1 |
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2 |
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3 | 'use strict'
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4 |
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5 | var test = require('tape')
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6 |
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7 | var buffer = require('buffer')
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8 |
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9 | var index = require('./')
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10 | var safer = require('./safer')
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11 | var dangerous = require('./dangerous')
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12 |
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13 |
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14 |
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15 | test('Default is Safer', function (t) {
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16 | t.equal(index, safer)
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17 | t.notEqual(safer, dangerous)
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18 | t.notEqual(index, dangerous)
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19 | t.end()
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20 | })
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21 |
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22 | test('Is not a function', function (t) {
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23 | [index, safer, dangerous].forEach(function (impl) {
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24 | t.equal(typeof impl, 'object')
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25 | t.equal(typeof impl.Buffer, 'object')
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26 | });
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27 | [buffer].forEach(function (impl) {
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28 | t.equal(typeof impl, 'object')
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29 | t.equal(typeof impl.Buffer, 'function')
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30 | })
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31 | t.end()
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32 | })
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33 |
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34 | test('Constructor throws', function (t) {
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35 | [index, safer, dangerous].forEach(function (impl) {
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36 | t.throws(function () { impl.Buffer() })
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37 | t.throws(function () { impl.Buffer(0) })
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38 | t.throws(function () { impl.Buffer('a') })
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39 | t.throws(function () { impl.Buffer('a', 'utf-8') })
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40 | t.throws(function () { return new impl.Buffer() })
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41 | t.throws(function () { return new impl.Buffer(0) })
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42 | t.throws(function () { return new impl.Buffer('a') })
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43 | t.throws(function () { return new impl.Buffer('a', 'utf-8') })
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44 | })
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45 | t.end()
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46 | })
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47 |
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48 | test('Safe methods exist', function (t) {
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49 | [index, safer, dangerous].forEach(function (impl) {
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50 | t.equal(typeof impl.Buffer.alloc, 'function', 'alloc')
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51 | t.equal(typeof impl.Buffer.from, 'function', 'from')
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52 | })
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53 | t.end()
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54 | })
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55 |
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56 | test('Unsafe methods exist only in Dangerous', function (t) {
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57 | [index, safer].forEach(function (impl) {
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58 | t.equal(typeof impl.Buffer.allocUnsafe, 'undefined')
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59 | t.equal(typeof impl.Buffer.allocUnsafeSlow, 'undefined')
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60 | });
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61 | [dangerous].forEach(function (impl) {
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62 | t.equal(typeof impl.Buffer.allocUnsafe, 'function')
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63 | t.equal(typeof impl.Buffer.allocUnsafeSlow, 'function')
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64 | })
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65 | t.end()
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66 | })
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67 |
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68 | test('Generic methods/properties are defined and equal', function (t) {
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69 | ['poolSize', 'isBuffer', 'concat', 'byteLength'].forEach(function (method) {
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70 | [index, safer, dangerous].forEach(function (impl) {
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71 | t.equal(impl.Buffer[method], buffer.Buffer[method], method)
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72 | t.notEqual(typeof impl.Buffer[method], 'undefined', method)
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73 | })
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74 | })
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75 | t.end()
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76 | })
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77 |
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78 | test('Built-in buffer static methods/properties are inherited', function (t) {
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79 | Object.keys(buffer).forEach(function (method) {
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80 | if (method === 'SlowBuffer' || method === 'Buffer') return;
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81 | [index, safer, dangerous].forEach(function (impl) {
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82 | t.equal(impl[method], buffer[method], method)
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83 | t.notEqual(typeof impl[method], 'undefined', method)
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84 | })
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85 | })
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86 | t.end()
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87 | })
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88 |
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89 | test('Built-in Buffer static methods/properties are inherited', function (t) {
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90 | Object.keys(buffer.Buffer).forEach(function (method) {
