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language: node_js
node_js:
- 'node'
sudo: false
env:
global:
- secure: AUsK+8fYSpwIMHcVt8Mu9SpG9RPHp4XDAwCQfpU3d5U65q8OVVC6C+XjvnNmEd2PoEJRHem8ZXEyRVfGM1sttKZLZP70TEKZOpOiRQnZiTQCAJ92TfGsDj/F4LoWSjUZUpfeg9b3iSp8G5dVw3+q9QZPIu6eykASK6bfcg//Cyg=
- secure: eQBKJWu7XbhAN4ZvOOhMenC0IPpoYj+wZVVzzsLwUppfJqlrHV0CUW8rJdvZNiaGhYhoyHTnAcynpTE5kZfg3XjevOvF8PGY5wUYCki9BI+rp+pvVPZE/DNUAQpFR2gd2nxMJ4kYv7GVb6i/DfuqJa0h8IuY4zcMuKWwbQd3Az8=

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# Authors
#### Ordered by first contribution.
- Romain Beauxis (toots@rastageeks.org)
- Tobias Koppers (tobias.koppers@googlemail.com)
- Janus (ysangkok@gmail.com)
- Rainer Dreyer (rdrey1@gmail.com)
- Tõnis Tiigi (tonistiigi@gmail.com)
- James Halliday (mail@substack.net)
- Michael Williamson (mike@zwobble.org)
- elliottcable (github@elliottcable.name)
- rafael (rvalle@livelens.net)
- Andrew Kelley (superjoe30@gmail.com)
- Andreas Madsen (amwebdk@gmail.com)
- Mike Brevoort (mike.brevoort@pearson.com)
- Brian White (mscdex@mscdex.net)
- Feross Aboukhadijeh (feross@feross.org)
- Ruben Verborgh (ruben@verborgh.org)
- eliang (eliang.cs@gmail.com)
- Jesse Tane (jesse.tane@gmail.com)
- Alfonso Boza (alfonso@cloud.com)
- Mathias Buus (mathiasbuus@gmail.com)
- Devon Govett (devongovett@gmail.com)
- Daniel Cousens (github@dcousens.com)
- Joseph Dykstra (josephdykstra@gmail.com)
- Parsha Pourkhomami (parshap+git@gmail.com)
- Damjan Košir (damjan.kosir@gmail.com)
- daverayment (dave.rayment@gmail.com)
- kawanet (u-suke@kawa.net)
- Linus Unnebäck (linus@folkdatorn.se)
- Nolan Lawson (nolan.lawson@gmail.com)
- Calvin Metcalf (calvin.metcalf@gmail.com)
- Koki Takahashi (hakatasiloving@gmail.com)
- Guy Bedford (guybedford@gmail.com)
- Jan Schär (jscissr@gmail.com)
- RaulTsc (tomescu.raul@gmail.com)
- Matthieu Monsch (monsch@alum.mit.edu)
- Dan Ehrenberg (littledan@chromium.org)
- Kirill Fomichev (fanatid@ya.ru)
- Yusuke Kawasaki (u-suke@kawa.net)
- DC (dcposch@dcpos.ch)
#### Generated by bin/update-authors.sh.

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The MIT License (MIT)
Copyright (c) Feross Aboukhadijeh, and other contributors.
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
THE SOFTWARE.

