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Fix constrained_fuzz_bounds() (#1490)

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... for cases where the entire fuzz range is above `maximum`.
Also improve hanling if the entire range is below `minimum` and
readability.
This commit is contained in:
RumovZ 2021-11-15 06:41:43 +01:00 committed by GitHub
parent 311e70822d
commit b1142c12d9
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 17 additions and 6 deletions
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14
rslib/src/scheduler/states/mod.rs
View File

@ -151,12 +151,18 @@ impl<'a> StateContext<'a> {
/// Ensure the upper bound is larger than the lower bound, if `maximum` allows
/// it and it is larger than 1.
fn constrained_fuzz_bounds(interval: f32, minimum: u32, maximum: u32) -> (u32, u32) {
let (lower, mut upper) = fuzz_bounds(interval);
let lower = lower.max(minimum);
if upper == lower && upper != 1 {
let (mut lower, mut upper) = fuzz_bounds(interval);
// minimum <= maximum and lower <= upper are assumed
// now ensure minimum <= lower <= upper <= maximum
lower = lower.max(minimum).min(maximum);
upper = upper.max(minimum).min(maximum);
if upper == lower && upper > 1 && upper < maximum {
upper = lower + 1;
};
(lower, upper.min(maximum).max(lower))
(lower, upper)
}
fn fuzz_bounds(interval: f32) -> (u32, u32) {

9
rslib/src/scheduler/states/review.rs
View File

@ -255,7 +255,7 @@ mod test {
}
#[test]
fn low_multiplier_fuzz() {
fn extreme_multiplier_fuzz() {
let mut ctx = StateContext::defaults_for_testing();
// our calculations should work correctly with a low ease or non-default multiplier
let state = ReviewState {
@ -272,6 +272,11 @@ mod test {
ctx.interval_multiplier = 0.1;
assert_eq!(state.passing_review_intervals(&ctx), (2, 3, 4));
ctx.fuzz_factor = Some(0.99);
assert_eq!(state.passing_review_intervals(&ctx), (2, 3, 4));
assert_eq!(state.passing_review_intervals(&ctx), (3, 5, 7));
// maximum must be respected no matter what
ctx.interval_multiplier = 10.0;
ctx.maximum_review_interval = 5;
assert_eq!(state.passing_review_intervals(&ctx), (5, 5, 5));
}
}