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