Sample Project

# - ./sample_project/Cargo.toml - 
[package]
name = "hello_add"
version = "0.1.0"
edition = "2021"

[dependencies]

[dev-dependencies]
criterion = "0.5"

[workspace]
exclude = ["fuzz"]

//  - sample_project/src/lib.rs - 
/// Простенька функція для прикладу
pub fn add(a: i32, b: i32) -> i32 {
    a + b
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_add() {
        assert_eq!(add(2, 2), 4);
    }

    #[test]
    #[should_panic]
    fn test_fail() {
        assert_eq!(add(2, 2), 5);
    }
}

//  - sample_project/tests/integration_test.rs - 
use hello_add::add;

#[test]
fn integration_add() {
    assert_eq!(add(10, 5), 15);
}

//  - sample_project/benches/test_bench.rs - 
use criterion::{black_box, criterion_group, criterion_main, Criterion};
use hello_add::add;

fn bench_addition(c: &mut Criterion) {
    c.bench_function("add two numbers", |b| {
        b.iter(|| add(black_box(2), black_box(2)))
    });
}

criterion_group!(benches, bench_addition);
criterion_main!(benches);

# - sample_project/fuzz/Cargo.toml - 
[package]
name = "hello_add-fuzz"
version = "0.0.1"
edition = "2021"
publish = false

[dependencies]
libfuzzer-sys = { version = "0.4", features = [
	"arbitrary-derive",
], default-features = false }

[dependencies.hello_add]
path = ".."

[[bin]]
name = "test_target"
path = "fuzz_targets/test_target.rs"
test = false
doc = false

[package.metadata]
cargo-fuzz = true

//  - sample_project/fuzz/fuzz_targets/test_target.rs - 
#![no_main]
use libfuzzer_sys::fuzz_target;
use hello_add::add;

fuzz_target!(|data: (i32, i32)| {
    let (a, b) = data;
    let _ = add(a, b);
});