fluent-iterable 1.0.1

Fluent extension trait for std Iterator, port of @codibre/fluent-iterable vocabulary: joins, grouping, distinctness, cardinality checks
Documentation 
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// Tests for the sorting family (spliced into `lib.rs`'s test module).

    #[test]
    fn sort_family_is_stable() {
        let rows = [("b", 1), ("a", 2), ("b", 3), ("a", 1)];
        let by_value = rows.into_iter().sort_by(|(_, v)| *v);
        // ties (value 1 then 2..): encounter order preserved
        assert_eq!(by_value, vec![("b", 1), ("a", 1), ("a", 2), ("b", 3)]);
        let desc = rows.into_iter().sort_by_desc(|(_, v)| *v);
        assert_eq!(desc, vec![("b", 3), ("a", 2), ("b", 1), ("a", 1)]);
        let asc: Vec<u8> = [3u8, 1, 2].into_iter().sorted();
        assert_eq!(asc, vec![1, 2, 3]);
        let custom: Vec<i32> = [1, 2, 3].into_iter().sort_with(|a, b| b.cmp(a));
        assert_eq!(custom, vec![3, 2, 1]);
    }