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# buffer [![travis][travis-image]][travis-url] [![npm][npm-image]][npm-url] [![downloads][downloads-image]][npm-url]
#### The buffer module from [node.js](https://nodejs.org/), for the browser.
[![saucelabs][saucelabs-image]][saucelabs-url]
[travis-image]: https://img.shields.io/travis/feross/buffer/master.svg
[travis-url]: https://travis-ci.org/feross/buffer
[npm-image]: https://img.shields.io/npm/v/buffer.svg
[npm-url]: https://npmjs.org/package/buffer
[downloads-image]: https://img.shields.io/npm/dm/buffer.svg
[saucelabs-image]: https://saucelabs.com/browser-matrix/buffer.svg
[saucelabs-url]: https://saucelabs.com/u/buffer
With [browserify](http://browserify.org), simply `require('buffer')` or use the `Buffer` global and you will get this module.
The goal is to provide an API that is 100% identical to
[node's Buffer API](https://nodejs.org/api/buffer.html). Read the
[official docs](https://nodejs.org/api/buffer.html) for the full list of properties,
instance methods, and class methods that are supported.
## features
- Manipulate binary data like a boss, in all browsers -- even IE6!
- Super fast. Backed by Typed Arrays (`Uint8Array`/`ArrayBuffer`, not `Object`)
- Extremely small bundle size (**5.04KB minified + gzipped**, 35.5KB with comments)
- Excellent browser support (IE 6+, Chrome 4+, Firefox 3+, Safari 5.1+, Opera 11+, iOS, etc.)
- Preserves Node API exactly, with one minor difference (see below)
- Square-bracket `buf[4]` notation works, even in old browsers like IE6!
- Does not modify any browser prototypes or put anything on `window`
- Comprehensive test suite (including all buffer tests from node.js core)
## install
To use this module directly (without browserify), install it:
```bash
npm install buffer
```
This module was previously called **native-buffer-browserify**, but please use **buffer**
from now on.
A standalone bundle is available [here](https://wzrd.in/standalone/buffer), for non-browserify users.
## usage
The module's API is identical to node's `Buffer` API. Read the
[official docs](https://nodejs.org/api/buffer.html) for the full list of properties,
instance methods, and class methods that are supported.
As mentioned above, `require('buffer')` or use the `Buffer` global with
[browserify](http://browserify.org) and this module will automatically be included
in your bundle. Almost any npm module will work in the browser, even if it assumes that
the node `Buffer` API will be available.
To depend on this module explicitly (without browserify), require it like this:
```js
var Buffer = require('buffer/').Buffer // note: the trailing slash is important!
```
To require this module explicitly, use `require('buffer/')` which tells the node.js module
lookup algorithm (also used by browserify) to use the **npm module** named `buffer`
instead of the **node.js core** module named `buffer`!
## how does it work?
The Buffer constructor returns instances of `Uint8Array` that have their prototype
changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of `Uint8Array`,
so the returned instances will have all the node `Buffer` methods and the
`Uint8Array` methods. Square bracket notation works as expected -- it returns a
single octet.
The `Uint8Array` prototype remains unmodified.
## one minor difference
#### In old browsers, `buf.slice()` does not modify parent buffer's memory
If you only support modern browsers (specifically, those with typed array support),
then this issue does not affect you. If you support super old browsers, then read on.
In node, the `slice()` method returns a new `Buffer` that shares underlying memory
with the original Buffer. When you modify one buffer, you modify the other.
[Read more.](https://nodejs.org/api/buffer.html#buffer_buf_slice_start_end)
In browsers with typed array support, this `Buffer` implementation supports this
behavior. In browsers without typed arrays, an alternate buffer implementation is
used that is based on `Object` which has no mechanism to point separate
`Buffer`s to the same underlying slab of memory.
You can see which browser versions lack typed array support
[here](https://github.com/feross/buffer/blob/master/index.js#L22-L48).
## tracking the latest node api
This module tracks the Buffer API in the latest (unstable) version of node.js. The Buffer
API is considered **stable** in the
[node stability index](https://nodejs.org/docs/latest/api/documentation.html#documentation_stability_index),
so it is unlikely that there will ever be breaking changes.
Nonetheless, when/if the Buffer API changes in node, this module's API will change
accordingly.
## related packages
- [`buffer-equals`](https://www.npmjs.com/package/buffer-equals) - Node.js 0.12 buffer.equals() ponyfill
- [`buffer-reverse`](https://www.npmjs.com/package/buffer-reverse) - A lite module for reverse-operations on buffers
- [`buffer-xor`](https://www.npmjs.com/package/buffer-xor) - A simple module for bitwise-xor on buffers
- [`is-buffer`](https://www.npmjs.com/package/is-buffer) - Determine if an object is a Buffer without including the whole `Buffer` package
- [`typedarray-to-buffer`](https://www.npmjs.com/package/typedarray-to-buffer) - Convert a typed array to a Buffer without a copy
## performance
See perf tests in `/perf`.
`BrowserBuffer` is the browser `buffer` module (this repo). `Uint8Array` is included as a
sanity check (since `BrowserBuffer` uses `Uint8Array` under the hood, `Uint8Array` will
always be at least a bit faster). Finally, `NodeBuffer` is the node.js buffer module,
which is included to compare against.
NOTE: Performance has improved since these benchmarks were taken. PR welcoem to update the README.
### Chrome 38
| Method | Operations | Accuracy | Sampled | Fastest |
|:-------|:-----------|:---------|:--------|:-------:|
| BrowserBuffer#bracket-notation | 11,457,464 ops/sec | ±0.86% | 66 | ✓ |
| Uint8Array#bracket-notation | 10,824,332 ops/sec | ±0.74% | 65 | |
| | | | |
| BrowserBuffer#concat | 450,532 ops/sec | ±0.76% | 68 | |
| Uint8Array#concat | 1,368,911 ops/sec | ±1.50% | 62 | ✓ |
| | | | |
| BrowserBuffer#copy(16000) | 903,001 ops/sec | ±0.96% | 67 | |
| Uint8Array#copy(16000) | 1,422,441 ops/sec | ±1.04% | 66 | ✓ |
| | | | |
| BrowserBuffer#copy(16) | 11,431,358 ops/sec | ±0.46% | 69 | |
| Uint8Array#copy(16) | 13,944,163 ops/sec | ±1.12% | 68 | ✓ |
| | | | |
| BrowserBuffer#new(16000) | 106,329 ops/sec | ±6.70% | 44 | |
| Uint8Array#new(16000) | 131,001 ops/sec | ±2.85% | 31 | ✓ |
| | | | |
| BrowserBuffer#new(16) | 1,554,491 ops/sec | ±1.60% | 65 | |
| Uint8Array#new(16) | 6,623,930 ops/sec | ±1.66% | 65 | ✓ |
| | | | |
| BrowserBuffer#readDoubleBE | 112,830 ops/sec | ±0.51% | 69 | ✓ |
| DataView#getFloat64 | 93,500 ops/sec | ±0.57% | 68 | |
| | | | |
| BrowserBuffer#readFloatBE | 146,678 ops/sec | ±0.95% | 68 | ✓ |
| DataView#getFloat32 | 99,311 ops/sec | ±0.41% | 67 | |
| | | | |
| BrowserBuffer#readUInt32LE | 843,214 ops/sec | ±0.70% | 69 | ✓ |
| DataView#getUint32 | 103,024 ops/sec | ±0.64% | 67 | |
| | | | |
| BrowserBuffer#slice | 1,013,941 ops/sec | ±0.75% | 67 | |
| Uint8Array#subarray | 1,903,928 ops/sec | ±0.53% | 67 | ✓ |
| | | | |
| BrowserBuffer#writeFloatBE | 61,387 ops/sec | ±0.90% | 67 | |
| DataView#setFloat32 | 141,249 ops/sec | ±0.40% | 66 | ✓ |
### Firefox 33
| Method | Operations | Accuracy | Sampled | Fastest |
|:-------|:-----------|:---------|:--------|:-------:|
| BrowserBuffer#bracket-notation | 20,800,421 ops/sec | ±1.84% | 60 | |
| Uint8Array#bracket-notation | 20,826,235 ops/sec | ±2.02% | 61 | ✓ |
| | | | |
| BrowserBuffer#concat | 153,076 ops/sec | ±2.32% | 61 | |
| Uint8Array#concat | 1,255,674 ops/sec | ±8.65% | 52 | ✓ |
| | | | |
| BrowserBuffer#copy(16000) | 1,105,312 ops/sec | ±1.16% | 63 | |
| Uint8Array#copy(16000) | 1,615,911 ops/sec | ±0.55% | 66 | ✓ |
| | | | |
| BrowserBuffer#copy(16) | 16,357,599 ops/sec | ±0.73% | 68 | |
| Uint8Array#copy(16) | 31,436,281 ops/sec | ±1.05% | 68 | ✓ |
| | | | |
| BrowserBuffer#new(16000) | 52,995 ops/sec | ±6.01% | 35 | |
| Uint8Array#new(16000) | 87,686 ops/sec | ±5.68% | 45 | ✓ |
| | | | |
| BrowserBuffer#new(16) | 252,031 ops/sec | ±1.61% | 66 | |
| Uint8Array#new(16) | 8,477,026 ops/sec | ±0.49% | 68 | ✓ |
| | | | |
| BrowserBuffer#readDoubleBE | 99,871 ops/sec | ±0.41% | 69 | |
| DataView#getFloat64 | 285,663 ops/sec | ±0.70% | 68 | ✓ |
| | | | |
| BrowserBuffer#readFloatBE | 115,540 ops/sec | ±0.42% | 69 | |
| DataView#getFloat32 | 288,722 ops/sec | ±0.82% | 68 | ✓ |
| | | | |
| BrowserBuffer#readUInt32LE | 633,926 ops/sec | ±1.08% | 67 | ✓ |
| DataView#getUint32 | 294,808 ops/sec | ±0.79% | 64 | |
| | | | |
| BrowserBuffer#slice | 349,425 ops/sec | ±0.46% | 69 | |
| Uint8Array#subarray | 5,965,819 ops/sec | ±0.60% | 65 | ✓ |
| | | | |
| BrowserBuffer#writeFloatBE | 59,980 ops/sec | ±0.41% | 67 | |
| DataView#setFloat32 | 317,634 ops/sec | ±0.63% | 68 | ✓ |
### Safari 8
| Method | Operations | Accuracy | Sampled | Fastest |
|:-------|:-----------|:---------|:--------|:-------:|
| BrowserBuffer#bracket-notation | 10,279,729 ops/sec | ±2.25% | 56 | ✓ |
| Uint8Array#bracket-notation | 10,030,767 ops/sec | ±2.23% | 59 | |
| | | | |
| BrowserBuffer#concat | 144,138 ops/sec | ±1.38% | 65 | |
| Uint8Array#concat | 4,950,764 ops/sec | ±1.70% | 63 | ✓ |
| | | | |
| BrowserBuffer#copy(16000) | 1,058,548 ops/sec | ±1.51% | 64 | |
| Uint8Array#copy(16000) | 1,409,666 ops/sec | ±1.17% | 65 | ✓ |
| | | | |
| BrowserBuffer#copy(16) | 6,282,529 ops/sec | ±1.88% | 58 | |
| Uint8Array#copy(16) | 11,907,128 ops/sec | ±2.87% | 58 | ✓ |
| | | | |
| BrowserBuffer#new(16000) | 101,663 ops/sec | ±3.89% | 57 | |
| Uint8Array#new(16000) | 22,050,818 ops/sec | ±6.51% | 46 | ✓ |
| | | | |
| BrowserBuffer#new(16) | 176,072 ops/sec | ±2.13% | 64 | |
| Uint8Array#new(16) | 24,385,731 ops/sec | ±5.01% | 51 | ✓ |
| | | | |
| BrowserBuffer#readDoubleBE | 41,341 ops/sec | ±1.06% | 67 | |
| DataView#getFloat64 | 322,280 ops/sec | ±0.84% | 68 | ✓ |
| | | | |
| BrowserBuffer#readFloatBE | 46,141 ops/sec | ±1.06% | 65 | |
| DataView#getFloat32 | 337,025 ops/sec | ±0.43% | 69 | ✓ |
| | | | |
| BrowserBuffer#readUInt32LE | 151,551 ops/sec | ±1.02% | 66 | |
| DataView#getUint32 | 308,278 ops/sec | ±0.94% | 67 | ✓ |
| | | | |
| BrowserBuffer#slice | 197,365 ops/sec | ±0.95% | 66 | |
| Uint8Array#subarray | 9,558,024 ops/sec | ±3.08% | 58 | ✓ |
| | | | |
| BrowserBuffer#writeFloatBE | 17,518 ops/sec | ±1.03% | 63 | |
| DataView#setFloat32 | 319,751 ops/sec | ±0.48% | 68 | ✓ |
### Node 0.11.14
| Method | Operations | Accuracy | Sampled | Fastest |
|:-------|:-----------|:---------|:--------|:-------:|
| BrowserBuffer#bracket-notation | 10,489,828 ops/sec | ±3.25% | 90 | |
| Uint8Array#bracket-notation | 10,534,884 ops/sec | ±0.81% | 92 | ✓ |
| NodeBuffer#bracket-notation | 10,389,910 ops/sec | ±0.97% | 87 | |
| | | | |
| BrowserBuffer#concat | 487,830 ops/sec | ±2.58% | 88 | |
| Uint8Array#concat | 1,814,327 ops/sec | ±1.28% | 88 | ✓ |
| NodeBuffer#concat | 1,636,523 ops/sec | ±1.88% | 73 | |
| | | | |
| BrowserBuffer#copy(16000) | 1,073,665 ops/sec | ±0.77% | 90 | |
| Uint8Array#copy(16000) | 1,348,517 ops/sec | ±0.84% | 89 | ✓ |
| NodeBuffer#copy(16000) | 1,289,533 ops/sec | ±0.82% | 93 | |
| | | | |
| BrowserBuffer#copy(16) | 12,782,706 ops/sec | ±0.74% | 85 | |
| Uint8Array#copy(16) | 14,180,427 ops/sec | ±0.93% | 92 | ✓ |
| NodeBuffer#copy(16) | 11,083,134 ops/sec | ±1.06% | 89 | |
| | | | |
| BrowserBuffer#new(16000) | 141,678 ops/sec | ±3.30% | 67 | |
| Uint8Array#new(16000) | 161,491 ops/sec | ±2.96% | 60 | |
| NodeBuffer#new(16000) | 292,699 ops/sec | ±3.20% | 55 | ✓ |
| | | | |
| BrowserBuffer#new(16) | 1,655,466 ops/sec | ±2.41% | 82 | |
| Uint8Array#new(16) | 14,399,926 ops/sec | ±0.91% | 94 | ✓ |
| NodeBuffer#new(16) | 3,894,696 ops/sec | ±0.88% | 92 | |
| | | | |
| BrowserBuffer#readDoubleBE | 109,582 ops/sec | ±0.75% | 93 | ✓ |
| DataView#getFloat64 | 91,235 ops/sec | ±0.81% | 90 | |
| NodeBuffer#readDoubleBE | 88,593 ops/sec | ±0.96% | 81 | |
| | | | |
| BrowserBuffer#readFloatBE | 139,854 ops/sec | ±1.03% | 85 | ✓ |
| DataView#getFloat32 | 98,744 ops/sec | ±0.80% | 89 | |
| NodeBuffer#readFloatBE | 92,769 ops/sec | ±0.94% | 93 | |
| | | | |
| BrowserBuffer#readUInt32LE | 710,861 ops/sec | ±0.82% | 92 | |
| DataView#getUint32 | 117,893 ops/sec | ±0.84% | 91 | |
| NodeBuffer#readUInt32LE | 851,412 ops/sec | ±0.72% | 93 | ✓ |
| | | | |
| BrowserBuffer#slice | 1,673,877 ops/sec | ±0.73% | 94 | |
| Uint8Array#subarray | 6,919,243 ops/sec | ±0.67% | 90 | ✓ |
| NodeBuffer#slice | 4,617,604 ops/sec | ±0.79% | 93 | |
| | | | |
| BrowserBuffer#writeFloatBE | 66,011 ops/sec | ±0.75% | 93 | |
| DataView#setFloat32 | 127,760 ops/sec | ±0.72% | 93 | ✓ |
| NodeBuffer#writeFloatBE | 103,352 ops/sec | ±0.83% | 93 | |
### iojs 1.8.1
| Method | Operations | Accuracy | Sampled | Fastest |
|:-------|:-----------|:---------|:--------|:-------:|
| BrowserBuffer#bracket-notation | 10,990,488 ops/sec | ±1.11% | 91 | |
| Uint8Array#bracket-notation | 11,268,757 ops/sec | ±0.65% | 97 | |
| NodeBuffer#bracket-notation | 11,353,260 ops/sec | ±0.83% | 94 | ✓ |
| | | | |
| BrowserBuffer#concat | 378,954 ops/sec | ±0.74% | 94 | |
| Uint8Array#concat | 1,358,288 ops/sec | ±0.97% | 87 | |
| NodeBuffer#concat | 1,934,050 ops/sec | ±1.11% | 78 | ✓ |
| | | | |
| BrowserBuffer#copy(16000) | 894,538 ops/sec | ±0.56% | 84 | |
| Uint8Array#copy(16000) | 1,442,656 ops/sec | ±0.71% | 96 | |
| NodeBuffer#copy(16000) | 1,457,898 ops/sec | ±0.53% | 92 | ✓ |
| | | | |
| BrowserBuffer#copy(16) | 12,870,457 ops/sec | ±0.67% | 95 | |
| Uint8Array#copy(16) | 16,643,989 ops/sec | ±0.61% | 93 | ✓ |
| NodeBuffer#copy(16) | 14,885,848 ops/sec | ±0.74% | 94 | |
| | | | |
| BrowserBuffer#new(16000) | 109,264 ops/sec | ±4.21% | 63 | |
| Uint8Array#new(16000) | 138,916 ops/sec | ±1.87% | 61 | |
| NodeBuffer#new(16000) | 281,449 ops/sec | ±3.58% | 51 | ✓ |
| | | | |
| BrowserBuffer#new(16) | 1,362,935 ops/sec | ±0.56% | 99 | |
| Uint8Array#new(16) | 6,193,090 ops/sec | ±0.64% | 95 | ✓ |
| NodeBuffer#new(16) | 4,745,425 ops/sec | ±1.56% | 90 | |
| | | | |
| BrowserBuffer#readDoubleBE | 118,127 ops/sec | ±0.59% | 93 | ✓ |
| DataView#getFloat64 | 107,332 ops/sec | ±0.65% | 91 | |
| NodeBuffer#readDoubleBE | 116,274 ops/sec | ±0.94% | 95 | |
| | | | |
| BrowserBuffer#readFloatBE | 150,326 ops/sec | ±0.58% | 95 | ✓ |
| DataView#getFloat32 | 110,541 ops/sec | ±0.57% | 98 | |
| NodeBuffer#readFloatBE | 121,599 ops/sec | ±0.60% | 87 | |
| | | | |
| BrowserBuffer#readUInt32LE | 814,147 ops/sec | ±0.62% | 93 | |
| DataView#getUint32 | 137,592 ops/sec | ±0.64% | 90 | |
| NodeBuffer#readUInt32LE | 931,650 ops/sec | ±0.71% | 96 | ✓ |
| | | | |
| BrowserBuffer#slice | 878,590 ops/sec | ±0.68% | 93 | |
| Uint8Array#subarray | 2,843,308 ops/sec | ±1.02% | 90 | |
| NodeBuffer#slice | 4,998,316 ops/sec | ±0.68% | 90 | ✓ |
| | | | |
| BrowserBuffer#writeFloatBE | 65,927 ops/sec | ±0.74% | 93 | |
| DataView#setFloat32 | 139,823 ops/sec | ±0.97% | 89 | ✓ |
| NodeBuffer#writeFloatBE | 135,763 ops/sec | ±0.65% | 96 | |
| | | | |
## Testing the project
First, install the project:
npm install
Then, to run tests in Node.js, run:
npm run test-node
To test locally in a browser, you can run:
npm run test-browser-local
This will print out a URL that you can then open in a browser to run the tests, using [Zuul](https://github.com/defunctzombie/zuul).
To run automated browser tests using Saucelabs, ensure that your `SAUCE_USERNAME` and `SAUCE_ACCESS_KEY` environment variables are set, then run:
npm test
This is what's run in Travis, to check against various browsers. The list of browsers is kept in the `.zuul.yml` file.
## JavaScript Standard Style
This module uses [JavaScript Standard Style](https://github.com/feross/standard).
[![JavaScript Style Guide](https://cdn.rawgit.com/feross/standard/master/badge.svg)](https://github.com/feross/standard)
To test that the code conforms to the style, `npm install` and run:
./node_modules/.bin/standard
## credit
This was originally forked from [buffer-browserify](https://github.com/toots/buffer-browserify).
## license
MIT. Copyright (C) [Feross Aboukhadijeh](http://feross.org), and other contributors. Originally forked from an MIT-licensed module by Romain Beauxis.

