league service

tests/application/GetTotalDriversUseCase.spec.ts

@@ -0,0 +1,33 @@
+import { describe, it, expect, beforeEach, vi } from 'vitest';
+import { GetTotalDriversUseCase } from '../../core/racing/application/use-cases/GetTotalDriversUseCase';
+import { IDriverRepository } from '../../core/racing/domain/repositories/IDriverRepository';
+import { DriverStatsPresenter } from '../../apps/api/src/modules/driver/presenters/DriverStatsPresenter';
+
+describe('GetTotalDriversUseCase', () => {
+  let useCase: GetTotalDriversUseCase;
+  let driverRepository: { findAll: any };
+
+  beforeEach(() => {
+    driverRepository = {
+      findAll: vi.fn(),
+    };
+    useCase = new GetTotalDriversUseCase(driverRepository as IDriverRepository);
+  });
+
+  it('should return total drivers count', async () => {
+    // Arrange
+    const mockDrivers = [
+      { id: '1', name: 'Driver 1' },
+      { id: '2', name: 'Driver 2' },
+    ];
+    driverRepository.findAll.mockResolvedValue(mockDrivers);
+    const presenter = new DriverStatsPresenter();
+
+    // Act
+    await useCase.execute(undefined, presenter);
+
+    // Assert
+    expect(driverRepository.findAll).toHaveBeenCalled();
+    expect(presenter.viewModel).toEqual({ totalDrivers: 2 });
+  });
+});