aaac7fed
 liuqimichale
add
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var assert = require('assert')
var UINT64 = require('..').UINT64
describe('multiply method', function () {
describe('0*0', function () {
it('should return 0', function (done) {
var u = UINT64(0).multiply( UINT64(0) )
assert.equal( u.toNumber(), 0 )
done()
})
})
describe('1*0', function () {
it('should return 0', function (done) {
var u = UINT64(1).multiply( UINT64(0) )
assert.equal( u.toNumber(), 0 )
done()
})
})
describe('0*1', function () {
it('should return 0', function (done) {
var u = UINT64(0).multiply( UINT64(1) )
assert.equal( u.toNumber(), 0 )
done()
})
})
describe('low bit*high bit', function () {
it('should return n', function (done) {
var n = Math.pow(2, 17)
var u = UINT64(3).multiply( UINT64(n) )
assert.equal( u.toNumber(), 3*n )
done()
})
})
describe('high bit*low bit', function () {
it('should return n', function (done) {
var n = Math.pow(2, 17)
var u = UINT64(n).multiply( UINT64(3) )
assert.equal( u.toNumber(), 3*n )
done()
})
})
describe('high bit*high bit', function () {
it('should return n', function (done) {
var n = 'FFFFFFFF'
var u = UINT64(n, 16).multiply( UINT64(n, 16) )
assert.equal( u.toNumber(), 1 )
done()
})
})
})
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