Mocha

Basic Setup

Solution

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

export default add;

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

export default add;

Tests

import {assert, config, expect} from "chai";
import add from "./solution";

// 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);
  });
});

import {assert, config, expect} from "chai";
import add from "./solution";

// 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);
  });
});