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50 lines
1.4 KiB
50 lines
1.4 KiB
if (typeof T === 'undefined') require('../setup');
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(function () {
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T('fromJSON');
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Decimal.config({
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//crypto: true,
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precision: Math.random() * 40 + 1 | 0,
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rounding: Math.random() * 9 | 0,
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toExpNeg: -7,
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toExpPos: 21,
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minE: -9e15,
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maxE: 9e15
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});
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var e, fromJ, i, r, toJ;
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var maxDigits = 100;
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for ( i = 0; i < 100000; ) {
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// Get a random value in the range [0,1) with a random number of significant digits
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// in the range [1, maxDigits], as a string in exponential format.
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e = Decimal.random( Math.random() * maxDigits + 1 | 0 ).toExponential();
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// Change exponent to a non-zero value of random length in the range (-9e15, 9e15).
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r = new Decimal(e.slice(0, e.indexOf('e') + 1) + ( Math.random() < 0.5 ? '-' : '' ) +
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( n = Math.floor( Math.random() * 9e15 ) + '' ).slice( Math.random() * n.length | 0 ));
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//( n = Math.floor( Math.random() * 40 ) + '' ).slice( Math.random() * n.length | 0 ));
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//console.log(r.toString());
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toJ = r.toJSON();
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//console.log(' toJ: ' + toJ);
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fromJ = Decimal.fromJSON(toJ);
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//console.log(' fromJ: ' + fromJ);
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/*
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if (!r.eq(fromJ)) {
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console.error(' r: ' + r);
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console.error(' toJ: ' + toJ);
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console.error(' fromJ: ' + fromJ);
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}
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*/
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T.assert(r.eq(fromJ));
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}
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T.stop();
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})();
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