view models

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

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+import { describe, it, expect } from 'vitest';
+import { LeagueMembershipsViewModel } from './LeagueMembershipsViewModel';
+import { LeagueMemberViewModel } from './LeagueMemberViewModel';
+import type { LeagueMemberDTO } from '../types/generated/LeagueMemberDTO';
+
+const createMembershipDto = (overrides: Partial<LeagueMemberDTO> = {}): LeagueMemberDTO => ({
+  driverId: 'driver-1',
+  leagueId: 'league-1',
+  joinedAt: '2024-01-01T00:00:00Z',
+  role: 'member',
+  ...overrides,
+});
+
+describe('LeagueMembershipsViewModel', () => {
+  it('maps memberships into LeagueMemberViewModel instances', () => {
+    const dto = {
+      memberships: [
+        createMembershipDto({ driverId: 'driver-1' }),
+        createMembershipDto({ driverId: 'driver-2' }),
+      ],
+    };
+
+    const viewModel = new LeagueMembershipsViewModel(dto, 'driver-1');
+
+    expect(viewModel.memberships).toHaveLength(2);
+    expect(viewModel.memberships[0]).toBeInstanceOf(LeagueMemberViewModel);
+    expect(viewModel.memberships[0].driverId).toBe('driver-1');
+    expect(viewModel.memberships[1].driverId).toBe('driver-2');
+  });
+
+  it('computes memberCount and hasMembers correctly when there are members', () => {
+    const dto = {
+      memberships: [
+        createMembershipDto({ driverId: 'driver-1' }),
+        createMembershipDto({ driverId: 'driver-2' }),
+      ],
+    };
+
+    const viewModel = new LeagueMembershipsViewModel(dto, 'driver-1');
+
+    expect(viewModel.memberCount).toBe(2);
+    expect(viewModel.hasMembers).toBe(true);
+  });
+
+  it('computes memberCount and hasMembers correctly when empty', () => {
+    const dto = {
+      memberships: [] as LeagueMemberDTO[],
+    };
+
+    const viewModel = new LeagueMembershipsViewModel(dto, 'driver-1');
+
+    expect(viewModel.memberCount).toBe(0);
+    expect(viewModel.hasMembers).toBe(false);
+  });
+});