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decimal128_tests.js
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'use strict';
const BSON = require('../register-bson');
const Decimal128 = BSON.Decimal128;
var NAN = Buffer.from(
[
0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
].reverse()
);
var INF_NEGATIVE_BUFFER = Buffer.from(
[
0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
].reverse()
);
var INF_POSITIVE_BUFFER = Buffer.from(
[
0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
].reverse()
);
describe('Decimal128', function () {
/**
* @ignore
*/
it('fromString invalid input', function (done) {
expect(function () {
Decimal128.fromString('E02');
}).to.throw;
expect(function () {
Decimal128.fromString('E+02');
}).to.throw;
expect(function () {
Decimal128.fromString('e+02');
}).to.throw;
expect(function () {
Decimal128.fromString('.');
}).to.throw;
expect(function () {
Decimal128.fromString('.e');
}).to.throw;
expect(function () {
Decimal128.fromString('');
}).to.throw;
expect(function () {
Decimal128.fromString('invalid');
}).to.throw;
expect(function () {
Decimal128.fromString('in');
}).to.throw;
expect(function () {
Decimal128.fromString('i');
}).to.throw;
expect(function () {
Decimal128.fromString('..1');
}).to.throw;
expect(function () {
Decimal128.fromString('1abcede');
}).to.throw;
expect(function () {
Decimal128.fromString('1.24abc');
}).to.throw;
expect(function () {
Decimal128.fromString('1.24abcE+02');
}).to.throw;
expect(function () {
Decimal128.fromString('1.24E+02abc2d');
}).to.throw;
done();
});
it('fromString NaN input', function (done) {
var result = Decimal128.fromString('NaN');
expect(NAN).to.deep.equal(result.bytes);
result = Decimal128.fromString('+NaN');
expect(NAN).to.deep.equal(result.bytes);
result = Decimal128.fromString('-NaN');
expect(NAN).to.deep.equal(result.bytes);
result = Decimal128.fromString('-nan');
expect(NAN).to.deep.equal(result.bytes);
result = Decimal128.fromString('+nan');
expect(NAN).to.deep.equal(result.bytes);
result = Decimal128.fromString('nan');
expect(NAN).to.deep.equal(result.bytes);
result = Decimal128.fromString('Nan');
expect(NAN).to.deep.equal(result.bytes);
result = Decimal128.fromString('+Nan');
expect(NAN).to.deep.equal(result.bytes);
result = Decimal128.fromString('-Nan');
expect(NAN).to.deep.equal(result.bytes);
done();
});
it('fromString infinity input', function (done) {
var result = Decimal128.fromString('Infinity');
expect(INF_POSITIVE_BUFFER).to.deep.equal(result.bytes);
result = Decimal128.fromString('+Infinity');
expect(INF_POSITIVE_BUFFER).to.deep.equal(result.bytes);
result = Decimal128.fromString('+Inf');
expect(INF_POSITIVE_BUFFER).to.deep.equal(result.bytes);
result = Decimal128.fromString('-Inf');
expect(INF_NEGATIVE_BUFFER).to.deep.equal(result.bytes);
result = Decimal128.fromString('-Infinity');
expect(INF_NEGATIVE_BUFFER).to.deep.equal(result.bytes);
done();
});
it('fromString simple', function (done) {
// Create decimal from string value 1
var result = Decimal128.fromString('1');
var bytes = Buffer.from(
[
0x30, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 0
result = Decimal128.fromString('0');
bytes = Buffer.from(
[
0x30, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value -0
result = Decimal128.fromString('-0');
bytes = Buffer.from(
[
0xb0, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value -1
result = Decimal128.fromString('-1');
bytes = Buffer.from(
[
0xb0, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 12345678901234567
result = Decimal128.fromString('12345678901234567');
bytes = Buffer.from(
[
0x30, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2b, 0xdc, 0x54, 0x5d, 0x6b, 0x4b,
0x87
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 989898983458
result = Decimal128.fromString('989898983458');
bytes = Buffer.from(
[
0x30, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe6, 0x7a, 0x93, 0xc8,
0x22
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value -12345678901234567
