oss-slu/image-recognition-integration-system

[FEATURE]: Add unit tests for indexedDbHelpers

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#62 opened on Sep 1, 2025

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Description

Scenario

Given the indexedDbHelpers.ts utility provides CRUD functions for images in IndexedDB,
When developers write unit tests for each helper function,
Then data persistence, retrieval, and error handling should be verified with automated tests.

Acceptance Criteria

  • Test suite tests/indexedDbHelpers.test.ts created.
  • Covers all CRUD helper functions.
    • Create
    • Read
    • Update
    • Delete
  • Tests pass locally and in CI.
  • Documentation/comments in test file for future contributors.

Additional Context

Reference file: utils/indexedDbHelpers.ts

Jest testing framework documentation https://jestjs.io/docs/getting-started

IndexedDB documentation: https://developer.mozilla.org/en-US/docs/Web/API/IndexedDB_API

IndexedDB is used in:

Contributor guide

Research direction
Read the existing `indexedDbHelpers.ts` to understand the CRUD functions, then use a library like `fake indexeddb` to mock IndexedDB in Jest tests. Write tests covering create, read, update, delete operations and error handling. Refer to Jest documentation and the linked IndexedDB MDN page.
Tech stack
typescriptjest
Domain
frontendtesting
Issue type
Test
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
3
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitTypeScriptJest
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70