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test: migrate blas/base/scnrm2 to ULP-based assertions #16261

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Merged
kgryte merged 1 commit into from
Oct 24, 2026
+33 −153
Merged

test: migrate blas/base/scnrm2 to ULP-based assertions #16261

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54 changes: 12 additions & 42 deletions lib/node_modules/@stdlib/blas/base/scnrm2/test/test.ndarray.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -22,40 +22,10 @@

var tape = require( 'tape' );
var Complex64Array = require( '@stdlib/array/complex64' );
var EPS = require( '@stdlib/constants/float64/eps' );
var abs = require( '@stdlib/math/base/special/abs' );
var isAlmostSameValuef = require( '@stdlib/number/float32/base/assert/is-almost-same-value' );
var scnrm2 = require( './../lib/ndarray.js' );


// FUNCTIONS //

/**
* Tests for element-wise approximate equality.
*
* @private
* @param {Object} t - test object
* @param {Collection} actual - actual values
* @param {Collection} expected - expected values
* @param {number} rtol - relative tolerance
*/
function isApprox( t, actual, expected, rtol ) {
var delta;
var tol;
var i;

t.strictEqual( actual.length, expected.length, 'returns expected value' );
for ( i = 0; i < expected.length; i++ ) {
if ( actual[ i ] === expected[ i ] ) {
t.strictEqual( actual[ i ], expected[ i ], 'returns expected value' );
} else {
delta = abs( actual[ i ] - expected[ i ] );
tol = rtol * EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. actual: '+actual[ i ]+'. expected: '+expected[ i ]+'. delta: '+delta+'. tol: '+tol+'.' );
}
}
}


// TESTS //

tape( 'main export is a function', function test( t ) {
Expand Down Expand Up @@ -89,7 +59,7 @@ tape( 'the function computes the L2-norm', function test( t ) {
expected = 0.8;

actual = scnrm2( 4, x, 1, 0 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );

x = new Complex64Array([
0.1, // 1
Expand All @@ -104,7 +74,7 @@ tape( 'the function computes the L2-norm', function test( t ) {
expected = 0.7;

actual = scnrm2( 3, x, 1, 0 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );

// Checked on Wolfram Alpha:
x = new Complex64Array([
Expand All @@ -120,7 +90,7 @@ tape( 'the function computes the L2-norm', function test( t ) {
expected = 14142135623730952;

actual = scnrm2( 4, x, 1, 0 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );

// Checked on Wolfram Alpha:
x = new Complex64Array([
Expand All @@ -136,7 +106,7 @@ tape( 'the function computes the L2-norm', function test( t ) {
expected = 2.82843e-20;

actual = scnrm2( 4, x, 1, 0 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 9 ), true, 'returns expected value' );

// Checked on Wolfram Alpha:
x = new Complex64Array([
Expand All @@ -152,7 +122,7 @@ tape( 'the function computes the L2-norm', function test( t ) {
expected = 200000000000000000000;

actual = scnrm2( 4, x, 1, 0 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );

// Checked on Wolfram Alpha:
x = new Complex64Array([
Expand All @@ -168,7 +138,7 @@ tape( 'the function computes the L2-norm', function test( t ) {
expected = 20000000000;

actual = scnrm2( 4, x, 1, 0 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 0 ), true, 'returns expected value' );

// Checked on Wolfram Alpha:
x = new Complex64Array([
Expand All @@ -184,7 +154,7 @@ tape( 'the function computes the L2-norm', function test( t ) {
expected = 2.52012e-19;

actual = scnrm2( 4, x, 1, 0 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 13 ), true, 'returns expected value' );
t.end();
});

Expand Down Expand Up @@ -233,7 +203,7 @@ tape( 'the function supports specifying a stride', function test( t ) {
expected = 0.8;

actual = scnrm2( 4, x, 2, 0 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );
t.end();
});

Expand Down Expand Up @@ -263,7 +233,7 @@ tape( 'the function supports specifying a negative stride', function test( t ) {
expected = 0.8;

actual = scnrm2( 4, x, -2, 6 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );
t.end();
});

Expand All @@ -284,9 +254,9 @@ tape( 'the function supports specifying an offset', function test( t ) {
9.0,
10.0
]);
expected = 14.1;
expected = 14.106736183166504;

actual = scnrm2( 3, x, 1, 1 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 0 ), true, 'returns expected value' );
t.end();
});
44 changes: 7 additions & 37 deletions lib/node_modules/@stdlib/blas/base/scnrm2/test/test.ndarray.native.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -23,8 +23,7 @@
var resolve = require( 'path' ).resolve;
var tape = require( 'tape' );
var Complex64Array = require( '@stdlib/array/complex64' );
var EPS = require( '@stdlib/constants/float64/eps' );
var abs = require( '@stdlib/math/base/special/abs' );
var isAlmostSameValuef = require( '@stdlib/number/float32/base/assert/is-almost-same-value' );
var tryRequire = require( '@stdlib/utils/try-require' );


Expand All @@ -36,35 +35,6 @@ var opts = {
};


