hashmapdiff

This library is intended to compute diff between two hashmaps to see which keys have been removed in lhs, and which ones have received new value in rhs.

Usage example

```rust use hashmapdiff::{hashmapdiff, HashMapDiff};

pub fn main() { let lhs = [("unchanged", 1), ("removed", 2), ("changed", 3)].into(); let rhs = [("unchanged", 1), ("changed", 5), ("added", 4)].into();

let received_diff = hash_map_diff(&lhs, &rhs);

let expected_diff = HashMapDiff {
    updated: [(&"changed", &5), (&"added", &4)].into(),
    removed: [(&"removed", &2)].into(),
};

assert_eq!(received_diff, expected_diff);

}

```

Building

cargo b

Testing

cargo t