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91 | if (method === 'allocUnsafe' || method === 'allocUnsafeSlow') return;
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92 | [index, safer, dangerous].forEach(function (impl) {
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93 | t.equal(impl.Buffer[method], buffer.Buffer[method], method)
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94 | t.notEqual(typeof impl.Buffer[method], 'undefined', method)
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95 | })
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96 | })
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97 | t.end()
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98 | })
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99 |
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100 | test('.prototype property of Buffer is inherited', function (t) {
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101 | [index, safer, dangerous].forEach(function (impl) {
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102 | t.equal(impl.Buffer.prototype, buffer.Buffer.prototype, 'prototype')
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103 | t.notEqual(typeof impl.Buffer.prototype, 'undefined', 'prototype')
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104 | })
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105 | t.end()
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106 | })
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107 |
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108 | test('All Safer methods are present in Dangerous', function (t) {
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109 | Object.keys(safer).forEach(function (method) {
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110 | if (method === 'Buffer') return;
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111 | [index, safer, dangerous].forEach(function (impl) {
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112 | t.equal(impl[method], safer[method], method)
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113 | if (method !== 'kStringMaxLength') {
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114 | t.notEqual(typeof impl[method], 'undefined', method)
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115 | }
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116 | })
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117 | })
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118 | Object.keys(safer.Buffer).forEach(function (method) {
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119 | [index, safer, dangerous].forEach(function (impl) {
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120 | t.equal(impl.Buffer[method], safer.Buffer[method], method)
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121 | t.notEqual(typeof impl.Buffer[method], 'undefined', method)
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122 | })
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123 | })
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124 | t.end()
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125 | })
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126 |
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127 | test('Safe methods from Dangerous methods are present in Safer', function (t) {
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128 | Object.keys(dangerous).forEach(function (method) {
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129 | if (method === 'Buffer') return;
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130 | [index, safer, dangerous].forEach(function (impl) {
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131 | t.equal(impl[method], dangerous[method], method)
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132 | if (method !== 'kStringMaxLength') {
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133 | t.notEqual(typeof impl[method], 'undefined', method)
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134 | }
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135 | })
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136 | })
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137 | Object.keys(dangerous.Buffer).forEach(function (method) {
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138 | if (method === 'allocUnsafe' || method === 'allocUnsafeSlow') return;
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139 | [index, safer, dangerous].forEach(function (impl) {
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140 | t.equal(impl.Buffer[method], dangerous.Buffer[method], method)
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141 | t.notEqual(typeof impl.Buffer[method], 'undefined', method)
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142 | })
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143 | })
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144 | t.end()
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145 | })
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146 |
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147 |
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148 |
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149 | test('Methods return Buffers', function (t) {
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150 | [index, safer, dangerous].forEach(function (impl) {
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151 | t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0)))
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152 | t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0, 10)))
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153 | t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0, 'a')))
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154 | t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(10)))
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155 | t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(10, 'x')))
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156 | t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(9, 'ab')))
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157 | t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('')))
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158 | t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('string')))
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159 | t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('string', 'utf-8')))
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160 | t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64')))
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161 | t.ok(buffer.Buffer.isBuffer(impl.Buffer.from([0, 42, 3])))
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162 | t.ok(buffer.Buffer.isBuffer(impl.Buffer.from(new Uint8Array([0, 42, 3]))))
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163 | t.ok(buffer.Buffer.isBuffer(impl.Buffer.from([])))
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164 | });
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165 | ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
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166 | t.ok(buffer.Buffer.isBuffer(dangerous.Buffer[method](0)))
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167 | t.ok(buffer.Buffer.isBuffer(dangerous.Buffer[method](10)))
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168 | })
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169 | t.end()
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170 | })
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171 |
