test: add tests for IEEE 754-2019 compliance

[anandkaranubc]

Progresses #365

Description

What is the purpose of this pull request?

This pull request:

• Add tests for checking that sinpi is an odd function

Related Issues

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This pull request:

• progresses Add tests for IEEE 754-2019 compliance #365

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• Read, understood, and followed the contributing guidelines.

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[stdlib-bot]

Coverage Report

Package	Statements	Branches	Functions	Lines
math/base/special/sinpi	$210/210$ $+100.00\mathrm{\%}$	$20/20$ $+100.00\mathrm{\%}$	$2/2$ $+100.00\mathrm{\%}$	$210/210$ $+100.00\mathrm{\%}$

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

[anandkaranubc]

Should I also test the odd behaviour on NaN input? If yes, should it be in a different tape function? And what would its description be?

[kgryte]

LGTM

[kgryte]

@anandkaranubc Sorry, just saw your question. I think you've covered the NaN scenario in the odd function test block. I'd be very surprised if we treated NaN scenarios any differently. They use the language "same number or NaN" because there are many possible NaNs, so saying the "same" NaN doesn't make sense as it would be overly prescriptive.