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#!/usr/bin/env node
var concat = require('concat-stream')
var cp = require('child_process')
var fs = require('fs')
var hyperquest = require('hyperquest')
var path = require('path')
var split = require('split')
var through = require('through2')
var url = 'https://api.github.com/repos/nodejs/node/contents'
var dirs = [
'/test/parallel',
'/test/pummel'
]
cp.execSync('rm -rf node/*.js', { cwd: path.join(__dirname, '../test') })
var httpOpts = {
headers: {
'User-Agent': null
// auth if github rate-limits you...
// 'Authorization': 'Basic ' + Buffer('username:password').toString('base64'),
}
}
dirs.forEach(function (dir) {
var req = hyperquest(url + dir, httpOpts)
req.pipe(concat(function (data) {
if (req.response.statusCode !== 200) {
throw new Error(url + dir + ': ' + data.toString())
}
downloadBufferTests(dir, JSON.parse(data))
}))
})
function downloadBufferTests (dir, files) {
files.forEach(function (file) {
if (!/test-buffer.*/.test(file.name)) return
if (file.name === 'test-buffer-fakes.js') {
// These teses only apply to node, where they're calling into C++ and need to
// ensure the prototype can't be faked, or else there will be a segfault.
return
}
console.log(file.download_url)
var out = path.join(__dirname, '../test/node', file.name)
hyperquest(file.download_url, httpOpts)
.pipe(split())
.pipe(testfixer(file.name))
.pipe(fs.createWriteStream(out))
.on('finish', function () {
console.log('wrote ' + file.name)
})
})
}
function testfixer (filename) {
var firstline = true
return through(function (line, enc, cb) {
line = line.toString()
if (firstline) {
// require buffer explicitly
var preamble = 'var Buffer = require(\'../../\').Buffer;\n'
if (/use strict/.test(line)) line += '\n' + preamble
else line + preamble + '\n' + line
firstline = false
}
// use `var` instead of `const`/`let`
line = line.replace(/(const|let) /g, 'var ')
// make `var common = require('common')` work
line = line.replace(/(var common = require.*)/g, 'var common = { skip: function () {} };')
// make `require('../common')` work
line = line.replace(/require\('\.\.\/common'\);/g, '')
// require browser buffer
line = line.replace(/(.*)require\('buffer'\)(.*)/g, '$1require(\'../../\')$2')
// comment out console logs
line = line.replace(/(.*console\..*)/g, '// $1')
// we can't reliably test typed array max-sizes in the browser
if (filename === 'test-buffer-big.js') {
line = line.replace(/(.*new Int8Array.*RangeError.*)/, '// $1')
line = line.replace(/(.*new ArrayBuffer.*RangeError.*)/, '// $1')
line = line.replace(/(.*new Float64Array.*RangeError.*)/, '// $1')
}
// https://github.com/nodejs/node/blob/v0.12/test/parallel/test-buffer.js#L1138
// unfortunately we can't run this because crypto-browserify doesn't work in old
// versions of ie
if (filename === 'test-buffer.js') {
line = line.replace(/^(\s*)(var crypto = require.*)/, '$1// $2')
line = line.replace(/(crypto.createHash.*\))/, '1 /*$1*/')
}
cb(null, line + '\n')
})
}

