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El caso de prueba falló en Jest con " expect(received).toBe(expected) // Object.is equal"

Traté de trabajar en pruebas básicas de Jest en JavaScript. Revisé el archivo docs y trabajé en consecuencia. Todo me parece bien, pero un caso de prueba simple no está pasando. Adjunté la captura de pantalla del problema junto con el código y el paquete.json. Captura de pantalla Captura de pantalla2

 const functions = { add: (num1, num2) => { num1 + num2; }, }; module.exports = functions; `//Testing ` const functions = require("./functions"); test("Add 2 + 2 equal 4", () => { expect(functions.add(2, 2)).toBe(4); }); Error expect(received).toBeCloseTo(expected) Matcher error: received value must be a number Received has value: undefined
about 4 years ago · Juan Pablo Isaza
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