// FUNCTIONS //

/**
* Tests for element-wise approximate equality.
*
* @private
* @param {Object} t - test object
* @param {Collection} actual - actual values
* @param {Collection} expected - expected values
* @param {number} rtol - relative tolerance
*/
function isApprox( t, actual, expected, rtol ) {
var delta;
var tol;
var i;

t.strictEqual( actual.length, expected.length, 'returns expected value' );
for ( i = 0; i < expected.length; i++ ) {
if ( actual[ i ] === expected[ i ] ) {
t.strictEqual( actual[ i ], expected[ i ], 'returns expected value' );
} else {
delta = abs( actual[ i ] - expected[ i ] );
tol = rtol * EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. actual: '+actual[ i ]+'. expected: '+expected[ i ]+'. delta: '+delta+'. tol: '+tol+'.' );
}
}
}


// TESTS //

tape( 'main export is a function', opts, function test( t ) {
Expand Down Expand Up @@ -98,7 +68,7 @@ tape( 'the function computes the L2-norm', opts, function test( t ) {
expected = 0.8;

actual = scnrm2( 4, x, 1, 0 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );

x = new Complex64Array([
0.1, // 1
Expand All @@ -113,7 +83,7 @@ tape( 'the function computes the L2-norm', opts, function test( t ) {
expected = 0.7;

actual = scnrm2( 3, x, 1, 0 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );
t.end();
});

Expand Down Expand Up @@ -162,7 +132,7 @@ tape( 'the function supports specifying a stride', opts, function test( t ) {
expected = 0.8;

actual = scnrm2( 4, x, 2, 0 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );
t.end();
});

Expand Down Expand Up @@ -192,7 +162,7 @@ tape( 'the function supports specifying a negative stride', opts, function test(
expected = 0.8;

actual = scnrm2( 4, x, -2, 6 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );
t.end();
});

Expand All @@ -213,9 +183,9 @@ tape( 'the function supports specifying an offset', opts, function test( t ) {
9.0,
10.0
]);
expected = 14.1;
expected = 14.106736183166504;

actual = scnrm2( 3, x, 1, 1 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );
t.end();
});
44 changes: 7 additions & 37 deletions lib/node_modules/@stdlib/blas/base/scnrm2/test/test.scnrm2.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -22,40 +22,10 @@

var tape = require( 'tape' );
var Complex64Array = require( '@stdlib/array/complex64' );
var EPS = require( '@stdlib/constants/float64/eps' );
var abs = require( '@stdlib/math/base/special/abs' );
var isAlmostSameValuef = require( '@stdlib/number/float32/base/assert/is-almost-same-value' );
var scnrm2 = require( './../lib/scnrm2.js' );


// FUNCTIONS //

/**
* Tests for element-wise approximate equality.
*
* @private
* @param {Object} t - test object
* @param {Collection} actual - actual values
* @param {Collection} expected - expected values
* @param {number} rtol - relative tolerance
*/
function isApprox( t, actual, expected, rtol ) {
var delta;
var tol;
var i;

t.strictEqual( actual.length, expected.length, 'returns expected value' );
for ( i = 0; i < expected.length; i++ ) {
if ( actual[ i ] === expected[ i ] ) {
t.strictEqual( actual[ i ], expected[ i ], 'returns expected value' );
} else {
delta = abs( actual[ i ] - expected[ i ] );
tol = rtol * EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. actual: '+actual[ i ]+'. expected: '+expected[ i ]+'. delta: '+delta+'. tol: '+tol+'.' );
}
}
}


// TESTS //

tape( 'main export is a function', function test( t ) {
Expand Down Expand Up @@ -89,7 +59,7 @@ tape( 'the function computes the L2-norm', function test( t ) {
expected = 0.8;

actual = scnrm2( 4, x, 1 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );

x = new Complex64Array([
0.1, // 1
Expand All @@ -104,7 +74,7 @@ tape( 'the function computes the L2-norm', function test( t ) {
expected = 0.7;

actual = scnrm2( 3, x, 1 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );
t.end();
});

Expand Down Expand Up @@ -153,7 +123,7 @@ tape( 'the function supports specifying a stride', function test( t ) {
expected = 0.8;

actual = scnrm2( 4, x, 2 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );
t.end();
});

Expand Down Expand Up @@ -183,7 +153,7 @@ tape( 'the function supports specifying a negative stride', function test( t ) {
expected = 0.8;

actual = scnrm2( 4, x, -2 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 1 ), true, 'returns expected value' );
t.end();
});

Expand All @@ -205,11 +175,11 @@ tape( 'the function supports view offsets', function test( t ) {
9.0,
10.0
]);
expected = 14.1;
expected = 14.106736183166504;

x1 = new Complex64Array( x0.buffer, x0.BYTES_PER_ELEMENT*1 );

actual = scnrm2( 3, x1, 1 );
isApprox( t, actual, expected, 2.0 );
t.strictEqual( isAlmostSameValuef( actual, expected, 0 ), true, 'returns expected value' );
t.end();
});
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