test: migrate simulate/iter/hann-pulse to ULP-based assertions

[kgryte]

Resolves a part of #11352.

Description

What is the purpose of this pull request?

This pull request:

• Migrates simulate/iter/hann-pulse's test/test.js from relative-tolerance (EPS-based) floating-point assertions to ULP-based assertions using @stdlib/assert/is-almost-same-value.
• Removes the manual delta/tol computations, along with the surrounding if ( actual.value === expected[ i ].value ) { ... } else { ... } guard, in favor of a single t.strictEqual( isAlmostSameValue( actual.value, expected[ i ].value, N ), true, 'returns expected value' ), mirroring the idiom used in previously merged conversions for sibling packages in the same family (e.g., simulate/iter/bartlett-hann-pulse, simulate/iter/flat-top-pulse, simulate/iter/sawtooth-wave).
• Drops the now-unused abs and EPS requires, and adds the @stdlib/assert/is-almost-same-value require in the same position used by the already-converted sibling packages.
• Uses the minimum required ULP value for each test block: all 9 converted fixture loops use 0 ULPs.

Measured minimum

The bounds were not guessed. Each assertion site was instrumented to record the actual @stdlib/number/float64/base/ulp-difference between the returned and expected value across every iteration, together with whether every pair was bit-identical under is-same-value:

BLOCK 0 maxulp=0 allexact=true
BLOCK 1 maxulp=0 allexact=true
BLOCK 2 maxulp=0 allexact=true
BLOCK 3 maxulp=0 allexact=true
BLOCK 4 maxulp=0 allexact=true
BLOCK 5 maxulp=0 allexact=true
BLOCK 6 maxulp=0 allexact=true
BLOCK 7 maxulp=0 allexact=true
BLOCK 8 maxulp=0 allexact=true

Every comparison is exactly bit-identical, so 0 is the tightest attainable bound for all 9 sites (isAlmostSameValue dispatches to isSameValue when maxULP === 0, which also distinguishes -0 from +0, so this is the strictest form of the assertion and cannot be lowered further). This matches the bound used by the already-converted sibling packages in this family.

The suite was run twice at the final bounds with identical, fully passing results, confirming there is no FMA/arch-dependent variation.

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.

Verified via:

make test TESTS_FILTER=".*/simulate/iter/hann-pulse/.*"

3281/3281 assertions pass, both before and after the change — the assertion count is unchanged, since the previous if/else guard contributed exactly one assertion per iteration, as does the new single assertion.

eslint run against the changed file using etc/eslint/.eslintrc.tests.js reports no issues. Only test/test.js was changed; this package has no test.native.js.

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 (an autonomous coding agent), which searched for a qualifying candidate package, studied prior merged conversions for the same idiom (preferring sibling packages in the same family), performed the migration, and empirically determined the minimum ULP bounds described above by measuring actual ULP differences and confirming determinism through repeated test runs.

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@stdlib-js/reviewers

🤖 Generated with Claude Code

https://claude.ai/code/session_01VEteurLjXqZToc9rcqJLbv

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Generated by Claude Code

[stdlib-bot]

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[Planeshifter]

/stdlib merge

[Planeshifter]

LGTM