orphanage 0.5.6

Random collection of stuff that is still searching for a home.
Documentation 
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use orphanage::setops::{changes, HashSet};

#[test]
fn all() {
  let old: HashSet<u32> = [1, 2].into_iter().collect();
  let new: HashSet<u32> = [2, 3].into_iter().collect();

  let diff = changes(&old, &new);

  let mut added: Vec<u32> = diff.added.into_iter().copied().collect();
  added.sort_unstable();
  let mut removed: Vec<u32> = diff.removed.into_iter().copied().collect();
  removed.sort_unstable();
  let mut unchanged: Vec<u32> = diff.unchanged.into_iter().copied().collect();
  unchanged.sort_unstable();

  assert_eq!(&added, &[3]);
  assert_eq!(&removed, &[1]);
  assert_eq!(&unchanged, &[2]);
}

// vim: set ft=rust et sw=2 ts=2 sts=2 cinoptions=2 tw=79 :