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Improve wording, correct -> tight.

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This commit is contained in:
Frank Steffahn 2021-08-13 14:41:50 +02:00
parent 4304686049
commit 3f0d04e97b
1 changed files with 6 additions and 6 deletions
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12
library/alloc/tests/slice.rs
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@ -1001,7 +1001,7 @@ fn test_split_iterators_size_hint() {
Lower,
Upper,
}
fn assert_precise_size_hints(mut it: impl Iterator, which: Bounds, context: impl fmt::Display) {
fn assert_tight_size_hints(mut it: impl Iterator, which: Bounds, ctx: impl fmt::Display) {
match which {
Bounds::Lower => {
let mut lower_bounds = vec![it.size_hint().0];
@ -1009,7 +1009,7 @@ fn test_split_iterators_size_hint() {
lower_bounds.push(it.size_hint().0);
}
let target: Vec<_> = (0..lower_bounds.len()).rev().collect();
assert_eq!(lower_bounds, target, "incorrect lower bounds: {}", context);
assert_eq!(lower_bounds, target, "lower bounds incorrect or not tight: {}", ctx);
}
Bounds::Upper => {
let mut upper_bounds = vec![it.size_hint().1];
@ -1017,7 +1017,7 @@ fn test_split_iterators_size_hint() {
upper_bounds.push(it.size_hint().1);
}
let target: Vec<_> = (0..upper_bounds.len()).map(Some).rev().collect();
assert_eq!(upper_bounds, target, "incorrect upper bounds: {}", context);
assert_eq!(upper_bounds, target, "upper bounds incorrect or not tight: {}", ctx);
}
}
}
@ -1028,13 +1028,13 @@ fn test_split_iterators_size_hint() {
// p: predicate, b: bound selection
for (p, b) in [
// with a predicate always returning false, the split*-iterators
// become maximally short, so the size_hint lower bounds are correct
// become maximally short, so the size_hint lower bounds are tight
((|_| false) as fn(&_) -> _, Bounds::Lower),
// with a predicate always returning true, the split*-iterators
// become maximally long, so the size_hint upper bounds are correct
// become maximally long, so the size_hint upper bounds are tight
((|_| true) as fn(&_) -> _, Bounds::Upper),
] {
use assert_precise_size_hints as a;
use assert_tight_size_hints as a;
use format_args as f;
a(v.split(p), b, "split");