From c7d67c227ada825ef6e7f871ce55389b018b623e Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Sat, 17 Oct 2026 22:12:17 +0000
Subject: [PATCH] test: migrate `math/base/tools/sum-series` to ULP-based
 assertions

Replace the `abs( actual - expected ) < EPS` tolerance assertions with
`@stdlib/assert/is-almost-same-value`, using the minimum required ULP
values: 3 for the series sums and 0 (bit-exact) for the results computed
with a specified initial value.

Additionally, update the `eslint-disable` directive in the generator test
to silence `n/no-unsupported-features/es-syntax` and to drop the unused
`require-jsdoc` entry, mirroring the `math/base/tools/continued-fraction`
migration and keeping the file lint-clean.

Ref: https://github.com/stdlib-js/stdlib/issues/11352

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018w6owRroGP96wR2GYsQN6T
---
 .../tools/sum-series/test/es2015-generator/index.js   |  7 +++----
 .../@stdlib/math/base/tools/sum-series/test/test.js   | 11 +++++------
 2 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/lib/node_modules/@stdlib/math/base/tools/sum-series/test/es2015-generator/index.js b/lib/node_modules/@stdlib/math/base/tools/sum-series/test/es2015-generator/index.js
index ddf874128f0d..8e6e6f2f3c21 100644
--- a/lib/node_modules/@stdlib/math/base/tools/sum-series/test/es2015-generator/index.js
+++ b/lib/node_modules/@stdlib/math/base/tools/sum-series/test/es2015-generator/index.js
@@ -21,9 +21,8 @@
 // MODULES //
 
 var tape = require( 'tape' );
-var abs = require( '@stdlib/math/base/special/abs' );
+var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
 var log1p = require( '@stdlib/math/base/special/log1p' );
-var EPS = require( '@stdlib/constants/float64/eps' );
 var sumSeries = require( './../../lib' );
 
 
@@ -33,10 +32,10 @@ tape( 'the function calculates the sum of an infinite series provided by a gener
 	var expected = log1p( 0.5 );
 	var actual = sumSeries( generator( 0.5 ) );
 
-	t.ok( abs( actual - expected ) < EPS, 'returned result is within tolerance. actual: ' + actual + '; expected: ' + expected + '.' );
+	t.strictEqual( isAlmostSameValue( actual, expected, 3 ), true, 'returns expected value' );
 	t.end();
 
-	/* eslint-disable no-restricted-syntax, no-plusplus, require-jsdoc */
+	/* eslint-disable no-restricted-syntax, no-plusplus, n/no-unsupported-features/es-syntax */
 	function* generator( x ) {
 		var mMult = -x;
 		var mProd = -1;
diff --git a/lib/node_modules/@stdlib/math/base/tools/sum-series/test/test.js b/lib/node_modules/@stdlib/math/base/tools/sum-series/test/test.js
index 18032d420625..70a672175a20 100644
--- a/lib/node_modules/@stdlib/math/base/tools/sum-series/test/test.js
+++ b/lib/node_modules/@stdlib/math/base/tools/sum-series/test/test.js
@@ -23,9 +23,8 @@
 var tape = require( 'tape' );
 var proxyquire = require( 'proxyquire' );
 var detectGeneratorSupport = require( '@stdlib/assert/has-generator-support' );
+var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
 var log1p = require( '@stdlib/math/base/special/log1p' );
-var abs = require( '@stdlib/math/base/special/abs' );
-var EPS = require( '@stdlib/constants/float64/eps' );
 var sumSeries = require( './../lib' );
 var sumSeriesBasic = proxyquire( './../lib', {
 	'detect-generator-support': function getFalse() { return false; }
@@ -55,7 +54,7 @@ tape( 'the function calculates the sum of an infinite series provided by a closu
 	var expected = log1p( 0.5 );
 	var actual = sumSeries( closure( 0.5 ) );
 
-	t.ok( abs( actual - expected ) < EPS, 'returned result is within tolerance. actual: ' + actual + '; expected: ' + expected + '.' );
+	t.strictEqual( isAlmostSameValue( actual, expected, 3 ), true, 'returns expected value' );
 	t.end();
 
 	function closure( x ) {
@@ -75,7 +74,7 @@ tape( 'the function calculates the sum of an infinite series provided by a closu
 	var expected = log1p( 0.5 );
 	var actual = sumSeriesBasic( closure( 0.5 ) );
 
-	t.ok( abs( actual - expected ) < EPS, 'returned result is within tolerance. actual: ' + actual + '; expected: ' + expected + '.' );
+	t.strictEqual( isAlmostSameValue( actual, expected, 3 ), true, 'returns expected value' );
 	t.end();
 
 	function closure( x ) {
@@ -96,7 +95,7 @@ tape( 'the function calculates the sum of an infinite series with a specified in
 		'initialValue': 2
 	});
 
-	t.ok( abs( actual - expected ) < EPS, 'returned result is within tolerance. actual: ' + actual + '; expected: ' + expected + '.' );
+	t.strictEqual( isAlmostSameValue( actual, expected, 0 ), true, 'returns expected value' );
 	t.end();
 
 	function closure( x ) {
@@ -118,7 +117,7 @@ tape( 'the function calculates the sum of an infinite series with a specified in
 		'initialValue': 2
 	});
 
-	t.ok( abs( actual - expected ) < EPS, 'returned result is within tolerance. actual: ' + actual + '; expected: ' + expected + '.' );
+	t.strictEqual( isAlmostSameValue( actual, expected, 0 ), true, 'returns expected value' );
 	t.end();
 
 	function closure( x ) {