10 lines
257 B
JavaScript
10 lines
257 B
JavaScript
const expect = require('expect');
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const {sum} = require('./_30s.js');
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test('sum is a Function', () => {
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expect(sum).toBeInstanceOf(Function);
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});
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test('Returns the sum of two or more numbers/arrays.', () => {
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expect(sum(...[1, 2, 3, 4])).toBe(10);
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});
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