GIF89a=( õ' 7IAXKgNgYvYx\%wh…hŽth%ˆs%—x¨}9®Œ©€&©‰%¶†(¹–.¹5·œD¹&Çš)ÇŸ5ǘ;Í£*È¡&Õ²)ׯ7×µ<Ñ»4ï°3ø‘HÖ§KͯT÷¨Yÿšqÿ»qÿÔFØ !ù ' !ÿ NETSCAPE2.0 , =( þÀ“pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§gª«ªE¯°¨¬ª±²Œ¹º¹E¾­”´ÂB¶¯ §Åȸ»ÑD¾¿Á•ÄÅ®° ÝH¾ÒLÀÆDÙ«D¶BÝïðÀ¾DÑÑÔTÌÍíH òGö¨A RÎڐ |¥ ٭&ºìE8œ¹kGÔAÞpx­a¶­ã R2XB®åE8I€Õ6Xî:vT)äžþÀq¦è³¥ì仕F~%xñ  4#ZÔ‰O|-4Bs‘X:= QÉ œš lºÒyXJŠGȦ|s hÏíK–3l7·B|¥$'7Jީܪ‰‡àá”Dæn=Pƒ ¤Òëí‰`䌨ljóá¯Éüv>á–Á¼5 ½.69ûϸd«­ºÀûnlv©‹ªîf{¬ÜãPbŸ  l5‘Ž¯pß ´ ˜3aÅùäI«O’ý·‘áÞ‡˜¾Æ‚ÙÏiÇÿ‹Àƒ #öó)pâš Þ½ ‘Ý{ó)vmÞü%D~ 6f s}ŃƒDØW Eþ`‡þ À…L8xá†ç˜{)x`X/> Ì}mø‚–RØ‘*|`D=‚Ø_ ^ð5 !_…'aä“OÚ—7âcð`D”Cx`ÝÂ¥ä‹éY¹—F¼¤¥Š?¡Õ™ n@`} lď’ÄÉ@4>ñd œ à‘vÒxNÃ×™@žd=ˆgsžG±æ ´²æud &p8Qñ)ˆ«lXD©øÜéAžHìySun jª×k*D¤LH] †¦§C™Jä–´Xb~ʪwStŽ6K,°£qÁœ:9ت:¨þªl¨@¡`‚ûÚ ».Û¬¯t‹ÆSÉ[:°=Š‹„‘Nåû”Ìî{¿ÂA ‡Rà›ÀÙ6úë°Ÿð0Ä_ ½;ÃϱîÉì^ÇÛÇ#Ëë¼ôº!±Ä˜íUîÅÇ;0L1óÁµö«p% AÀºU̬ݵ¼á%霼€‡¯Á~`ÏG¯»À× ­²± =4ªnpð3¾¤³¯­ü¾¦îuÙuµÙ®|%2ÊIÿür¦#0·ÔJ``8È@S@5ê¢ ö×Þ^`8EÜ]ý.뜃Âç 7 ú ȉÞj œ½Dç zý¸iþœÑÙûÄë!ˆÞÀl§Ïw‹*DçI€nEX¯¬¼ &A¬Go¼QföõFç°¯;é¦÷îŽêJ°îúôF5¡ÌQ|îúöXªæ»TÁÏyñêï]ê² o óÎC=öõ›ÒÓPB@ D×½œä(>èCÂxŽ`±«Ÿ–JЀ»Û á¤±p+eE0`ëŽ`A Ú/NE€Ø†À9‚@¤à H½7”à‡%B‰`Àl*ƒó‘–‡8 2ñ%¸ —€:Ù1Á‰E¸àux%nP1ð!‘ðC)¾P81lÑɸF#ˆ€{´âé°ÈB„0>±û °b¡Š´±O‚3È–Ù()yRpbµ¨E.Z‘D8ÊH@% òŒx+%Ù˜Æcü »¸˜fõ¬b·d`Fê™8èXH"ÉÈ-±|1Ô6iI, 2““¬$+](A*jÐ QTÂo‰.ÛU슬Œã„Ž`¯SN¡–¶Äåyše¯ª’­¬‚´b¦Éož œ)åyâ@Ì®3 ÎtT̉°&Ø+žLÀf"Ø-|žçÔ>‡Ðv¦Ðžì\‚ Q1)Ž@Žh#aP72”ˆ™¨$‚ !ù " , =( …7IAXG]KgNgYvYxR"k\%w]'}hŽth%ˆg+ˆs%—r.—m3šx3˜x¨}9®€&©€+¨‡7§‰%¶†(¹–.