Skip to content

test: migrate math/base/special/rsqrt to ULP-based testing #13657

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

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

test: migrate math/base/special/rsqrt to ULP-based testing #13657

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
53 changes: 10 additions & 43 deletions lib/node_modules/@stdlib/math/base/special/rsqrt/test/test.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -21,12 +21,11 @@
// MODULES //

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


Expand All @@ -52,8 +51,6 @@ tape( 'main export is a function', function test( t ) {

tape( 'the function evaluates the reciprocal square root of `x` on the interval `[50,500]`', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -65,18 +62,14 @@ tape( 'the function evaluates the reciprocal square root of `x` on the interval
if ( y === expected[i] ) {
t.strictEqual( y, expected[i], 'x: '+x[i]+', y: '+y+', expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = EPS * abs( expected[i] );
t.strictEqual( delta <= tol, true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. Δ: '+delta+'. Tolerance: '+tol+'.' );
t.strictEqual( isAlmostSameValue( y, expected[i], 1 ), true, 'returns expected value' );
}
}
t.end();
});

tape( 'the function evaluates the reciprocal square root of `x` on the interval `[20,50]`', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -88,18 +81,14 @@ tape( 'the function evaluates the reciprocal square root of `x` on the interval
if ( y === expected[i] ) {
t.strictEqual( y, expected[i], 'x: '+x[i]+', y: '+y+', expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = EPS * abs( expected[i] );
t.strictEqual( delta <= tol, true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. Δ: '+delta+'. Tolerance: '+tol+'.' );
t.strictEqual( isAlmostSameValue( y, expected[i], 1 ), true, 'returns expected value' );
}
}
t.end();
});

tape( 'the function evaluates the reciprocal square root of `x` on the interval `[3,20]`', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -111,18 +100,14 @@ tape( 'the function evaluates the reciprocal square root of `x` on the interval
if ( y === expected[i] ) {
t.strictEqual( y, expected[i], 'x: '+x[i]+', y: '+y+', expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = EPS * abs( expected[i] );
t.strictEqual( delta <= tol, true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. Δ: '+delta+'. Tolerance: '+tol+'.' );
t.strictEqual( isAlmostSameValue( y, expected[i], 1 ), true, 'returns expected value' );
}
}
t.end();
});

tape( 'the function evaluates the reciprocal square root of `x` on the interval `[0.8,3]`', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -134,18 +119,14 @@ tape( 'the function evaluates the reciprocal square root of `x` on the interval
if ( y === expected[i] ) {
t.strictEqual( y, expected[i], 'x: '+x[i]+', y: '+y+', expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = EPS * abs( expected[i] );
t.strictEqual( delta <= tol, true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. Δ: '+delta+'. Tolerance: '+tol+'.' );
t.strictEqual( isAlmostSameValue( y, expected[i], 1 ), true, 'returns expected value' );
}
}
t.end();
});

tape( 'the function evaluates the reciprocal square root of `x` on the interval `[0.0,0.8]`', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -157,18 +138,14 @@ tape( 'the function evaluates the reciprocal square root of `x` on the interval
if ( y === expected[i] ) {
t.strictEqual( y, expected[i], 'x: '+x[i]+', y: '+y+', expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = EPS * abs( expected[i] );
t.strictEqual( delta <= tol, true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. Δ: '+delta+'. Tolerance: '+tol+'.' );
t.strictEqual( isAlmostSameValue( y, expected[i], 1 ), true, 'returns expected value' );
}
}
t.end();
});

tape( 'the function evaluates the reciprocal square root of `x` on the interval `[1e-300,1e-308]`', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -180,18 +157,14 @@ tape( 'the function evaluates the reciprocal square root of `x` on the interval
if ( y === expected[i] ) {
t.strictEqual( y, expected[i], 'x: '+x[i]+', y: '+y+', expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = EPS * abs( expected[i] );
t.strictEqual( delta <= tol, true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. Δ: '+delta+'. Tolerance: '+tol+'.' );
t.strictEqual( isAlmostSameValue( y, expected[i], 1 ), true, 'returns expected value' );
}
}
t.end();
});

tape( 'the function evaluates the reciprocal square root of subnormal `x`', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -203,18 +176,14 @@ tape( 'the function evaluates the reciprocal square root of subnormal `x`', func
if ( y === expected[i] ) {
t.strictEqual( y, expected[i], 'x: '+x[i]+', y: '+y+', expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = EPS * abs( expected[i] );
t.strictEqual( delta <= tol, true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. Δ: '+delta+'. Tolerance: '+tol+'.' );
t.strictEqual( isAlmostSameValue( y, expected[i], 1 ), true, 'returns expected value' );
}
}
t.end();
});

tape( 'the function evaluates the reciprocal square root of `x` (huge positive)', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -226,9 +195,7 @@ tape( 'the function evaluates the reciprocal square root of `x` (huge positive)'
if ( y === expected[i] ) {
t.strictEqual( y, expected[i], 'x: '+x[i]+', y: '+y+', expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = EPS * abs( expected[i] );
t.strictEqual( delta <= tol, true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. Δ: '+delta+'. Tolerance: '+tol+'.' );
t.strictEqual( isAlmostSameValue( y, expected[i], 1 ), true, 'returns expected value' );
}
}
t.end();
Expand Down
53 changes: 10 additions & 43 deletions lib/node_modules/@stdlib/math/base/special/rsqrt/test/test.native.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -22,12 +22,11 @@

