view models

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

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+import { describe, it, expect } from 'vitest';
+import { LeagueCardViewModel } from './LeagueCardViewModel';
+import type { LeagueSummaryDTO } from '@/lib/types/generated/LeagueSummaryDTO';
+
+const createSummaryDto = (overrides: Partial<LeagueSummaryDTO & { description?: string }> = {}): LeagueSummaryDTO & { description?: string } => ({
+  id: 'league-1',
+  name: 'Test League',
+  description: 'Custom description',
+  ...overrides,
+});
+
+describe('LeagueCardViewModel', () => {
+  it('maps id, name and description from simple DTO', () => {
+    const dto = { id: 'simple-id', name: 'Simple League', description: 'Simple desc' };
+
+    const vm = new LeagueCardViewModel(dto);
+
+    expect(vm.id).toBe('simple-id');
+    expect(vm.name).toBe('Simple League');
+    expect(vm.description).toBe('Simple desc');
+  });
+
+  it('supports LeagueSummaryDTO without description and applies default description', () => {
+    const dto: LeagueSummaryDTO = { id: 'sum-1', name: 'Summary League' };
+
+    const vm = new LeagueCardViewModel(dto);
+
+    expect(vm.id).toBe('sum-1');
+    expect(vm.name).toBe('Summary League');
+    expect(vm.description).toBe('Competitive iRacing league');
+  });
+
+  it('prefers provided description when using LeagueSummaryDTO with extra description', () => {
+    const dto = createSummaryDto({ id: 'sum-2', name: 'Summary With Description', description: 'Provided description' });
+
+    const vm = new LeagueCardViewModel(dto);
+
+    expect(vm.id).toBe('sum-2');
+    expect(vm.name).toBe('Summary With Description');
+    expect(vm.description).toBe('Provided description');
+  });
+
+  it('falls back to default description when description is undefined', () => {
+    const dto = createSummaryDto({ description: undefined });
+
+    const vm = new LeagueCardViewModel(dto);
+
+    expect(vm.description).toBe('Competitive iRacing league');
+  });
+});