This article dives into how to write unit tests in Rust. The language offers a set of native assertions that allow us to run tests without external dependencies.
Introduction
In Rust, testing is integrated directly into the language, making it easy to verify code behavior without external frameworks. If you apply techniques like TDD, this allows you to keep your development cycle agile and quality-focused from the start.
To run a test in Rust, you simply mark a function as a test using the #[test] attribute. When you use this attribute, Rust knows that function should be executed when you run the cargo test command, which is the tool for managing tests in Rust.
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