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Mocha

Basic Setup​

Solution​

const add = (a, b) => a + b;
const add = (a, b) => a + b;

Tests​

const {assert, config, expect} = require("chai");  // don't truncate assertion diff output config.truncateThreshold = 0;  describe("add", () => {  it("should add two numbers", () => {  assert.strictEqual(add(1, 2), 3);   // ...or use expect assertions:  expect(add(1, 2)).to.equal(3);  }); });
const {assert, config, expect} = require("chai");  // don't truncate assertion diff output config.truncateThreshold = 0;  describe("add", () => {  it("should add two numbers", () => {  assert.strictEqual(add(1, 2), 3);   // ...or use expect assertions:  expect(add(1, 2)).to.equal(3);  }); });