Continuous test-driven development for Rust

Question

Ruby has Autotest, JavaScript has Wallabyjs, both run test and present the results automatically on every save.

Is there any Continuous test-driven development system available for rust?

Otherwise, what is the reason for the absence? Is there a technical reason, why such a system makes no sense with rust, or did simply no one care about writing one, yet?

Answer 1

You can use cargo-watch.

1. Install it by running $ cargo install cargo-watch
2. In your project directory run $ cargo watch (or $ cargo watch test to be specific)

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However, there are some differences to JS and Ruby: Rust is a compiled language and the compilation step takes some time. So you cannot expect immediate feedback, like you get from interpreted languages.