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Extend test_format_u8 to include u8::MAX

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This is equivalent to looping 0..=u8::MAX, except that `..=` syntax is
not supported on old rustc and `...` syntax is not supported on new
rustc, so loop it is.
This commit is contained in:
David Tolnay 2021-03-22 16:09:29 -07:00
parent 1bb23ad9d1
commit 72060b779a
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1 changed files with 9 additions and 2 deletions
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11
serde/src/ser/impls.rs
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@ -706,10 +706,17 @@ fn format_u8(mut n: u8, out: &mut [u8]) -> usize {
#[cfg(feature = "std")] #[cfg(feature = "std")]
#[test] #[test]
fn test_format_u8() { fn test_format_u8() {
for i in 0..(u8::MAX as u16) { let mut i = 0u8;
loop {
let mut buf = [0u8; 3]; let mut buf = [0u8; 3];
let written = format_u8(i as u8, &mut buf); let written = format_u8(i, &mut buf);
assert_eq!(i.to_string().as_bytes(), &buf[..written]); assert_eq!(i.to_string().as_bytes(), &buf[..written]);
match i.checked_add(1) {
Some(next) => i = next,
None => break,
}
} }
} }