ÿØÿà JFIF    ÿÛ „  ( %"1!%)+...383,7(-.+  -+++--++++---+-+-----+---------------+---+-++7-----ÿÀ  ß â" ÿÄ     ÿÄ H    !1AQaq"‘¡2B±ÁÑð#R“Ò Tbr‚²á3csƒ’ÂñDS¢³$CÿÄ   ÿÄ %  !1AQa"23‘ÿÚ   ? ôÿ ¨pŸªáÿ —åYõõ\?àÒü©ŠÄï¨pŸªáÿ —åYõõ\?àÓü©ŠÄá 0Ÿªáÿ Ÿå[úƒ ú®ði~TÁbqÐ8OÕpÿ ƒOò¤Oè`–RÂáœá™êi€ßÉ< FtŸI“öÌ8úDf´°å}“¾œ6  öFá°y¥jñÇh†ˆ¢ã/ÃÐ:ªcÈ "Y¡ðÑl>ÿ ”ÏËte:qž\oäŠe÷󲍷˜HT4&ÿ ÓÐü6ö®¿øþßèô Ÿ•7Ñi’•j|“ñì>b…þS?*Óôÿ ÓÐü*h¥£ír¶ü UãSç‚Ÿ[AÐaè[ûª•õ&õj?†Éö+EzP—WeÒírJFt ‘BŒ†Ï‡%#tE Øz ¥OÛ«!1›üä±Í™%ºÍãö]°î(–:@<‹ŒÊö×òÆt¦ãº+‡¦%ÌÁ²h´OƒJŒtMÜ>ÀÜÊw3Y´•牋4ǍýʏTì>œú=Íwhyë,¾Ôò×õ¿ßÊa»«þˆѪQ|%6ž™A õ%:øj<>É—ÿ Å_ˆCbõ¥š±ý¯Ýƒï…¶|RëócÍf溪“t.СøTÿ *Ä¿-{†çàczůŽ_–^XþŒ±miB[X±d 1,é”zEù»& î9gœf™9Ð'.;—™i}!ôšåîqêÛ٤ёý£½ÆA–àôe"A$˝Úsäÿ ÷Û #°xŸëí(l »ý3—¥5m! rt`†0~'j2(]S¦¦kv,ÚÇ l¦øJA£Šƒ J3E8ÙiŽ:cÉžúeZ°€¯\®kÖ(79«Ž:¯X”¾³Š&¡* ….‰Ž(ÜíŸ2¥ª‡×Hi²TF¤ò[¨íÈRëÉ䢍mgÑ.Ÿ<öäS0í„ǹÁU´f#Vß;Õ–…P@3ío<ä-±»Ž.L|kªÀê›fÂ6@»eu‚|ÓaÞÆŸ…¨ááå>åŠ?cKü6ùTÍÆ”†sĤÚ;H2RÚ†õ\Ö·Ÿn'¾ ñ#ºI¤Å´%çÁ­‚â7›‹qT3Iï¨ÖÚ5I7Ë!ÅOóŸ¶øÝñØôת¦$Tcö‘[«Ö³šÒ';Aþ ¸èíg A2Z"i¸vdÄ÷.iõ®§)¿]¤À†–‡É&ä{V¶iŽ”.Ó×Õÿ û?h¬Mt–íª[ÿ Ñÿ ÌV(í}=ibÔ¡›¥¢±b Lô¥‡piη_Z<‡z§èŒ)iÖwiÇ 2hÙ3·=’d÷8éŽ1¦¸c¤µ€7›7Ø ð\á)} ¹fËí›pAÃL%âc2 í§æQz¿;T8sæ°qø)QFMð‰XŒÂ±N¢aF¨…8¯!U  Z©RÊ ÖPVÄÀÍin™Ì-GˆªÅËŠ›•zË}º±ŽÍFò¹}Uw×#ä5B¤{î}Ð<ÙD é©¤&‡ïDbàÁôMÁ." ¤‡ú*õ'VŽ|¼´Úgllº¼klz[Æüï÷Aób‡Eÿ dÑ»Xx9ÃÜ£ÁT/`¼¸vI±Ýµ·Ë‚“G³þ*Ÿû´r|*}<¨îºœ @¦mÄ’M¹”.œ«Y–|6ÏU¤jç¥ÕÞqO ˜kDÆÁ¨5ÿ š;Њ¦¦€GÙk \ –Þ=â¼=SͧµªS°ÚÍpÜãQűÀõ¬?