From 63b983914a379c12ada4e0654322d32470bfa236 Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Sat, 26 Sep 2026 09:16:53 +0000
Subject: [PATCH] test: migrate `stats/incr/mhmean` to ULP-based assertions

Resolves a part of #11352

Replaces relative-tolerance comparisons (`EPS * abs(...)`) in the
package's test suite with `isAlmostSameValue` ULP-difference
assertions, tightened to the minimum ULP required for each case.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_012mhq6GePBcsMEYEDQh3R1Y

---
type: pre_commit_static_analysis_report
description: Results of running static analysis checks when committing changes.
report:
  - task: lint_filenames
    status: passed
  - task: lint_editorconfig
    status: skipped
  - task: lint_markdown_pkg_readmes
    status: na
  - task: lint_markdown_docs
    status: na
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    status: na
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    status: na
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  - task: lint_javascript_src
    status: na
  - task: lint_javascript_cli
    status: na
  - task: lint_javascript_examples
    status: na
  - task: lint_javascript_tests
    status: passed
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  - task: lint_r
    status: na
  - task: lint_c_src
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  - task: lint_c_examples
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  - task: lint_c_benchmarks
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  - task: lint_c_tests_fixtures
    status: na
  - task: lint_shell
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  - task: lint_typescript_declarations
    status: passed
  - task: lint_typescript_tests
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  - task: lint_license_headers
    status: passed
---
---
 .../@stdlib/stats/incr/mhmean/test/test.js    | 19 +++----------------
 1 file changed, 3 insertions(+), 16 deletions(-)

diff --git a/lib/node_modules/@stdlib/stats/incr/mhmean/test/test.js b/lib/node_modules/@stdlib/stats/incr/mhmean/test/test.js
index 338377e7ad5d..33cc8c7c3ae3 100644
--- a/lib/node_modules/@stdlib/stats/incr/mhmean/test/test.js
+++ b/lib/node_modules/@stdlib/stats/incr/mhmean/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 EPSILON = require( '@stdlib/constants/float64/eps' );
+var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
 var incrmhmean = require( './../lib' );
 
 
@@ -73,9 +72,7 @@ tape( 'the function returns an accumulator function', function test( t ) {
 tape( 'the accumulator function computes a moving harmonic mean incrementally', function test( t ) {
 	var expected;
 	var actual;
-	var delta;
 	var data;
-	var tol;
 	var acc;
 	var N;
 	var i;
@@ -100,13 +97,7 @@ tape( 'the accumulator function computes a moving harmonic mean incrementally',
 	];
 
 	for ( i = 0; i < N; i++ ) {
-		if ( actual[ i ] === expected[ i ] ) {
-			t.strictEqual( actual[ i ], expected[ i ], 'returns expected value' );
-		} else {
-			delta = abs( expected[ i ] - actual[ i ] );
-			tol = EPSILON * abs( expected[ i ] );
-			t.strictEqual( delta <= tol, true, 'within tolerance. Expected: '+expected[ i ]+'. Actual: '+actual[ i ]+'. Delta: '+delta+'. Tol: '+tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( actual[ i ], expected[ i ], 1 ), true, 'returns expected value' );
 	}
 	t.end();
 });
@@ -114,10 +105,8 @@ tape( 'the accumulator function computes a moving harmonic mean incrementally',
 tape( 'if not provided an input value, the accumulator function returns the current harmonic mean', function test( t ) {
 	var expected;
 	var actual;
-	var delta;
 	var data;
 	var acc;
-	var tol;
 	var i;
 
 	data = [ 2.0, 3.0, 5.0 ];
@@ -127,9 +116,7 @@ tape( 'if not provided an input value, the accumulator function returns the curr
 	}
 	actual = acc();
 	expected = 3.75; // Note: computed by hand using textbook formula
-	delta = abs( expected - actual );
-	tol = 1.1 * EPSILON * abs( expected );
-	t.strictEqual( delta <= tol, true, 'within tolerance. Expected: '+expected+'. Actual: '+actual+'. Delta: '+delta+'. Tol: '+tol+'.' );
+	t.strictEqual( isAlmostSameValue( actual, expected, 2 ), true, 'returns expected value' );
 	t.end();
 });