Files
gridpilot.gg/core/racing/application/use-cases/GetTotalDriversUseCase.test.ts
2025-12-21 00:43:42 +01:00

71 lines
2.1 KiB
TypeScript

import { describe, it, expect, beforeEach, vi, Mock } from 'vitest';
import {
GetTotalDriversUseCase,
GetTotalDriversInput,
GetTotalDriversResult,
GetTotalDriversErrorCode,
} from './GetTotalDriversUseCase';
import { IDriverRepository } from '../../domain/repositories/IDriverRepository';
import type { UseCaseOutputPort } from '@core/shared/application';
import type { ApplicationErrorCode } from '@core/shared/errors/ApplicationErrorCode';
describe('GetTotalDriversUseCase', () => {
let useCase: GetTotalDriversUseCase;
let driverRepository: {
findAll: Mock;
};
let output: UseCaseOutputPort<GetTotalDriversResult> & { present: Mock };
beforeEach(() => {
driverRepository = {
findAll: vi.fn(),
};
output = {
present: vi.fn(),
} as unknown as UseCaseOutputPort<GetTotalDriversResult> & { present: Mock };
useCase = new GetTotalDriversUseCase(
driverRepository as unknown as IDriverRepository,
output,
);
});
it('should return total number of drivers', async () => {
const drivers = [{ id: '1' }, { id: '2' }];
driverRepository.findAll.mockResolvedValue(drivers);
const input: GetTotalDriversInput = {};
const result = await useCase.execute(input);
expect(result.isOk()).toBe(true);
expect(result.unwrap()).toBeUndefined();
expect(output.present).toHaveBeenCalledTimes(1);
expect(output.present).toHaveBeenCalledWith<[{ totalDrivers: number }]>(
expect.objectContaining({ totalDrivers: 2 }),
);
});
it('should return error on repository failure', async () => {
const error = new Error('Repository error');
driverRepository.findAll.mockRejectedValue(error);
const input: GetTotalDriversInput = {};
const result = await useCase.execute(input);
expect(result.isErr()).toBe(true);
const unwrappedError = result.unwrapErr() as ApplicationErrorCode<
GetTotalDriversErrorCode,
{ message: string }
>;
expect(unwrappedError.code).toBe('REPOSITORY_ERROR');
expect(unwrappedError.details.message).toBe(error.message);
expect(output.present).not.toHaveBeenCalled();
});
});