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
12 lines
261 B
JavaScript
12 lines
261 B
JavaScript
const {tail} = require('./_30s.js');
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test('tail is a Function', () => {
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expect(tail).toBeInstanceOf(Function);
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});
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test('Returns tail', () => {
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expect(tail([1, 2, 3])).toEqual([2, 3]);
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});
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test('Returns tail', () => {
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expect(tail([1])).toEqual([1]);
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});
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