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test: add special value tests for log1pmx #9491

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7f3e63a
test: add special value tests for log1pmx
ashish-066 Jan 2, 2026
d889fdd
test(log1pmx): add spacing between test blocks
ashish-066 Jan 2, 2026
71c2ab6
test: add infinite value tests for xlog1py
ashish-066 Jan 3, 2026
6d77580
Revert "test: add infinite value tests for xlog1py"
ashish-066 Jan 3, 2026
d8a16e4
test(log1pmx): align special value tests with stdlib conventions
ashish-066 Jan 3, 2026
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17 changes: 17 additions & 0 deletions lib/node_modules/@stdlib/math/base/special/log1pmx/test/test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,8 @@ var log1p = require( '@stdlib/math/base/special/log1p' );
var abs = require( '@stdlib/math/base/special/abs' );
var pow = require( '@stdlib/math/base/special/pow' );
var ln = require( '@stdlib/math/base/special/ln' );
var PINF = require( '@stdlib/constants/float64/pinf' );
var NINF = require( '@stdlib/constants/float64/ninf' );
var log1pmx = require( './../lib' );


Expand Down Expand Up @@ -88,3 +90,18 @@ tape( 'the function returns a Taylor series expansion otherwise', function test(
}
t.end();
});

tape( 'the function handles special values', function test( t ) {
var v;

v = log1pmx( NaN );
t.strictEqual( isnan( v ), true, 'returns expected value' );

v = log1pmx( PINF );
t.strictEqual( isnan( v ), true, 'returns expected value' );

v = log1pmx( NINF );
t.strictEqual( isnan( v ), true, 'returns expected value' );

t.end();
});