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## What Adds `AssetHelper` — a builder-pattern helper for mocking asset-related API endpoints in Playwright E2E tests, plus deterministic fixture data. ## Why 12+ asset-related API endpoints need mocking for asset browser tests (PNL-02), cloud dialog testing (DLG-08), and other asset-dependent E2E scenarios. Random mock data from existing `createMockAssets()` is unsuitable for deterministic E2E assertions. ## What's included ### `AssetHelper.ts` (307 LOC) - Fluent builder API: `assetHelper.withModels(3).withImages(5).mock()` - Stateful mock store (Map) for upload→verify→delete flows - Endpoint coverage: GET/POST/PUT/DELETE `/assets`, download progress - `mockError()` for error state testing - `clearMocks()` cleanup matching QueueHelper/FeatureFlagHelper pattern ### `assetFixtures.ts` (304 LOC) - 11 stable named constants (checkpoints, loras, VAE, embedding, inputs, outputs) - Factory functions: `generateModels()`, `generateInputFiles()`, `generateOutputAssets()` - Fixed IDs/dates/sizes — no randomness, safe for screenshot comparisons ### ComfyPage integration - Available as `comfyPage.assets` in all tests ## Testing - TypeScript compiles clean - Follows existing QueueHelper/FeatureFlagHelper conventions ## Unblocks - PNL-02: Asset browser tests (@Jaewon Yoon) - DLG-08: Assets modal / cloud dialog testing Part of: Test Coverage Q2 Overhaul ┆Issue is synchronized with this [Notion page](https://www.notion.so/PR-10545-test-infra-AssetHelper-with-builder-pattern-deterministic-fixtures-32f6d73d365081d3985ef079ff3dbede) by [Unito](https://www.unito.io) --------- Co-authored-by: GitHub Action <action@github.com>