hello_exercism

develop the crate

Step 1: create the default crate

mkdir lib-hello && cd lib-hello
# this is Crate Root Path
cargo init --name hello_exercism --lib

Step 2: develop the crate source and test codes

• Go to Crate Root Path

vi Cargo.toml
vi src/lib.rs
mkdir tests
touch tests/hello.rs
vi tests/hello.rs
cargo test

Step 3: develop the example codes

• Go to Crate Root Path

mkdir examples
touch examples/hello.rs
vi examples/hello.rs
cargo run --example hello

use the crate 'hello_exercism'

Step 1: configure the file Cargo.toml

• Go to Bin Root Path

echo 'hello_exercism = "0.1.6"' >> Cargo.toml

Step 2: edit the rust file main.rs

• Go to Bin Root Path

// vi src/main.rs
use hello_exercism;

fn main () {
    println!("{}",hello_exercism::hello());
    assert_eq!("Hello, World!", hello_exercism::hello());
}

Step 3: run the Bin program

• Go to Bin Root Path

cargo run main