Merged in chore/price-calculation-tests (pull request #3072)

chore: Add more price calculation tests

* Add tests and refactor types for getVoucherPrice

* Add tests for sumPackagesRequestedPrice

* Add tests for calculateVat


Approved-by: Joakim Jäderberg

packages/booking-flow/lib/utils/SelectRate/index.test.ts

@@ -4,7 +4,12 @@ import { AlertTypeEnum } from "@scandic-hotels/common/constants/alert"
 import { CurrencyEnum } from "@scandic-hotels/common/constants/currency"
 import { dt } from "@scandic-hotels/common/dt"
 
-import { filterOverlappingDates, sumPackages } from "./index"
+import {
+  calculateVat,
+  filterOverlappingDates,
+  sumPackages,
+  sumPackagesRequestedPrice,
+} from "./index"
 
 import type { specialAlertsSchema } from "@scandic-hotels/trpc/routers/hotels/schemas/hotel/specialAlerts"
 import type { z } from "zod"
@@ -98,3 +103,42 @@ describe("sumPackages", () => {
     expect(result).toEqual({ currency: CurrencyEnum.SEK, price: 350 })
   })
 })
+
+describe("sumPackagesRequestedPrice", () => {
+  it("returns 0 price for null packages", () => {
+    const result = sumPackagesRequestedPrice(null)
+    expect(result).toEqual({ currency: undefined, price: 0 })
+  })
+
+  it("returns 0 price for undefined packages", () => {
+    const result = sumPackagesRequestedPrice(undefined)
+    expect(result).toEqual({ currency: undefined, price: 0 })
+  })
+
+  it("returns 0 price for empty packages", () => {
+    const result = sumPackagesRequestedPrice([])
+    expect(result).toEqual({ currency: undefined, price: 0 })
+  })
+
+  it("sums prices of packages", () => {
+    const result = sumPackagesRequestedPrice([
+      { requestedPrice: { totalPrice: 100, currency: CurrencyEnum.SEK } },
+      { requestedPrice: { totalPrice: 200, currency: CurrencyEnum.SEK } },
+      { requestedPrice: { totalPrice: 50, currency: CurrencyEnum.SEK } },
+    ])
+    expect(result).toEqual({ currency: CurrencyEnum.SEK, price: 350 })
+  })
+})
+
+describe("calculateVat", () => {
+  it("calculates VAT correctly", () => {
+    expect(calculateVat(100, 25)).toEqual({
+      priceExclVat: 80,
+      vatAmount: 20,
+    })
+    expect(calculateVat(5, 100)).toEqual({
+      priceExclVat: 2.5,
+      vatAmount: 2.5,
+    })
+  })
+})

packages/booking-flow/lib/utils/SelectRate/index.tsx

@@ -9,7 +9,6 @@ import { ChildBedTypeEnum } from "@scandic-hotels/trpc/enums/childBedTypeEnum"
 import { RoomPackageCodeEnum } from "@scandic-hotels/trpc/enums/roomFilter"
 
 import type { CurrencyEnum } from "@scandic-hotels/common/constants/currency"
-import type { Packages } from "@scandic-hotels/trpc/types/packages"
 import type { JSX } from "react"
 
 import type { RoomPackageCodes } from "../../types/components/selectRate/roomFilter"
@@ -63,7 +62,12 @@ export function sumPackages(
   )
 }
 
-export function sumPackagesRequestedPrice(packages: Packages | null) {
+export function sumPackagesRequestedPrice(
+  packages:
+    | { requestedPrice: { totalPrice: number; currency?: CurrencyEnum } }[]
+    | null
+    | undefined
+) {
   if (!packages || !packages.length) {
     return {
       currency: undefined,