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test: migrate math/base/special/gammaln to ULP-based assertions #14357

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Merged
kgryte merged 1 commit into from
Aug 17, 2026
Merged

test: migrate math/base/special/gammaln to ULP-based assertions #14357

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23 changes: 3 additions & 20 deletions lib/node_modules/@stdlib/math/base/special/gammaln/test/test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -21,13 +21,12 @@
// MODULES //

var tape = require( 'tape' );
var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
var isnan = require( '@stdlib/math/base/assert/is-nan' );
var abs = require( '@stdlib/math/base/special/abs' );
var ln = require( '@stdlib/math/base/special/ln' );
var pow = require( '@stdlib/math/base/special/pow' );
var PINF = require( '@stdlib/constants/float64/pinf' );
var NINF = require( '@stdlib/constants/float64/ninf' );
var EPS = require( '@stdlib/constants/float64/eps' );
var gammaln = require( './../lib' );


Expand Down Expand Up @@ -88,8 +87,6 @@ tape( 'the function returns `-ln(x)` for very small x', function test( t ) {

tape( 'the function evaluates the natural logarithm of the gamma function (positive integers)', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -99,21 +96,13 @@ tape( 'the function evaluates the natural logarithm of the gamma function (posit

for ( i = 0; i < x.length; i++ ) {
y = gammaln( x[ i ] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[ i ] );
tol = 21.2 * EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
}
t.strictEqual( isAlmostSameValue( y, expected[ i ], 2 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function evaluates the natural logarithm of the gamma function (decimal values)', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -123,13 +112,7 @@ tape( 'the function evaluates the natural logarithm of the gamma function (decim

for ( i = 0; i < x.length; i++ ) {
y = gammaln( x[ i ] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[ i ] );
tol = 1.1e4 * EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
}
t.strictEqual( isAlmostSameValue( y, expected[ i ], 15 ), true, 'returns expected value' );
}
t.end();
});
Expand Down
23 changes: 3 additions & 20 deletions lib/node_modules/@stdlib/math/base/special/gammaln/test/test.native.js
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Original file line number Diff line number Diff line change
Expand Up @@ -22,13 +22,12 @@

var resolve = require( 'path' ).resolve;
var tape = require( 'tape' );
var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
var isnan = require( '@stdlib/math/base/assert/is-nan' );
var abs = require( '@stdlib/math/base/special/abs' );
var ln = require( '@stdlib/math/base/special/ln' );
var pow = require( '@stdlib/math/base/special/pow' );
var PINF = require( '@stdlib/constants/float64/pinf' );
var NINF = require( '@stdlib/constants/float64/ninf' );
var EPS = require( '@stdlib/constants/float64/eps' );
var tryRequire = require( '@stdlib/utils/try-require' );


Expand Down Expand Up @@ -97,8 +96,6 @@ tape( 'the function returns `-ln(x)` for very small x', opts, function test( t )

tape( 'the function evaluates the natural logarithm of the gamma function (positive integers)', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -108,21 +105,13 @@ tape( 'the function evaluates the natural logarithm of the gamma function (posit

for ( i = 0; i < x.length; i++ ) {
y = gammaln( x[ i ] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[ i ] );
tol = 21.2 * EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
}
t.strictEqual( isAlmostSameValue( y, expected[ i ], 2 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function evaluates the natural logarithm of the gamma function (decimal values)', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -132,13 +121,7 @@ tape( 'the function evaluates the natural logarithm of the gamma function (decim

for ( i = 0; i < x.length; i++ ) {
y = gammaln( x[ i ] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[ i ] );
tol = 1.1e4 * EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. tol: '+tol+'. Δ: '+delta+'.' );
}
t.strictEqual( isAlmostSameValue( y, expected[ i ], 15 ), true, 'returns expected value' );
}
t.end();
});
Expand Down
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