view models

apps/website/lib/view-models/SponsorViewModel.test.ts

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+import { describe, it, expect } from 'vitest';
+import { SponsorViewModel } from './SponsorViewModel';
+
+describe('SponsorViewModel', () => {
+  it('maps basic sponsor fields from DTO', () => {
+    const dto = {
+      id: 'sp-1',
+      name: 'Acme Corp',
+      logoUrl: '/logo.png',
+      websiteUrl: 'https://acme.example',
+    };
+
+    const vm = new SponsorViewModel(dto as any);
+
+    expect(vm.id).toBe(dto.id);
+    expect(vm.name).toBe(dto.name);
+    expect(vm.logoUrl).toBe(dto.logoUrl);
+    expect(vm.websiteUrl).toBe(dto.websiteUrl);
+  });
+
+  it('does not assign optional fields when they are undefined', () => {
+    const dto = {
+      id: 'sp-2',
+      name: 'Minimal Sponsor',
+      logoUrl: undefined,
+      websiteUrl: undefined,
+    };
+
+    const vm = new SponsorViewModel(dto as any);
+
+    expect(vm.id).toBe(dto.id);
+    expect(vm.name).toBe(dto.name);
+    expect('logoUrl' in vm).toBe(false);
+    expect('websiteUrl' in vm).toBe(false);
+  });
+
+  it('exposes simple UI helpers', () => {
+    const withWebsite = new SponsorViewModel({ id: 'sp-3', name: 'With Site', websiteUrl: 'https://example.com' } as any);
+    const withoutWebsite = new SponsorViewModel({ id: 'sp-4', name: 'No Site' } as any);
+
+    expect(withWebsite.displayName).toBe(withWebsite.name);
+    expect(withWebsite.hasWebsite).toBe(true);
+    expect(withoutWebsite.hasWebsite).toBe(false);
+    expect(withWebsite.websiteLinkText).toBe('Visit Website');
+  });
+});