121 lines
2.2 KiB
JavaScript
121 lines
2.2 KiB
JavaScript
var assert = require('assert')
|
|
var UINT64 = require('..').UINT64
|
|
|
|
describe('add method', function () {
|
|
|
|
describe('0+0', function () {
|
|
|
|
it('should return 0', function (done) {
|
|
var u = UINT64(0).add( UINT64(0) )
|
|
|
|
assert.equal( u.toNumber(), 0 )
|
|
done()
|
|
})
|
|
|
|
})
|
|
|
|
describe('0+1', function () {
|
|
|
|
it('should return 1', function (done) {
|
|
var u = UINT64(0).add( UINT64(1) )
|
|
|
|
assert.equal( u.toNumber(), 1 )
|
|
done()
|
|
})
|
|
|
|
})
|
|
|
|
describe('1+0', function () {
|
|
|
|
it('should return 0', function (done) {
|
|
var u = UINT64(1).add( UINT64(0) )
|
|
|
|
assert.equal( u.toNumber(), 1 )
|
|
done()
|
|
})
|
|
|
|
})
|
|
|
|
describe('1+1', function () {
|
|
|
|
it('should return 2', function (done) {
|
|
var u = UINT64(1).add( UINT64(1) )
|
|
|
|
assert.equal( u.toNumber(), 2 )
|
|
done()
|
|
})
|
|
|
|
})
|
|
|
|
describe('low bit+high bit', function () {
|
|
|
|
it('should return n', function (done) {
|
|
var n = Math.pow(2, 17)
|
|
var u = UINT64(123).add( UINT64(n) )
|
|
|
|
assert.equal( u.toNumber(), 123 + n )
|
|
done()
|
|
})
|
|
|
|
})
|
|
|
|
describe('high bit+low bit', function () {
|
|
|
|
it('should return n', function (done) {
|
|
var n = Math.pow(2, 17)
|
|
var u = UINT64(n).add( UINT64(123) )
|
|
|
|
assert.equal( u.toNumber(), 123 + n )
|
|
done()
|
|
})
|
|
|
|
})
|
|
|
|
describe('high bit+high bit', function () {
|
|
|
|
it('should return n', function (done) {
|
|
var n = Math.pow(2, 17)
|
|
var u = UINT64(n).add( UINT64(n) )
|
|
|
|
assert.equal( u.toNumber(), n + n )
|
|
done()
|
|
})
|
|
|
|
})
|
|
|
|
describe('overflow', function () {
|
|
|
|
it('should return n', function (done) {
|
|
var n = 'FFFFFFFF'
|
|
var u = UINT64(n, 16).add( UINT64(n, 16) )
|
|
|
|
assert.equal( u.toNumber(), -2 )
|
|
done()
|
|
})
|
|
|
|
})
|
|
|
|
describe('high bit+high bit 2', function () {
|
|
|
|
it('should return n', function (done) {
|
|
var u = UINT64('326648991').add( UINT64('265443576') )
|
|
|
|
assert.equal( u.toNumber(), 592092567 )
|
|
done()
|
|
})
|
|
|
|
})
|
|
|
|
describe('high bit+high bit 3', function () {
|
|
|
|
it('should return n', function (done) {
|
|
var u = UINT64('800000000000', 16).add( UINT64('100000000000', 16) )
|
|
|
|
assert.equal( u.toString(16), '900000000000' )
|
|
done()
|
|
})
|
|
|
|
})
|
|
|
|
})
|