10 lines
253 B
JavaScript
10 lines
253 B
JavaScript
const expect = require('expect');
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const {prefix} = require('./_30s.js');
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test('prefix is a Function', () => {
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expect(prefix).toBeInstanceOf(Function);
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});
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test('prefix is a Function', () => {
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expect(typeof prefix('appearance')).toBe('string');
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});
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