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
404 B
JavaScript
12 lines
404 B
JavaScript
const {takeWhile} = require('./_30s.js');
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test('takeWhile is a Function', () => {
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expect(takeWhile).toBeInstanceOf(Function);
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});
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test('Removes elements until the function returns true', () => {
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expect(takeWhile([1, 2, 3, 4], n => n >= 3)).toEqual([1, 2]);
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});
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test('Removes elements until the function returns true', () => {
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expect(takeWhile([1, 2, 3, 4], n => false)).toEqual([1, 2, 3, 4]);
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});
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