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use super::Cursor;
use rmp::decode::*;
#[test]
fn pass() {
let buf = [0xc0];
let mut cur = Cursor::new(&buf[..]);
assert_eq!((), read_nil(&mut cur).unwrap());
assert_eq!(1, cur.position());
}
#[test]
fn fail_invalid_marker() {
let buf = [0xc1];
let mut cur = Cursor::new(&buf[..]);
match read_nil(&mut cur) {
Err(ValueReadError::TypeMismatch(..)) => (),
other => panic!("unexpected result: {other:?}"),
}
assert_eq!(1, cur.position());
}
#[test]
fn fail_unexpected_eof() {
let buf = [];
let mut cur = Cursor::new(&buf[..]);
read_nil(&mut cur).err().unwrap();
assert_eq!(0, cur.position());
}
#[test]
#[cfg(feature = "std")]
fn interrupt_safe() {
use std::io::{Error, ErrorKind, Read};
struct MockRead { state_: u8 }
impl MockRead {
fn state(&self) -> u8 { self.state_ }
}
impl Read for MockRead {
fn read(&mut self, buf: &mut [u8]) -> Result<usize, Error> {
if self.state_ == 0 {
self.state_ = 1;
Err(Error::new(ErrorKind::Interrupted, "interrupted"))
} else {
assert!(!buf.is_empty());
buf[0] = 0xc0;
Ok(1)
}
}
}
let mut cur = MockRead { state_: 0 };
// The function is interruption-safe, the first read should succeed.
read_nil(&mut cur).unwrap();
assert_eq!(1, cur.state());
}