Bun Testing

Use this skill when writing tests with Bun's built-in test runner, which provides Jest-compatible APIs with significantly faster execution.

Key Concepts

Test Runner Basics

Bun includes a built-in test runner that works out of the box:

import { test, expect, describe, beforeAll, afterAll } from "bun:test";

describe("Math operations", () => {
  test("addition", () => {
    expect(1 + 1).toBe(2);
  });

  test("subtraction", () => {