed `downloadFile` to `fetch` first when `isCloud` so cross-origin URLs download reliably - `useDownload` is the exception since we simply cannot do model downloads through blob (forcing user to transfer the entire model data twice is bad). Fortunately on cloud, the user doesn't need to download models locally anyway. ┆Issue is synchronized with this [Notion page](https://www.notion.so/PR-6188-refactor-centralize-all-download-utils-across-app-and-apply-special-cloud-specific-behav-2946d73d365081de9f27f0994950511d) by [Unito](https://www.unito.io)
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:
- Component Testing - How to test Vue components
- Unit Testing - How to test utility functions, composables, and other non-component code
- Store Testing - How to test Pinia stores specifically
Testing Structure
The ComfyUI Frontend project uses a mixed approach to unit test organization:
- Component Tests: Located directly alongside their components with a
.spec.tsextension - 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 thebrowser_tests/directory, so it will not be covered here.
Test Frameworks and Libraries
Our tests use the following frameworks and libraries:
- Vitest - Test runner and assertion library
- @vue/test-utils - Vue component testing utilities
- Pinia - For store testing
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.