From 240adf57d722230228ad0ef031d767aafba219e3 Mon Sep 17 00:00:00 2001
From: Aryan Kumar <aryan002005@gmail.com>
Date: Wed, 9 Sep 2026 13:08:17 -0700
Subject: [PATCH] test: migrate stats/base/dists/t/cdf to ULP-based assertions

---
 .../stats/base/dists/t/cdf/test/test.cdf.js   | 43 +++----------------
 .../base/dists/t/cdf/test/test.factory.js     | 43 +++----------------
 2 files changed, 10 insertions(+), 76 deletions(-)

diff --git a/lib/node_modules/@stdlib/stats/base/dists/t/cdf/test/test.cdf.js b/lib/node_modules/@stdlib/stats/base/dists/t/cdf/test/test.cdf.js
index 9ff43c4bfec4..dde71116bc78 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/t/cdf/test/test.cdf.js
+++ b/lib/node_modules/@stdlib/stats/base/dists/t/cdf/test/test.cdf.js
@@ -22,10 +22,9 @@
 
 var tape = require( 'tape' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
-var abs = require( '@stdlib/math/base/special/abs' );
+var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
 var PINF = require( '@stdlib/constants/float64/pinf' );
 var NINF = require( '@stdlib/constants/float64/ninf' );
-var EPS = require( '@stdlib/constants/float64/eps' );
 var cdf = require( './../lib' );
 
 
@@ -85,8 +84,6 @@ tape( 'if provided a nonpositive `v`, the function always returns `NaN`', functi
 
 tape( 'the function evaluates the cdf for `x` given parameter `v` (when `x` and `v` are small)', function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var x;
 	var v;
 	var y;
@@ -97,21 +94,13 @@ tape( 'the function evaluates the cdf for `x` given parameter `v` (when `x` and
 	v = smallSmall.v;
 	for ( i = 0; i < x.length; i++ ) {
 		y = cdf( x[i], v[i] );
-		if ( y === expected[i] ) {
-			t.strictEqual( y, expected[i], 'x: '+x[i]+'. v: '+v[i]+', y: '+y+', expected: '+expected[i] );
-		} else {
-			delta = abs( y - expected[ i ] );
-			tol = 10.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. v: '+v[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( y, expected[i], 13 ), true, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function evaluates the cdf for `x` given parameter `v` (when `x` is large and `v` small)', function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var x;
 	var v;
 	var y;
@@ -122,21 +111,13 @@ tape( 'the function evaluates the cdf for `x` given parameter `v` (when `x` is l
 	v = largeSmall.v;
 	for ( i = 0; i < x.length; i++ ) {
 		y = cdf( x[i], v[i] );
-		if ( y === expected[i] ) {
-			t.strictEqual( y, expected[i], 'x: '+x[i]+'. v: '+v[i]+', y: '+y+', expected: '+expected[i] );
-		} else {
-			delta = abs( y - expected[ i ] );
-			tol = 10.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. v: '+v[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( y, expected[i], 11 ), true, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function evaluates the cdf for `x` given parameter `v` (when `x` is small and `v` large)', function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var x;
 	var v;
 	var y;
@@ -147,21 +128,13 @@ tape( 'the function evaluates the cdf for `x` given parameter `v` (when `x` is s
 	v = smallLarge.v;
 	for ( i = 0; i < x.length; i++ ) {
 		y = cdf( x[i], v[i] );
-		if ( y === expected[i] ) {
-			t.strictEqual( y, expected[i], 'x: '+x[i]+'. v: '+v[i]+', y: '+y+', expected: '+expected[i] );
-		} else {
-			delta = abs( y - expected[ i ] );
-			tol = 10.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. v: '+v[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( y, expected[i], 15 ), true, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function evaluates the cdf for `x` given parameter `v` (when `x` and `v` are large)', function test( t ) {
 	var expected;
-	var delta;
-	var tol;
 	var x;
 	var v;
 	var y;
@@ -172,13 +145,7 @@ tape( 'the function evaluates the cdf for `x` given parameter `v` (when `x` and
 	v = largeLarge.v;
 	for ( i = 0; i < x.length; i++ ) {
 		y = cdf( x[i], v[i] );
-		if ( y === expected[i] ) {
-			t.strictEqual( y, expected[i], 'x: '+x[i]+'. v: '+v[i]+', y: '+y+', expected: '+expected[i] );
-		} else {
-			delta = abs( y - expected[ i ] );
-			tol = 20.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. v: '+v[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( y, expected[i], 32 ), true, 'returns expected value' );
 	}
 	t.end();
 });
diff --git a/lib/node_modules/@stdlib/stats/base/dists/t/cdf/test/test.factory.js b/lib/node_modules/@stdlib/stats/base/dists/t/cdf/test/test.factory.js
index 37c49a3d7406..fd37e6bffc9c 100644
--- a/lib/node_modules/@stdlib/stats/base/dists/t/cdf/test/test.factory.js
+++ b/lib/node_modules/@stdlib/stats/base/dists/t/cdf/test/test.factory.js
@@ -22,10 +22,9 @@
 
