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test: migrate math/base/special/exp2 to ULP difference testing #13690

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Merged
kgryte merged 1 commit into from
Jul 27, 2026
Merged

test: migrate math/base/special/exp2 to ULP difference testing #13690

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33 changes: 6 additions & 27 deletions lib/node_modules/@stdlib/math/base/special/exp2/test/test.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -22,11 +22,10 @@

var tape = require( 'tape' );
var isnan = require( '@stdlib/math/base/assert/is-nan' );
var abs = require( '@stdlib/math/base/special/abs' );
var PINF = require( '@stdlib/constants/float64/pinf' );
var NINF = require( '@stdlib/constants/float64/ninf' );
var EPS = require( '@stdlib/constants/float64/eps' );
var isPositiveZero = require( '@stdlib/assert/is-positive-zero' );
var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
var exp2 = require( './../lib' );


Expand All @@ -49,8 +48,6 @@ tape( 'main export is a function', function test( t ) {

tape( 'the function accurately computes `2**x` for negative medium numbers', function test( t ) {
var expected;
var delta;
var tol;
var x;
var v;
var i;
Expand All @@ -60,17 +57,13 @@ tape( 'the function accurately computes `2**x` for negative medium numbers', fun

for ( i = 0; i < x.length; i++ ) {
v = exp2( x[ i ] );
delta = abs( v - expected[ i ] );
tol = EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: ' + x[ i ] + '. Value: ' + v + '. Expected: ' + expected[ i ] + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
t.strictEqual( isAlmostSameValue( v, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function accurately computes `2**x` for positive medium numbers', function test( t ) {
var expected;
var delta;
var tol;
var x;
var v;
var i;
Expand All @@ -80,17 +73,13 @@ tape( 'the function accurately computes `2**x` for positive medium numbers', fun

for ( i = 0; i < x.length; i++ ) {
v = exp2( x[ i ] );
delta = abs( v - expected[ i ] );
tol = EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: ' + x[ i ] + '. Value: ' + v + '. Expected: ' + expected[ i ] + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
t.strictEqual( isAlmostSameValue( v, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function accurately computes `2**x` for negative small numbers', function test( t ) {
var expected;
var delta;
var tol;
var x;
var v;
var i;
Expand All @@ -100,17 +89,13 @@ tape( 'the function accurately computes `2**x` for negative small numbers', func

for ( i = 0; i < x.length; i++ ) {
v = exp2( x[ i ] );
delta = abs( v - expected[ i ] );
tol = EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: ' + x[ i ] + '. Value: ' + v + '. Expected: ' + expected[ i ] + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
t.strictEqual( isAlmostSameValue( v, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function accurately computes `2**x` for positive small numbers', function test( t ) {
var expected;
var delta;
var tol;
var x;
var v;
var i;
Expand All @@ -120,17 +105,13 @@ tape( 'the function accurately computes `2**x` for positive small numbers', func

for ( i = 0; i < x.length; i++ ) {
v = exp2( x[ i ] );
delta = abs( v - expected[ i ] );
tol = EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: ' + x[ i ] + '. Value: ' + v + '. Expected: ' + expected[ i ] + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
t.strictEqual( isAlmostSameValue( v, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function accurately computes `2**x` for very small `x`', function test( t ) {
var expected;
var delta;
var tol;
var x;
var v;
var i;
Expand All @@ -140,9 +121,7 @@ tape( 'the function accurately computes `2**x` for very small `x`', function tes

for ( i = 0; i < x.length; i++ ) {
v = exp2( x[ i ] );
delta = abs( v - expected[ i ] );
tol = EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: ' + x[ i ] + '. Value: ' + v + '. Expected: ' + expected[ i ] + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
t.strictEqual( isAlmostSameValue( v, expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});
Expand Down
33 changes: 6 additions & 27 deletions lib/node_modules/@stdlib/math/base/special/exp2/test/test.native.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -23,11 +23,10 @@
var resolve = require( 'path' ).resolve;
var tape = require( 'tape' );
var isnan = require( '@stdlib/math/base/assert/is-nan' );
var abs = require( '@stdlib/math/base/special/abs' );
var PINF = require( '@stdlib/constants/float64/pinf' );
var NINF = require( '@stdlib/constants/float64/ninf' );
var EPS = require( '@stdlib/constants/float64/eps' );
var isPositiveZero = require( '@stdlib/assert/is-positive-zero' );
var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
var tryRequire = require( '@stdlib/utils/try-require' );


Expand Down Expand Up @@ -58,8 +57,6 @@ tape( 'main export is a function', opts, function test( t ) {

tape( 'the function accurately computes `2**x` for negative medium numbers', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var v;
var i;
Expand All @@ -69,17 +66,13 @@ tape( 'the function accurately computes `2**x` for negative medium numbers', opt

for ( i = 0; i < x.length; i++ ) {
v = exp2( x[ i ] );
delta = abs( v - expected[ i ] );
tol = EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: ' + x[ i ] + '. Value: ' + v + '. Expected: ' + expected[ i ] + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
t.strictEqual( isAlmostSameValue( v, expected[ i ], 1 ), true, 'return expected value' );
}
t.end();
});

tape( 'the function accurately computes `2**x` for positive medium numbers', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var v;
var i;
Expand All @@ -89,17 +82,13 @@ tape( 'the function accurately computes `2**x` for positive medium numbers', opt

for ( i = 0; i < x.length; i++ ) {
v = exp2( x[ i ] );
delta = abs( v - expected[ i ] );
tol = EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: ' + x[ i ] + '. Value: ' + v + '. Expected: ' + expected[ i ] + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
t.strictEqual( isAlmostSameValue( v, expected[ i ], 1 ), true, 'return expected value' );
}
t.end();
});

tape( 'the function accurately computes `2**x` for negative small numbers', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var v;
var i;
Expand All @@ -109,17 +98,13 @@ tape( 'the function accurately computes `2**x` for negative small numbers', opts

for ( i = 0; i < x.length; i++ ) {
v = exp2( x[ i ] );
delta = abs( v - expected[ i ] );
tol = EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: ' + x[ i ] + '. Value: ' + v + '. Expected: ' + expected[ i ] + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
t.strictEqual( isAlmostSameValue( v, expected[ i ], 1 ), true, 'return expected value' );
}
t.end();
});

tape( 'the function accurately computes `2**x` for positive small numbers', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var v;
var i;
Expand All @@ -129,17 +114,13 @@ tape( 'the function accurately computes `2**x` for positive small numbers', opts

for ( i = 0; i < x.length; i++ ) {
v = exp2( x[ i ] );
delta = abs( v - expected[ i ] );
tol = EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: ' + x[ i ] + '. Value: ' + v + '. Expected: ' + expected[ i ] + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
t.strictEqual( isAlmostSameValue( v, expected[ i ], 1 ), true, 'return expected value' );
}
t.end();
});

tape( 'the function accurately computes `2**x` for very small `x`', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var v;
var i;
Expand All @@ -149,9 +130,7 @@ tape( 'the function accurately computes `2**x` for very small `x`', opts, functi

for ( i = 0; i < x.length; i++ ) {
v = exp2( x[ i ] );
delta = abs( v - expected[ i ] );
tol = EPS * abs( expected[ i ] );
t.ok( delta <= tol, 'within tolerance. x: ' + x[ i ] + '. Value: ' + v + '. Expected: ' + expected[ i ] + '. Delta: ' + delta + '. Tolerance: ' + tol + '.' );
t.strictEqual( isAlmostSameValue( v, expected[ i ], 1 ), true, 'return expected value' );
}
t.end();
});
Expand Down