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51 lines
899 B
51 lines
899 B
var assert = require('assert') |
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var UINT64 = require('..').UINT64 |
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describe('rotateLeft method', function () { |
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describe('0rotl1', function () { |
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it('should return 0', function (done) { |
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var u = UINT64(0).rotateLeft(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('1rotl2', function () { |
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it('should return 4', function (done) { |
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var u = UINT64(1).rotateLeft(2) |
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assert.equal( u.toNumber(), 4 ) |
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done() |
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}) |
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}) |
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describe('1rotl16', function () { |
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it('should return 2^16', function (done) { |
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var n = Math.pow(2, 16) |
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var u = UINT64(1).rotateLeft(16) |
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assert.equal( u.toNumber(), n ) |
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done() |
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}) |
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}) |
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describe('1rotl32', function () { |
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it('should return 1', function (done) { |
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var u = UINT64(1).rotateLeft(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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