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


Expand Down Expand Up @@ -61,8 +60,6 @@ tape( 'main export is a function', opts, function test( t ) {

tape( 'the function evaluates the reciprocal square root of `x` on the interval `[50,500]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -74,18 +71,14 @@ tape( 'the function evaluates the reciprocal square root of `x` on the interval
if ( y === expected[i] ) {
t.strictEqual( y, expected[i], 'x: '+x[i]+', y: '+y+', expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = EPS * abs( expected[i] );
t.strictEqual( delta <= tol, true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. Δ: '+delta+'. Tolerance: '+tol+'.' );
t.strictEqual( isAlmostSameValue( y, expected[i], 1 ), true, 'returns expected value' );
}
}
t.end();
});

tape( 'the function evaluates the reciprocal square root of `x` on the interval `[20,50]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -97,18 +90,14 @@ tape( 'the function evaluates the reciprocal square root of `x` on the interval
if ( y === expected[i] ) {
t.strictEqual( y, expected[i], 'x: '+x[i]+', y: '+y+', expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = EPS * abs( expected[i] );
t.strictEqual( delta <= tol, true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. Δ: '+delta+'. Tolerance: '+tol+'.' );
t.strictEqual( isAlmostSameValue( y, expected[i], 1 ), true, 'returns expected value' );
}
}
t.end();
});

tape( 'the function evaluates the reciprocal square root of `x` on the interval `[3,20]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -120,18 +109,14 @@ tape( 'the function evaluates the reciprocal square root of `x` on the interval
if ( y === expected[i] ) {
t.strictEqual( y, expected[i], 'x: '+x[i]+', y: '+y+', expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = EPS * abs( expected[i] );
t.strictEqual( delta <= tol, true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. Δ: '+delta+'. Tolerance: '+tol+'.' );
t.strictEqual( isAlmostSameValue( y, expected[i], 1 ), true, 'returns expected value' );
}
}
t.end();
});

tape( 'the function evaluates the reciprocal square root of `x` on the interval `[0.8,3]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -143,18 +128,14 @@ tape( 'the function evaluates the reciprocal square root of `x` on the interval
if ( y === expected[i] ) {
t.strictEqual( y, expected[i], 'x: '+x[i]+', y: '+y+', expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = EPS * abs( expected[i] );
t.strictEqual( delta <= tol, true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. Δ: '+delta+'. Tolerance: '+tol+'.' );
t.strictEqual( isAlmostSameValue( y, expected[i], 1 ), true, 'returns expected value' );
}
}
t.end();
});

tape( 'the function evaluates the reciprocal square root of `x` on the interval `[0.0,0.8]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -166,18 +147,14 @@ tape( 'the function evaluates the reciprocal square root of `x` on the interval
if ( y === expected[i] ) {
t.strictEqual( y, expected[i], 'x: '+x[i]+', y: '+y+', expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = EPS * abs( expected[i] );
t.strictEqual( delta <= tol, true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. Δ: '+delta+'. Tolerance: '+tol+'.' );
t.strictEqual( isAlmostSameValue( y, expected[i], 1 ), true, 'returns expected value' );
}
}
t.end();
});

tape( 'the function evaluates the reciprocal square root of `x` on the interval `[1e-300,1e-308]`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -189,18 +166,14 @@ tape( 'the function evaluates the reciprocal square root of `x` on the interval
if ( y === expected[i] ) {
t.strictEqual( y, expected[i], 'x: '+x[i]+', y: '+y+', expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = EPS * abs( expected[i] );
t.strictEqual( delta <= tol, true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. Δ: '+delta+'. Tolerance: '+tol+'.' );
t.strictEqual( isAlmostSameValue( y, expected[i], 1 ), true, 'returns expected value' );
}
}
t.end();
});

tape( 'the function evaluates the reciprocal square root of subnormal `x`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -212,18 +185,14 @@ tape( 'the function evaluates the reciprocal square root of subnormal `x`', opts
if ( y === expected[i] ) {
t.strictEqual( y, expected[i], 'x: '+x[i]+', y: '+y+', expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = EPS * abs( expected[i] );
t.strictEqual( delta <= tol, true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. Δ: '+delta+'. Tolerance: '+tol+'.' );
t.strictEqual( isAlmostSameValue( y, expected[i], 1 ), true, 'returns expected value' );
}
}
t.end();
});

tape( 'the function evaluates the reciprocal square root of `x` (huge positive)', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -235,9 +204,7 @@ tape( 'the function evaluates the reciprocal square root of `x` (huge positive)'
if ( y === expected[i] ) {
t.strictEqual( y, expected[i], 'x: '+x[i]+', y: '+y+', expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = EPS * abs( expected[i] );
t.strictEqual( delta <= tol, true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i]+'. Δ: '+delta+'. Tolerance: '+tol+'.' );
t.strictEqual( isAlmostSameValue( y, expected[i], 1 ), true, 'returns expected value' );
}
}
t.end();
Expand Down