41
node_modules/buffer/bin/test.js generated vendored Normal file
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#!/usr/bin/env node
var cp = require('child_process')
var fs = require('fs')
var path = require('path')
var shouldRunBrowserTests = !process.env.TRAVIS_PULL_REQUEST ||
process.env.TRAVIS_PULL_REQUEST === 'false'
var node = cp.spawn('npm', ['run', 'test-node'], { stdio: 'inherit' })
node.on('close', function (code) {
if (code === 0 && shouldRunBrowserTests) {
runBrowserTests()
} else {
process.exit(code)
}
})
function runBrowserTests () {
var zuulYmlPath = path.join(__dirname, '..', '.zuul.yml')
writeES5ZuulYml()
cp.spawn('npm', ['run', 'test-browser-es5'], { stdio: 'inherit' })
.on('close', function (code) {
if (code !== 0) process.exit(code)
writeES6ZuulYml()
cp.spawn('npm', ['run', 'test-browser-es6'], { stdio: 'inherit' })
.on('close', function (code) {
process.exit(code)
})
})
function writeES5ZuulYml () {
fs.writeFileSync(zuulYmlPath, fs.readFileSync(path.join(__dirname, 'zuul-es5.yml')))
}
function writeES6ZuulYml () {
fs.writeFileSync(zuulYmlPath, fs.readFileSync(path.join(__dirname, 'zuul-es6.yml')))
}
}

