Highlight upgrades in package shop

resources/js/admin/mobile/__tests__/packageShop.test.ts

@@ -0,0 +1,33 @@
+import { describe, expect, it } from 'vitest';
+import { classifyPackageTier, selectRecommendedPackageId } from '../lib/packageShop';
+
+describe('classifyPackageTier', () => {
+  it('returns neutral when no active price', () => {
+    expect(classifyPackageTier(100, null)).toEqual({ isUpgrade: false, isDowngrade: false });
+  });
+
+  it('marks upgrades and downgrades by price', () => {
+    expect(classifyPackageTier(150, 100)).toEqual({ isUpgrade: true, isDowngrade: false });
+    expect(classifyPackageTier(80, 100)).toEqual({ isUpgrade: false, isDowngrade: true });
+  });
+});
+
+describe('selectRecommendedPackageId', () => {
+  const packages = [
+    { id: 1, price: 100, features: { advanced_analytics: false } },
+    { id: 2, price: 150, features: { advanced_analytics: true } },
+    { id: 3, price: 200, features: { advanced_analytics: true } },
+  ] as any;
+
+  it('returns null when no feature is requested', () => {
+    expect(selectRecommendedPackageId(packages, null, 100)).toBeNull();
+  });
+
+  it('selects the cheapest upgrade with the feature', () => {
+    expect(selectRecommendedPackageId(packages, 'advanced_analytics', 120)).toBe(2);
+  });
+
+  it('falls back to cheapest feature package if no upgrades exist', () => {
+    expect(selectRecommendedPackageId(packages, 'advanced_analytics', 250)).toBe(2);
+  });
+});