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51 lines
855 B
51 lines
855 B
var assert = require('assert') |
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var UINT32 = require('..').UINT32 |
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describe('negate method', function () { |
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describe('0', function () { |
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it('should return 0', function (done) { |
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var u = UINT32(0).negate() |
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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('1', function () { |
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it('should return -1', function (done) { |
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var u = UINT32(1).negate() |
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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('low bit', function () { |
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it('should return -n', function (done) { |
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var u = UINT32(3).negate() |
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assert.equal( u.toNumber(), -3 ) |
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done() |
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}) |
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}) |
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describe('high bit', function () { |
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it('should return -n', function (done) { |
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var n = Math.pow(2, 17) |
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var u = UINT32(n).negate() |
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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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})
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