From f29d63e32ed8199a90a4f82fb8e4f3c2df049512 Mon Sep 17 00:00:00 2001
From: Athan Reines <kgryte+claude@gmail.com>
Date: Fri, 9 Oct 2026 18:26:01 +0000
Subject: [PATCH] test: migrate `stats/incr/nanmmpe` to ULP-based assertions

Replaces relative tolerance assertions with ULP difference assertions
using `@stdlib/assert/is-almost-same-value`. The ULP bound was tightened
to the measured minimum of 1 ULP.

Resolves a part of https://github.com/stdlib-js/stdlib/issues/11352.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_019LRi44byiqKb1zH1gx1krz
---
 .../@stdlib/stats/incr/nanmmpe/test/test.js         | 13 ++-----------
 1 file changed, 2 insertions(+), 11 deletions(-)

diff --git a/lib/node_modules/@stdlib/stats/incr/nanmmpe/test/test.js b/lib/node_modules/@stdlib/stats/incr/nanmmpe/test/test.js
index 29bf5da69012..5e66bbf66b96 100644
--- a/lib/node_modules/@stdlib/stats/incr/nanmmpe/test/test.js
+++ b/lib/node_modules/@stdlib/stats/incr/nanmmpe/test/test.js
@@ -22,8 +22,7 @@
 
 var tape = require( 'tape' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
-var abs = require( '@stdlib/math/base/special/abs' );
-var EPS = require( '@stdlib/constants/float64/eps' );
+var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
 var incrnanmmpe = require( './../lib' );
 
 
@@ -73,10 +72,8 @@ tape( 'the function returns an accumulator function', function test( t ) {
 tape( 'the accumulator function computes a moving mean percentage error incrementally', function test( t ) {
 	var expected;
 	var actual;
-	var delta;
 	var data;
 	var acc;
-	var tol;
 	var N;
 	var i;
 
@@ -103,13 +100,7 @@ tape( 'the accumulator function computes a moving mean percentage error incremen
 	];
 	for ( i = 0; i < N; i++ ) {
 		actual = acc( data[i][0], data[i][1] );
-		if ( actual === expected[i] ) {
-			t.equal( actual, expected[i], 'returns expected value' );
-		} else {
-			delta = abs( expected[i] - actual );
-			tol = 1.0 * EPS * abs( expected[i] );
-			t.equal( delta <= tol, true, 'within tolerance. Actual: '+actual+'. Expected: '+expected[i]+'. Delta: '+delta+'. Tol: '+tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( actual, expected[i], 1 ), true, 'returns expected value' );
 	}
 	t.end();
 });