UINT32_not-test.js 794 B

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  1. var assert = require('assert')
  2. var UINT32 = require('..').UINT32
  3. describe('not method', function () {
  4. describe('0', function () {
  5. it('should return 2^32-1', function (done) {
  6. var u = UINT32(0).not()
  7. assert.equal( u.toString(16), 'ffffffff' )
  8. done()
  9. })
  10. })
  11. describe('1', function () {
  12. it('should return 2^32-2', function (done) {
  13. var u = UINT32(1).not()
  14. assert.equal( u.toString(16), 'fffffffe' )
  15. done()
  16. })
  17. })
  18. describe('2^31', function() {
  19. var u = UINT32(0x7FFFFFFF).not()
  20. assert.equal( u.toString(16), '80000000')
  21. })
  22. describe('all bits set', function () {
  23. it('should return 0', function (done) {
  24. var u = UINT32(0xFFFFFFFF).not()
  25. assert.equal( u.toNumber(), 0 )
  26. done()
  27. })
  28. })
  29. })