22 lines
824 B
JavaScript
22 lines
824 B
JavaScript
const expect = require('expect');
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const randomIntArrayInRange = require('./randomIntArrayInRange.js');
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test('randomIntArrayInRange is a Function', () => {
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expect(randomIntArrayInRange).toBeInstanceOf(Function);
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});
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const lowerLimit = Math.floor(Math.random() * 20);
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const upperLimit = Math.floor(lowerLimit + Math.random() * 10);
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const arr = randomIntArrayInRange(lowerLimit,upperLimit, 10);
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test('The returned array contains only integers', () => {
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expect(arr.every(x => typeof x === 'number')).toBeTruthy();
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});
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test('The returned array has the proper length', () => {
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expect(arr.length, 10).toBe()
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});
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test('The returned array\'s values lie between provided lowerLimit and upperLimit (both inclusive).', () => {
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expect(arr.every(x => (x >= lowerLimit) && (x <= upperLimit))).toBeTruthy();
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});
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