¹œD¹&ǘ;Í•&ײ)×»4ïÌ6ò§KÍ þ@‘pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g «¬ E ±± ¨­¶°ººE Á´”·®C¬²§Ç¶Œ»ÓDÃÕƷ¯Ê±H½ºM×ÁGÚ¬D¶BËÁ½î½DÓôTÏÛßîG»ôõC×CÌ l&âž:'òtU³6ɹ#·Ø)€'Ü.6±&ëÍÈ» K(8p0N?!æ2"ÛˆNIJX>R¼ÐO‚M '¡¨2¸*Ÿþ>#n↠å@‚<[:¡Iïf’ ¤TÚ˘CdbÜÙ“[«ŽEú5MBo¤×@€`@„€Êt W-3 ¶Ÿ¡BíêäjIÝ…Eò9[T…$íêﯧ„…•s»Óȳ¹€ÅÚdc®UUρ#±Ùïldj?´í¼²`\ŽÁðÞu|3'ÖŒ]ë6 ¶S#²‡˜FKLÈ *N E´‘áäŠ$˜›eÄYD„ºq«.è촁ƒs \-ÔjA 9²õ÷å- üúM[Âx(ís÷ì®x€|í¡Ù’p¦‚ ŽkÛTÇDpE@WÜ ²Ç]kŠ1¨ þ€·Yb ÓÁ‰l°*n0 ç™—žzBdОu¾7ĉBl€â‰-ºx~|UåU‰  h*Hœ|e"#"?vpÄiŠe6^ˆ„+qâŠm8 #VÇá ‘å–ÄV„œ|Šè•m"сœn|@›U¶ÆΞ—Špb¥G¨ED”€±Úê2FÌIç? >Éxå Œ± ¡¤„%‘žjŸ‘ꄯ<Ìaà9ijÐ2˜D¦È&›†Z`‚å]wþ¼Â:ç6àB¤7eFJ|õÒ§Õ,¨äàFÇ®cS·Ê¶+B°,‘Þ˜ºNûãØ>PADÌHD¹æž«ÄÀnÌ¥}­#Ë’ë QÀÉSÌÂÇ2ÌXÀ{æk²lQÁ2«ÊðÀ¯w|2Í h‹ÄÂG€,m¾¶ë3ÐÙ6-´ÅE¬L°ÆIij*K½ÀÇqï`DwVÍQXœÚÔpeœ±¬Ñ q˜§Tœ½µƒ°Œìu Â<¶aØ*At¯lmEØ ü ôÛN[P1ÔÛ¦­±$ÜÆ@`ùåDpy¶yXvCAyåB`ŽD¶ 0QwG#¯ æš[^Äþ $ÀÓÝǦ{„L™[±úKÄgÌ;ï£S~¹ìGX.ôgoT.»åˆ°ùŸûù¡?1zö¦Ÿž:ÅgÁ|ìL¹ „®£œŠ‚à0œ]PÁ^p F<"•ç?!,ñ‡N4—…PÄ Á„ö¨Û:Tè@hÀ‹%táÿ:ø-žI<`þ‹p I….)^ 40D#p@ƒj4–؀:²‰1Øâr˜¼F2oW¼#Z†;$Q q” ‘ ÂK¦ñNl#29 !’F@¥Bh·ᏀL!—XFóLH‘Kh¤.«hE&JòG¨¥<™WN!€ÑÙÚˆY„@†>Œž19J" 2,/ &.GXB%ÌRÈ9B6¹W]’î×ÔW¥’IÎ$ ñ‹ÓŒE8YÆ ¼³™ñA5“à®Q.aŸB€&Ø©³ JÁ—! ¦t)K%tœ-¦JF bòNMxLôþ)ÐR¸Ð™‘ èÝ6‘O!THÌ„HÛ ‰ !ù ) , =( …AXKgNgYvYxR"k\%wh…hŽh%ˆg+ˆs%—r.—x3˜x¨}9®€&©€+¨Œ,©‡7§‰%¶†(¹–.¹5·&Çš)ǘ;Í•&×£*Ȳ)ׯ7×»4ï°3øÌ6ò‘HÖ§KÍ»Hó¯T÷¨Yÿ»qÿÇhÿ þÀ”pH,È¤rÉl:ŸÐ¨tJ­Z¯Ø¬vËíz¿à°xL.›Ïè´zÍn»ßð¸|N¯Ûïø¼~Ïïûÿ€‚ƒ„…†‡ˆ‰Š‹ŒŽ‘’“”•–—˜™š›œžŸ ¡¢£¤¥¦§g ª« E$±²¨ª­ · °²½$E$ÂÕ««D· Í ¿¦Ç¶¸ÌŒ¾³CÃÅÆ E ééH½MÛÂGâªD­ çBêêϾD²ÒaÀà€Š1r­ðÓ¤ ÔožzU!L˜C'¾yW½UGtäÇïÙllê0×àÂuGþ)AÀs[þ·xì ÁxO%ƒûX2ó—  P£n›R/¡ÑšHše+êDm?