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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41 lines
985 B
41 lines
985 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 toFloat = require('../lib/bn-to-num')
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test('single word', function (t) {
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t.equal(toFloat(new bn(-1234567)), -1234567, 'negative')
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t.equal(toFloat(new bn(1234567)), 1234567, 'positive')
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t.end()
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})
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test('two words', function (t) {
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var v = 12345671234567
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t.equal(toFloat(new bn(v)), v, 'positive')
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t.equal(toFloat(new bn(-v)), -v, 'negative')
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t.end()
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})
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test('more words (positive)', function (t) {
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var n = new bn('1234567123456712345671234567', 10)
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var v = toFloat(n)
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t.equal(v, +n.toString(), 'positive')
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t.end()
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})
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test('more words (negative)', function (t) {
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var n = new bn('-1234567123456712345671234567', 10)
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var v = toFloat(n)
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t.equal(v, +n.toString(), 'negative')
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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.same(toFloat(y), x, x)
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t.same(toFloat(y.neg()), -x, -x)
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}
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t.end()
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})
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