21
node_modules/buffer/bin/update-authors.sh generated vendored Executable file
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#!/bin/sh
# Update AUTHORS.md based on git history.
git log --reverse --format='%aN (%aE)' | perl -we '
BEGIN {
%seen = (), @authors = ();
}
while (<>) {
next if $seen{$_};
next if /(support\@greenkeeper.io)/;
next if /(dcousens\@users.noreply.github.com)/;
next if /(cmetcalf\@appgeo.com)/;
$seen{$_} = push @authors, "- ", $_;
}
END {
print "# Authors\n\n";
print "#### Ordered by first contribution.\n\n";
print @authors, "\n";
print "#### Generated by bin/update-authors.sh.\n";
}
' > AUTHORS.md

14
node_modules/buffer/bin/zuul-es5.yml generated vendored Normal file
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ui: tape
scripts:
- ./test/_polyfill.js
browsers:
- name: safari
version: latest
- name: ie
version: 8..latest
- name: microsoftedge
version: 13..latest
- name: android
version: 4.4..latest
- name: iphone
version: latest

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node_modules/buffer/bin/zuul-es6.yml generated vendored Normal file
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ui: tape
browsers:
- name: chrome
version: '-1..latest'
- name: firefox
version: '-1..latest'

1789
node_modules/buffer/index.js generated vendored Normal file
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77
node_modules/buffer/package.json generated vendored Normal file
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{
"name": "buffer",
"description": "Node.js Buffer API, for the browser",
"version": "4.9.2",
"author": {
"name": "Feross Aboukhadijeh",
"email": "feross@feross.org",
"url": "http://feross.org"
},
"bugs": {
"url": "https://github.com/feross/buffer/issues"
},
"contributors": [
"Romain Beauxis <toots@rastageeks.org>",
"James Halliday <mail@substack.net>"
],
"dependencies": {
"base64-js": "^1.0.2",
"ieee754": "^1.1.4",
"isarray": "^1.0.0"
},
"devDependencies": {
"benchmark": "^2.0.0",
"browserify": "^13.0.0",
"concat-stream": "^1.4.7",
"hyperquest": "^2.0.0",
"is-buffer": "^1.1.1",
"is-nan": "^1.0.1",
"split": "^1.0.0",
"standard": "^7.0.0",
"tape": "^4.0.0",
"through2": "^2.0.0",
"zuul": "^3.0.0"
},
"homepage": "https://github.com/feross/buffer",
"jspm": {
"map": {
"./index.js": {
"node": "@node/buffer"
}
}
},
"keywords": [
"arraybuffer",
"browser",
"browserify",
"buffer",
"compatible",
"dataview",
"uint8array"
],
"license": "MIT",
"main": "index.js",
"repository": {
"type": "git",
"url": "git://github.com/feross/buffer.git"
},
"scripts": {
"perf": "browserify --debug perf/bracket-notation.js > perf/bundle.js && open perf/index.html",
"perf-node": "node perf/bracket-notation.js && node perf/concat.js && node perf/copy-big.js && node perf/copy.js && node perf/new-big.js && node perf/new.js && node perf/readDoubleBE.js && node perf/readFloatBE.js && node perf/readUInt32LE.js && node perf/slice.js && node perf/writeFloatBE.js",
"size": "browserify -r ./ | uglifyjs -c -m | gzip | wc -c",
"test": "standard && node ./bin/test.js",
"test-browser-es5": "zuul --ui tape -- test/*.js",
"test-browser-es5-local": "zuul --ui tape --local -- test/*.js",
"test-browser-es6": "zuul --ui tape -- test/*.js test/node/*.js",
"test-browser-es6-local": "zuul --ui tape --local -- test/*.js test/node/*.js",
"test-node": "tape test/*.js test/node/*.js && OBJECT_IMPL=true tape test/*.js",
"update-authors": "./bin/update-authors.sh"
},
"standard": {
"ignore": [
"test/node/*.js",
"test/_polyfill.js",
"perf/*.js"
]
}
}