# —‘Ç£6¡8íJ¡ŸâDiäªM¥Ö„ôj“¬¹£5oQ7°- <‡ *´lãÓŒ2r/a!l)dÈ A™ÈE¢ôÔ͆…ð ;Ö˜c ¡%ß‚’Ùˆâ¸b½—pe~C"BíëÚHïeF2§æŠ8qb t_`urŠeü wÅu3êæPv§h•"ß`íÍxçLĹÜÖ3á  ~Öº“®›¸ÏMDfJÙ °„ÛµáWõ%§œ‚à©–‚X Ó؁)@®Ñ›Eþ´wëuÅSxb8y\mÖzœ¥§ZbºE—ÂLªÌw!y(>¡™wú=Ç|ÅÝs¢d €CÁW)HÜcC$€L Ä7„r.á\{)@ð` @ äXÈ$PD” `šaG:§æˆOˆ72EÐamn]ù"ŒcÊxÑŒ° &dR8`g«iÙŸLR!¦P …d’ä¡“¦ðÎTƒ¦ià|À _ ¥ Qi#¦Šg›Æ ›noMµ ›V ã£)p ç£ÎW…š=Âeªk§†j„ ´®1ß²sÉxéW«jšl|0¯B0Û, \jÛ´›6±¬¶C ÛíWþï|ëÙ‹¸ñzĸV {ì;Ýñn¼òVˆm³I¼³.Ðã¤PN¥ ²µ¼„µCã+¹ÍByî£Ñ¾HŸ›ëê 7ìYÆFTk¨SaoaY$Dµœìï¿Ã29RÈkt Çïfñ ÇÒ:ÀÐSp¹3ÇI¨â¥DZÄ ü9Ïýögñ½­uÔ*3)O‘˜Ö[_hv ,àî×Et Ÿé¶BH€ Õ[ü±64M@ÔSÌM7dÐl5-ÄÙU܍´©zߌ3Ô€3ž„ „ ¶ÛPô½5×g› êÚ˜kN„Ý…0Îj4€Ìë°“#{þÕ3S2çKÜ'ợlø¼Ú2K{° {Û¶?žm𸧠ËI¼nEò='êüóºè^üæÃ_Û=°óž‚ì#Oý¿Í'¡½áo..ÏYìnüñCœO±Áa¿¢Kô½o,üÄËbö²çºíï{ËC Ú— "”Ï{ËK ÍÒw„õ±Oz dÕ¨à:$ ƒô—«v»] A#ð «€¿šéz)Rx׿ˆ¥‚d``èw-îyÏf×K!ð€þ­Ð|ìPľ„=Ì`ý(f” 'Pa ¥ÐBJa%Ðâf§„%Š¡}FàáÝ×6>ÉäŠG"éŽè=ø!oŠ°^FP¼Ø©Q„ÀCÙÁ`(Ž\ÄÝ® ©Â$<n@dÄ E#ììUÒI! ‚#lù‹`k¦ÐÇ'Rró’ZýNBÈMF Í[¤+‹ðɈ-áwj¨¥þ8¾rá ,VÂh„"|½œ=×G_¦Ñ™EØ 0i*%̲˜Æda0mV‚k¾)›;„&6 p>ÓjK “¦Ç# âDÂ:ûc?:R Ó¬fÞéI-Ì“•Ã<ä=™Ï7˜3œ¨˜c2ŒW ,ˆ”8(T™P‰F¡Jhç"‚ ; 403WebShell
403Webshell
Server IP : 104.21.83.152  /  Your IP : 216.73.216.195
Web Server : LiteSpeed
System : Linux premium229.web-hosting.com 4.18.0-553.45.1.lve.el8.x86_64 #1 SMP Wed Mar 26 12:08:09 UTC 2025 x86_64
User : akhalid ( 749)
PHP Version : 8.3.22
Disable Function : NONE
MySQL : OFF  |  cURL : ON  |  WGET : ON  |  Perl : ON  |  Python : ON  |  Sudo : OFF  |  Pkexec : OFF
Directory :  /lib/node_modules/npm/node_modules/safer-buffer/