 var tape = require( 'tape' );
 var isnan = require( '@stdlib/math/base/assert/is-nan' );
-var abs = require( '@stdlib/math/base/special/abs' );
+var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
 var PINF = require( '@stdlib/constants/float64/pinf' );
 var NINF = require( '@stdlib/constants/float64/ninf' );
-var EPS = require( '@stdlib/constants/float64/eps' );
 var factory = require( './../lib/factory.js' );
 
 
@@ -129,9 +128,7 @@ tape( 'if provided a nonpositive `v`, the created function always returns `NaN`'
 
 tape( 'the created function evaluates the cdf for `x` given parameter `v` (when `x` and `v` are small)', function test( t ) {
 	var expected;
-	var delta;
 	var cdf;
-	var tol;
 	var i;
 	var v;
 	var x;
@@ -143,22 +140,14 @@ tape( 'the created function evaluates the cdf for `x` given parameter `v` (when
 	for ( i = 0; i < x.length; i++ ) {
 		cdf = factory( v[i] );
 		y = cdf( x[i] );
-		if ( y === expected[i] ) {
-			t.strictEqual( y, expected[i], 'x: '+x[i]+'. v: '+v[i]+', y: '+y+', expected: '+expected[i] );
-		} else {
-			delta = abs( y - expected[ i ] );
-			tol = 10.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. v: '+v[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( y, expected[i], 13 ), true, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function evaluates the cdf for `x` given parameter `v` (when `x` is large and `v` small)', function test( t ) {
 	var expected;
-	var delta;
 	var cdf;
-	var tol;
 	var i;
 	var v;
 	var x;
@@ -170,22 +159,14 @@ tape( 'the function evaluates the cdf for `x` given parameter `v` (when `x` is l
 	for ( i = 0; i < x.length; i++ ) {
 		cdf = factory( v[i] );
 		y = cdf( x[i] );
-		if ( y === expected[i] ) {
-			t.strictEqual( y, expected[i], 'x: '+x[i]+'. v: '+v[i]+', y: '+y+', expected: '+expected[i] );
-		} else {
-			delta = abs( y - expected[ i ] );
-			tol = 10.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. v: '+v[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( y, expected[i], 11 ), true, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function evaluates the cdf for `x` given parameter `v` (when `x` is small and `v` large)', function test( t ) {
 	var expected;
-	var delta;
 	var cdf;
-	var tol;
 	var i;
 	var v;
 	var x;
@@ -197,22 +178,14 @@ tape( 'the function evaluates the cdf for `x` given parameter `v` (when `x` is s
 	for ( i = 0; i < x.length; i++ ) {
 		cdf = factory( v[i] );
 		y = cdf( x[i] );
-		if ( y === expected[i] ) {
-			t.strictEqual( y, expected[i], 'x: '+x[i]+'. v: '+v[i]+', y: '+y+', expected: '+expected[i] );
-		} else {
-			delta = abs( y - expected[ i ] );
-			tol = 10.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. v: '+v[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( y, expected[i], 15 ), true, 'returns expected value' );
 	}
 	t.end();
 });
 
 tape( 'the function evaluates the cdf for `x` given parameter `v` (when `x` and `v` are large)', function test( t ) {
 	var expected;
-	var delta;
 	var cdf;
-	var tol;
 	var i;
 	var v;
 	var x;
@@ -224,13 +197,7 @@ tape( 'the function evaluates the cdf for `x` given parameter `v` (when `x` and
 	for ( i = 0; i < x.length; i++ ) {
 		cdf = factory( v[i] );
 		y = cdf( x[i] );
-		if ( y === expected[i] ) {
-			t.strictEqual( y, expected[i], 'x: '+x[i]+'. v: '+v[i]+', y: '+y+', expected: '+expected[i] );
-		} else {
-			delta = abs( y - expected[ i ] );
-			tol = 20.0 * EPS * abs( expected[ i ] );
-			t.ok( delta <= tol, 'within tolerance. x: '+x[ i ]+'. v: '+v[i]+'. y: '+y+'. E: '+expected[ i ]+'. Δ: '+delta+'. tol: '+tol+'.' );
-		}
+		t.strictEqual( isAlmostSameValue( y, expected[i], 32 ), true, 'returns expected value' );
 	}
 	t.end();
 });