Add import and use of Pool from pg

api/src/category.router.test.ts

@@ -1,5 +1,6 @@
 import { describe, it } from 'node:test';
 import assert from 'node:assert/strict';
+import { Pool } from 'pg';
 import { createCategoryRouter } from './category.router.ts';
 import { CategoryRepository } from './category.repository.ts';
 import { Request, Response } from 'express';
@@ -45,11 +46,15 @@ function getRouteHandler(router: any): Function {
     return routeLayer.route.stack[0].handle; // Target the primary callback handler array element
 }
 
+const pool = new Pool({
+    connectionString: process.env.DATABASE_URL || process.env.INTERNAL_PROD_DB_URL
+});
+
 describe('Category Router Endpoints', () => {
 
     it('GET /tree{/:path} - should return 200 and structural JSON array data on valid requests', async () => {
         const mockRepo = createMockRepository('success');
-        const router = createCategoryRouter(mockRepo);
+        const router = createCategoryRouter(mockRepo, pool);
 
         const mockReq = { params: { path: 'Top' } } as unknown as Request;
         const { mockRes, data } = createMockResponse();
@@ -67,7 +72,7 @@ describe('Category Router Endpoints', () => {
 
     it('GET /tree{/:path} - should return 400 Bad Request if ltree path contains malformed formatting', async () => {
         const mockRepo = createMockRepository('success');
-        const router = createCategoryRouter(mockRepo);
+        const router = createCategoryRouter(mockRepo, pool);
 
         const mockReq = { params: { path: 'Top.Bad Path!' } } as unknown as Request;
         const { mockRes, data } = createMockResponse();