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172 | test('Constructor is buffer.Buffer', function (t) {
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173 | [index, safer, dangerous].forEach(function (impl) {
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174 | t.equal(impl.Buffer.alloc(0).constructor, buffer.Buffer)
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175 | t.equal(impl.Buffer.alloc(0, 10).constructor, buffer.Buffer)
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176 | t.equal(impl.Buffer.alloc(0, 'a').constructor, buffer.Buffer)
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177 | t.equal(impl.Buffer.alloc(10).constructor, buffer.Buffer)
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178 | t.equal(impl.Buffer.alloc(10, 'x').constructor, buffer.Buffer)
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179 | t.equal(impl.Buffer.alloc(9, 'ab').constructor, buffer.Buffer)
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180 | t.equal(impl.Buffer.from('').constructor, buffer.Buffer)
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181 | t.equal(impl.Buffer.from('string').constructor, buffer.Buffer)
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182 | t.equal(impl.Buffer.from('string', 'utf-8').constructor, buffer.Buffer)
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183 | t.equal(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64').constructor, buffer.Buffer)
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184 | t.equal(impl.Buffer.from([0, 42, 3]).constructor, buffer.Buffer)
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185 | t.equal(impl.Buffer.from(new Uint8Array([0, 42, 3])).constructor, buffer.Buffer)
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186 | t.equal(impl.Buffer.from([]).constructor, buffer.Buffer)
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187 | });
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188 | [0, 10, 100].forEach(function (arg) {
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189 | t.equal(dangerous.Buffer.allocUnsafe(arg).constructor, buffer.Buffer)
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190 | t.equal(dangerous.Buffer.allocUnsafeSlow(arg).constructor, buffer.SlowBuffer(0).constructor)
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191 | })
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192 | t.end()
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193 | })
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194 |
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195 | test('Invalid calls throw', function (t) {
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196 | [index, safer, dangerous].forEach(function (impl) {
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197 | t.throws(function () { impl.Buffer.from(0) })
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198 | t.throws(function () { impl.Buffer.from(10) })
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199 | t.throws(function () { impl.Buffer.from(10, 'utf-8') })
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200 | t.throws(function () { impl.Buffer.from('string', 'invalid encoding') })
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201 | t.throws(function () { impl.Buffer.from(-10) })
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202 | t.throws(function () { impl.Buffer.from(1e90) })
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203 | t.throws(function () { impl.Buffer.from(Infinity) })
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204 | t.throws(function () { impl.Buffer.from(-Infinity) })
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205 | t.throws(function () { impl.Buffer.from(NaN) })
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206 | t.throws(function () { impl.Buffer.from(null) })
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207 | t.throws(function () { impl.Buffer.from(undefined) })
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208 | t.throws(function () { impl.Buffer.from() })
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209 | t.throws(function () { impl.Buffer.from({}) })
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210 | t.throws(function () { impl.Buffer.alloc('') })
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211 | t.throws(function () { impl.Buffer.alloc('string') })
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212 | t.throws(function () { impl.Buffer.alloc('string', 'utf-8') })
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213 | t.throws(function () { impl.Buffer.alloc('b25ldHdvdGhyZWU=', 'base64') })
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214 | t.throws(function () { impl.Buffer.alloc(-10) })
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215 | t.throws(function () { impl.Buffer.alloc(1e90) })
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216 | t.throws(function () { impl.Buffer.alloc(2 * (1 << 30)) })
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217 | t.throws(function () { impl.Buffer.alloc(Infinity) })
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218 | t.throws(function () { impl.Buffer.alloc(-Infinity) })
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219 | t.throws(function () { impl.Buffer.alloc(null) })
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220 | t.throws(function () { impl.Buffer.alloc(undefined) })
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221 | t.throws(function () { impl.Buffer.alloc() })
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222 | t.throws(function () { impl.Buffer.alloc([]) })
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223 | t.throws(function () { impl.Buffer.alloc([0, 42, 3]) })
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224 | t.throws(function () { impl.Buffer.alloc({}) })
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225 | });
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226 | ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
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227 | t.throws(function () { dangerous.Buffer[method]('') })
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228 | t.throws(function () { dangerous.Buffer[method]('string') })
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229 | t.throws(function () { dangerous.Buffer[method]('string', 'utf-8') })
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230 | t.throws(function () { dangerous.Buffer[method](2 * (1 << 30)) })
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231 | t.throws(function () { dangerous.Buffer[method](Infinity) })
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232 | if (dangerous.Buffer[method] === buffer.Buffer.allocUnsafe) {
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233 | t.skip('Skipping, older impl of allocUnsafe coerced negative sizes to 0')
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234 | } else {
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235 | t.throws(function () { dangerous.Buffer[method](-10) })
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236 | t.throws(function () { dangerous.Buffer[method](-1e90) })
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237 | t.throws(function () { dangerous.Buffer[method](-Infinity) })
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238 | }
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239 | t.throws(function () { dangerous.Buffer[method](null) })
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240 | t.throws(function () { dangerous.Buffer[method](undefined) })
