opusdev/vector-similarity-api

1/* eslint-disable node/no-deprecated-api */2 3'use strict'4 5var test = require('tape')6 7var buffer = require('buffer')8 9var index = require('./')10var safer = require('./safer')11var dangerous = require('./dangerous')12 13/* Inheritance tests */14 15test('Default is Safer', function (t) {16  t.equal(index, safer)17  t.notEqual(safer, dangerous)18  t.notEqual(index, dangerous)19  t.end()20})21 22test('Is not a function', function (t) {23  [index, safer, dangerous].forEach(function (impl) {24    t.equal(typeof impl, 'object')25    t.equal(typeof impl.Buffer, 'object')26  });27  [buffer].forEach(function (impl) {28    t.equal(typeof impl, 'object')29    t.equal(typeof impl.Buffer, 'function')30  })31  t.end()32})33 34test('Constructor throws', function (t) {35  [index, safer, dangerous].forEach(function (impl) {36    t.throws(function () { impl.Buffer() })37    t.throws(function () { impl.Buffer(0) })38    t.throws(function () { impl.Buffer('a') })39    t.throws(function () { impl.Buffer('a', 'utf-8') })40    t.throws(function () { return new impl.Buffer() })41    t.throws(function () { return new impl.Buffer(0) })42    t.throws(function () { return new impl.Buffer('a') })43    t.throws(function () { return new impl.Buffer('a', 'utf-8') })44  })45  t.end()46})47 48test('Safe methods exist', function (t) {49  [index, safer, dangerous].forEach(function (impl) {50    t.equal(typeof impl.Buffer.alloc, 'function', 'alloc')51    t.equal(typeof impl.Buffer.from, 'function', 'from')52  })53  t.end()54})55 56test('Unsafe methods exist only in Dangerous', function (t) {57  [index, safer].forEach(function (impl) {58    t.equal(typeof impl.Buffer.allocUnsafe, 'undefined')59    t.equal(typeof impl.Buffer.allocUnsafeSlow, 'undefined')60  });61  [dangerous].forEach(function (impl) {62    t.equal(typeof impl.Buffer.allocUnsafe, 'function')63    t.equal(typeof impl.Buffer.allocUnsafeSlow, 'function')64  })65  t.end()66})67 68test('Generic methods/properties are defined and equal', function (t) {69  ['poolSize', 'isBuffer', 'concat', 'byteLength'].forEach(function (method) {70    [index, safer, dangerous].forEach(function (impl) {71      t.equal(impl.Buffer[method], buffer.Buffer[method], method)72      t.notEqual(typeof impl.Buffer[method], 'undefined', method)73    })74  })75  t.end()76})77 78test('Built-in buffer static methods/properties are inherited', function (t) {79  Object.keys(buffer).forEach(function (method) {80    if (method === 'SlowBuffer' || method === 'Buffer') return;81    [index, safer, dangerous].forEach(function (impl) {82      t.equal(impl[method], buffer[method], method)83      t.notEqual(typeof impl[method], 'undefined', method)84    })85  })86  t.end()87})88 89test('Built-in Buffer static methods/properties are inherited', function (t) {90  Object.keys(buffer.Buffer).forEach(function (method) {91    if (method === 'allocUnsafe' || method === 'allocUnsafeSlow') return;92    [index, safer, dangerous].forEach(function (impl) {93      t.equal(impl.Buffer[method], buffer.Buffer[method], method)94      t.notEqual(typeof impl.Buffer[method], 'undefined', method)95    })96  })97  t.end()98})99 100test('.prototype property of Buffer is inherited', function (t) {101  [index, safer, dangerous].forEach(function (impl) {102    t.equal(impl.Buffer.prototype, buffer.Buffer.prototype, 'prototype')103    t.notEqual(typeof impl.Buffer.prototype, 'undefined', 'prototype')104  })105  t.end()106})107 108test('All Safer methods are present in Dangerous', function (t) {109  Object.keys(safer).forEach(function (method) {110    if (method === 'Buffer') return;111    [index, safer, dangerous].forEach(function (impl) {112      t.equal(impl[method], safer[method], method)113      if (method !== 'kStringMaxLength') {114        t.notEqual(typeof impl[method], 'undefined', method)115      }116    })117  })118  Object.keys(safer.Buffer).forEach(function (method) {119    [index, safer, dangerous].forEach(function (impl) {120      t.equal(impl.Buffer[method], safer.Buffer[method], method)121      t.notEqual(typeof impl.Buffer[method], 'undefined', method)122    })123  })124  t.end()125})126 127test('Safe methods from Dangerous methods are present in Safer', function (t) {128  Object.keys(dangerous).forEach(function (method) {129    if (method === 'Buffer') return;130    [index, safer, dangerous].forEach(function (impl) {131      t.equal(impl[method], dangerous[method], method)132      if (method !