52 lines
904 B
JavaScript
52 lines
904 B
JavaScript
var assert = require('assert')
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var UINT64 = require('..').UINT64
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describe('rotateRight method', function () {
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describe('0rotr1', function () {
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it('should return 0', function (done) {
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var u = UINT64(0).rotateRight(1)
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assert.equal( u.toNumber(), 0 )
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done()
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})
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})
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describe('4rotr1', function () {
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it('should return 2', function (done) {
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var u = UINT64(4).rotateRight(1)
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assert.equal( u.toNumber(), 2 )
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done()
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})
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})
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describe('2^16rotr16', function () {
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it('should return 1', function (done) {
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var n = Math.pow(2, 16)
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var u = UINT64(n).rotateRight(16)
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assert.equal( u.toNumber(), 1 )
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done()
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})
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})
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describe('1rotr32', function () {
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it('should return 1', function (done) {
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var u = UINT64(1).rotateRight(32)
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assert.equal( u.toString(16), '100000000' )
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done()
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})
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})
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})
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