fix: Address code review feedback

- Added explanation for logger mocking in tests/setup.ts
- Removed test files from coverage collection in jest.config.js
- Updated tests/README.md to clarify coverage approach and remove outdated threshold reference

Co-authored-by: mindesbunister <32161838+mindesbunister@users.noreply.github.com>

jest.config.js

@@ -19,7 +19,6 @@ const config = {
   setupFilesAfterEnv: ['<rootDir>/tests/setup.ts'],
   collectCoverageFrom: [
     'lib/trading/position-manager.ts',
-    'tests/**/*.ts',
   ],
   coverageReporters: ['text', 'text-summary', 'html'],
   verbose: true,

tests/README.md

@@ -50,6 +50,8 @@ These tests verify the **logic** of Position Manager functions in isolation:
 - Token vs USD conversion requirements
 - Price verification requirements
 
+**Note:** Coverage metrics are calculated against `lib/trading/position-manager.ts` but will be low because tests extract and validate logic patterns without importing the file directly. This avoids complex mocking while still validating critical trading logic.
+
 The tests extract and validate the pure calculation logic without importing the actual Position Manager, avoiding complex mocking of:
 - Drift blockchain connections
 - Pyth price feeds
@@ -208,17 +210,15 @@ npm test -- tests/integration/position-manager/
 Tests run automatically in CI with:
 - JUnit XML reports for test results
 - Coverage reports in HTML and text formats
-- Failure threshold of 60% coverage
 
-Configure in `jest.config.js`:
+Run tests with coverage report:
 
-```javascript
-coverageThreshold: {
-  global: {
-    branches: 60,
-    functions: 60,
-    lines: 60,
-    statements: 60,
-  },
-},
+```bash
+npm run test:coverage
+```
+
+Run tests in CI mode with JUnit reporter:
+
+```bash
+npm run test:ci
 ```

tests/setup.ts

@@ -33,6 +33,10 @@ declare global {
 }
 
 // Mock logger to reduce noise during tests
+// Logger is mocked to:
+// 1. Prevent console output during test runs
+// 2. Isolate tests from external I/O operations
+// 3. Enable verification of logging calls if needed
 jest.mock('../lib/utils/logger', () => ({
   logger: {
     log: jest.fn(),