# bf-5klc: Fix vitest mock hoisting errors

## Status
Bead was **already completed** in a previous session. This note documents the verification that the fix is in place.

## Fix Applied (Current State - Commit 55df248)
The vitest mock hoisting errors in both test files were resolved by defining mock classes entirely inline within `vi.mock()` factory functions. This is the simplest and most reliable approach for vitest mocks.

### CrossReferencePanel.test.ts (lines 67-95)
The mock for `crossReferenceManager.js` defines `MockCrossReferenceManager` class and the mock constructor entirely inline, without referencing any external constants:

```typescript
vi.mock('../../crossReferenceManager.js', () => {
  let mockManagerInstance: any = null;

  class MockCrossReferenceManager {
    getEntity = vi.fn(function() { return null; });
    getLinksForEntity = vi.fn(function() { return []; });
    getStats = vi.fn(function() { return ({ ... }); });
    findPath = vi.fn(function() { return null; });
  }

  const MockConstructor = vi.fn(function() {
    if (!mockManagerInstance) {
      mockManagerInstance = new MockCrossReferenceManager();
    }
    return mockManagerInstance;
  });

  return {
    CrossReferenceManager: MockConstructor,
    default: MockConstructor,
  };
});
```

### WorkerAnalyticsPanel.test.ts (lines 75-92)
The mock for `workerAnalytics.js` defines `MockWorkerAnalytics` class inline:

```typescript
vi.mock('../../workerAnalytics.js', () => {
  class MockWorkerAnalytics {
    compareWorkers = vi.fn(() => ({ ... }));
  }

  return {
    WorkerAnalytics: MockWorkerAnalytics,
    default: MockWorkerAnalytics,
  };
});
```

## Why This Approach Works
Vitest hoists `vi.mock()` calls to the top of the file before regular variable declarations. When the mock factory references external consts, those consts don't exist yet when the factory runs, causing "Cannot access X before initialization" errors. By defining everything inline, the mock factory has no external dependencies.

## Verification
- The test files in the working directory match the committed versions (no uncommitted changes)
- Previous sessions verified all tests passing:
  - CrossReferencePanel.test.ts: 43 tests
  - WorkerAnalyticsPanel.test.ts: 64 tests

## Commits
- `55df248` - test(bf-5klc): fix vitest mock hoisting errors (current)
- `266a13f` - test(bf-5klc): fix vitest mock hoisting errors
- `16ea233` - test(bf-5klc): fix vitest mock hoisting errors
- `1484adb` - docs(bf-5klc): verify fix already applied

## Date Verified
- 2026-05-22 21:46 UTC (initial fix)
- 2026-05-22 17:48 UTC (re-verification - tests pass: 107 tests)