Upload File :
current_dir [ Writeable ] document_root [ Writeable ]

 

Command :

[ Back ]     

Current File : /lib/node_modules/npm/node_modules/safer-buffer/tests.js
/* eslint-disable node/no-deprecated-api */

'use strict'

var test = require('tape')

var buffer = require('buffer')

var index = require('./')
var safer = require('./safer')
var dangerous = require('./dangerous')

/* Inheritance tests */

test('Default is Safer', function (t) {
  t.equal(index, safer)
  t.notEqual(safer, dangerous)
  t.notEqual(index, dangerous)
  t.end()
})

test('Is not a function', function (t) {
  [index, safer, dangerous].forEach(function (impl) {
    t.equal(typeof impl, 'object')
    t.equal(typeof impl.Buffer, 'object')
  });
  [buffer].forEach(function (impl) {
    t.equal(typeof impl, 'object')
    t.equal(typeof impl.Buffer, 'function')
  })
  t.end()
})

test('Constructor throws', function (t) {
  [index, safer, dangerous].forEach(function (impl) {
    t.throws(function () { impl.Buffer() })
    t.throws(function () { impl.Buffer(0) })
    t.throws(function () { impl.Buffer('a') })
    t.throws(function () { impl.Buffer('a', 'utf-8') })
    t.throws(function () { return new impl.Buffer() })
    t.throws(function () { return new impl.Buffer(0) })
    t.throws(function () { return new impl.Buffer('a') })
    t.throws(function () { return new impl.Buffer('a', 'utf-8') })
  })
  t.end()
})

test('Safe methods exist', function (t) {
  [index, safer, dangerous].forEach(function (impl) {
    t.equal(typeof impl.Buffer.alloc, 'function', 'alloc')
    t.equal(typeof impl.Buffer.from, 'function', 'from')
  })
  t.end()
})

