matcher/src/modules/ad/tests/unit/infrastructure/input-datetime-transformer.spec.ts

import {
  PARAMS_PROVIDER,
  TIMEZONE_FINDER,
  TIME_CONVERTER,
} from '@modules/ad/ad.di-tokens';
import { Frequency } from '@modules/ad/core/application/ports/datetime-transformer.port';
import { DefaultParamsProviderPort } from '@modules/ad/core/application/ports/default-params-provider.port';
import { TimeConverterPort } from '@modules/ad/core/application/ports/time-converter.port';
import { TimezoneFinderPort } from '@modules/ad/core/application/ports/timezone-finder.port';
import { InputDateTimeTransformer } from '@modules/ad/infrastructure/input-datetime-transformer';
import { Test, TestingModule } from '@nestjs/testing';

const mockDefaultParamsProvider: DefaultParamsProviderPort = {
  getParams: () => {
    return {
      DEPARTURE_TIME_MARGIN: 900,
      DRIVER: false,
      SEATS_PROPOSED: 3,
      PASSENGER: true,
      SEATS_REQUESTED: 1,
      STRICT: false,
      DEFAULT_TIMEZONE: 'Europe/Paris',
    };
  },
};

const mockTimezoneFinder: TimezoneFinderPort = {
  timezones: jest.fn().mockImplementation(() => ['Europe/Paris']),
};

const mockTimeConverter: TimeConverterPort = {
  localStringTimeToUtcStringTime: jest
    .fn()
    .mockImplementationOnce(() => '00:15'),
  utcStringTimeToLocalStringTime: jest.fn(),
  localStringDateTimeToUtcDate: jest
    .fn()
    .mockImplementationOnce(() => new Date('2023-07-30T06:15:00.000Z'))
    .mockImplementationOnce(() => new Date('2023-07-20T08:15:00.000Z'))
    .mockImplementationOnce(() => new Date('2023-07-19T23:15:00.000Z'))
    .mockImplementationOnce(() => new Date('2023-07-19T23:15:00.000Z')),
  utcStringDateTimeToLocalIsoString: jest.fn(),
  utcUnixEpochDayFromTime: jest
    .fn()
    .mockImplementationOnce(() => 4)
    .mockImplementationOnce(() => 3)
    .mockImplementationOnce(() => 3)
    .mockImplementationOnce(() => 5)
    .mockImplementationOnce(() => 5),
  localUnixEpochDayFromTime: jest.fn(),
};

describe('Input Datetime Transformer', () => {
  let inputDatetimeTransformer: InputDateTimeTransformer;

  beforeAll(async () => {
    const module: TestingModule = await Test.createTestingModule({
      providers: [
        {
          provide: PARAMS_PROVIDER,
          useValue: mockDefaultParamsProvider,
        },
        {
          provide: TIMEZONE_FINDER,
          useValue: mockTimezoneFinder,
        },
        {
          provide: TIME_CONVERTER,
          useValue: mockTimeConverter,
        },
        InputDateTimeTransformer,
      ],
    }).compile();

    inputDatetimeTransformer = module.get<InputDateTimeTransformer>(
      InputDateTimeTransformer,
    );
  });

  it('should be defined', () => {
    expect(inputDatetimeTransformer).toBeDefined();
  });

  describe('fromDate', () => {
    it('should return fromDate as is if frequency is recurrent', () => {
      const transformedFromDate: string = inputDatetimeTransformer.fromDate(
        {
          date: '2023-07-30',
          time: '07:15',
          coordinates: {
            lon: 6.175,
            lat: 48.685,
          },
        },
        Frequency.RECURRENT,
      );
      expect(transformedFromDate).toBe('2023-07-30');
    });
    it('should return transformed fromDate if frequency is punctual and coordinates are those of Nancy', () => {
      const transformedFromDate: string = inputDatetimeTransformer.fromDate(
        {
          date: '2023-07-30',
          time: '07:15',
          coordinates: {
            lon: 6.175,
            lat: 48.685,
          },
        },
        Frequency.PUNCTUAL,
      );
      expect(transformedFromDate).toBe('2023-07-30');
    });
  });

