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Merged
kgryte merged 5 commits into from
Apr 3, 2026
Merged

test: migrate math/base/special/cos to ULP-based testing #11281

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4055159
test: migrated to ulp based testing
nirmaljb Apr 3, 2026
b9d0da0
chore: updated the year
nirmaljb Apr 3, 2026
254df49
fix: revert unintended date changes and address review comments
nirmaljb Apr 3, 2026
ea86344
Merge branch 'develop' into ulp/cos
anandkaranubc Apr 3, 2026
07e7959
fix: updated the namespace for each test case
nirmaljb Apr 3, 2026
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63 changes: 7 additions & 56 deletions lib/node_modules/@stdlib/math/base/special/cos/test/test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -22,10 +22,9 @@

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 isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
var cos = require( './../lib' );


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

tape( 'the function computes the cosine (medium negative values)', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -60,22 +57,14 @@ tape( 'the function computes the cosine (medium negative values)', function test

for ( i = 0; i < x.length; i++ ) {
y = cos( x[ i ] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[ i ] );
tol = 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 ], 1 ), true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i] );
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}

t.end();
});

tape( 'the function computes the cosine (positive medium values)', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -85,22 +74,14 @@ tape( 'the function computes the cosine (positive medium values)', function test

for ( i = 0; i < x.length; i++ ) {
y = cos( x[ i ] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[ i ] );
tol = 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 ], 1 ), true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i] );
}

t.end();
});

tape( 'the function computes the cosine (large negative values)', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -110,22 +91,14 @@ tape( 'the function computes the cosine (large negative values)', function test(

for ( i = 0; i < x.length; i++ ) {
y = cos( x[ i ] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[ i ] );
tol = 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 ], 1 ), true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i] );
}

t.end();
});

tape( 'the function computes the cosine (large positive values)', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -135,22 +108,14 @@ tape( 'the function computes the cosine (large positive values)', function test(

for ( i = 0; i < x.length; i++ ) {
y = cos( x[ i ] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[ i ] );
tol = 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 ], 1 ), true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i] );
}

t.end();
});

tape( 'the function computes the cosine (huge negative values)', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -160,22 +125,14 @@ tape( 'the function computes the cosine (huge negative values)', function test(

for ( i = 0; i < x.length; i++ ) {
y = cos( x[ i ] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[ i ] );
tol = 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 ], 1 ), true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i] );
}

t.end();
});

tape( 'the function computes the cosine (huge positive values)', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -185,13 +142,7 @@ tape( 'the function computes the cosine (huge positive values)', function test(

for ( i = 0; i < x.length; i++ ) {
y = cos( x[ i ] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[ i ] );
tol = 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 ], 1 ), true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i] );
}

t.end();
Expand Down
64 changes: 7 additions & 57 deletions lib/node_modules/@stdlib/math/base/special/cos/test/test.native.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -23,10 +23,9 @@
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 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 computes the cosine (medium negative values)', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -69,22 +66,14 @@ tape( 'the function computes the cosine (medium negative values)', opts, functio

for ( i = 0; i < x.length; i++ ) {
y = cos( x[ i ] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[ i ] );
tol = 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 ], 1 ), true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i] );
}

t.end();
});

tape( 'the function computes the cosine (positive medium values)', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -94,22 +83,14 @@ tape( 'the function computes the cosine (positive medium values)', opts, functio

for ( i = 0; i < x.length; i++ ) {
y = cos( x[ i ] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[ i ] );
tol = 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 ], 1 ), true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i] );
}

t.end();
});

tape( 'the function computes the cosine (large negative values)', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -119,22 +100,14 @@ tape( 'the function computes the cosine (large negative values)', opts, function

for ( i = 0; i < x.length; i++ ) {
y = cos( x[ i ] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[ i ] );
tol = 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 ], 1 ), true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i] );
}

t.end();
});

tape( 'the function computes the cosine (large positive values)', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -144,22 +117,14 @@ tape( 'the function computes the cosine (large positive values)', opts, function

for ( i = 0; i < x.length; i++ ) {
y = cos( x[ i ] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[ i ] );
tol = 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 ], 1 ), true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i] );
}

t.end();
});

tape( 'the function computes the cosine (huge negative values)', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -169,22 +134,13 @@ tape( 'the function computes the cosine (huge negative values)', opts, function

for ( i = 0; i < x.length; i++ ) {
y = cos( x[ i ] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[ i ] );
tol = 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 ], 1 ), true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i] );
}

t.end();
});

tape( 'the function computes the cosine (huge positive values)', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -194,13 +150,7 @@ tape( 'the function computes the cosine (huge positive values)', opts, function

for ( i = 0; i < x.length; i++ ) {
y = cos( x[ i ] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[ i ] );
tol = 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 ], 1 ), true, 'within tolerance. x: '+x[i]+'. y: '+y+'. E: '+expected[i] );
}

t.end();
Expand Down