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test: migrate math/base/special/tanh to ULP-based testing #13652

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Merged
kgryte merged 1 commit into from
Jul 25, 2026
Merged

test: migrate math/base/special/tanh to ULP-based testing #13652

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53 changes: 6 additions & 47 deletions lib/node_modules/@stdlib/math/base/special/tanh/test/test.js
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -26,8 +26,7 @@ var isNegativeZero = require( '@stdlib/math/base/assert/is-negative-zero' );
var isPositiveZero = require( '@stdlib/math/base/assert/is-positive-zero' );
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 isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
var tanh = require( './../lib' );


Expand All @@ -50,8 +49,6 @@ tape( 'main export is a function', function test( t ) {

tape( 'the function computes the hyperbolic tangent', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -61,21 +58,13 @@ tape( 'the function computes the hyperbolic tangent', function test( t ) {

for ( i = 0; i < x.length; i++ ) {
y = tanh( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = 1.7 * EPS * abs( expected[i] );
t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y+'. Expected: '+expected[i]+'. Tolerance: '+tol+'.' );
}
t.strictEqual( isAlmostSameValue( y, expected[ i ], 2 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function computes the hyperbolic tangent (tiny negative)', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -85,21 +74,13 @@ tape( 'the function computes the hyperbolic tangent (tiny negative)', function t

for ( i = 0; i < x.length; i++ ) {
y = tanh( 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]+'. Value: '+y+'. Expected: '+expected[i]+'. Tolerance: '+tol+'.' );
}
t.strictEqual( y, expected[ i ], 'returns expected value' );
}
t.end();
});

tape( 'the function computes the hyperbolic tangent (tiny positive)', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -109,21 +90,13 @@ tape( 'the function computes the hyperbolic tangent (tiny positive)', function t

for ( i = 0; i < x.length; i++ ) {
y = tanh( 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]+'. Value: '+y+'. Expected: '+expected[i]+'. Tolerance: '+tol+'.' );
}
t.strictEqual( y, expected[ i ], 'returns expected value' );
}
t.end();
});

tape( 'the function computes the hyperbolic tangent (large negative)', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -133,21 +106,13 @@ tape( 'the function computes the hyperbolic tangent (large negative)', function

for ( i = 0; i < x.length; i++ ) {
y = tanh( 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]+'. Value: '+y+'. Expected: '+expected[i]+'. Tolerance: '+tol+'.' );
}
t.strictEqual( y, expected[ i ], 'returns expected value' );
}
t.end();
});

tape( 'the function computes the hyperbolic tangent (large positive)', function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -157,13 +122,7 @@ tape( 'the function computes the hyperbolic tangent (large positive)', function

for ( i = 0; i < x.length; i++ ) {
y = tanh( 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]+'. Value: '+y+'. Expected: '+expected[i]+'. Tolerance: '+tol+'.' );
}
t.strictEqual( y, expected[ i ], 'returns expected value' );
}
t.end();
});
Expand Down
53 changes: 6 additions & 47 deletions lib/node_modules/@stdlib/math/base/special/tanh/test/test.native.js
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -28,8 +28,7 @@ var isPositiveZero = require( '@stdlib/math/base/assert/is-positive-zero' );
var PINF = require( '@stdlib/constants/float64/pinf' );
var NINF = require( '@stdlib/constants/float64/ninf' );
var tryRequire = require( '@stdlib/utils/try-require' );
var EPS = require( '@stdlib/constants/float64/eps' );
var abs = require( '@stdlib/math/base/special/abs' );
var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );


// FIXTURES //
Expand Down Expand Up @@ -59,8 +58,6 @@ tape( 'main export is a function', opts, function test( t ) {

tape( 'the function computes the hyperbolic tangent', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -70,21 +67,13 @@ tape( 'the function computes the hyperbolic tangent', opts, function test( t ) {

for ( i = 0; i < x.length; i++ ) {
y = tanh( x[i] );
if ( y === expected[ i ] ) {
t.strictEqual( y, expected[ i ], 'x: '+x[i]+'. Expected: '+expected[i] );
} else {
delta = abs( y - expected[i] );
tol = 1.7 * EPS * abs( expected[i] );
t.ok( delta <= tol, 'within tolerance. x: '+x[i]+'. Value: '+y+'. Expected: '+expected[i]+'. Tolerance: '+tol+'.' );
}
t.strictEqual( isAlmostSameValue( y, expected[ i ], 2 ), true, 'returns expected value' );
}
t.end();
});

tape( 'the function computes the hyperbolic tangent (tiny negative)', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -94,21 +83,13 @@ tape( 'the function computes the hyperbolic tangent (tiny negative)', opts, func

for ( i = 0; i < x.length; i++ ) {
y = tanh( 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]+'. Value: '+y+'. Expected: '+expected[i]+'. Tolerance: '+tol+'.' );
}
t.strictEqual( y, expected[ i ], 'returns expected value' );
}
t.end();
});

tape( 'the function computes the hyperbolic tangent (tiny positive)', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -118,21 +99,13 @@ tape( 'the function computes the hyperbolic tangent (tiny positive)', opts, func

for ( i = 0; i < x.length; i++ ) {
y = tanh( 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]+'. Value: '+y+'. Expected: '+expected[i]+'. Tolerance: '+tol+'.' );
}
t.strictEqual( y, expected[ i ], 'returns expected value' );
}
t.end();
});

tape( 'the function computes the hyperbolic tangent (large negative)', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -142,21 +115,13 @@ tape( 'the function computes the hyperbolic tangent (large negative)', opts, fun

for ( i = 0; i < x.length; i++ ) {
y = tanh( 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]+'. Value: '+y+'. Expected: '+expected[i]+'. Tolerance: '+tol+'.' );
}
t.strictEqual( y, expected[ i ], 'returns expected value' );
}
t.end();
});

tape( 'the function computes the hyperbolic tangent (large positive)', opts, function test( t ) {
var expected;
var delta;
var tol;
var x;
var y;
var i;
Expand All @@ -166,13 +131,7 @@ tape( 'the function computes the hyperbolic tangent (large positive)', opts, fun

for ( i = 0; i < x.length; i++ ) {
y = tanh( 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]+'. Value: '+y+'. Expected: '+expected[i]+'. Tolerance: '+tol+'.' );
}
t.strictEqual( y, expected[ i ], 'returns expected value' );
}
t.end();
});
Expand Down
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