ÃÁ1Ñ•õZà?hóœ€ L¦l{Y*K˜Ù›zc˜–ˆâ ø+¾ ­-Ök¥%ùEÜA'}ˆ><ÊIè“bpÍ/qÞâvoX€w,\úªò6Z[XdÒæ­@Ö—€$òJí#é>'°Ú ôª˜<)4ryÙ£|óAÅn5žêŸyÒäMÝ2{"}‰–¤l÷ûWX\l¾Á¸góÉOÔ /óñB¤f¸çñ[.P˜ZsÊË*ßT܈§QN¢’¡¨§V¼(Üù*eÕ“”5T¨‹Âê¥FŒã½Dü[8'Ò¥a…Ú¶k7a *•›¼'Ò·\8¨ª\@\õ¢¦íq+DÙrmÎ…_ªæ»ŠÓœ¡¯’Ré9MÅ×D™lælffc+ŒÑ,ý™ÿ ¯þǤ=Å’Á7µ÷ÚÛ/“Ü€ñýã¼àí¾ÕÑ+ƒ,uµMâÀÄbm:ÒÎPæ{˜Gz[ƒ¯«® KHà`ßØŠéí¯P8Aq.C‰ à€kòpj´kN¶qô€…Õ,ÜNŠª-­{Zö’æû44‰sŽè‰îVíRœÕm" 6?³D9¡ÇTíÅꋇ`4«¸ÝÁô ï’ýorqКÇZ«x4Žâéþuïf¹µö[P ,Q£éaX±`PÉÍZ ¸äYúg üAx ’6Lê‚xÝÓ*äQ  Ï’¨hÍ =²,6ï#rÃ<¯–£»ƒ‹,–ê•€ aÛsñ'%Æ"®ÛüìBᝠHÚ3ß°©$“XnœÖ’î2ËTeûìxîß ¦å¿çÉ ðK§þ{‘t‚Ϋ¬jéîZ[ ”š7L¥4VÚCE×]m¤Øy”ä4-dz£œ§¸x.*ãÊÊ b÷•h:©‡¦s`BTÁRû¾g⻩‹jø sF¢àJøFl‘È•Xᓁà~*j¯ +(ÚÕ6-£¯÷GŠØy‚<Ç’.F‹Hœw(+)ÜÜâÈzÄäT§FߘãÏ;DmVœ3Àu@mÚüXÝü•3B¨òÌÁÛ<·ÃÜ z,Ì@õÅ·d2]ü8s÷IôÞ¯^Ç9¢u„~ëAŸï4«M? K]­ÅàPl@s_ p:°¬ZR”´›JC[CS.h‹ƒïËœ«Æ]–÷ó‚wR×k7X‰k›‘´ù¦=¡«‰¨¨Â')—71ó’c‡Ðúµ `é.{§p¹ój\Ž{1h{o±Ý=áUÊïGÖŒõ–-BÄm+AZX¶¡ ïHðæ¥JmÙ;…ä¡Ÿˆ¦ ° äšiÉg«$üMk5¤L“’çÊvïâï ,=f“"íἊ5ô¬x6{ɏžID0e¸vçmi'︧ºð9$ò¹÷*£’9ÿ ²TÔ…×>JV¥}Œ}$p[bÔ®*[jzS*8 ”·T›Í–ñUîƒwo$áè=LT™ç—~ô·¤ÈÚ$榍q‰„+´kFm)ž‹©i–ËqÞŠ‰à¶ü( ‚•§ •°ò·‡#5ª•µÊ﯅¡X¨šÁ*F#TXJÊ ušJVÍ&=iÄs1‚3•'fý§5Ñ<=[íÞ­ PÚ;ѱÌ_~Ä££8rÞ ²w;’hDT°>ÈG¬8Á²ÚzŽ®ò®qZcqJêäÞ-ö[ܘbň±çb“Š¶31²n×iƒðÕ;1¶þÉ ªX‰,ßqÏ$>•î íZ¥Z 1{ç൵+ƒÕµ¥°T$§K]á»Ûï*·¤tMI’ÂZbŽÕiÒ˜}bÓ0£ª5›¨ [5Ž^ÝœWøÂÝh° ¢OWun£¤5 a2Z.G2³YL]jåtì”ä ÁÓ‘%"©<ÔúÊ°sº UZvä‡ÄiÆÒM .÷V·™ø#kèýiíÌ–ª)µT[)BˆõÑ xB¾B€ÖT¨.