core tests

core/rating/application/use-cases/SaveRatingUseCase.test.ts

@@ -0,0 +1,48 @@
+/**
+ * Unit tests for SaveRatingUseCase
+ */
+
+import { describe, it, expect, vi, beforeEach } from 'vitest';
+import { SaveRatingUseCase } from './SaveRatingUseCase';
+
+const mockRatingRepository = {
+  save: vi.fn(),
+};
+
+describe('SaveRatingUseCase', () => {
+  let useCase: SaveRatingUseCase;
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+    useCase = new SaveRatingUseCase({
+      ratingRepository: mockRatingRepository as any,
+    });
+  });
+
+  describe('Scenario 11: Repository error wraps correctly', () => {
+    it('should wrap repository error with specific prefix', async () => {
+      // Given
+      const request = {
+        driverId: 'd1',
+        raceId: 'r1',
+        rating: 1200,
+        components: {
+          resultsStrength: 80,
+          consistency: 70,
+          cleanDriving: 90,
+          racecraft: 75,
+          reliability: 85,
+          teamContribution: 60,
+        },
+      };
+
+      const repoError = new Error('Database connection failed');
+      mockRatingRepository.save.mockRejectedValue(repoError);
+
+      // When & Then
+      await expect(useCase.execute(request)).rejects.toThrow(
+        'Failed to save rating: Error: Database connection failed'
+      );
+    });
+  });
+});