150
node_modules/buffer/test/_polyfill.js generated vendored Normal file
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if (!Array.prototype.forEach) {
Array.prototype.forEach = function(callback, thisArg) {
var T, k;
if (this == null) {
throw new TypeError(' this is null or not defined');
}
// 1. Let O be the result of calling ToObject passing the |this| value as the argument.
var O = Object(this);
// 2. Let lenValue be the result of calling the Get internal method of O with the argument "length".
// 3. Let len be ToUint32(lenValue).
var len = O.length >>> 0;
// 4. If IsCallable(callback) is false, throw a TypeError exception.
// See: http://es5.github.com/#x9.11
if (typeof callback !== "function") {
throw new TypeError(callback + ' is not a function');
}
// 5. If thisArg was supplied, let T be thisArg; else let T be undefined.
if (arguments.length > 1) {
T = thisArg;
}
// 6. Let k be 0
k = 0;
// 7. Repeat, while k < len
while (k < len) {
var kValue;
// a. Let Pk be ToString(k).
// This is implicit for LHS operands of the in operator
// b. Let kPresent be the result of calling the HasProperty internal method of O with argument Pk.
// This step can be combined with c
// c. If kPresent is true, then
if (k in O) {
// i. Let kValue be the result of calling the Get internal method of O with argument Pk.
kValue = O[k];
// ii. Call the Call internal method of callback with T as the this value and
// argument list containing kValue, k, and O.
callback.call(T, kValue, k, O);
}
// d. Increase k by 1.
k++;
}
// 8. return undefined
};
}
if (!Array.isArray) {
Array.isArray = function(arg) {
return Object.prototype.toString.call(arg) === '[object Array]';
};
}
if (!Array.prototype.map) {
Array.prototype.map = function(callback, thisArg) {
var T, A, k;
if (this == null) {
throw new TypeError(' this is null or not defined');
}
// 1. Let O be the result of calling ToObject passing the |this|
// value as the argument.
var O = Object(this);
// 2. Let lenValue be the result of calling the Get internal
// method of O with the argument "length".
// 3. Let len be ToUint32(lenValue).
var len = O.length >>> 0;
// 4. If IsCallable(callback) is false, throw a TypeError exception.
// See: http://es5.github.com/#x9.11
if (typeof callback !== 'function') {
throw new TypeError(callback + ' is not a function');
}
// 5. If thisArg was supplied, let T be thisArg; else let T be undefined.
if (arguments.length > 1) {
T = thisArg;
}
// 6. Let A be a new array created as if by the expression new Array(len)
// where Array is the standard built-in constructor with that name and
// len is the value of len.
A = new Array(len);
// 7. Let k be 0
k = 0;
// 8. Repeat, while k < len
while (k < len) {
var kValue, mappedValue;
// a. Let Pk be ToString(k).
// This is implicit for LHS operands of the in operator
// b. Let kPresent be the result of calling the HasProperty internal
// method of O with argument Pk.
// This step can be combined with c
// c. If kPresent is true, then
if (k in O) {
// i. Let kValue be the result of calling the Get internal
// method of O with argument Pk.
kValue = O[k];
// ii. Let mappedValue be the result of calling the Call internal
// method of callback with T as the this value and argument
// list containing kValue, k, and O.
mappedValue = callback.call(T, kValue, k, O);
// iii. Call the DefineOwnProperty internal method of A with arguments
// Pk, Property Descriptor
// { Value: mappedValue,
// Writable: true,
// Enumerable: true,
// Configurable: true },
// and false.
// In browsers that support Object.defineProperty, use the following:
// Object.defineProperty(A, k, {
// value: mappedValue,
// writable: true,
// enumerable: true,
// configurable: true
// });
// For best browser support, use the following:
A[k] = mappedValue;
}
// d. Increase k by 1.
k++;
}
// 9. return A
return A;
};
}

47
node_modules/buffer/test/base64.js generated vendored Normal file
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if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false
var B = require('../').Buffer
var test = require('tape')
test('base64: ignore whitespace', function (t) {
var text = '\n YW9ldQ== '
var buf = new B(text, 'base64')
t.equal(buf.toString(), 'aoeu')
t.end()
})
test('base64: strings without padding', function (t) {
t.equal((new B('YW9ldQ', 'base64').toString()), 'aoeu')
t.end()
})
test('base64: newline in utf8 -- should not be an issue', function (t) {
t.equal(
new B('LS0tCnRpdGxlOiBUaHJlZSBkYXNoZXMgbWFya3MgdGhlIHNwb3QKdGFnczoK', 'base64').toString('utf8'),
'---\ntitle: Three dashes marks the spot\ntags:\n'
)
t.end()
})
test('base64: newline in base64 -- should get stripped', function (t) {
t.equal(
new B('LS0tCnRpdGxlOiBUaHJlZSBkYXNoZXMgbWFya3MgdGhlIHNwb3QKdGFnczoK\nICAtIHlhbWwKICAtIGZyb250LW1hdHRlcgogIC0gZGFzaGVzCmV4cGFuZWQt', 'base64').toString('utf8'),
'---\ntitle: Three dashes marks the spot\ntags:\n - yaml\n - front-matter\n - dashes\nexpaned-'
)
t.end()
})
test('base64: tab characters in base64 - should get stripped', function (t) {
t.equal(
new B('LS0tCnRpdGxlOiBUaHJlZSBkYXNoZXMgbWFya3MgdGhlIHNwb3QKdGFnczoK\t\t\t\tICAtIHlhbWwKICAtIGZyb250LW1hdHRlcgogIC0gZGFzaGVzCmV4cGFuZWQt', 'base64').toString('utf8'),
'---\ntitle: Three dashes marks the spot\ntags:\n - yaml\n - front-matter\n - dashes\nexpaned-'
)
t.end()
})
test('base64: invalid non-alphanumeric characters -- should be stripped', function (t) {
t.equal(
new B('!"#$%&\'()*,.:;<=>?@[\\]^`{|}~', 'base64').toString('utf8'),
''
)
t.end()
})

85
node_modules/buffer/test/basic.js generated vendored Normal file
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if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false
var B = require('../').Buffer
var test = require('tape')
test('instanceof Buffer', function (t) {
var buf = new B([1, 2])
t.ok(buf instanceof B)
t.end()
})
test('convert to Uint8Array in modern browsers', function (t) {
if (B.TYPED_ARRAY_SUPPORT) {
var buf = new B([1, 2])
var uint8array = new Uint8Array(buf.buffer)
t.ok(uint8array instanceof Uint8Array)
t.equal(uint8array[0], 1)
t.equal(uint8array[1], 2)
} else {
t.pass('object impl: skipping test')
}
t.end()
})
test('indexes from a string', function (t) {
var buf = new B('abc')
t.equal(buf[0], 97)
t.equal(buf[1], 98)
t.equal(buf[2], 99)
t.end()
})
test('indexes from an array', function (t) {
var buf = new B([ 97, 98, 99 ])
t.equal(buf[0], 97)
t.equal(buf[1], 98)
t.equal(buf[2], 99)
t.end()
})
test('setting index value should modify buffer contents', function (t) {
var buf = new B([ 97, 98, 99 ])
t.equal(buf[2], 99)
t.equal(buf.toString(), 'abc')
buf[2] += 10
t.equal(buf[2], 109)
t.equal(buf.toString(), 'abm')
t.end()
})
test('storing negative number should cast to unsigned', function (t) {
var buf = new B(1)
if (B.TYPED_ARRAY_SUPPORT) {
// This does not work with the object implementation -- nothing we can do!
buf[0] = -3
t.equal(buf[0], 253)
}
buf = new B(1)
buf.writeInt8(-3, 0)
t.equal(buf[0], 253)
t.end()
})
test('test that memory is copied from array-like', function (t) {
if (B.TYPED_ARRAY_SUPPORT) {
var u = new Uint8Array(4)
var b = new B(u)
b[0] = 1
b[1] = 2
b[2] = 3
b[3] = 4
t.equal(u[0], 0)
t.equal(u[1], 0)
t.equal(u[2], 0)
t.equal(u[3], 0)
} else {
t.pass('object impl: skipping test')
}
t.end()
})