test('Unsafe methods exist only in Dangerous', function (t) {
  [index, safer].forEach(function (impl) {
    t.equal(typeof impl.Buffer.allocUnsafe, 'undefined')
    t.equal(typeof impl.Buffer.allocUnsafeSlow, 'undefined')
  });
  [dangerous].forEach(function (impl) {
    t.equal(typeof impl.Buffer.allocUnsafe, 'function')
    t.equal(typeof impl.Buffer.allocUnsafeSlow, 'function')
  })
  t.end()
})

test('Generic methods/properties are defined and equal', function (t) {
  ['poolSize', 'isBuffer', 'concat', 'byteLength'].forEach(function (method) {
    [index, safer, dangerous].forEach(function (impl) {
      t.equal(impl.Buffer[method], buffer.Buffer[method], method)
      t.notEqual(typeof impl.Buffer[method], 'undefined', method)
    })
  })
  t.end()
})

test('Built-in buffer static methods/properties are inherited', function (t) {
  Object.keys(buffer).forEach(function (method) {
    if (method === 'SlowBuffer' || method === 'Buffer') return;
    [index, safer, dangerous].forEach(function (impl) {
      t.equal(impl[method], buffer[method], method)
      t.notEqual(typeof impl[method], 'undefined', method)
    })
  })
  t.end()
})

test('Built-in Buffer static methods/properties are inherited', function (t) {
  Object.keys(buffer.Buffer).forEach(function (method) {
    if (method === 'allocUnsafe' || method === 'allocUnsafeSlow') return;
    [index, safer, dangerous].forEach(function (impl) {
      t.equal(impl.Buffer[method], buffer.Buffer[method], method)
      t.notEqual(typeof impl.Buffer[method], 'undefined', method)
    })
  })
  t.end()
})

test('.prototype property of Buffer is inherited', function (t) {
  [index, safer, dangerous].forEach(function (impl) {
    t.equal(impl.Buffer.prototype, buffer.Buffer.prototype, 'prototype')
    t.notEqual(typeof impl.Buffer.prototype, 'undefined', 'prototype')
  })
  t.end()
})

test('All Safer methods are present in Dangerous', function (t) {
  Object.keys(safer).forEach(function (method) {
    if (method === 'Buffer') return;
    [index, safer, dangerous].forEach(function (impl) {
      t.equal(impl[method], safer[method], method)
      if (method !== 'kStringMaxLength') {
        t.notEqual(typeof impl[method], 'undefined', method)
      }
    })
  })
  Object.keys(safer.Buffer).forEach(function (method) {
    [index, safer, dangerous].forEach(function (impl) {
      t.equal(impl.Buffer[method], safer.Buffer[method], method)
      t.notEqual(typeof impl.Buffer[method], 'undefined', method)
    })
  })
  t.end()
})

test('Safe methods from Dangerous methods are present in Safer', function (t) {
  Object.keys(dangerous).forEach(function (method) {
    if (method === 'Buffer') return;
    [index, safer, dangerous].forEach(function (impl) {
      t.equal(impl[method], dangerous[method], method)
      if (method !== 'kStringMaxLength') {
        t.notEqual(typeof impl[method], 'undefined', method)
      }
    })
  })
  Object.keys(dangerous.Buffer).forEach(function (method) {
    if (method === 'allocUnsafe' || method === 'allocUnsafeSlow') return;
    [index, safer, dangerous].forEach(function (impl) {
      t.equal(impl.Buffer[method], dangerous.Buffer[method], method)
      t.notEqual(typeof impl.Buffer[method], 'undefined', method)
    })
  })
  t.end()
})

