2 #![allow(unused_variables)]
3 use std::collections::BinaryHeap;
4 use std::iter::Iterator;
10 let mut tester = BinaryHeap::with_capacity(len);
11 assert_eq!(tester.len(), 0);
12 assert!(tester.capacity() >= len);
16 assert_eq!(tester.len(), len);
17 assert_eq!(tester.iter().count(), len);