Function extend

arrow-buffer/src/builder/mod.rs:423–429

()

    #[test]
    fn extend() {
        let input = [1, 2];
        let mut builder = input.into_iter().collect::<BufferBuilder<_>>();
        assert_eq!(builder.len(), 2);
        builder.extend([3, 4]);
        assert_eq!(builder.len(), 4);
    }

    #[test]
    fn truncate_safety() {