result = Decimal128.fromString('-12345678901234567');
bytes = Buffer.from(
[
0xb0, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2b, 0xdc, 0x54, 0x5d, 0x6b, 0x4b,
0x87
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 0.12345
result = Decimal128.fromString('0.12345');
bytes = Buffer.from(
[
0x30, 0x36, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x39
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 0.0012345
result = Decimal128.fromString('0.0012345');
bytes = Buffer.from(
[
0x30, 0x32, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30,
0x39
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 00012345678901234567
result = Decimal128.fromString('00012345678901234567');
bytes = Buffer.from(
[
0x30, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2b, 0xdc, 0x54, 0x5d, 0x6b, 0x4b,
0x87
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
done();
});
it('fromString scientific format', function (done) {
// Create decimal from string value 10e0
var result = Decimal128.fromString('10e0');
var bytes = Buffer.from(
[
0x30, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x0a
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 1e1
result = Decimal128.fromString('1e1');
bytes = Buffer.from(
[
0x30, 0x42, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 10e-1
result = Decimal128.fromString('10e-1');
bytes = Buffer.from(
[
0x30, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x0a
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 12345678901234567e6111
result = Decimal128.fromString('12345678901234567e6111');
bytes = Buffer.from(
[
0x5f, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x2b, 0xdc, 0x54, 0x5d, 0x6b, 0x4b,
0x87
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 1e-6176
result = Decimal128.fromString('1e-6176');
bytes = Buffer.from(
[
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value "-100E-10
result = Decimal128.fromString('-100E-10');
bytes = Buffer.from(
[
0xb0, 0x2c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x64
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 10.50E8
result = Decimal128.fromString('10.50E8');
bytes = Buffer.from(
[
0x30, 0x4c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
0x1a
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
done();
});
it('fromString large format', function (done) {
// Create decimal from string value 12345689012345789012345
var result = Decimal128.fromString('12345689012345789012345');
var bytes = Buffer.from(
[
0x30, 0x40, 0x00, 0x00, 0x00, 0x00, 0x02, 0x9d, 0x42, 0xda, 0x3a, 0x76, 0xf9, 0xe0, 0xd9,
0x79
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 1234567890123456789012345678901234
result = Decimal128.fromString('1234567890123456789012345678901234');
bytes = Buffer.from(
[
0x30, 0x40, 0x3c, 0xde, 0x6f, 0xff, 0x97, 0x32, 0xde, 0x82, 0x5c, 0xd0, 0x7e, 0x96, 0xaf,
0xf2
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 9.999999999999999999999999999999999E+6144
result = Decimal128.fromString('9.999999999999999999999999999999999E+6144');
bytes = Buffer.from(
[
0x5f, 0xff, 0xed, 0x09, 0xbe, 0xad, 0x87, 0xc0, 0x37, 0x8d, 0x8e, 0x63, 0xff, 0xff, 0xff,
0xff
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 9.999999999999999999999999999999999E-6143
result = Decimal128.fromString('9.999999999999999999999999999999999E-6143');
bytes = Buffer.from(
[
0x00, 0x01, 0xed, 0x09, 0xbe, 0xad, 0x87, 0xc0, 0x37, 0x8d, 0x8e, 0x63, 0xff, 0xff, 0xff,
0xff
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 5.192296858534827628530496329220095E+33
result = Decimal128.fromString('5.192296858534827628530496329220095E+33');
bytes = Buffer.from(
[
0x30, 0x40, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
0xff
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
done();
});
it('fromString exponent normalization', function (done) {
// Create decimal from string value 1000000000000000000000000000000000000000
