65 lines
1.1 KiB
JavaScript
65 lines
1.1 KiB
JavaScript
var assert = require('assert')
|
|
var UINT32 = require('..').UINT32
|
|
|
|
describe('xor method', function () {
|
|
|
|
describe('0^1', function () {
|
|
|
|
it('should return 1', function (done) {
|
|
var u = UINT32(0).xor( UINT32(1) )
|
|
|
|
assert.equal( u.toNumber(), 1 )
|
|
done()
|
|
})
|
|
|
|
})
|
|
|
|
describe('1^2', function () {
|
|
|
|
it('should return 3', function (done) {
|
|
var u = UINT32(1).xor( UINT32(2) )
|
|
|
|
assert.equal( u.toNumber(), 3 )
|
|
done()
|
|
})
|
|
|
|
})
|
|
|
|
describe('1^2^16', function () {
|
|
|
|
it('should return n+1', function (done) {
|
|
var n = Math.pow(2, 16)
|
|
var u = UINT32(1).xor( UINT32(n) )
|
|
|
|
assert.equal( u.toNumber(), n+1 )
|
|
done()
|
|
})
|
|
|
|
})
|
|
|
|
describe('2^16^1', function () {
|
|
|
|
it('should return n+1', function (done) {
|
|
var n = Math.pow(2, 16)
|
|
var u = UINT32(n).xor( UINT32(1) )
|
|
|
|
assert.equal( u.toNumber(), n+1 )
|
|
done()
|
|
})
|
|
|
|
})
|
|
|
|
describe('2^16^2^16', function () {
|
|
|
|
it('should return 0', function (done) {
|
|
var n = Math.pow(2, 16)
|
|
var u = UINT32(n).xor( UINT32(n) )
|
|
|
|
assert.equal( u.toNumber(), 0 )
|
|
done()
|
|
})
|
|
|
|
})
|
|
|
|
})
|