== 'kStringMaxLength') {133        t.notEqual(typeof impl[method], 'undefined', method)134      }135    })136  })137  Object.keys(dangerous.Buffer).forEach(function (method) {138    if (method === 'allocUnsafe' || method === 'allocUnsafeSlow') return;139    [index, safer, dangerous].forEach(function (impl) {140      t.equal(impl.Buffer[method], dangerous.Buffer[method], method)141      t.notEqual(typeof impl.Buffer[method], 'undefined', method)142    })143  })144  t.end()145})146 147/* Behaviour tests */148 149test('Methods return Buffers', function (t) {150  [index, safer, dangerous].forEach(function (impl) {151    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0)))152    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0, 10)))153    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(0, 'a')))154    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(10)))155    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(10, 'x')))156    t.ok(buffer.Buffer.isBuffer(impl.Buffer.alloc(9, 'ab')))157    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('')))158    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('string')))159    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('string', 'utf-8')))160    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64')))161    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from([0, 42, 3])))162    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from(new Uint8Array([0, 42, 3]))))163    t.ok(buffer.Buffer.isBuffer(impl.Buffer.from([])))164  });165  ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {166    t.ok(buffer.Buffer.isBuffer(dangerous.Buffer[method](0)))167    t.ok(buffer.Buffer.isBuffer(dangerous.Buffer[method](10)))168  })169  t.end()170})171 172test('Constructor is buffer.Buffer', function (t) {173  [index, safer, dangerous].forEach(function (impl) {174    t.equal(impl.Buffer.alloc(0).constructor, buffer.Buffer)175    t.equal(impl.Buffer.alloc(0, 10).constructor, buffer.Buffer)176    t.equal(impl.Buffer.alloc(0, 'a').constructor, buffer.Buffer)177    t.equal(impl.Buffer.alloc(10).constructor, buffer.Buffer)178    t.equal(impl.Buffer.alloc(10, 'x').constructor, buffer.Buffer)179    t.equal(impl.Buffer.alloc(9, 'ab').constructor, buffer.Buffer)180    t.equal(impl.Buffer.from('').constructor, buffer.Buffer)181    t.equal(impl.Buffer.from('string').constructor, buffer.Buffer)182    t.equal(impl.Buffer.from('string', 'utf-8').constructor, buffer.Buffer)183    t.equal(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64').constructor, buffer.Buffer)184    t.equal(impl.Buffer.from([0, 42, 3]).constructor, buffer.Buffer)185    t.equal(impl.Buffer.from(new Uint8Array([0, 42, 3])).constructor, buffer.Buffer)186    t.equal(impl.Buffer.from([]).constructor, buffer.Buffer)187  });188  [0, 10, 100].forEach(function (arg) {189    t.equal(dangerous.Buffer.allocUnsafe(arg).constructor, buffer.Buffer)190    t.equal(dangerous.Buffer.allocUnsafeSlow(arg).constructor, buffer.SlowBuffer(0).constructor)191  })192  t.end()193})194 195test('Invalid calls throw', function (t) {196  [index, safer, dangerous].forEach(function (impl) {197    t.throws(function () { impl.Buffer.from(0) })198    t.throws(function () { impl.Buffer.from(10) })199    t.throws(function () { impl.Buffer.from(10, 'utf-8') })200    t.throws(function () { impl.Buffer.from('string', 'invalid encoding') })201    t.throws(function () { impl.Buffer.from(-10) })202    t.throws(function () { impl.Buffer.from(1e90) })203    t.throws(function () { impl.Buffer.from(Infinity) })204    t.throws(function () { impl.Buffer.from(-Infinity) })205    t.throws(function () { impl.Buffer.from(NaN) })206    t.throws(function () { impl.Buffer.from(null) })207    t.throws(function () { impl.Buffer.from(undefined) })208    t.throws(function () { impl.Buffer.from() })209    t.throws(function () { impl.Buffer.from({}) })210    t.throws(function () { impl.Buffer.alloc('') })211    t.throws(function () { impl.Buffer.alloc('string') })212    t.throws(function () { impl.Buffer.alloc('string', 'utf-8') })213    t.throws(function () { impl.Buffer.alloc('b25ldHdvdGhyZWU=', 'base64') })214    t.throws(function () { impl.Buffer.alloc(-10) })215    t.throws(function () { impl.Buffer.alloc(1e90) })216    t.throws(function () { impl.Buffer.alloc(2 * (1 << 30)) })217    t.throws(function () { impl.Buffer.alloc(Infinity) })218    t.throws(function () { impl.Buffer.alloc(-Infinity) })219    t.throws(function () { impl.Buffer.alloc(null) })220    t.throws(function () { impl.Buffer.alloc(undefined) })221    t.throws(function () { impl.Buffer.alloc() })222    t.throws(function () { impl.Buffer.alloc([]) })223    t.throws(function () { impl.Buffer.alloc([0, 42, 3]) })224    t.throws(function () { impl.Buffer.alloc({}) })225  });226  ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {227    t.throws(function () { dangerous.Buffer[method]('') })228    t.throws(function () { dangerous.Buffer[method]('string') })229    t.throws(function () { dangerous.Buffer[method]('string', 'utf-8') })230    t.throws(function () { dangerous.Buffer[method](2 * (1 << 30)) })231    t.throws(function () { dangerous.Buffer[method](Infinity) })232    if (dangerous.Buffer[method] === buffer.Buffer.allocUnsafe) {233      t.skip('Skipping, older impl of allocUnsafe coerced negative sizes to 0')234    } else {235      t.throws(function () { dangerous.Buffer[method](-10) })236      t.throws(function () { dangerous.Buffer[method](-1e90) })237      t.throws(function () { dangerous.Buffer[method](-Infinity) })238    }239    t.throws(function () { dangerous.Buffer[method](null) })240    t.throws(function () { dangerous.Buffer[method](undefined) })241    t.throws(function () { dangerous.Buffer[method]() })242    t.throws(function () { dangerous.Buffer[method]([]) })243    t.throws(function () { dangerous.Buffer[method]([0, 42, 3]) })244    t.throws(function () { dangerous.Buffer[method]({}) })245  })246  t.end()247})248 249test('Buffers have appropriate lengths', function (t) {250  [index, safer, dangerous].forEach(function (impl) {251    t.equal(impl.Buffer.alloc(0).length, 0)252    t.equal(impl.Buffer.alloc(10).length, 10)253    t.equal(impl.Buffer.from('').length, 0)254    t.equal(impl.Buffer.from('string').length, 6)255    t.equal(impl.Buffer.from('string', 'utf-8').length, 6)256    t.equal(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64').length, 11)257    t.equal(impl.Buffer.from([0, 42, 3]).length, 3)258    t.equal(impl.Buffer.from(new Uint8Array([0, 42, 3])).length, 3)259    t.equal(impl.Buffer.from([]).length, 0)260  });261  ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {262    t.equal(dangerous.Buffer[method](0).length, 0)263    t.equal(dangerous.Buffer[method](10).length, 10)264  })265  t.end()266})267 268test('Buffers have appropriate lengths (2)', function (t) {269  t.equal(index.Buffer.alloc, safer.Buffer.alloc)270  t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)271  var ok = true;272  [ safer.Buffer.alloc,273    dangerous.Buffer.allocUnsafe,274    dangerous.Buffer.allocUnsafeSlow275  ].forEach(function (method) {276    for (var i = 0; i < 1e2; i++) {277      var length = Math.round(Math.random() * 1e5)278      var buf = method(length)279      if (!buffer.Buffer.isBuffer(buf)) ok = false280      if (buf.length !== length) ok = false281    }282  })283  t.ok(ok)284  t.end()285})286 287test('.alloc(size) is zero-filled and has correct length', function (t) {288  t.equal(index.Buffer.alloc, safer.Buffer.alloc)289  t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)290  var ok = true291  for (var i = 0; i < 1e2; i++) {292    var length = Math.round(Math.random() * 2e6)293    var buf = index.Buffer.alloc(length)294    if (!buffer.Buffer.isBuffer(buf)) ok = false295    if (buf.length !== length) ok = false296    var j297    for (j = 0; j < length; j++) {298      if (buf[j] !