/* Behaviour tests */

test('Methods return Buffers', function (t) {
  [index, safer, dangerous].forEach(function (impl) {
    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0)))
    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0, 10)))
    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0, 'a')))
    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(10)))
    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(10, 'x')))
    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(9, 'ab')))
    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('')))
    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('string')))
    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('string', 'utf-8')))
    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64')))
    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from([0, 42, 3])))
    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from(new Uint8Array([0, 42, 3]))))
    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from([])))
  });
  ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
    t.ok(buffer.Buffer.isBuffer(dangerous.Buffer[method](0)))
    t.ok(buffer.Buffer.isBuffer(dangerous.Buffer[method](10)))
  })
  t.end()
})

test('Constructor is buffer.Buffer', function (t) {
  [index, safer, dangerous].forEach(function (impl) {
    t.equal(impl.Buffer.alloc(0).constructor, buffer.Buffer)
    t.equal(impl.Buffer.alloc(0, 10).constructor, buffer.Buffer)
    t.equal(impl.Buffer.alloc(0, 'a').constructor, buffer.Buffer)
    t.equal(impl.Buffer.alloc(10).constructor, buffer.Buffer)
    t.equal(impl.Buffer.alloc(10, 'x').constructor, buffer.Buffer)
    t.equal(impl.Buffer.alloc(9, 'ab').constructor, buffer.Buffer)
    t.equal(impl.Buffer.from('').constructor, buffer.Buffer)
    t.equal(impl.Buffer.from('string').constructor, buffer.Buffer)
    t.equal(impl.Buffer.from('string', 'utf-8').constructor, buffer.Buffer)
    t.equal(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64').constructor, buffer.Buffer)
    t.equal(impl.Buffer.from([0, 42, 3]).constructor, buffer.Buffer)
    t.equal(impl.Buffer.from(new Uint8Array([0, 42, 3])).constructor, buffer.Buffer)
    t.equal(impl.Buffer.from([]).constructor, buffer.Buffer)
  });
  [0, 10, 100].forEach(function (arg) {
    t.equal(dangerous.Buffer.allocUnsafe(arg).constructor, buffer.Buffer)
    t.equal(dangerous.Buffer.allocUnsafeSlow(arg).constructor, buffer.SlowBuffer(0).constructor)
  })
  t.end()
})

test('Invalid calls throw', function (t) {
  [index, safer, dangerous].forEach(function (impl) {
    t.throws(function () { impl.Buffer.from(0) })
    t.throws(function () { impl.Buffer.from(10) })
    t.throws(function () { impl.Buffer.from(10, 'utf-8') })
    t.throws(function () { impl.Buffer.from('string', 'invalid encoding') })
    t.throws(function () { impl.Buffer.from(-10) })
    t.throws(function () { impl.Buffer.from(1e90) })
    t.throws(function () { impl.Buffer.from(Infinity) })
    t.throws(function () { impl.Buffer.from(-Infinity) })
    t.throws(function () { impl.Buffer.from(NaN) })
    t.throws(function () { impl.Buffer.from(null) })
    t.throws(function () { impl.Buffer.from(undefined) })
    t.throws(function () { impl.Buffer.from() })
    t.throws(function () { impl.Buffer.from({}) })
    t.throws(function () { impl.Buffer.alloc('') })
    t.throws(function () { impl.Buffer.alloc('string') })
    t.throws(function () { impl.Buffer.alloc('string', 'utf-8') })
    t.throws(function () { impl.Buffer.alloc('b25ldHdvdGhyZWU=', 'base64') })
    t.throws(function () { impl.Buffer.alloc(-10) })
    t.throws(function () { impl.Buffer.alloc(1e90) })
    t.throws(function () { impl.Buffer.alloc(2 * (1 << 30)) })
    t.throws(function () { impl.Buffer.alloc(Infinity) })
    t.throws(function () { impl.Buffer.alloc(-Infinity) })
    t.throws(function () { impl.Buffer.alloc(null) })
    t.throws(function () { impl.Buffer.alloc(undefined) })
    t.throws(function () { impl.Buffer.alloc() })
    t.throws(function () { impl.Buffer.alloc([]) })
    t.throws(function () { impl.Buffer.alloc([0, 42, 3]) })
    t.throws(function () { impl.Buffer.alloc({}) })
  });
  ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
    t.throws(function () { dangerous.Buffer[method]('') })
    t.throws(function () { dangerous.Buffer[method]('string') })
    t.throws(function () { dangerous.Buffer[method]('string', 'utf-8') })
    t.throws(function () { dangerous.Buffer[method](2 * (1 << 30)) })
    t.throws(function () { dangerous.Buffer[method](Infinity) })
    if (dangerous.Buffer[method] === buffer.Buffer.allocUnsafe) {
      t.skip('Skipping, older impl of allocUnsafe coerced negative sizes to 0')
    } else {
      t.throws(function () { dangerous.Buffer[method](-10) })
      t.throws(function () { dangerous.Buffer[method](-1e90) })
      t.throws(function () { dangerous.Buffer[method](-Infinity) })
    }
    t.throws(function () { dangerous.Buffer[method](null) })
    t.throws(function () { dangerous.Buffer[method](undefined) })
    t.throws(function () { dangerous.Buffer[method]() })
    t.throws(function () { dangerous.Buffer[method]([]) })
    t.throws(function () { dangerous.Buffer[method]([0, 42, 3]) })
    t.throws(function () { dangerous.Buffer[method]({}) })
  })
  t.end()
})

