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test: migrate math/base/special/trigamma to ULP-based testing #13666

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Merged
kgryte merged 1 commit into from
Jul 26, 2026
Merged

test: migrate math/base/special/trigamma to ULP-based testing #13666

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23 changes: 3 additions & 20 deletions lib/node_modules/@stdlib/math/base/special/trigamma/test/test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -23,10 +23,9 @@
var tape = require( 'tape' );
var incrspace = require( '@stdlib/array/base/incrspace' );
var isnan = require( '@stdlib/assert/is-nan' );
var abs = require( '@stdlib/math/base/special/abs' );
var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
var NINF = require( '@stdlib/constants/float64/ninf' );
var PINF = require( '@stdlib/constants/float64/pinf' );
var EPS = require( '@stdlib/constants/float64/eps' );
var trigamma = require( './../lib' );


Expand Down Expand Up @@ -83,8 +82,6 @@ tape( 'if provided a negative integer, the function returns `NaN`', function tes

tape( 'the function evaluates the trigamma function for positive numbers', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -93,21 +90,13 @@ tape( 'the function evaluates the trigamma function for positive numbers', funct
expected = positive.y;
for ( i = 0; i < x.length; i++ ) {
y = trigamma( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = 10.0 * 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 trigamma function for negative numbers', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -116,13 +105,7 @@ tape( 'the function evaluates the trigamma function for negative numbers', funct
expected = negative.y;
for ( i = 0; i < x.length; i++ ) {
y = trigamma( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = 10.0 * 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 ], 3 ), true, 'returns expected value' );
}
t.end();
});
23 changes: 3 additions & 20 deletions lib/node_modules/@stdlib/math/base/special/trigamma/test/test.native.js
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Original file line number Diff line number Diff line change
Expand Up @@ -24,10 +24,9 @@ var resolve = require( 'path' ).resolve;
var tape = require( 'tape' );
var incrspace = require( '@stdlib/array/base/incrspace' );
var isnan = require( '@stdlib/assert/is-nan' );
var abs = require( '@stdlib/math/base/special/abs' );
var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
var NINF = require( '@stdlib/constants/float64/ninf' );
var PINF = require( '@stdlib/constants/float64/pinf' );
var EPS = require( '@stdlib/constants/float64/eps' );
var tryRequire = require( '@stdlib/utils/try-require' );


Expand Down Expand Up @@ -92,8 +91,6 @@ tape( 'if provided a negative integer, the function returns `NaN`', opts, functi

tape( 'the function evaluates the trigamma function for positive numbers', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -102,21 +99,13 @@ tape( 'the function evaluates the trigamma function for positive numbers', opts,
expected = positive.y;
for ( i = 0; i < x.length; i++ ) {
y = trigamma( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = 10.0 * 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 trigamma function for negative numbers', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -125,13 +114,7 @@ tape( 'the function evaluates the trigamma function for negative numbers', opts,
expected = negative.y;
for ( i = 0; i < x.length; i++ ) {
y = trigamma( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. E: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = 10.0 * 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 ], 3 ), true, 'returns expected value' );
}
t.end();
});