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241 | t.throws(function () { dangerous.Buffer[method]() })
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242 | t.throws(function () { dangerous.Buffer[method]([]) })
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243 | t.throws(function () { dangerous.Buffer[method]([0, 42, 3]) })
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244 | t.throws(function () { dangerous.Buffer[method]({}) })
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245 | })
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246 | t.end()
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247 | })
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248 |
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249 | test('Buffers have appropriate lengths', function (t) {
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250 | [index, safer, dangerous].forEach(function (impl) {
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251 | t.equal(impl.Buffer.alloc(0).length, 0)
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252 | t.equal(impl.Buffer.alloc(10).length, 10)
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253 | t.equal(impl.Buffer.from('').length, 0)
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254 | t.equal(impl.Buffer.from('string').length, 6)
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255 | t.equal(impl.Buffer.from('string', 'utf-8').length, 6)
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256 | t.equal(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64').length, 11)
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257 | t.equal(impl.Buffer.from([0, 42, 3]).length, 3)
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258 | t.equal(impl.Buffer.from(new Uint8Array([0, 42, 3])).length, 3)
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259 | t.equal(impl.Buffer.from([]).length, 0)
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260 | });
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261 | ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
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262 | t.equal(dangerous.Buffer[method](0).length, 0)
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263 | t.equal(dangerous.Buffer[method](10).length, 10)
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264 | })
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265 | t.end()
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266 | })
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267 |
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268 | test('Buffers have appropriate lengths (2)', function (t) {
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269 | t.equal(index.Buffer.alloc, safer.Buffer.alloc)
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270 | t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
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271 | var ok = true;
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272 | [ safer.Buffer.alloc,
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273 | dangerous.Buffer.allocUnsafe,
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274 | dangerous.Buffer.allocUnsafeSlow
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275 | ].forEach(function (method) {
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276 | for (var i = 0; i < 1e2; i++) {
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277 | var length = Math.round(Math.random() * 1e5)
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278 | var buf = method(length)
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279 | if (!buffer.Buffer.isBuffer(buf)) ok = false
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280 | if (buf.length !== length) ok = false
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281 | }
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282 | })
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283 | t.ok(ok)
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284 | t.end()
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285 | })
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286 |
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287 | test('.alloc(size) is zero-filled and has correct length', function (t) {
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288 | t.equal(index.Buffer.alloc, safer.Buffer.alloc)
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289 | t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
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290 | var ok = true
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291 | for (var i = 0; i < 1e2; i++) {
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292 | var length = Math.round(Math.random() * 2e6)
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293 | var buf = index.Buffer.alloc(length)
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294 | if (!buffer.Buffer.isBuffer(buf)) ok = false
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295 | if (buf.length !== length) ok = false
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296 | var j
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297 | for (j = 0; j < length; j++) {
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298 | if (buf[j] !== 0) ok = false
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299 | }
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300 | buf.fill(1)
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301 | for (j = 0; j < length; j++) {
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302 | if (buf[j] !== 1) ok = false
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303 | }
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304 | }
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305 | t.ok(ok)
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306 | t.end()
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307 | })
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308 |
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309 | test('.allocUnsafe / .allocUnsafeSlow are fillable and have correct lengths', function (t) {
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310 | ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
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311 | var ok = true
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312 | for (var i = 0; i < 1e2; i++) {
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313 | var length = Math.round(Math.random() * 2e6)
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314 | var buf = dangerous.Buffer[method](length)
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315 | if (!buffer.Buffer.isBuffer(buf)) ok = false
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316 | if (buf.length !== length) ok = false
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317 | buf.fill(0, 0, length)
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318 | var j
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319 | for (j = 0; j < length; j++) {
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320 | if (buf[j] !== 0) ok = false
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321 | }
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322 | buf.fill(1, 0, length)
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323 | for (j = 0; j < length; j++) {
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324 | if (buf[j] !== 1) ok = false
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325 | }
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326 | }
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327 | t.ok(ok, method)
