functions.test.js

const find = require('./modules/find');
const payment = require('./modules/payment');
const calculatedayvalue = require('./modules/calculatedayvalue');

const find_testarray = [
    'RENE=MO10:00-12:00,TU10:00-12:00,TH01:00-03:00,SA14:00-18:00,SU20:00-21:00',
    'ASTRID=MO10:00-12:00,TH12:00-14:00,SU20:00-21:00'
];

const test_empfound_rene = ['MO10:00-12:00','TU10:00-12:00','TH01:00-03:00','SA14:00-18:00','SU20:00-21:00'];
const test_empfound_astrid = ['MO10:00-12:00','TH12:00-14:00','SU20:00-21:00','MO10:00-12:00','TH12:00-14:00','SU20:00-21:00'];
const test_day = ['SU20:00-21:00', 'TH12:00-14:00','MO08:00-10:00'];

//find test positive
test('find Rene on test_array expects specific array', () => {
  expect(find(find_testarray,'RENE')).toStrictEqual(test_empfound_rene);
});

//find test negative
test('try to find David on test_array expects false', () => {
    expect(find(find_testarray,'DAVID')).toBe(false);
  });

//test for the function calculateday values 
test('Calculates the amount to be paid on SU20:00-21:00 which is (25)', () => {
    expect(calculatedayvalue(test_day[0])).toBe(25);
});

//test for the function calculateday values 
test('Calculates the amount to be paid on TH12:00-14:00 which is (30)', () => {
    expect(calculatedayvalue(test_day[1])).toBe(30);
});

//test for the function calculateday values 
test('Calculates the amount to be paid on MO08:00-10:00 which is (39.75)', () => {
    expect(calculatedayvalue(test_day[2])).toBe(39.75);
});

//Show if the calculation of the aount to pay Rene is correct
test('calculates the paymet for Rene expects 215', () => {
    expect(payment(test_empfound_rene)).toBe(215);
});

//Show if the calculation of the aount to pay Astrid is correct based on a random number greater than what is expected
test('calculates the paymet for Astrid not expects other value than 170', () => {
    expect(payment(test_empfound_astrid)).not.toBe(Math.floor(Math.random()*10)+171);
});