egypt-banks-scraper/tests/banks.test.js

Scrape exchange rates from Egypt banks

import { expect } from 'chai';
import banks from '../src/banks';
import { getBrowser } from '../src/browser';

const {
  describe,
  it,
  beforeAll,
  afterAll,
} = global;

describe('Banks', async () => {
  let browser = null;
  // start browser
  beforeAll(async () => {
    browser = await getBrowser();
  }, process.env.timeout);

  // loop on each bank and test them
  banks.forEach((Bank) => {
    const bank = new Bank();
    describe(bank.name.acronym, () => {
      describe('Rates', async () => {
        let rates = null;

        // get bank rates before start testing
        beforeAll(async () => {
          rates = await bank.scrape(browser);
          console.log('Test ', bank.name.acronym);
        }, process.env.timeout);

        // test rates != null
        it('rates should not equal null', () => {
          expect(rates).to.not.equal(null);
        });

        // test rates not empty
        it('rates should not be empty', () => {
          expect(rates.length).to.not.equal(0);
        });

        // test rates codes are strings and have 3 letters
        it('code property in rates should be a string of 3 letters', () => {
          rates.forEach((currencyRate) => {
            expect(currencyRate.code).to.be.a('string');
            expect(currencyRate).to.have.property('code').with.lengthOf(3);
            // TODO check that code from currency iso list
          });
        });

        // test buy rates are numbers and are >= 0
        it('buy property in rates should be a positive number', () => {
          rates.forEach((currencyRate) => {
            expect(currencyRate.buy).to.be.a('number');
            expect(currencyRate.buy).to.be.at.least(0);
          });
        });

        // test sell rates are numbers and are >= 0
        it('sell property in rates should be a positive number', () => {
          rates.forEach((currencyRate) => {
            expect(currencyRate.sell).to.be.a('number');
            expect(currencyRate.buy).to.be.at.least(0);
          });
        });
      });
    });
  });

  // after finish all banks close browser
  afterAll(async () => {
    await browser.close();
  });
});