Vanilla Rust Command Line Project

This repository shows a basic setup for a command line application in Rust.

Getting Started

Rust is expected to be installed on your system.

Installing

After cloning this repository, change into the newly created directory and run

cargo build

This will download all dependencies needed for the project and build/compile it.

Running the Tests

All tests can be run by executing

cargo test

test will automatically run all tests found in the source modules.

Testing Approach

The test for function example::message is only verifying the return value of it.

Testing main::print_messaage on the other hand is done via a test-double that gets injected. This allows us to spy on the output it produces. We want to avoid printing anything to the screen while running the tests. Injecting a test double in this instance is a nice way to isolate our application from the command line.

Running the Application

To run the application we can run it with cargo: cargo run. You should see the text “Rust Example” being printed.

$: cargo run
   Compiling rust-command-line v0.1.0 (/home/vanilla/rust-command-line)
    Finished dev [unoptimized + debuginfo] target(s) in 1.90s
     Running `target/debug/rust-command-line`
Rust Example

Built With

• Rust

License

This project is licensed under the MIT License - see the license.md file for details.