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/stores/enter-details/helpers.test.ts

@@ -2,7 +2,11 @@ import { describe, expect, it } from "vitest"
 
 import { CurrencyEnum } from "@scandic-hotels/common/constants/currency"
 
-import { getAdditionalPrice, getRedemptionPrice } from "./helpers"
+import {
+  getAdditionalPrice,
+  getRedemptionPrice,
+  getVoucherPrice,
+} from "./helpers"
 
 type GetAdditionalPriceParams = Parameters<typeof getAdditionalPrice>
 describe("getAdditionalPrice", () => {
@@ -307,3 +311,150 @@ describe("getRedemptionPrice", () => {
     })
   })
 })
+
+describe("getVoucherPrice", () => {
+  it("returns price 0 and default currency when rooms are empty", () => {
+    const result = getVoucherPrice([], 1)
+
+    expect(result).toEqual({
+      local: { price: 0, currency: CurrencyEnum.Voucher },
+      requested: undefined,
+    })
+  })
+
+  it("returns price for single room with voucher price", () => {
+    const nights = 1
+    const result = getVoucherPrice(
+      [
+        {
+          adults: 1,
+          breakfast: false,
+          roomFeatures: [],
+          roomRate: {
+            voucher: {
+              numberOfVouchers: 1,
+            },
+          },
+        },
+      ],
+      nights
+    )
+
+    expect(result).toEqual({
+      local: {
+        price: 1,
+        currency: CurrencyEnum.Voucher,
+        additionalPrice: 0,
+      },
+      requested: undefined,
+    })
+  })
+
+  it("returns price for single room with multiple nights", () => {
+    const nights = 3
+    const result = getVoucherPrice(
+      [
+        {
+          adults: 1,
+          breakfast: false,
+          roomFeatures: [],
+          roomRate: {
+            voucher: {
+              numberOfVouchers: 3,
+            },
+          },
+        },
+      ],
+      nights
+    )
+
+    expect(result).toEqual({
+      local: {
+        price: 3,
+        currency: CurrencyEnum.Voucher,
+        additionalPrice: 0,
+      },
+      requested: undefined,
+    })
+  })
+
+  it("returns price for multiple rooms with multiple nights", () => {
+    const nights = 3
+    const result = getVoucherPrice(
+      [
+        {
+          adults: 1,
+          breakfast: false,
+          roomFeatures: [],
+          roomRate: {
+            voucher: {
+              numberOfVouchers: 3,
+            },
+          },
+        },
+        {
+          adults: 1,
+          breakfast: false,
+          roomFeatures: [],
+          roomRate: {
+            voucher: {
+              numberOfVouchers: 2,
+            },
+          },
+        },
+      ],
+      nights
+    )
+
+    expect(result).toEqual({
+      local: {
+        price: 5,
+        currency: CurrencyEnum.Voucher,
+        additionalPrice: 0,
+      },
+      requested: undefined,
+    })
+  })
+
+  it("does not return price for room without voucher", () => {
+    const nights = 3
+    const result = getVoucherPrice(
+      [
+        {
+          adults: 1,
+          breakfast: false,
+          roomFeatures: [],
+          roomRate: {
+            redemption: {
+              localPrice: {
+                pointsPerStay: 150,
+                currency: CurrencyEnum.POINTS,
+                additionalPricePerStay: 0,
+              },
+            },
+          },
+        },
+        {
+          adults: 1,
+          breakfast: false,
+          roomFeatures: [],
+          roomRate: {
+            voucher: {
+              numberOfVouchers: 2,
+            },
+          },
+        },
+      ],
+      nights
+    )
+
+    expect(result).toEqual({
+      local: {
+        price: 2,
+        currency: CurrencyEnum.Voucher,
+        additionalPrice: 0,
+      },
+      requested: undefined,
+    })
+  })
+})