std::io::cursor Added test for seeking beyond i64.
This commit is contained in:
parent
a797b6e2fe
commit
ab57e7b868
|
@ -526,6 +526,43 @@ mod tests {
|
|||
assert_eq!(r.write(&[3]).unwrap(), 0);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn seek_past_i64() {
|
||||
let buf = [0xff];
|
||||
let mut r = Cursor::new(&buf[..]);
|
||||
assert_eq!(r.seek(SeekFrom::Start(6)).unwrap(), 6);
|
||||
assert_eq!(r.seek(SeekFrom::Current(0x7ffffffffffffff0)).unwrap(), 0x7ffffffffffffff6);
|
||||
assert_eq!(r.seek(SeekFrom::Current(0x10)).unwrap(), 0x8000000000000006);
|
||||
assert_eq!(r.seek(SeekFrom::Current(0)).unwrap(), 0x8000000000000006);
|
||||
assert!(r.seek(SeekFrom::Current(0x7ffffffffffffffd)).is_err());
|
||||
assert_eq!(r.seek(SeekFrom::Current(-0x8000000000000000)).unwrap(), 6);
|
||||
|
||||
let mut r = Cursor::new(vec![10]);
|
||||
assert_eq!(r.seek(SeekFrom::Start(6)).unwrap(), 6);
|
||||
assert_eq!(r.seek(SeekFrom::Current(0x7ffffffffffffff0)).unwrap(), 0x7ffffffffffffff6);
|
||||
assert_eq!(r.seek(SeekFrom::Current(0x10)).unwrap(), 0x8000000000000006);
|
||||
assert_eq!(r.seek(SeekFrom::Current(0)).unwrap(), 0x8000000000000006);
|
||||
assert!(r.seek(SeekFrom::Current(0x7ffffffffffffffd)).is_err());
|
||||
assert_eq!(r.seek(SeekFrom::Current(-0x8000000000000000)).unwrap(), 6);
|
||||
|
||||
let mut buf = [0];
|
||||
let mut r = Cursor::new(&mut buf[..]);
|
||||
assert_eq!(r.seek(SeekFrom::Start(6)).unwrap(), 6);
|
||||
assert_eq!(r.seek(SeekFrom::Current(0x7ffffffffffffff0)).unwrap(), 0x7ffffffffffffff6);
|
||||
assert_eq!(r.seek(SeekFrom::Current(0x10)).unwrap(), 0x8000000000000006);
|
||||
assert_eq!(r.seek(SeekFrom::Current(0)).unwrap(), 0x8000000000000006);
|
||||
assert!(r.seek(SeekFrom::Current(0x7ffffffffffffffd)).is_err());
|
||||
assert_eq!(r.seek(SeekFrom::Current(-0x8000000000000000)).unwrap(), 6);
|
||||
|
||||
let mut r = Cursor::new(vec![10].into_boxed_slice());
|
||||
assert_eq!(r.seek(SeekFrom::Start(6)).unwrap(), 6);
|
||||
assert_eq!(r.seek(SeekFrom::Current(0x7ffffffffffffff0)).unwrap(), 0x7ffffffffffffff6);
|
||||
assert_eq!(r.seek(SeekFrom::Current(0x10)).unwrap(), 0x8000000000000006);
|
||||
assert_eq!(r.seek(SeekFrom::Current(0)).unwrap(), 0x8000000000000006);
|
||||
assert!(r.seek(SeekFrom::Current(0x7ffffffffffffffd)).is_err());
|
||||
assert_eq!(r.seek(SeekFrom::Current(-0x8000000000000000)).unwrap(), 6);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn seek_before_0() {
|
||||
let buf = [0xff];
|
||||
|
|
Loading…
Reference in New Issue