test: migrate math/base/special/logit to ULP-based testing

[Planeshifter]

Resolves a part of #11352.

Description

What is the purpose of this pull request?

This pull request:

• migrates test/test.js and test/test.native.js for math/base/special/logit from relative-tolerance (EPS-based) assertions to ULP-difference assertions using @stdlib/assert/is-almost-same-value.
• uses the minimum required ULP values, verified by direct ULP-difference computation over the test fixtures: all three fixture blocks (small, medium, large; 500 cases each) have a computed maximum ULP difference of exactly 1 (29/38/29 cases sit at exactly 1 ULP, so a tolerance of 0 would fail).
• collapses the now-obsolete exact-equality short-circuit branches, as isAlmostSameValue covers exact equality.
• removes the now-unused EPS and abs requires and the delta/tol variable declarations.

The native (C) addon tests were run as well (not skipped) and pass with the same ULP values as the JavaScript implementation, so no JS-vs-C tolerance divergence annotations are needed.

Related Issues

Does this pull request have any related issues?

This pull request has the following related issues:

• [RFC]: Migrate math/base/special packages from relative tolerance testing to ULP difference testing (tracking issue) #11352

Questions

Any questions for reviewers of this pull request?

No.

Other

Any other information relevant to this pull request? This may include screenshots, references, and/or implementation notes.

No.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

AI Assistance

When authoring the changes proposed in this PR, did you use any kind of AI assistance?

• Yes
• No

If you answered "yes" above, how did you use AI assistance?

• Code generation (e.g., when writing an implementation or fixing a bug)
• Test/benchmark generation
• Documentation (including examples)
• Research and understanding

Disclosure

This PR was written by Claude Code, which performed the test migration, computed and verified the minimum required ULP tolerances against the test fixtures, and ran the JavaScript and native test suites. An independent adversarial verification pass (also Claude Code) recomputed the ULP values and reviewed the diff before opening this PR.

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@stdlib-js/reviewers

[stdlib-bot]

Hello! 👋

We've noticed that you've been opening a number of PRs addressing good first issues. Thank you for your interest and enthusiasm!

Now that you've made a few contributions, we suggest no longer working on good first issues. Instead, we encourage you to prioritize cleaning up any PRs which have yet to be merged and then proceed to work on more involved tasks.

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For ideas for future PRs, feel free to search the codebase for TODOs and FIXMEs and be sure to check out other open issues on the issue tracker. Cheers!

[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
math/base/special/logit	$\\color{green}191/191$ $\\color{green}+100.00\\%$	$\\color{green}13/13$ $\\color{green}+100.00\\%$	$\\color{green}2/2$ $\\color{green}+100.00\\%$	$\\color{green}191/191$ $\\color{green}+100.00\\%$

The above coverage report was generated for the changes in this PR.