system_assignation/node_modules/cuint/test/UINT64_rotateRight-test.js

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2022-03-24 09:22:39 -04:00
var assert = require('assert')
var UINT64 = require('..').UINT64
describe('rotateRight method', function () {
describe('0rotr1', function () {
it('should return 0', function (done) {
var u = UINT64(0).rotateRight(1)
assert.equal( u.toNumber(), 0 )
done()
})
})
describe('4rotr1', function () {
it('should return 2', function (done) {
var u = UINT64(4).rotateRight(1)
assert.equal( u.toNumber(), 2 )
done()
})
})
describe('2^16rotr16', function () {
it('should return 1', function (done) {
var n = Math.pow(2, 16)
var u = UINT64(n).rotateRight(16)
assert.equal( u.toNumber(), 1 )
done()
})
})
describe('1rotr32', function () {
it('should return 1', function (done) {
var u = UINT64(1).rotateRight(32)
assert.equal( u.toString(16), '100000000' )
done()
})
})
})