use quickcheck::{Arbitrary, Gen};
use unsigned_varint::encode;
#[cfg(feature = "std")]
#[test]
fn read_arbitrary() {
use unsigned_varint::io;
fn property(n: RandomUvi) {
let mut r = std::io::Cursor::new(n.bytes());
match n {
RandomUvi::U8(n, _) => assert_eq!(n, io::read_u8(&mut r).unwrap()),
RandomUvi::U16(n, _) => assert_eq!(n, io::read_u16(&mut r).unwrap()),
RandomUvi::U32(n, _) => assert_eq!(n, io::read_u32(&mut r).unwrap()),
RandomUvi::U64(n, _) => assert_eq!(n, io::read_u64(&mut r).unwrap()),
RandomUvi::U128(n, _) => assert_eq!(n, io::read_u128(&mut r).unwrap()),
RandomUvi::Usize(n, _) => assert_eq!(n, io::read_usize(&mut r).unwrap())
}
}
quickcheck::quickcheck(property as fn(RandomUvi))
}
#[cfg(feature = "futures")]
#[test]
fn async_read_arbitrary() {
use unsigned_varint::aio;
fn property(n: RandomUvi) {
futures_executor::block_on(async move {
let mut r = futures_util::io::Cursor::new(n.bytes());
match n {
RandomUvi::U8(n, _) => assert_eq!(n, aio::read_u8(&mut r).await.unwrap()),
RandomUvi::U16(n, _) => assert_eq!(n, aio::read_u16(&mut r).await.unwrap()),
RandomUvi::U32(n, _) => assert_eq!(n, aio::read_u32(&mut r).await.unwrap()),
RandomUvi::U64(n, _) => assert_eq!(n, aio::read_u64(&mut r).await.unwrap()),
RandomUvi::U128(n, _) => assert_eq!(n, aio::read_u128(&mut r).await.unwrap()),
RandomUvi::Usize(n, _) => assert_eq!(n, aio::read_usize(&mut r).await.unwrap())
}
})
}
quickcheck::quickcheck(property as fn(RandomUvi))
}
#[cfg(feature = "nom")]
#[test]
fn nom_read_arbitrary() {
use unsigned_varint::nom;
fn property(n: RandomUvi) {
let input = n.bytes();
let empty = &[][..];
match n {
RandomUvi::U8(n, _) => assert_eq!((empty, n), nom::u8(input).unwrap()),
RandomUvi::U16(n, _) => assert_eq!((empty, n), nom::u16(input).unwrap()),
RandomUvi::U32(n, _) => assert_eq!((empty, n), nom::u32(input).unwrap()),
RandomUvi::U64(n, _) => assert_eq!((empty, n), nom::u64(input).unwrap()),
RandomUvi::U128(n, _) => assert_eq!((empty, n), nom::u128(input).unwrap()),
RandomUvi::Usize(n, _) => assert_eq!((empty, n), nom::usize(input).unwrap()),
}
}
quickcheck::quickcheck(property as fn(RandomUvi))
}
#[derive(Debug, Clone, PartialEq, Eq)]
enum RandomUvi {
U8(u8, Vec<u8>),
U16(u16, Vec<u8>),
U32(u32, Vec<u8>),
U64(u64, Vec<u8>),
U128(u128, Vec<u8>),
Usize(usize, Vec<u8>),
}
impl RandomUvi {
#[cfg(feature = "std")]
fn bytes(&self) -> &[u8] {
match self {
RandomUvi::U8(_, v) => v,
RandomUvi::U16(_, v) => v,
RandomUvi::U32(_, v) => v,
RandomUvi::U64(_, v) => v,
RandomUvi::U128(_, v) => v,
RandomUvi::Usize(_, v) => v
}
}
}
impl Arbitrary for RandomUvi {
fn arbitrary(g: &mut Gen) -> Self {
let n: u128 = Arbitrary::arbitrary(g);
match n % 6 {
0 => {
let mut b = encode::u8_buffer();
RandomUvi::U8(n as u8, Vec::from(encode::u8(n as u8, &mut b)))
}
1 => {
let mut b = encode::u16_buffer();
RandomUvi::U16(n as u16, Vec::from(encode::u16(n as u16, &mut b)))
}
2 => {
let mut b = encode::u32_buffer();
RandomUvi::U32(n as u32, Vec::from(encode::u32(n as u32, &mut b)))
}
3 => {
let mut b = encode::u64_buffer();
RandomUvi::U64(n as u64, Vec::from(encode::u64(n as u64, &mut b)))
}
4 => {
let mut b = encode::u128_buffer();
RandomUvi::U128(n, Vec::from(encode::u128(n, &mut b)))
}
_ => {
let mut b = encode::usize_buffer();
RandomUvi::Usize(n as usize, Vec::from(encode::usize(n as usize, &mut b)))
}
}
}
}