59
node_modules/buffer/test/compare.js generated vendored Normal file
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if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false
var B = require('../').Buffer
var test = require('tape')
test('buffer.compare', function (t) {
var b = new B(1).fill('a')
var c = new B(1).fill('c')
var d = new B(2).fill('aa')
t.equal(b.compare(c), -1)
t.equal(c.compare(d), 1)
t.equal(d.compare(b), 1)
t.equal(b.compare(d), -1)
// static method
t.equal(B.compare(b, c), -1)
t.equal(B.compare(c, d), 1)
t.equal(B.compare(d, b), 1)
t.equal(B.compare(b, d), -1)
t.end()
})
test('buffer.compare argument validation', function (t) {
t.throws(function () {
var b = new B(1)
B.compare(b, 'abc')
})
t.throws(function () {
var b = new B(1)
B.compare('abc', b)
})
t.throws(function () {
var b = new B(1)
b.compare('abc')
})
t.end()
})
test('buffer.equals', function (t) {
var b = new B(5).fill('abcdf')
var c = new B(5).fill('abcdf')
var d = new B(5).fill('abcde')
var e = new B(6).fill('abcdef')
t.ok(b.equals(c))
t.ok(!c.equals(d))
t.ok(!d.equals(e))
t.end()
})
test('buffer.equals argument validation', function (t) {
t.throws(function () {
var b = new B(1)
b.equals('abc')
})
t.end()
})

193
node_modules/buffer/test/constructor.js generated vendored Normal file
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if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false
var B = require('../').Buffer
var test = require('tape')
test('new buffer from array', function (t) {
t.equal(
new B([1, 2, 3]).toString(),
'\u0001\u0002\u0003'
)
t.end()
})
test('new buffer from array w/ negatives', function (t) {
t.equal(
new B([-1, -2, -3]).toString('hex'),
'fffefd'
)
t.end()
})
test('new buffer from array with mixed signed input', function (t) {
t.equal(
new B([-255, 255, -128, 128, 512, -512, 511, -511]).toString('hex'),
'01ff80800000ff01'
)
t.end()
})
test('new buffer from string', function (t) {
t.equal(
new B('hey', 'utf8').toString(),
'hey'
)
t.end()
})
test('new buffer from buffer', function (t) {
var b1 = new B('asdf')
var b2 = new B(b1)
t.equal(b1.toString('hex'), b2.toString('hex'))
t.end()
})
test('new buffer from ArrayBuffer', function (t) {
if (typeof ArrayBuffer !== 'undefined') {
var arraybuffer = new Uint8Array([0, 1, 2, 3]).buffer
var b = new B(arraybuffer)
t.equal(b.length, 4)
t.equal(b[0], 0)
t.equal(b[1], 1)
t.equal(b[2], 2)
t.equal(b[3], 3)
t.equal(b[4], undefined)
}
t.end()
})
test('new buffer from ArrayBuffer, shares memory', function (t) {
if (Buffer.TYPED_ARRAY_SUPPORT) {
var u = new Uint8Array([0, 1, 2, 3])
var arraybuffer = u.buffer
var b = new B(arraybuffer)
t.equal(b.length, 4)
t.equal(b[0], 0)
t.equal(b[1], 1)
t.equal(b[2], 2)
t.equal(b[3], 3)
t.equal(b[4], undefined)
// changing the Uint8Array (and thus the ArrayBuffer), changes the Buffer
u[0] = 10
t.equal(b[0], 10)
u[1] = 11
t.equal(b[1], 11)
u[2] = 12
t.equal(b[2], 12)
u[3] = 13
t.equal(b[3], 13)
}
t.end()
})
test('new buffer from Uint8Array', function (t) {
if (typeof Uint8Array !== 'undefined') {
var b1 = new Uint8Array([0, 1, 2, 3])
var b2 = new B(b1)
t.equal(b1.length, b2.length)
t.equal(b1[0], 0)
t.equal(b1[1], 1)
t.equal(b1[2], 2)
t.equal(b1[3], 3)
t.equal(b1[4], undefined)
}
t.end()
})
test('new buffer from Uint16Array', function (t) {
if (typeof Uint16Array !== 'undefined') {
var b1 = new Uint16Array([0, 1, 2, 3])
var b2 = new B(b1)
t.equal(b1.length, b2.length)
t.equal(b1[0], 0)
t.equal(b1[1], 1)
t.equal(b1[2], 2)
t.equal(b1[3], 3)
t.equal(b1[4], undefined)
}
t.end()
})
test('new buffer from Uint32Array', function (t) {
if (typeof Uint32Array !== 'undefined') {
var b1 = new Uint32Array([0, 1, 2, 3])
var b2 = new B(b1)
t.equal(b1.length, b2.length)
t.equal(b1[0], 0)
t.equal(b1[1], 1)
t.equal(b1[2], 2)
t.equal(b1[3], 3)
t.equal(b1[4], undefined)
}
t.end()
})
test('new buffer from Int16Array', function (t) {
if (typeof Int16Array !== 'undefined') {
var b1 = new Int16Array([0, 1, 2, 3])
var b2 = new B(b1)
t.equal(b1.length, b2.length)
t.equal(b1[0], 0)
t.equal(b1[1], 1)
t.equal(b1[2], 2)
t.equal(b1[3], 3)
t.equal(b1[4], undefined)
}
t.end()
})
test('new buffer from Int32Array', function (t) {
if (typeof Int32Array !== 'undefined') {
var b1 = new Int32Array([0, 1, 2, 3])
var b2 = new B(b1)
t.equal(b1.length, b2.length)
t.equal(b1[0], 0)
t.equal(b1[1], 1)
t.equal(b1[2], 2)
t.equal(b1[3], 3)
t.equal(b1[4], undefined)
}
t.end()
})
test('new buffer from Float32Array', function (t) {
if (typeof Float32Array !== 'undefined') {
var b1 = new Float32Array([0, 1, 2, 3])
var b2 = new B(b1)
t.equal(b1.length, b2.length)
t.equal(b1[0], 0)
t.equal(b1[1], 1)
t.equal(b1[2], 2)
t.equal(b1[3], 3)
t.equal(b1[4], undefined)
}
t.end()
})
test('new buffer from Float64Array', function (t) {
if (typeof Float64Array !== 'undefined') {
var b1 = new Float64Array([0, 1, 2, 3])
var b2 = new B(b1)
t.equal(b1.length, b2.length)
t.equal(b1[0], 0)
t.equal(b1[1], 1)
t.equal(b1[2], 2)
t.equal(b1[3], 3)
t.equal(b1[4], undefined)
}
t.end()
})
test('new buffer from buffer.toJSON() output', function (t) {
if (typeof JSON === 'undefined') {
// ie6, ie7 lack support
t.end()
return
}
var buf = new B('test')
var json = JSON.stringify(buf)
var obj = JSON.parse(json)
var copy = new B(obj)
t.ok(buf.equals(copy))
t.end()
})

