lepu-test-platform-web/node_modules/cuint/test/UINT32_multiply-test.js

76 lines
1.4 KiB
JavaScript

var assert = require('assert')
var UINT32 = require('..').UINT32
describe('multiply method', function () {
describe('0*0', function () {
it('should return 0', function (done) {
var u = UINT32(0).multiply( UINT32(0) )
assert.equal( u.toNumber(), 0 )
done()
})
})
describe('1*0', function () {
it('should return 0', function (done) {
var u = UINT32(1).multiply( UINT32(0) )
assert.equal( u.toNumber(), 0 )
done()
})
})
describe('0*1', function () {
it('should return 0', function (done) {
var u = UINT32(0).multiply( UINT32(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 = UINT32(3).multiply( UINT32(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 = UINT32(n).multiply( UINT32(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 = UINT32(n, 16).multiply( UINT32(n, 16) )
assert.equal( u.toNumber(), 1 )
done()
})
})
})