const assert = require("chai").assert; const calculator = require("../calculator.js"); describe("Calculator Test", function () { describe("add() Test", function () { it("add(1,2) should return 3", function () { assert.equal(calculator.add(1, 2), 3); }); it("add('1','2') should return 3", function () { assert.equal(calculator.add("1", "2"), 3); }); }); });