result = Decimal128.fromString('1000000000000000000000000000000000000000');
bytes = Buffer.from(
[
0x30, 0x4c, 0x31, 0x4d, 0xc6, 0x44, 0x8d, 0x93, 0x38, 0xc1, 0x5b, 0x0a, 0x00, 0x00, 0x00,
0x00
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 10000000000000000000000000000000000
result = Decimal128.fromString('10000000000000000000000000000000000');
bytes = Buffer.from(
[
0x30, 0x42, 0x31, 0x4d, 0xc6, 0x44, 0x8d, 0x93, 0x38, 0xc1, 0x5b, 0x0a, 0x00, 0x00, 0x00,
0x00
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 1000000000000000000000000000000000
result = Decimal128.fromString('1000000000000000000000000000000000');
bytes = Buffer.from(
[
0x30, 0x40, 0x31, 0x4d, 0xc6, 0x44, 0x8d, 0x93, 0x38, 0xc1, 0x5b, 0x0a, 0x00, 0x00, 0x00,
0x00
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
var str =
'100000000000000000000000000000000000000000000000000000000000000000000' +
'000000000000000000000000000000000000000000000000000000000000000000000' +
'000000000000000000000000000000000000000000000000000000000000000000000' +
'000000000000000000000000000000000000000000000000000000000000000000000' +
'000000000000000000000000000000000000000000000000000000000000000000000' +
'000000000000000000000000000000000000000000000000000000000000000000000' +
'000000000000000000000000000000000000000000000000000000000000000000000' +
'000000000000000000000000000000000000000000000000000000000000000000000' +
'000000000000000000000000000000000000000000000000000000000000000000000' +
'000000000000000000000000000000000000000000000000000000000000000000000' +
'000000000000000000000000000000000000000000000000000000000000000000000' +
'000000000000000000000000000000000000000000000000000000000000000000000' +
'000000000000000000000000000000000000000000000000000000000000000000000' +
'000000000000000000000000000000000000000000000000000000000000000000000' +
'0000000000000000000000000000000000';
// Create decimal from string value str
var result = Decimal128.fromString(str);
var bytes = Buffer.from(
[
0x37, 0xcc, 0x31, 0x4d, 0xc6, 0x44, 0x8d, 0x93, 0x38, 0xc1, 0x5b, 0x0a, 0x00, 0x00, 0x00,
0x00
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// this should throw error according to spec.
// Create decimal from string value 1E-6177
// var result = Decimal128.fromString('1E-6177');
// var bytes = Buffer.from(
// [
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00
// ].reverse()
// );
// expect(bytes).to.deep.equal(result.bytes);
done();
});
it('fromString from string zeros', function (done) {
// Create decimal from string value 0
var result = Decimal128.fromString('0');
var bytes = Buffer.from(
[
0x30, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 0e-611
result = Decimal128.fromString('0e-611');
bytes = Buffer.from(
[
0x2b, 0x7a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 0e+6000
result = Decimal128.fromString('0e+6000');
bytes = Buffer.from(
[
0x5f, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
// Create decimal from string value 1E-6177
result = Decimal128.fromString('-0e-1');
bytes = Buffer.from(
[
0xb0, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
done();
});
it('fromString from string round', function (done) {
// Create decimal from string value 10E-6177
var result = Decimal128.fromString('10E-6177');
var bytes = Buffer.from(
[
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01
].reverse()
);
expect(bytes).to.deep.equal(result.bytes);
result = Decimal128.fromString('37.499999999999999196428571428571375');
expect(result.toString()).to.deep.equal('37.49999999999999919642857142857138');
// // Create decimal from string value 15E-6177
// result = Decimal128.fromString('15E-6177');
// bytes = Buffer.from(
// [
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x02
// ].reverse()
// );
// expect(bytes).to.deep.equal(result.bytes);
// // var array = new Array(6179);
// // for(var i = 0; i < array.length; i++) array[i] = '0';
// // array[1] = '.';
// // array[6177] = '1';
// // array[6178] = '5';
