dedup recip, powi, to_degrees, and to_radians float tests by karolzwolak · Pull Request #145468 · rust-lang/rust

karolzwolak · 2025-08-15T17:41:20Z

Deduplicates recip, powi, to_degrees, and to_radians float tests.
I had to fiddle and slightly increase the tolerances for a few comparisons, so maybe not all of the tests are worth deduplicating.

Part of #141726.
Best reviewed commit-by-commit.

r? @tgross35

library/coretests/tests/floats/mod.rs

karolzwolak · 2025-08-19T19:02:09Z

update: simplify and minimize thresholds for assert_approx_ex comparisons.

karolzwolak · 2025-08-19T19:55:44Z

update:

increase f16 APPROX theshold to 2e-3
use more precise values in tests to fix failures in CI

tgross35

One small request then LGTM

View changes since this review

library/coretests/tests/floats/mod.rs

I left the additional asserts on {f16, f128}::MAX.recip() in a new test_max_recip tests.

karolzwolak · 2025-08-30T13:02:43Z

@rustbot ready

tgross35 · 2025-08-30T19:46:52Z

Thank you!

@bors r+ rollup

bors · 2025-08-30T19:46:55Z

📌 Commit ddb15c2 has been approved by tgross35

It is now in the queue for this repository.

dedup recip, powi, to_degrees, and to_radians float tests Deduplicates recip, powi, to_degrees, and to_radians float tests. I had to fiddle and slightly increase the tolerances for a few comparisons, so maybe not all of the tests are worth deduplicating. Part of #141726. Best reviewed commit-by-commit. r? `@tgross35`

bors · 2025-08-30T22:12:08Z

⌛ Testing commit ddb15c2 with merge 87955a2...

dedup recip, powi, to_degrees, and to_radians float tests try-job: x86_64-gnu-aux

rust-bors · 2025-08-31T13:44:41Z

💔 Test for eee819c failed: CI. Failed jobs:

try - x86_64-gnu-aux (web logs, extended logs)

karolzwolak · 2025-08-31T16:31:55Z

I also missed the

rust/library/coretests/tests/floats/f32.rs

Lines 12 to 15 in 564ee21

    
           /// Miri adds some extra errors to float functions; make sure the tests still pass. 
        
           /// These values are purely used as a canary to test against and are thus not a stable guarantee Rust provides. 
        
           /// They serve as a way to get an idea of the real precision of floating point operations on different platforms. 
        
           const APPROX_DELTA: f32 = if cfg!(miri) { 1e-4 } else { 1e-6 };

in

rust/library/coretests/tests/floats/f32.rs

Line 55 in 564ee21

assert_approx_eq!((-3.1f32).powi(2), 9.61, APPROX_DELTA);

@tgross35 Could you re-run the try job? I don't have the privileges.

tgross35 · 2025-08-31T18:41:58Z

@bors2 try jobs=x86_64-gnu-aux

dedup recip, powi, to_degrees, and to_radians float tests try-job: x86_64-gnu-aux

rust-bors · 2025-08-31T20:34:24Z

☀️ Try build successful (CI)
Build commit: 4539ffa (4539ffa0b42be19574e5181628bbbc3e00adcd65, parent: 564ee219127b796d56f74767366fd359758b97de)

tgross35 · 2025-08-31T20:48:26Z

Going to run once more because I think the earlier failures came from Miri's randomness
@bors2 try jobs=x86_64-gnu-aux

dedup recip, powi, to_degrees, and to_radians float tests try-job: x86_64-gnu-aux

rust-bors · 2025-08-31T22:44:57Z

☀️ Try build successful (CI)
Build commit: 878adfd (878adfdad5d4813464596c61503f5817e19d8eb2, parent: f73bcd50a433b7c17225ca98b44064236e7e84b3)

tgross35 · 2025-09-01T07:01:26Z

@bors r+

bors · 2025-09-01T07:01:29Z

📌 Commit 9028efc has been approved by tgross35

It is now in the queue for this repository.

