Algorithms and Data Structures implemented in JavaScript for beginners, following best practices.
import { hexagonalNumber } from '../HexagonalNumber'
const expectedValuesArray = [
1, 6, 15, 28, 45, 66, 91, 120, 153, 190, 231, 276, 325, 378, 435, 496, 561,
630, 703, 780, 861, 946
]
describe('Testing hexagonalNumber', () => {
for (let i = 1; i <= 22; i++) {
it(
'Testing for number = ' + i + ', should return ' + expectedValuesArray[i],
() => {
expect(hexagonalNumber(i)).toBe(expectedValuesArray[i - 1])
}
)
it('should throw error when supplied negative numbers', () => {
expect(() => {
hexagonalNumber(-1)
}).toThrow(Error)
})
it('should throw error when supplied zero', () => {
hexagonalNumber(0)
