add cart calculation tests

src/pages/dashboard/Content/Tariffs/cartCalcs.test.ts

@@ -0,0 +1,37 @@
+import { Cart } from "../../../../model/cart";
+import { Tariffs } from "../../../../model/tariff";
+import { User } from "../../../../model/user";
+import { exampleCartValues } from "../../../../stores/mocks/exampleCartValues";
+import { calcCartData } from "./cartCalcs";
+
+
+function findPrivilegeById(id: string) {
+    const privilege = exampleCartValues.privileges.find(privilege => privilege.privilegeId === id);
+    if (!privilege) throw new Error(`Privilege not found with id ${id}`);
+
+    return privilege;
+}
+
+describe("cart tests", () => {
+    it("test case 1", () => {
+        const user: User = exampleCartValues.testCases[0].input.UserInformation;
+        const tariffs: Tariffs.Tariff[] = exampleCartValues.testCases[0].input.Products.map((testProduct) => ({
+            amount: testProduct.Amount,
+            customPrice: testProduct.Price,
+            privilege: findPrivilegeById(testProduct.ID)
+        }));
+        const cartItems: Cart.CartItem[] = tariffs.map(tariff => {
+            const pricePerUnit = tariff.customPrice ?? tariff.privilege.price;
+            const price = pricePerUnit * tariff.amount;
+
+            const cartItem: Cart.CartItem = {
+                item: tariff,
+                price,
+            };
+
+            return cartItem;
+        });
+        
+        // TODO
+    });
+});