In this talk, we will explore the Node.js Test Runner, addressing the curious absence of a native testing framework in the JavaScript language. We will uncover the reasons that led Node.js, after 14 years since its inception, to develop a native test runner, despite the presence of several available libraries.

We will analyze the history of the Test Runner, identifying the problems it solves and the motivations that drove its creation. We will highlight the key differences between the test runner, testing framework, and assertion library, for a comprehensive understanding of their roles in the testing process.

We will delve into the features of the Node.js Test Runner, exploring its versatility in integrating with various test frameworks and the crucial role it plays in test automation and software efficiency.