13 lines
318 B
JavaScript
13 lines
318 B
JavaScript
const expect = require('expect');
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const {hz} = require('./_30s.js');
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test('hz is a Function', () => {
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expect(hz).toBeInstanceOf(Function);
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});
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test('hz returns a number', () => {
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expect(typeof hz(x => x)).toBe('number');
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});
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test('hz returns a number', () => {
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expect(typeof hz(x => x, 10)).toBe('number');
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});
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