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test: migrate stats/incr/nanmhmean to ULP-based assertions #15125

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Merged
kgryte merged 1 commit into from
Sep 10, 2026
Merged

test: migrate stats/incr/nanmhmean to ULP-based assertions #15125

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19 changes: 3 additions & 16 deletions lib/node_modules/@stdlib/stats/incr/nanmhmean/test/test.js
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Original file line number Diff line number Diff line change
Expand Up @@ -21,8 +21,7 @@
// MODULES //

var tape = require( 'tape' );
var abs = require( '@stdlib/math/base/special/abs' );
var EPSILON = require( '@stdlib/constants/float64/eps' );
var isAlmostSameValue = require( '@stdlib/assert/is-almost-same-value' );
var incrnanmhmean = require( './../lib' );


Expand Down Expand Up @@ -72,9 +71,7 @@ tape( 'the function returns an accumulator function', function test( t ) {
tape( 'the accumulator function computes a moving harmonic mean incrementally', function test( t ) {
var expected;
var actual;
var delta;
var data;
var tol;
var acc;
var N;
var i;
Expand All @@ -101,24 +98,16 @@ tape( 'the accumulator function computes a moving harmonic mean incrementally',
];

for ( i = 0; i < N; i++ ) {
if ( actual[ i ] === expected[ i ] ) {
t.strictEqual( actual[ i ], expected[ i ], 'returns expected value' );
} else {
delta = abs( expected[ i ] - actual[ i ] );
tol = EPSILON * abs( expected[ i ] );
t.equal( delta <= tol, true, 'within tolerance. Expected: '+expected[ i ]+'. Actual: '+actual[ i ]+'. Delta: '+delta+'. Tol: '+tol+'.' );
}
t.strictEqual( isAlmostSameValue( actual[ i ], expected[ i ], 1 ), true, 'returns expected value' );
}
t.end();
});

tape( 'if not provided an input value, the accumulator function returns the current harmonic mean', function test( t ) {
var expected;
var actual;
var delta;
var data;
var acc;
var tol;
var i;

data = [ 2.0, NaN, 3.0, NaN, 5.0 ];
Expand All @@ -128,9 +117,7 @@ tape( 'if not provided an input value, the accumulator function returns the curr
}
actual = acc();
expected = 3.75; // Note: computed by hand using textbook formula
delta = abs( expected - actual );
tol = 1.1 * EPSILON * abs( expected );
t.equal( delta <= tol, true, 'within tolerance. Expected: '+expected+'. Actual: '+actual+'. Delta: '+delta+'. Tol: '+tol+'.' );
t.strictEqual( isAlmostSameValue( actual, expected, 2 ), true, 'returns expected value' );
t.end();
});

Expand Down