import { describe, it, expect } from 'vitest';
import { ok, err, isOk, isErr } from '@app/shared/models/result.model';

describe('Result model', () => {
  describe('ok', () => {
    it('should create a success result with data', () => {
      const data = { name: 'test' };

      const result = ok(data);

      expect(result.success).toBe(true);
      expect((result as { success: true; data: typeof data }).data).toEqual(data);
    });
  });

  describe('err', () => {
    it('should create an error result with error', () => {
      const error = new Error('fail');

      const result = err(error);

      expect(result.success).toBe(false);
      expect((result as { success: false; error: Error }).error).toEqual(error);
    });
  });

  describe('isOk', () => {
    it('should return true for success result', () => {
      const result = ok('value');

      const check = isOk(result);

      expect(check).toBe(true);
    });

    it('should return false for error result', () => {
      const result = err(new Error('fail'));

      const check = isOk(result);

      expect(check).toBe(false);
    });
  });

  describe('isErr', () => {
    it('should return true for error result', () => {
      const result = err(new Error('fail'));

      const check = isErr(result);

      expect(check).toBe(true);
    });

    it('should return false for success result', () => {
      const result = ok('value');

      const check = isErr(result);

      expect(check).toBe(false);
    });
  });
});