diff --git a/src/services/inventory/__tests__/filamentstocks.test.js b/src/services/inventory/__tests__/filamentstocks.test.js
index 7296297..417c03a 100644
--- a/src/services/inventory/__tests__/filamentstocks.test.js
+++ b/src/services/inventory/__tests__/filamentstocks.test.js
@@ -74,13 +74,18 @@ describe('Filament Stock Service Route Handlers', () => {
 
   describe('newFilamentStockRouteHandler', () => {
     it('should create a new filament stock', async () => {
-      req.body = { filament: 'filament123', currentWeight: 1000 };
+      req.body = {
+        filament: 'filament123',
+        startingWeight: { net: 1000, gross: 1100 },
+        currentWeight: { net: 1000, gross: 1100 },
+      };
       const mockStock = { _id: '456', ...req.body };
-      newObject.mockResolvedValue(mockStock);
+      const mockStockEvent = { _id: '789' };
+      newObject.mockResolvedValueOnce(mockStock).mockResolvedValueOnce(mockStockEvent);
 
       await newFilamentStockRouteHandler(req, res);
 
-      expect(newObject).toHaveBeenCalled();
+      expect(newObject).toHaveBeenCalledTimes(2);
       expect(res.send).toHaveBeenCalledWith(mockStock);
     });
   });