view models

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

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+import { describe, it, expect } from 'vitest';
+import { RaceResultsDetailViewModel } from './RaceResultsDetailViewModel';
+import { RaceResultViewModel } from './RaceResultViewModel';
+import type { RaceResultsDetailDTO } from '../types/generated/RaceResultsDetailDTO';
+import type { RaceResultDTO } from '../types/generated/RaceResultDTO';
+
+const createResult = (overrides: Partial<RaceResultDTO> = {}): RaceResultDTO => ({
+  driverId: 'driver-1',
+  driverName: 'Driver One',
+  avatarUrl: 'https://example.com/avatar.jpg',
+  position: 2,
+  startPosition: 3,
+  incidents: 1,
+  fastestLap: 90.5,
+  positionChange: 1,
+  isPodium: true,
+  isClean: true,
+  ...overrides,
+});
+
+const createDto = (overrides: Partial<RaceResultsDetailDTO & { results?: RaceResultDTO[] }> = {}): RaceResultsDetailDTO & { results?: RaceResultDTO[] } => ({
+  raceId: 'race-1',
+  track: 'Spa',
+  ...overrides,
+});
+
+describe('RaceResultsDetailViewModel', () => {
+  it('maps basic fields and wraps results into view models', () => {
+    const dto = createDto({
+      results: [createResult({ driverId: 'driver-1' }), createResult({ driverId: 'driver-2' })],
+    });
+
+    const viewModel = new RaceResultsDetailViewModel(dto, 'driver-1');
+
+    expect(viewModel.raceId).toBe('race-1');
+    expect(viewModel.track).toBe('Spa');
+    expect(viewModel.results).toHaveLength(2);
+    expect(viewModel.results[0]).toBeInstanceOf(RaceResultViewModel);
+  });
+
+  it('sorts results by position', () => {
+    const dto = createDto({
+      results: [
+        createResult({ driverId: 'driver-1', position: 3 }),
+        createResult({ driverId: 'driver-2', position: 1 }),
+        createResult({ driverId: 'driver-3', position: 2 }),
+      ],
+    });
+
+    const viewModel = new RaceResultsDetailViewModel(dto, 'driver-1');
+
+    const byPosition = viewModel.resultsByPosition;
+
+    expect(byPosition.map(r => r.position)).toEqual([1, 2, 3]);
+  });
+
+  it('sorts results by fastest lap', () => {
+    const dto = createDto({
+      results: [
+        createResult({ driverId: 'driver-1', fastestLap: 95 }),
+        createResult({ driverId: 'driver-2', fastestLap: 90 }),
+        createResult({ driverId: 'driver-3', fastestLap: 100 }),
+      ],
+    });
+
+    const viewModel = new RaceResultsDetailViewModel(dto, 'driver-1');
+
+    const byLap = viewModel.resultsByFastestLap;
+
+    expect(byLap.map(r => r.fastestLap)).toEqual([90, 95, 100]);
+  });
+
+  it('filters clean drivers', () => {
+    const dto = createDto({
+      results: [
+        createResult({ driverId: 'driver-1', isClean: true }),
+        createResult({ driverId: 'driver-2', isClean: false }),
+      ],
+    });
+
+    const viewModel = new RaceResultsDetailViewModel(dto, 'driver-1');
+
+    const clean = viewModel.cleanDrivers;
+
+    expect(clean).toHaveLength(1);
+    expect(clean[0].driverId).toBe('driver-1');
+  });
+
+  it('finds current user result by driver id', () => {
+    const dto = createDto({
+      results: [
+        createResult({ driverId: 'driver-1' }),
+        createResult({ driverId: 'driver-2' }),
+      ],
+    });
+
+    const viewModel = new RaceResultsDetailViewModel(dto, 'driver-2');
+
+    expect(viewModel.currentUserResult?.driverId).toBe('driver-2');
+  });
+
+  it('computes stats for total drivers, clean rate and average incidents', () => {
+    const dto = createDto({
+      results: [
+        createResult({ driverId: 'driver-1', isClean: true, incidents: 0 }),
+        createResult({ driverId: 'driver-2', isClean: false, incidents: 4 }),
+      ],
+    });
+
+    const viewModel = new RaceResultsDetailViewModel(dto, 'driver-1');
+
+    const stats = viewModel.stats;
+
+    expect(stats.totalDrivers).toBe(2);
+    expect(stats.cleanRate).toBeCloseTo(50);
+    expect(stats.averageIncidents).toBeCloseTo(2);
+  });
+
+  it('returns zeroed stats when there are no results', () => {
+    const dto = createDto({ results: [] });
+
+    const viewModel = new RaceResultsDetailViewModel(dto, 'driver-1');
+
+    const stats = viewModel.stats;
+
+    expect(stats.totalDrivers).toBe(0);
+    expect(stats.cleanRate).toBe(0);
+    expect(stats.averageIncidents).toBe(0);
+  });
+});