Function pack_nil

tests/func/encode/value_ref.rs:6–14

()

#[test]
fn pack_nil() {
    let mut buf = [0x00];

    let val = ValueRef::Nil;

    write_value_ref(&mut &mut buf[..], &val).unwrap();

    assert_eq!([0xc0], buf);
}

#[test]
fn pack_nil_when_buffer_is_tool_small() {