== 0) ok = false299    }300    buf.fill(1)301    for (j = 0; j < length; j++) {302      if (buf[j] !== 1) ok = false303    }304  }305  t.ok(ok)306  t.end()307})308 309test('.allocUnsafe / .allocUnsafeSlow are fillable and have correct lengths', function (t) {310  ['allocUnsafe', 'allocUnsafeSlow'].forEach(function (method) {311    var ok = true312    for (var i = 0; i < 1e2; i++) {313      var length = Math.round(Math.random() * 2e6)314      var buf = dangerous.Buffer[method](length)315      if (!buffer.Buffer.isBuffer(buf)) ok = false316      if (buf.length !== length) ok = false317      buf.fill(0, 0, length)318      var j319      for (j = 0; j < length; j++) {320        if (buf[j] !== 0) ok = false321      }322      buf.fill(1, 0, length)323      for (j = 0; j < length; j++) {324        if (buf[j] !== 1) ok = false325      }326    }327    t.ok(ok, method)328  })329  t.end()330})331 332test('.alloc(size, fill) is `fill`-filled', function (t) {333  t.equal(index.Buffer.alloc, safer.Buffer.alloc)334  t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)335  var ok = true336  for (var i = 0; i < 1e2; i++) {337    var length = Math.round(Math.random() * 2e6)338    var fill = Math.round(Math.random() * 255)339    var buf = index.Buffer.alloc(length, fill)340    if (!buffer.Buffer.isBuffer(buf)) ok = false341    if (buf.length !== length) ok = false342    for (var j = 0; j < length; j++) {343      if (buf[j] !== fill) ok = false344    }345  }346  t.ok(ok)347  t.end()348})349 350test('.alloc(size, fill) is `fill`-filled', function (t) {351  t.equal(index.Buffer.alloc, safer.Buffer.alloc)352  t.equal(index.Buffer.alloc, dangerous.Buffer.alloc)353  var ok = true354  for (var i = 0; i < 1e2; i++) {355    var length = Math.round(Math.random() * 2e6)356    var fill = Math.round(Math.random() * 255)357    var buf = index.Buffer.alloc(length, fill)358    if (!buffer.Buffer.isBuffer(buf)) ok = false359    if (buf.length !== length) ok = false360    for (var j = 0; j < length; j++) {361      if (buf[j] !== fill) ok = false362    }363  }364  t.ok(ok)365  t.deepEqual(index.Buffer.alloc(9, 'a'), index.Buffer.alloc(9, 97))366  t.notDeepEqual(index.Buffer.alloc(9, 'a'), index.Buffer.alloc(9, 98))367 368  var tmp = new buffer.Buffer(2)369  tmp.fill('ok')370  if (tmp[1] === tmp[0]) {371    // Outdated Node.js372    t.deepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('ooooo'))373  } else {374    t.deepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('okoko'))375  }376  t.notDeepEqual(index.Buffer.alloc(5, 'ok'), index.Buffer.from('kokok'))377 378  t.end()379})380 381test('safer.Buffer.from returns results same as Buffer constructor', function (t) {382  [index, safer, dangerous].forEach(function (impl) {383    t.deepEqual(impl.Buffer.from(''), new buffer.Buffer(''))384    t.deepEqual(impl.Buffer.from('string'), new buffer.Buffer('string'))385    t.deepEqual(impl.Buffer.from('string', 'utf-8'), new buffer.Buffer('string', 'utf-8'))386    t.deepEqual(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64'), new buffer.Buffer('b25ldHdvdGhyZWU=', 'base64'))387    t.deepEqual(impl.Buffer.from([0, 42, 3]), new buffer.Buffer([0, 42, 3]))388    t.deepEqual(impl.Buffer.from(new Uint8Array([0, 42, 3])), new buffer.Buffer(new Uint8Array([0, 42, 3])))389    t.deepEqual(impl.Buffer.from([]), new buffer.Buffer([]))390  })391  t.end()392})393 394test('safer.Buffer.from returns consistent results', function (t) {395  [index, safer, dangerous].forEach(function (impl) {396    t.deepEqual(impl.Buffer.from(''), impl.Buffer.alloc(0))397    t.deepEqual(impl.Buffer.from([]), impl.Buffer.alloc(0))398    t.deepEqual(impl.Buffer.from(new Uint8Array([])), impl.Buffer.alloc(0))399    t.deepEqual(impl.Buffer.from('string', 'utf-8'), impl.Buffer.from('string'))400    t.deepEqual(impl.Buffer.from('string'), impl.Buffer.from([115, 116, 114, 105, 110, 103]))401    t.deepEqual(impl.Buffer.from('string'), impl.Buffer.from(impl.Buffer.from('string')))402    t.deepEqual(impl.Buffer.from('b25ldHdvdGhyZWU=', 'base64'), impl.Buffer.from('onetwothree'))403    t.notDeepEqual(impl.Buffer.from('b25ldHdvdGhyZWU='), impl.Buffer.from('onetwothree'))404  })405  t.end()406})407