19 lines
605 B
JavaScript
19 lines
605 B
JavaScript
const expect = require('expect');
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const {nthElement} = require('./_30s.js');
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test('nthElement is a Function', () => {
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expect(nthElement).toBeInstanceOf(Function);
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});
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test('Returns the nth element of an array.', () => {
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expect(nthElement(['a', 'b', 'c'], 1)).toBe('b');
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});
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test('Returns the nth element of an array.', () => {
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expect(nthElement(['a', 'b', 'c'], -3)).toBe('a');
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});
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test('Returns the nth element of an array.', () => {
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expect(nthElement(['a', 'b', 'c'], -1)).toBe('c');
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});
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test('Returns the nth element of an array.', () => {
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expect(nthElement(['a', 'b', 'c'])).toBe('a');
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});
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