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328 | })
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329 | t.end()
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330 | })
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331 |
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332 | test('.alloc(size, fill) is `fill`-filled', function (t) {
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333 | t.equal(index.Buffer.alloc, safer.Buffer.alloc)
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334 | t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
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335 | var ok = true
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336 | for (var i = 0; i < 1e2; i++) {
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337 | var length = Math.round(Math.random() * 2e6)
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338 | var fill = Math.round(Math.random() * 255)
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339 | var buf = index.Buffer.alloc(length, fill)
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340 | if (!buffer.Buffer.isBuffer(buf)) ok = false
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341 | if (buf.length !== length) ok = false
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342 | for (var j = 0; j < length; j++) {
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343 | if (buf[j] !== fill) ok = false
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344 | }
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345 | }
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346 | t.ok(ok)
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347 | t.end()
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348 | })
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349 |
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350 | test('.alloc(size, fill) is `fill`-filled', function (t) {
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351 | t.equal(index.Buffer.alloc, safer.Buffer.alloc)
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352 | t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
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353 | var ok = true
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354 | for (var i = 0; i < 1e2; i++) {
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355 | var length = Math.round(Math.random() * 2e6)
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356 | var fill = Math.round(Math.random() * 255)
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357 | var buf = index.Buffer.alloc(length, fill)
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358 | if (!buffer.Buffer.isBuffer(buf)) ok = false
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359 | if (buf.length !== length) ok = false
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360 | for (var j = 0; j < length; j++) {
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361 | if (buf[j] !== fill) ok = false
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362 | }
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363 | }
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364 | t.ok(ok)
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365 | t.deepEqual(index.Buffer.alloc(9, 'a'), index.Buffer.alloc(9, 97))
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366 | t.notDeepEqual(index.Buffer.alloc(9, 'a'), index.Buffer.alloc(9, 98))
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367 |
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368 | var tmp = new buffer.Buffer(2)
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369 | tmp.fill('ok')
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370 | if (tmp[1] === tmp[0]) {
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371 |
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372 | t.deepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('ooooo'))
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373 | } else {
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374 | t.deepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('okoko'))
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375 | }
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376 | t.notDeepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('kokok'))
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377 |
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378 | t.end()
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379 | })
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380 |
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381 | test('safer.Buffer.from returns results same as Buffer constructor', function (t) {
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382 | [index, safer, dangerous].forEach(function (impl) {
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383 | t.deepEqual(impl.Buffer.from(''), new buffer.Buffer(''))
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384 | t.deepEqual(impl.Buffer.from('string'), new buffer.Buffer('string'))
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385 | t.deepEqual(impl.Buffer.from('string', 'utf-8'), new buffer.Buffer('string', 'utf-8'))
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386 | t.deepEqual(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64'), new buffer.Buffer('b25ldHdvdGhyZWU=', 'base64'))
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387 | t.deepEqual(impl.Buffer.from([0, 42, 3]), new buffer.Buffer([0, 42, 3]))
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388 | t.deepEqual(impl.Buffer.from(new Uint8Array([0, 42, 3])), new buffer.Buffer(new Uint8Array([0, 42, 3])))
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389 | t.deepEqual(impl.Buffer.from([]), new buffer.Buffer([]))
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390 | })
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391 | t.end()
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392 | })
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393 |
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394 | test('safer.Buffer.from returns consistent results', function (t) {
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395 | [index, safer, dangerous].forEach(function (impl) {
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396 | t.deepEqual(impl.Buffer.from(''), impl.Buffer.alloc(0))
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397 | t.deepEqual(impl.Buffer.from([]), impl.Buffer.alloc(0))
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398 | t.deepEqual(impl.Buffer.from(new Uint8Array([])), impl.Buffer.alloc(0))
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399 | t.deepEqual(impl.Buffer.from('string', 'utf-8'), impl.Buffer.from('string'))
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400 | t.deepEqual(impl.Buffer.from('string'), impl.Buffer.from([115, 116, 114, 105, 110, 103]))
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401 | t.deepEqual(impl.Buffer.from('string'), impl.Buffer.from(impl.Buffer.from('string')))
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402 | t.deepEqual(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64'), impl.Buffer.from('onetwothree'))
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403 | t.notDeepEqual(impl.Buffer.from('b25ldHdvdGhyZWU='), impl.Buffer.from('onetwothree'))
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404 | })
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405 | t.end()
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406 | })
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