* 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
15 lines
672 B
JavaScript
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();
|
|
});
|