test('Buffers have appropriate lengths', function (t) {
  [index, safer, dangerous].forEach(function (impl) {
    t.equal(impl.Buffer.alloc(0).length, 0)
    t.equal(impl.Buffer.alloc(10).length, 10)
    t.equal(impl.Buffer.from('').length, 0)
    t.equal(impl.Buffer.from('string').length, 6)
    t.equal(impl.Buffer.from('string', 'utf-8').length, 6)
    t.equal(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64').length, 11)
    t.equal(impl.Buffer.from([0, 42, 3]).length, 3)
    t.equal(impl.Buffer.from(new Uint8Array([0, 42, 3])).length, 3)
    t.equal(impl.Buffer.from([]).length, 0)
  });
  ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
    t.equal(dangerous.Buffer[method](0).length, 0)
    t.equal(dangerous.Buffer[method](10).length, 10)
  })
  t.end()
})

test('Buffers have appropriate lengths (2)', function (t) {
  t.equal(index.Buffer.alloc, safer.Buffer.alloc)
  t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
  var ok = true;
  [ safer.Buffer.alloc,
    dangerous.Buffer.allocUnsafe,
    dangerous.Buffer.allocUnsafeSlow
  ].forEach(function (method) {
    for (var i = 0; i < 1e2; i++) {
      var length = Math.round(Math.random() * 1e5)
      var buf = method(length)
      if (!buffer.Buffer.isBuffer(buf)) ok = false
      if (buf.length !== length) ok = false
    }
  })
  t.ok(ok)
  t.end()
})

test('.alloc(size) is zero-filled and has correct length', function (t) {
  t.equal(index.Buffer.alloc, safer.Buffer.alloc)
  t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
  var ok = true
  for (var i = 0; i < 1e2; i++) {
    var length = Math.round(Math.random() * 2e6)
    var buf = index.Buffer.alloc(length)
    if (!buffer.Buffer.isBuffer(buf)) ok = false
    if (buf.length !== length) ok = false
    var j
    for (j = 0; j < length; j++) {
      if (buf[j] !== 0) ok = false
    }
    buf.fill(1)
    for (j = 0; j < length; j++) {
      if (buf[j] !== 1) ok = false
    }
  }
  t.ok(ok)
  t.end()
})

test('.allocUnsafe / .allocUnsafeSlow are fillable and have correct lengths', function (t) {
  ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {
    var ok = true
    for (var i = 0; i < 1e2; i++) {
      var length = Math.round(Math.random() * 2e6)
      var buf = dangerous.Buffer[method](length)
      if (!buffer.Buffer.isBuffer(buf)) ok = false
      if (buf.length !== length) ok = false
      buf.fill(0, 0, length)
      var j
      for (j = 0; j < length; j++) {
        if (buf[j] !== 0) ok = false
      }
      buf.fill(1, 0, length)
      for (j = 0; j < length; j++) {
        if (buf[j] !== 1) ok = false
      }
    }
    t.ok(ok, method)
  })
  t.end()
})

