forest-express/test/serializers/resource.test.js

Official package for all Forest Express Lianas

const ResourceSerializer = require('../../src/serializers/resource');
const Schemas = require('../../src/generators/schemas');
const carsSchema = require('../fixtures/cars-schema');

const FLATTEN_SEPARATOR = '@@@';

const Implementation = {
  getModelName: (model) => model.name,
  getLianaName: jest.fn().mockReturnValue('forest-express-mongoose'),
  getOrmVersion: jest.fn(),
  Flattener: {
    _isFieldFlattened: jest.fn((fieldName) => fieldName.includes(FLATTEN_SEPARATOR)),
    splitOnSeparator: jest.fn((fieldName) => fieldName.split(FLATTEN_SEPARATOR)),
  },
};

describe('serializers > resource', () => {
  Schemas.schemas = { cars: carsSchema };

  function getSerializer(records) {
    return new ResourceSerializer(
      Implementation,
      { name: 'cars' },
      records,
    );
  }

  describe('serializing flattened fields', () => {
    it('should serialize the flattened fields', async () => {
      const records = [
        {
          _id: '5fbfb0ee67e7953f9b8414bf',
          name: 'Zoey',
          engine: {
            identification: { manufacturer: 'Renault' },
            horsePower: '125cv',
          },
        }, {
          _id: '5f928f4f1eedcfbce937bbd0',
          name: 'Ibiza',
        }];

      const serialized = await getSerializer(records).perform();

      expect(serialized).toStrictEqual({
        data: [{
          attributes: {
            _id: '5fbfb0ee67e7953f9b8414bf',
            [`engine${FLATTEN_SEPARATOR}horsePower`]: '125cv',
            [`engine${FLATTEN_SEPARATOR}identification${FLATTEN_SEPARATOR}manufacturer`]: 'Renault',
            name: 'Zoey',
          },
          type: 'cars',
        }, {
          attributes: {
            _id: '5f928f4f1eedcfbce937bbd0',
            name: 'Ibiza',
          },
          type: 'cars',
        }],
      });
    });

    it('should serialize the fields with a nested model named "attributes"', async () => {
      const records = [
        {
          _id: '5fbfb0ee67e7953f9b8414bf',
          name: 'Zoey',
          attributes: {
            color: 'red',
            option: 'air conditioning',
          },
        }, {
          _id: '5f928f4f1eedcfbce937bbd0',
          name: 'Ibiza',
        }];

      const serialized = await getSerializer(records).perform();

      expect(serialized).toStrictEqual({
        data: [{
          attributes: {
            _id: '5fbfb0ee67e7953f9b8414bf',
            attributes: { color: 'red', option: 'air conditioning' },
            name: 'Zoey',
          },
          type: 'cars',
        }, {
          attributes: {
            _id: '5f928f4f1eedcfbce937bbd0',
            name: 'Ibiza',
          },
          type: 'cars',
        }],
      });
    });

    it('should not add attribute when their are undefined', async () => {
      const records = [
        {
          _id: '5fbfb0ee67e7953f9b8414bf',
          name: 'Zoey',
          engine: {
            identification: { manufacturer: null },
          },
        },
      ];

      const serialized = await getSerializer(records).perform();
      const carAttributes = serialized.data[0].attributes;

      expect(carAttributes).toContainKey(`engine${FLATTEN_SEPARATOR}identification${FLATTEN_SEPARATOR}manufacturer`);
      expect(carAttributes[`engine${FLATTEN_SEPARATOR}identification${FLATTEN_SEPARATOR}manufacturer`]).toBeNull();
      expect(carAttributes).not.toContainKey(`engine${FLATTEN_SEPARATOR}horsePower`);
    });
    it('should serialize points', async () => {
      const records = [
        {
          _id: '5fbfb0ee67e7953f9b8414bf',
          name: 'Zoey',
          coordinate: {
            type: 'Point',
            coordinates: [
              -71.060316,
              48.432044,
            ],
          },
        },
      ];

      const serialized = await getSerializer(records).perform();

      expect(serialized.data[0].attributes).toMatchObject({
        _id: expect.any(String),
        coordinate: [-71.060316, 48.432044],
        name: 'Zoey',
      });
    });
  });
});