Files
30-seconds-of-code/test/randomNumberInRange.test.js
Christian C. Salvadó 83a6a6ea32 [ENHANCEMENT] Properly configure eslint to work with jest (#988)
* chore: make aware eslint that we use jest

By setting up the jest environment, we no longer need to declare the
'test' global in the configuration.

* chore: don't need to import expect, it's a jest environment global

* chore: don't need to import expect when creating undefined test
2019-06-18 08:34:45 +03:00

15 lines
672 B
JavaScript

const {randomNumberInRange} = require('./_30s.js');
test('randomNumberInRange is a Function', () => {
expect(randomNumberInRange).toBeInstanceOf(Function);
});
const lowerLimit = Math.floor(Math.random() * 20);
const upperLimit = Math.floor(lowerLimit + Math.random() * 10);
test('The returned value is a number', () => {
expect(typeof randomNumberInRange(lowerLimit, upperLimit) === 'number').toBeTruthy();
});
const numberForTest = randomNumberInRange(lowerLimit, upperLimit);
test('The returned value lies between provided lowerLimit and upperLimit (both inclusive).', () => {
expect(numberForTest >= lowerLimit && numberForTest <= upperLimit).toBeTruthy();
});