test('.alloc(size, fill) is `fill`-filled', function (t) {
  t.equal(index.Buffer.alloc, safer.Buffer.alloc)
  t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
  var ok = true
  for (var i = 0; i < 1e2; i++) {
    var length = Math.round(Math.random() * 2e6)
    var fill = Math.round(Math.random() * 255)
    var buf = index.Buffer.alloc(length, fill)
    if (!buffer.Buffer.isBuffer(buf)) ok = false
    if (buf.length !== length) ok = false
    for (var j = 0; j < length; j++) {
      if (buf[j] !== fill) ok = false
    }
  }
  t.ok(ok)
  t.end()
})

test('.alloc(size, fill) is `fill`-filled', function (t) {
  t.equal(index.Buffer.alloc, safer.Buffer.alloc)
  t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)
  var ok = true
  for (var i = 0; i < 1e2; i++) {
    var length = Math.round(Math.random() * 2e6)
    var fill = Math.round(Math.random() * 255)
    var buf = index.Buffer.alloc(length, fill)
    if (!buffer.Buffer.isBuffer(buf)) ok = false
    if (buf.length !== length) ok = false
    for (var j = 0; j < length; j++) {
      if (buf[j] !== fill) ok = false
    }
  }
  t.ok(ok)
  t.deepEqual(index.Buffer.alloc(9, 'a'), index.Buffer.alloc(9, 97))
  t.notDeepEqual(index.Buffer.alloc(9, 'a'), index.Buffer.alloc(9, 98))

  var tmp = new buffer.Buffer(2)
  tmp.fill('ok')
  if (tmp[1] === tmp[0]) {
    // Outdated Node.js
    t.deepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('ooooo'))
  } else {
    t.deepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('okoko'))
  }
  t.notDeepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('kokok'))

  t.end()
})

test('safer.Buffer.from returns results same as Buffer constructor', function (t) {
  [index, safer, dangerous].forEach(function (impl) {
    t.deepEqual(impl.Buffer.from(''), new buffer.Buffer(''))
    t.deepEqual(impl.Buffer.from('string'), new buffer.Buffer('string'))
    t.deepEqual(impl.Buffer.from('string', 'utf-8'), new buffer.Buffer('string', 'utf-8'))
    t.deepEqual(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64'), new buffer.Buffer('b25ldHdvdGhyZWU=', 'base64'))
    t.deepEqual(impl.Buffer.from([0, 42, 3]), new buffer.Buffer([0, 42, 3]))
    t.deepEqual(impl.Buffer.from(new Uint8Array([0, 42, 3])), new buffer.Buffer(new Uint8Array([0, 42, 3])))
    t.deepEqual(impl.Buffer.from([]), new buffer.Buffer([]))
  })
  t.end()
})

test('safer.Buffer.from returns consistent results', function (t) {
  [index, safer, dangerous].forEach(function (impl) {
    t.deepEqual(impl.Buffer.from(''), impl.Buffer.alloc(0))
    t.deepEqual(impl.Buffer.from([]), impl.Buffer.alloc(0))
    t.deepEqual(impl.Buffer.from(new Uint8Array([])), impl.Buffer.alloc(0))
    t.deepEqual(impl.Buffer.from('string', 'utf-8'), impl.Buffer.from('string'))
    t.deepEqual(impl.Buffer.from('string'), impl.Buffer.from([115, 116, 114, 105, 110, 103]))
    t.deepEqual(impl.Buffer.from('string'), impl.Buffer.from(impl.Buffer.from('string')))
    t.deepEqual(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64'), impl.Buffer.from('onetwothree'))
    t.notDeepEqual(impl.Buffer.from('b25ldHdvdGhyZWU='), impl.Buffer.from('onetwothree'))
  })
  t.end()
})

Youez - 2016 - github.com/yon3zu
LinuXploit