/**
 * {{pascalCase featureName}} service tests
 */

import { {{pascalCase featureName}}Service } from '../logic/services/{{pascalCase featureName}}Service';
import { Create{{pascalCase featureName}}Input } from '../data/models/{{pascalCase featureName}}';

describe('{{pascalCase featureName}}Service', () => {
  let service: {{pascalCase featureName}}Service;
  
  beforeEach(() => {
    service = new {{pascalCase featureName}}Service();
  });
  
  describe('create', () => {
    it('should create a new item', async () => {
      const input: Create{{pascalCase featureName}}Input = {
        title: 'Test Item',
        description: 'Test Description'
      };
      
      const result = await service.create(input);
      
      expect(result).toMatchObject({
        id: expect.any(String),
        title: input.title,
        description: input.description,
        createdAt: expect.any(Date),
        updatedAt: expect.any(Date)
      });
    });
  });
  
  describe('findAll', () => {
    it('should return all items', async () => {
      const item1 = await service.create({ title: 'Item 1' });
      const item2 = await service.create({ title: 'Item 2' });
      
      const result = await service.findAll();
      
      expect(result).toHaveLength(2);
      expect(result).toContainEqual(item1);
      expect(result).toContainEqual(item2);
    });
  });
  
  describe('findById', () => {
    it('should find item by id', async () => {
      const item = await service.create({ title: 'Test Item' });
      
      const result = await service.findById(item.id);
      
      expect(result).toEqual(item);
    });
    
    it('should return null for non-existent id', async () => {
      const result = await service.findById('non-existent');
      
      expect(result).toBeNull();
    });
  });
  
  describe('update', () => {
    it('should update existing item', async () => {
      const item = await service.create({ title: 'Original Title' });
      
      const updated = await service.update(item.id, { title: 'Updated Title' });
      
      expect(updated).toMatchObject({
        id: item.id,
        title: 'Updated Title',
        updatedAt: expect.any(Date)
      });
      expect(updated?.updatedAt).not.toEqual(item.updatedAt);
    });
    
    it('should return null for non-existent id', async () => {
      const result = await service.update('non-existent', { title: 'Test' });
      
      expect(result).toBeNull();
    });
  });
  
  describe('delete', () => {
    it('should delete existing item', async () => {
      const item = await service.create({ title: 'To Delete' });
      
      const result = await service.delete(item.id);
      
      expect(result).toBe(true);
      
      const found = await service.findById(item.id);
      expect(found).toBeNull();
    });
    
    it('should return false for non-existent id', async () => {
      const result = await service.delete('non-existent');
      
      expect(result).toBe(false);
    });
  });
});