Set up test

apps/api/src/app/portfolio/calculator/roai/portfolio-calculator-btceur-in-base-currency-eur.spec.ts

@@ -131,9 +131,13 @@ describe('PortfolioCalculator', () => {
 
       const portfolioSnapshot = await portfolioCalculator.computeSnapshot();
 
-      expect(portfolioSnapshot.positions[0]).toMatchObject({
+      expect(portfolioSnapshot).toMatchObject({
-        fee: new Big('4.46'),
+        positions: [
-        feeInBaseCurrency: new Big('3.94')
+          {
+            fee: new Big('4.46'),
+            feeInBaseCurrency: new Big('3.94')
+          }
+        ]
       });
     });
   });