Merged in chore/SW-3321-move-selectratecontext-to- (pull request #2729)

chore(SW-3321): Moved Select rate context to booking-flow package

* chore(SW-3321): Moved Select rate context to booking-flow package

* chore(SW-3321): Optimised code


Approved-by: Joakim Jäderberg

packages/booking-flow/lib/contexts/SelectRate/getSelectedPackages.test.ts

@@ -0,0 +1,72 @@
+import { describe, expect, it } from "vitest"
+
+import { CurrencyEnum } from "@scandic-hotels/common/constants/currency"
+
+import { getSelectedPackages } from "./getSelectedPackages"
+
+import type { PackageEnum } from "@scandic-hotels/trpc/types/packages"
+
+import type { Package } from "./types"
+
+type FirstParameter = Parameters<typeof getSelectedPackages>[0]
+
+const localPrice = { currency: CurrencyEnum.Unknown, price: 0, totalPrice: 0 }
+describe("getSelectedPackages", () => {
+  const availablePackages: Partial<Package>[] = [
+    {
+      code: "PKG1" as PackageEnum,
+      localPrice,
+    },
+    { code: "PKG2" as PackageEnum, localPrice },
+    { code: "PKG3" as PackageEnum, localPrice },
+  ]
+
+  it("returns empty array if availablePackages is undefined", () => {
+    const result = getSelectedPackages(undefined, ["PKG1" as PackageEnum])
+    expect(result).toMatchObject([])
+  })
+
+  it("returns empty array if selectedPackages is undefined", () => {
+    // @ts-expect-error testing undefined
+    const result = getSelectedPackages(availablePackages, undefined)
+    expect(result).toMatchObject([])
+  })
+
+  it("returns empty array if selectedPackages is empty", () => {
+    const result = getSelectedPackages(availablePackages as FirstParameter, [])
+    expect(result).toMatchObject([])
+  })
+
+  it("returns only the selected packages", () => {
+    const result = getSelectedPackages(availablePackages as FirstParameter, [
+      "PKG1" as PackageEnum,
+      "PKG3" as PackageEnum,
+    ])
+    expect(result).toMatchObject([{ code: "PKG1" }, { code: "PKG3" }])
+  })
+
+  it("returns empty array if no selectedPackages match", () => {
+    const result = getSelectedPackages(availablePackages as FirstParameter, [
+      "PKG4" as PackageEnum,
+    ])
+    expect(result).toMatchObject([])
+  })
+
+  it("returns all packages if all are selected", () => {
+    const result = getSelectedPackages(availablePackages as FirstParameter, [
+      "PKG1" as PackageEnum,
+      "PKG2" as PackageEnum,
+      "PKG3" as PackageEnum,
+    ])
+    expect(result).toMatchObject(availablePackages)
+  })
+
+  it("handles duplicate selectedPackages gracefully", () => {
+    const result = getSelectedPackages(availablePackages as FirstParameter, [
+      "PKG1" as PackageEnum,
+      "PKG1" as PackageEnum,
+      "PKG2" as PackageEnum,
+    ])
+    expect(result).toMatchObject([{ code: "PKG1" }, { code: "PKG2" }])
+  })
+})