🔗 Testing Go CLIs with testscript

Have you ever wondered what happens when a command-line interface (CLI) is tested under real conditions? The article dives into the testing of the CLI eon, which schedules jobs using LLMs. It emphasizes the need for integration tests that mimic user behavior rather than relying solely on unit tests. The author shares a detailed exploration of using the testscript package to create robust tests that check command behavior while providing isolation from actual file systems and configurations.

By correctly setting up test scenarios, the eon CLI can add jobs, list them, and handle errors without affecting the user's actual environment. This methodology ensures that testing the CLI's performance and reliability is aligned with how users would typically interact with it. Through this approach, consumers of the eon CLI can have confidence in its functionality and robustness without the risk of disruptions from their local setups.