// // // Create decimal from string value array
// // result = Decimal128.fromString(array.join(''));
// // bytes = Buffer.from([0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
// // , 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02].reverse());
// // expect(bytes).to.deep.equal(result.bytes);
// // Create decimal from string value 251E-6178
// result = Decimal128.fromString('251E-6178');
// bytes = Buffer.from(
// [
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x03
// ].reverse()
// );
// expect(bytes).to.deep.equal(result.bytes);
// // Create decimal from string value 250E-6178
// result = Decimal128.fromString('250E-6178');
// bytes = Buffer.from(
// [
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x02
// ].reverse()
// );
// expect(bytes).to.deep.equal(result.bytes);
// // Create decimal from string value 10000000000000000000000000000000006
// result = Decimal128.fromString('10000000000000000000000000000000006');
// bytes = Buffer.from(
// [
// 0x30,
// 0x42,
// 0x31,
// 0x4d,
// 0xc6,
// 0x44,
// 0x8d,
// 0x93,
// 0x38,
// 0xc1,
// 0x5b,
// 0x0a,
// 0x00,
// 0x00,
// 0x00,
// 0x01
// ].reverse()
// );
// expect(bytes).to.deep.equal(result.bytes);
// // Create decimal from string value 10000000000000000000000000000000003
// result = Decimal128.fromString('10000000000000000000000000000000003');
// bytes = Buffer.from(
// [
// 0x30,
// 0x42,
// 0x31,
// 0x4d,
// 0xc6,
// 0x44,
// 0x8d,
// 0x93,
// 0x38,
// 0xc1,
// 0x5b,
// 0x0a,
// 0x00,
// 0x00,
// 0x00,
// 0x00
// ].reverse()
// );
// expect(bytes).to.deep.equal(result.bytes);
// // Create decimal from string value 10000000000000000000000000000000005
// result = Decimal128.fromString('10000000000000000000000000000000005');
// bytes = Buffer.from(
// [
// 0x30,
// 0x42,
// 0x31,
// 0x4d,
// 0xc6,
// 0x44,
// 0x8d,
// 0x93,
// 0x38,
// 0xc1,
// 0x5b,
// 0x0a,
// 0x00,
// 0x00,
// 0x00,
// 0x00
// ].reverse()
// );
// expect(bytes).to.deep.equal(result.bytes);
// // Create decimal from string value 100000000000000000000000000000000051
// result = Decimal128.fromString('100000000000000000000000000000000051');
// bytes = Buffer.from(
// [
// 0x30,
// 0x44,
// 0x31,
// 0x4d,
// 0xc6,
// 0x44,
// 0x8d,
// 0x93,
// 0x38,
// 0xc1,
// 0x5b,
// 0x0a,
// 0x00,
// 0x00,
// 0x00,
// 0x01
// ].reverse()
// );
// expect(bytes).to.deep.equal(result.bytes);
// // Create decimal from string value 10000000000000000000000000000000006E6111
// result = Decimal128.fromString('10000000000000000000000000000000006E6111');
// bytes = Buffer.from(
// [
// 0x78,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00
// ].reverse()
// );
// expect(bytes).to.deep.equal(result.bytes);
// // Create decimal from string value 12980742146337069071326240823050239
// result = Decimal128.fromString('12980742146337069071326240823050239');
// bytes = Buffer.from(
// [
// 0x30,
// 0x42,
// 0x40,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00
// ].reverse()
// );
// expect(bytes).to.deep.equal(result.bytes);
// // Create decimal from string value 99999999999999999999999999999999999
// result = Decimal128.fromString('99999999999999999999999999999999999');
// bytes = Buffer.from(
// [
// 0x30,
// 0x44,
// 0x31,
// 0x4d,
// 0xc6,
// 0x44,
// 0x8d,
// 0x93,
// 0x38,
// 0xc1,
// 0x5b,
// 0x0a,
// 0x00,
// 0x00,
// 0x00,
// 0x00
// ].reverse()
// );
// expect(bytes).to.deep.equal(result.bytes);
// // Create decimal from string value 9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999
// result = Decimal128.fromString(
// '9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999'
// );
// bytes = Buffer.from(
// [
// 0x30,
// 0xc6,
// 0x31,
// 0x4d,
// 0xc6,
// 0x44,
// 0x8d,
// 0x93,
// 0x38,
// 0xc1,
// 0x5b,
// 0x0a,
// 0x00,
// 0x00,
// 0x00,
// 0x00
// ].reverse()
// );
// expect(bytes).to.deep.equal(result.bytes);
// // Create decimal from string value 9999999999999999999999999999999999E6111
// result = Decimal128.fromString('9999999999999999999999999999999999E6111');