Rollup of 5 pull requests Successful merges: - #145468 (dedup recip, powi, to_degrees, and to_radians float tests) - #145643 (coverage: Build an "expansion tree" and use it to unexpand raw spans) - #145754 (fix(lexer): Don't require frontmatters to be escaped with indented fences) - #146060 (fixup nix dev shell again) - #146068 (compiletest: Capture panic messages via a custom panic hook) r? `@ghost` `@rustbot` modify labels: rollup

Rollup merge of #145468 - karolzwolak:float-tests-dedup, r=tgross35 dedup recip, powi, to_degrees, and to_radians float tests Deduplicates recip, powi, to_degrees, and to_radians float tests. I had to fiddle and slightly increase the tolerances for a few comparisons, so maybe not all of the tests are worth deduplicating. Part of #141726. Best reviewed commit-by-commit. r? `@tgross35`

…gross35 dedup recip, powi, to_degrees, and to_radians float tests Deduplicates recip, powi, to_degrees, and to_radians float tests. I had to fiddle and slightly increase the tolerances for a few comparisons, so maybe not all of the tests are worth deduplicating. Part of rust-lang#141726. Best reviewed commit-by-commit. r? `@tgross35`

Rollup of 5 pull requests Successful merges: - rust-lang#145468 (dedup recip, powi, to_degrees, and to_radians float tests) - rust-lang#145643 (coverage: Build an "expansion tree" and use it to unexpand raw spans) - rust-lang#145754 (fix(lexer): Don't require frontmatters to be escaped with indented fences) - rust-lang#146060 (fixup nix dev shell again) - rust-lang#146068 (compiletest: Capture panic messages via a custom panic hook) r? `@ghost` `@rustbot` modify labels: rollup

Rollup of 5 pull requests Successful merges: - rust-lang/rust#145468 (dedup recip, powi, to_degrees, and to_radians float tests) - rust-lang/rust#145643 (coverage: Build an "expansion tree" and use it to unexpand raw spans) - rust-lang/rust#145754 (fix(lexer): Don't require frontmatters to be escaped with indented fences) - rust-lang/rust#146060 (fixup nix dev shell again) - rust-lang/rust#146068 (compiletest: Capture panic messages via a custom panic hook) r? `@ghost` `@rustbot` modify labels: rollup

rustbot assigned tgross35 Aug 15, 2025

rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. T-libs Relevant to the library team, which will review and decide on the PR/issue. labels Aug 15, 2025

karolzwolak force-pushed the float-tests-dedup branch from b720664 to e5fed16 Compare August 15, 2025 17:46

tgross35 requested changes Aug 19, 2025

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karolzwolak force-pushed the float-tests-dedup branch from e5fed16 to 43b54cd Compare August 19, 2025 18:59

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karolzwolak force-pushed the float-tests-dedup branch from 43b54cd to 75c9ee4 Compare August 19, 2025 19:54

karolzwolak requested a review from tgross35 August 20, 2025 17:41

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dedup recip float test

6ebd009

I left the additional asserts on {f16, f128}::MAX.recip() in a new test_max_recip tests.

karolzwolak force-pushed the float-tests-dedup branch from 75c9ee4 to ddb15c2 Compare August 30, 2025 13:01

rustbot added S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Aug 30, 2025

tgross35 approved these changes Aug 30, 2025

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bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Aug 30, 2025

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Auto merge of #145468 - karolzwolak:float-tests-dedup, r=<try>

eee819c

dedup recip, powi, to_degrees, and to_radians float tests try-job: x86_64-gnu-aux

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karolzwolak added 3 commits August 31, 2025 18:16

dedup powi float test

e10e6d7

dedup to_degrees float test

c81a8a8

dedup to_radians float test

9028efc

karolzwolak force-pushed the float-tests-dedup branch from 8082354 to 9028efc Compare August 31, 2025 16:24

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rust-bors bot added a commit that referenced this pull request Aug 31, 2025

Auto merge of #145468 - karolzwolak:float-tests-dedup, r=<try>

4539ffa

dedup recip, powi, to_degrees, and to_radians float tests try-job: x86_64-gnu-aux

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rust-bors bot added a commit that referenced this pull request Aug 31, 2025

Auto merge of #145468 - karolzwolak:float-tests-dedup, r=<try>

878adfd

dedup recip, powi, to_degrees, and to_radians float tests try-job: x86_64-gnu-aux

bors added S-waiting-on-bors Status: Waiting on bors to run and complete tests. Bors will change the label on completion. and removed S-waiting-on-review Status: Awaiting review from the assignee but also interested parties. labels Sep 1, 2025

Zalathar mentioned this pull request Sep 1, 2025

Rollup of 5 pull requests #146077

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bors merged commit 1d520e2 into rust-lang:master Sep 1, 2025
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rustbot added this to the 1.91.0 milestone Sep 1, 2025

github-actions bot mentioned this pull request Sep 5, 2025

Toolchain upgrade to nightly-2025-09-09 flux-rs/flux#1260

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