¥~ð@VĶr#¸ü*åZNDŽH;âi ],©£öØpù(šºãö¼T.uCê•4@ÿ GÕÛ)Cx›®0ø#:ÏðFÒbR\(€€Ä®fã4Þ‰Fä¯HXƒÅ,†öEÑÔÜ]Öv²?tLÃvBY£ú6Êu5ÅAQ³1‘’¬x–HŒÐ‡ ^ ¸KwJôÖŽ5×CÚ¨vÜ«/B0$×k°=ðbÇ(Ï)w±A†Á† 11Í=èQšµ626ŒÜ/`G«µ<}—-Ö7KEHÈÉðóȤmݱû±·ø«Snmá=“ä«šmݱŸ¡¶~ó·“äUóJæúòB|E LêŽy´jDÔ$G¢þÐñ7óR8ýÒ…Ç› WVe#·Ÿ p·Fx~•ݤF÷0Èÿ K¯æS<6’¡WШ; ´ÿ ¥Êø\Òuî†åÝ–VNœkÒ7oòX¨Á­Ø÷FÎÑä±g÷ÿ M~Çî=p,X´ ÝÌÚÅ‹’ÃjÖ.ØöÏñ qïQ¤ÓZE†° =6·]܈ s¸>v•Ž^Ý\wq9r‰Î\¸¡kURÒ$­*‹Nq?Þª*!sŠÆ:TU_u±T+øX¡ ®¹¡,ÄâÃBTsÜ$Ø›4m椴zÜK]’’›Pƒ @€#â˜`é¹=I‡fiV•Ôî“nRm+µFPOhÍ0B£ €+¬5c v•:P'ÒyÎ ‰V~‚Ó†ÖuókDoh$å\*ö%Ю=£«…aȼ½÷Û.-½VŒŠ¼'lyî±1¬3ó#ÞE¿ÔS¤gV£m›=§\û"—WU¤ÚǼÿ ÂnÁGŒÃ ‚õN D³õNÚíŒÕ;HôyÄÈ©P¹Ä{:?R‘Ô¨âF÷ø£bÅó® JS|‚R÷ivýáâ€Æé¡è³´IئÑT!§˜•Øª‚¬â@q€wnïCWÄ@JU€ê¯m6]Ï:£âx'+ÒðXvÓ¦Úm=–´7œ $ì“B£~p%ÕŸUþ« N@¼üï~w˜ñø5®—'Ôe»¤5ã//€ž~‰Tþ›Å7•#¤× Íö pÄ$ùeåì*«ÓŠEØWEÈsßg ¦ûvžSsLpºÊW–âµEWöˬH; ™!CYõZ ÃÄf æ#1W. \uWâ\,\Çf j’<qTbên›Î[vxx£ë 'ö¨1›˜ÀM¼Pÿ H)ƒêêŒA7s,|F“ 꺸k³9Ìö*ç®;Ö!Ö$Eiž•¹ÒÚ†ýóéÝû¾ÕS®ó$’NÝäŸz¤5r¦ãÄÃD÷Üø!°ø‡Ô&@m™Ì^Ãä­d q5Lnÿ N;.6½·N|#ä"1Nƒx“ã<3('&ñßt  ~ªu”1Tb㫨9ê–›–bìd$ߣ=#ÕãÒmU¯eí$EFù5ýYô櫨æ왍Ǘ±ssM]·á¿0ÕåJRÓªîiƒ+O58ÖñªŠÒx" \µâá¨i’¤i —Ö ” M+M¤ë9‚‰A¦°Qõ¾ßøK~¼Ã‘g…Ö´~÷Ï[3GUœÒ½#…kàÔ®Ò”‰³·dWV‰IP‰Ú8u¹”E ÖqLj¾êÕCBš{A^Âß;–¨`¯¬ìö ˼ ×tìø.tƐm*n¨y4o&Àx¥n¦×î‡aupáÛj8¿m›è¶ã!o½;ß0y^ý×^EÑ¿ÒjzŒ­)vÚÑnÄL …^ªô× ‡—‚3k Îý­hï]içå–îÏ*÷ñþ»Ô CÒjøjÍznˆ´ ¹#b'Fô‹ ‰v¥'’à'T´ƒHýÍ%M‰ ƒ&ÆÇŒï1 ‘ –Þ ‰i¬s žR-Ÿ kŠ¬á¬7:þ 0ŒÅÒÕ/aÙ¬ÃÝ#Úøœ ©aiVc‰. ¹¦ãµ” ›Yg¦›ÆÎýº°f³7ƒhá·¸­}&D9¡ÂsÉÙÞèŠõØàC™¨ñbFC|´Ü(ŸƒÚÒ-%»'a Ì¿)ËÇn¿úÿ ÞŽX…4ÊÅH^ôΑí@ù¹Eh¶“L8Çjù ¼ÎåVªóR©Ï5uà V4lZß®=€xÖŸ–ÑÈ ÷”¨°¾__yM1tÉ?uÆþIkÄgæ@þ[¢†°XÃJ£j·:nkÅ¢u ‘}âGzö­/IµèŠ¬¼48q¦F°ŽR¼=ûì{´¯RýicS ÕÛ íNtÍÙï£,w4rêì®»~x(©Uñ§#Ñ&œÕ¤>ÎåÍÓ9’Ö{9eV­[Öjâ²ãu]˜å2›qÑšÕJç0€sÄ|Êëè0튔bÁ>“{×_F`Ø©ºê:µä,v¤ðfc1±"«ÔÍän1#=· Âøv~H½ÐßA¾¿Ü€Óš]Õ; I¾÷ç‚Qi†î¹9ywÔKG˜áñ zQY—§ÃÕZ07§X‚ Áh;ÁM)iÌCH-¯T‘ë|A0{Ò½LÚ–TâÖkÜ’dÀ“rmm»”جPF³ÖcbE§T€ÒxKºû’Ó®7±²(\4ŽÃ¸Uu@j™yĵ;³µ!Á¢b.W¤=mõ´êµK k ¸K^ÜÛ#p*Ü14qkZç5ïë †°5Ï%ÍÛ<Õ¤×Ô¥ê†C Õ´¼ú$ƒÖ“”]Ù¬qÞÚ[4©ý!ûÏ—Áb쳐XµA¬â~`›Çr¸8ìùÝ䫦<>ä÷«?xs´ÇÑ /á;¹øüÊÈÙà{"@Žïzâ¬[âß‚ U_<ÇŸ½4èN˜ú61®qŠu ¦þF£»äJ_ˆÙÎ~ ÞAã–Ý„Ï—rŠD;xTž‘ô`É«…suãO`?³à™ô Lý#Íc5öoæØ‚y´´÷«ZR§<&JÇ+éâô´€i!Àˆ0æAoàðLèÖ-2ŸõW.’t^–(KÁmHµV@xÜÇy®Ñø­â^:Ú3w· 7½¹°ñ¸â¹®:',«Mœ—n­Á+Ãbš LÈ‘ÄnRÓÅœ%¦²‰¨ùQ:¤f‚ "PÕtô¸…cæl…&˜Ú˜Ôkv‹ž+vŠ,=¢v­6—Xy*¥t£«<™:“aîϲ=¦6rO]XI¿Œ÷¤zÚ­›¶ 6÷”w\d ü~v®ˆÌk«^m<ÿ ¢‰Õ\)ùºŽ;… lîÙÅEŠ®cѾ@vnMÏ,¼“ñ•ŽBxðÃzãÇç%3ˆ"}Ù•Åî> BÉú;Ò]V+P˜F_´ßé> Øše|ï‡ÄOmFæÇ ãqÞ$/xÐx­z`ï9"œÜij‚!7.\Td…9M‡•iŽ‹¾‘50ÞŽn¥ß4ÉôO ¹*í^QêËÜÇÌ8=Ž§s‰'ÂëÙ«á%Pú[O †ÅP¯VsŽ°.‰,kc¶ ¬A9n˜XÎ-ÞšN["¹QÕ‰ƒMýÁߺXJæÍaLj¾×Ãmã¾ãÚ uñÒþåQô¦¥ /ÄUx:‚ÍÜ’ Đ©ØÝ3V¨‰ÕnÐ6ó*óúK­«…c ¯U òhsý­jóÔj#,ímŒRµ«lbïUTŒÑ8†Ä0œÏr`ð¡¬É Ї ë"À² ™ 6¥ f¶ ¢ÚoܱԷ-<Àî)†a¶ž'Ú»¨TXqØæ¶÷YÄHy˜9ÈIW­YÀuMFë ºÏ’AqÌ4·/Ú †ô'i$øä­=Ä Ý|öK×40è|È6p‘0§)o¥ctî§H+CA-“ xØ|ÐXŠç l8íºð3Ø:³¤¬KX¯UÿÙ /* 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() })