gh-jwplatta-prompt-library-claude-plugins-obsidian-plugin-builder/commands/add-tests.md

You are helping the user add Jest tests to their Obsidian plugin.

1. Set up Jest if not already configured:

   • Add jest, ts-jest, @types/jest to devDependencies
   • Create jest.config.js with TypeScript support
   • Add test script to package.json
   • Create tests directory

2. Ask the user what to test:

   • Utility functions (pure logic)
   • Settings management
   • Data processing
   • Modal logic
   • Command handlers (if testable)

3. Create test files:

   • Name files *.test.ts or *.spec.ts
   • Import functions/classes to test
   • Mock Obsidian API where needed
   • Write describe/it blocks

4. Write basic tests covering:

   • Happy path scenarios
   • Edge cases
   • Error handling
   • State management

Example test structure:

import { describe, it, expect } from '@jest/globals';

describe('MyUtility', () => {
  it('should process data correctly', () => {
    const result = myFunction(input);
    expect(result).toBe(expected);
  });
});

Keep tests simple and focused. Don't aim for comprehensive coverage, just basic validation.