  describe('toDate', () => {
    it('should return toDate as is if frequency is recurrent', () => {
      const transformedToDate: string = inputDatetimeTransformer.toDate(
        '2024-07-29',
        {
          date: '2023-07-20',
          time: '10:15',
          coordinates: {
            lon: 6.175,
            lat: 48.685,
          },
        },
        Frequency.RECURRENT,
      );
      expect(transformedToDate).toBe('2024-07-29');
    });
    it('should return transformed fromDate if frequency is punctual', () => {
      const transformedToDate: string = inputDatetimeTransformer.toDate(
        '2024-07-30',
        {
          date: '2023-07-20',
          time: '10:15',
          coordinates: {
            lon: 6.175,
            lat: 48.685,
          },
        },
        Frequency.PUNCTUAL,
      );
      expect(transformedToDate).toBe('2023-07-20');
    });
  });

  describe('day', () => {
    it('should not change day if frequency is recurrent and converted UTC time is on the same day', () => {
      const day: number = inputDatetimeTransformer.day(
        1,
        {
          date: '2023-07-24',
          time: '01:15',
          coordinates: {
            lon: 6.175,
            lat: 48.685,
          },
        },
        Frequency.RECURRENT,
      );
      expect(day).toBe(1);
    });
    it('should change day if frequency is recurrent and converted UTC time is on the previous day', () => {
      const day: number = inputDatetimeTransformer.day(
        1,
        {
          date: '2023-07-24',
          time: '00:15',
          coordinates: {
            lon: 6.175,
            lat: 48.685,
          },
        },
        Frequency.RECURRENT,
      );
      expect(day).toBe(0);
    });
    it('should change day if frequency is recurrent and converted UTC time is on the previous day and given day is sunday', () => {
      const day: number = inputDatetimeTransformer.day(
        0,
        {
          date: '2023-07-23',
          time: '00:15',
          coordinates: {
            lon: 6.175,
            lat: 48.685,
          },
        },
        Frequency.RECURRENT,
      );
      expect(day).toBe(6);
    });
    it('should change day if frequency is recurrent and converted UTC time is on the next day', () => {
      const day: number = inputDatetimeTransformer.day(
        1,
        {
          date: '2023-07-24',
          time: '23:15',
          coordinates: {
            lon: 30.82,
            lat: 49.37,
          },
        },
        Frequency.RECURRENT,
      );
      expect(day).toBe(2);
    });
    it('should change day if frequency is recurrent and converted UTC time is on the next day and given day is saturday(6)', () => {
      const day: number = inputDatetimeTransformer.day(
        6,
        {
          date: '2023-07-29',
          time: '23:15',
          coordinates: {
            lon: 30.82,
            lat: 49.37,
          },
        },
        Frequency.RECURRENT,
      );
      expect(day).toBe(0);
    });
    it('should return utc fromDate day if frequency is punctual', () => {
      const day: number = inputDatetimeTransformer.day(
        1,
        {
          date: '2023-07-20',
          time: '00:15',
          coordinates: {
            lon: 6.175,
            lat: 48.685,
          },
        },
        Frequency.PUNCTUAL,
      );
      expect(day).toBe(3);
    });
  });

  describe('time', () => {
    it('should transform given time to utc time if frequency is recurrent', () => {
      const time: string = inputDatetimeTransformer.time(
        {
          date: '2023-07-24',
          time: '01:15',
          coordinates: {
            lon: 6.175,
            lat: 48.685,
          },
        },
        Frequency.RECURRENT,
      );
      expect(time).toBe('00:15');
    });
    it('should return given time to utc time if frequency is punctual', () => {
      const time: string = inputDatetimeTransformer.time(
        {
          date: '2023-07-24',
          time: '01:15',
          coordinates: {
            lon: 6.175,
            lat: 48.685,
          },
        },
        Frequency.PUNCTUAL,
      );
      expect(time).toBe('23:15');
    });
  });
});