// bytes = Buffer.from(
// [
// 0x5f,
// 0xff,
// 0xed,
// 0x09,
// 0xbe,
// 0xad,
// 0x87,
// 0xc0,
// 0x37,
// 0x8d,
// 0x8e,
// 0x63,
// 0xff,
// 0xff,
// 0xff,
// 0xff
// ].reverse()
// );
// expect(bytes).to.deep.equal(result.bytes);
// // Create decimal from string value 99999999999999999999999999999999999E6144
// result = Decimal128.fromString('99999999999999999999999999999999999E6144');
// bytes = Buffer.from(
// [
// 0x78,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00,
// 0x00
// ].reverse()
// );
// expect(bytes).to.deep.equal(result.bytes);
done();
});
it('toString infinity', function (done) {
var decimal = new Decimal128(
Buffer.from(
[
0x78, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00
].reverse()
)
);
expect('Infinity').to.equal(decimal.toString());
decimal = new Decimal128(
Buffer.from(
[
0xf8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00
].reverse()
)
);
expect('-Infinity').to.equal(decimal.toString());
done();
});
it('toString NaN', function (done) {
var decimal = new Decimal128(
Buffer.from(
[
0x7c, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00
].reverse()
)
);
expect('NaN').to.equal(decimal.toString());
decimal = new Decimal128(
Buffer.from(
[
0xfc, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00
].reverse()
)
);
expect('NaN').to.equal(decimal.toString());
decimal = new Decimal128(
Buffer.from(
[
0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00
].reverse()
)
);
expect('NaN').to.equal(decimal.toString());
decimal = new Decimal128(
Buffer.from(
[
0xfe, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00
].reverse()
)
);
expect('NaN').to.equal(decimal.toString());
decimal = new Decimal128(
Buffer.from(
[
0x7e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x12
].reverse()
)
);
expect('NaN').to.equal(decimal.toString());
done();
});
it('toString regular', function (done) {
var decimal = new Decimal128(
Buffer.from(
[
0x30, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01
].reverse()
)
);
expect('1').to.equal(decimal.toString());
decimal = new Decimal128(
Buffer.from(
[
0x30, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00
].reverse()
)
);
expect('0').to.equal(decimal.toString());
decimal = new Decimal128(
Buffer.from(
[
0x30, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x02
].reverse()
)
);
expect('2').to.equal(decimal.toString());
decimal = new Decimal128(
Buffer.from(
[
0xb0, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01
].reverse()
)
);
expect('-1').to.equal(decimal.toString());
decimal = new Decimal128(
Buffer.from(
[
0xb0, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00
].reverse()
)
);
expect('-0').to.equal(decimal.toString());
decimal = new Decimal128(
Buffer.from(
[
0x30, 0x3e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01
].reverse()
)
);
expect('0.1').to.equal(decimal.toString());
decimal = new Decimal128(
Buffer.from(
[
0x30, 0x34, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04,
0xd2
].reverse()
)
);
expect('0.001234').to.equal(decimal.toString());
decimal = new Decimal128(
Buffer.from(
[
0x30, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x1c, 0xbe, 0x99, 0x1a,
0x14
].reverse()
)
);
expect('123456789012').to.equal(decimal.toString());
decimal = new Decimal128(
Buffer.from(
[
0x30, 0x2a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x5a, 0xef,
0x40
].reverse()
)
);
expect('0.00123400000').to.equal(decimal.toString());
decimal = new Decimal128(
Buffer.from(
[
0x2f, 0xfc, 0x3c, 0xde, 0x6f, 0xff, 0x97, 0x32, 0xde, 0x82, 0x5c, 0xd0, 0x7e, 0x96, 0xaf,
0xf2
].reverse()
)
);
expect('0.1234567890123456789012345678901234').to.equal(decimal.toString());
done();
});
it('toString scientific', function (done) {
var decimal = new Decimal128(
Buffer.from(
[
0x5f, 0xfe, 0x31, 0x4d, 0xc6, 0x44, 0x8d, 0x93, 0x38, 0xc1, 0x5b, 0x0a, 0x00, 0x00, 0x00,
0x00
].reverse()
)
);
expect('1.000000000000000000000000000000000E+6144').to.equal(decimal.toString());