StackGenVis: Alignment of Data, Algorithms, and Models for Stacking Ensemble Learning Using Performance Metrics
https://doi.org/10.1109/TVCG.2020.3030352
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33 lines
973 B
33 lines
973 B
4 years ago
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var test = require('tape')
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var bn = require('bn.js')
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var toBN = require('../lib/num-to-bn')
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test('simple cases', function(t) {
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t.equals(toBN(0).toString(), '0', 'zero')
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t.equals(toBN(-1234567).toString(), (new bn(-1234567)).toString(), 'negative')
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t.equals(toBN(1234567).toString(), (new bn(1234567)).toString(), 'positive')
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t.end()
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})
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test('powers of 2', function(t) {
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for(var i=0; i<1024; ++i) {
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var x = Math.pow(2, i)
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var y = (new bn(1)).ushln(i)
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t.equals(toBN(x).toString(), y.toString())
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t.equals(toBN(-x).toString(), y.neg().toString())
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}
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t.end()
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})
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test('powers of 2 with 2 bits set', function(t) {
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for(var i=52; i<1024; ++i) {
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for(var j=1; j<53; ++j) {
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var x = Math.pow(2, i) + Math.pow(2, i-j)
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var y = (new bn(1)).ushln(i).add((new bn(1)).ushln(i-j))
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t.equals(toBN(x).toString(), y.toString(), y.toString())
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t.equals(toBN(-x).toString(), y.neg().toString(), y.neg().toString())
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}
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}
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t.end()
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})
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