10 lines
263 B
JavaScript
10 lines
263 B
JavaScript
const expect = require('expect');
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const call = require('./call.js');
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test('call is a Function', () => {
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expect(call).toBeInstanceOf(Function);
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});
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test('Calls function on given object', () => {
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expect(call('map', x => x * 2)([1, 2, 3])).toBe([2, 4, 6]);
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});
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