ref_wrapper 0.2.2

Wrapper of dynamically borrowed data.
Documentation 
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mod common;

pub use common::*;
use core::cell::RefCell;
use core::ops::{Deref, DerefMut};
use drop_tracer::DropTracer;
use ref_wrapper::RefWrap;

#[test]
fn deref() {
    let src = RefCell::new(samples());
    let target = RefWrap::new(src.borrow(), |x| VecStat::new(x));

    let result = target.deref();

    assert_eq!(*result.base(), samples());
    assert_eq!(result.summary(), samples().iter().sum::<i32>());
    assert!(src.try_borrow().is_ok());
    assert!(src.try_borrow_mut().is_err());
}

#[test]
fn deref_mut() {
    let src = RefCell::new(samples());
    let mut target = RefWrap::new(src.borrow(), |x| VecStat::new(x));

    let result = target.deref_mut();

    result.more(42);
    assert_eq!(result.summary(), samples().iter().sum::<i32>() + 42);
    assert!(src.try_borrow().is_ok());
    assert!(src.try_borrow_mut().is_err());
}

#[test]
fn test_drop_count() {
    DropTracer::test_drop(|tracer| {
        let src = RefCell::new(tracer.new_item());
        RefWrap::new(src.borrow(), |_| "dummy");
    });
}