83a6a6ea32
* 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
18 lines
571 B
JavaScript
18 lines
571 B
JavaScript
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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