132
node_modules/buffer/test/from-string.js generated vendored Normal file
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if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false
var B = require('../').Buffer
var test = require('tape')
test('detect utf16 surrogate pairs', function (t) {
var text = '\uD83D\uDE38' + '\uD83D\uDCAD' + '\uD83D\uDC4D'
var buf = new B(text)
t.equal(text, buf.toString())
t.end()
})
test('detect utf16 surrogate pairs over U+20000 until U+10FFFF', function (t) {
var text = '\uD842\uDFB7' + '\uD93D\uDCAD' + '\uDBFF\uDFFF'
var buf = new B(text)
t.equal(text, buf.toString())
t.end()
})
test('replace orphaned utf16 surrogate lead code point', function (t) {
var text = '\uD83D\uDE38' + '\uD83D' + '\uD83D\uDC4D'
var buf = new B(text)
t.deepEqual(buf, new B([ 0xf0, 0x9f, 0x98, 0xb8, 0xef, 0xbf, 0xbd, 0xf0, 0x9f, 0x91, 0x8d ]))
t.end()
})
test('replace orphaned utf16 surrogate trail code point', function (t) {
var text = '\uD83D\uDE38' + '\uDCAD' + '\uD83D\uDC4D'
var buf = new B(text)
t.deepEqual(buf, new B([ 0xf0, 0x9f, 0x98, 0xb8, 0xef, 0xbf, 0xbd, 0xf0, 0x9f, 0x91, 0x8d ]))
t.end()
})
test('do not write partial utf16 code units', function (t) {
var f = new B([0, 0, 0, 0, 0])
t.equal(f.length, 5)
var size = f.write('あいうえお', 'utf16le')
t.equal(size, 4)
t.deepEqual(f, new B([0x42, 0x30, 0x44, 0x30, 0x00]))
t.end()
})
test('handle partial utf16 code points when encoding to utf8 the way node does', function (t) {
var text = '\uD83D\uDE38' + '\uD83D\uDC4D'
var buf = new B(8)
buf.fill(0)
buf.write(text)
t.deepEqual(buf, new B([ 0xf0, 0x9f, 0x98, 0xb8, 0xf0, 0x9f, 0x91, 0x8d ]))
buf = new B(7)
buf.fill(0)
buf.write(text)
t.deepEqual(buf, new B([ 0xf0, 0x9f, 0x98, 0xb8, 0x00, 0x00, 0x00 ]))
buf = new B(6)
buf.fill(0)
buf.write(text)
t.deepEqual(buf, new B([ 0xf0, 0x9f, 0x98, 0xb8, 0x00, 0x00 ]))
buf = new B(5)
buf.fill(0)
buf.write(text)
t.deepEqual(buf, new B([ 0xf0, 0x9f, 0x98, 0xb8, 0x00 ]))
buf = new B(4)
buf.fill(0)
buf.write(text)
t.deepEqual(buf, new B([ 0xf0, 0x9f, 0x98, 0xb8 ]))
buf = new B(3)
buf.fill(0)
buf.write(text)
t.deepEqual(buf, new B([ 0x00, 0x00, 0x00 ]))
buf = new B(2)
buf.fill(0)
buf.write(text)
t.deepEqual(buf, new B([ 0x00, 0x00 ]))
buf = new B(1)
buf.fill(0)
buf.write(text)
t.deepEqual(buf, new B([ 0x00 ]))
t.end()
})
test('handle invalid utf16 code points when encoding to utf8 the way node does', function (t) {
var text = 'a' + '\uDE38\uD83D' + 'b'
var buf = new B(8)
buf.fill(0)
buf.write(text)
t.deepEqual(buf, new B([ 0x61, 0xef, 0xbf, 0xbd, 0xef, 0xbf, 0xbd, 0x62 ]))
buf = new B(7)
buf.fill(0)
buf.write(text)
t.deepEqual(buf, new B([ 0x61, 0xef, 0xbf, 0xbd, 0xef, 0xbf, 0xbd ]))
buf = new B(6)
buf.fill(0)
buf.write(text)
t.deepEqual(buf, new B([ 0x61, 0xef, 0xbf, 0xbd, 0x00, 0x00 ]))
buf = new B(5)
buf.fill(0)
buf.write(text)
t.deepEqual(buf, new B([ 0x61, 0xef, 0xbf, 0xbd, 0x00 ]))
buf = new B(4)
buf.fill(0)
buf.write(text)
t.deepEqual(buf, new B([ 0x61, 0xef, 0xbf, 0xbd ]))
buf = new B(3)
buf.fill(0)
buf.write(text)
t.deepEqual(buf, new B([ 0x61, 0x00, 0x00 ]))
buf = new B(2)
buf.fill(0)
buf.write(text)
t.deepEqual(buf, new B([ 0x61, 0x00 ]))
buf = new B(1)
buf.fill(0)
buf.write(text)
t.deepEqual(buf, new B([ 0x61 ]))
t.end()
})

22
node_modules/buffer/test/is-buffer.js generated vendored Normal file
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if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false
var B = require('../').Buffer
var isBuffer = require('is-buffer')
var test = require('tape')
test('is-buffer tests', function (t) {
t.ok(isBuffer(new B(4)), 'new Buffer(4)')
t.notOk(isBuffer(undefined), 'undefined')
t.notOk(isBuffer(null), 'null')
t.notOk(isBuffer(''), 'empty string')
t.notOk(isBuffer(true), 'true')
t.notOk(isBuffer(false), 'false')
t.notOk(isBuffer(0), '0')
t.notOk(isBuffer(1), '1')
t.notOk(isBuffer(1.0), '1.0')
t.notOk(isBuffer('string'), 'string')
t.notOk(isBuffer({}), '{}')
t.notOk(isBuffer(function foo () {}), 'function foo () {}')
t.end()
})

127
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if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false
var B = require('../').Buffer
var test = require('tape')
test('buffer.toJSON', function (t) {
var data = [1, 2, 3, 4]
t.deepEqual(
new B(data).toJSON(),
{ type: 'Buffer', data: [ 1, 2, 3, 4 ] }
)
t.end()
})
test('buffer.copy', function (t) {
// copied from nodejs.org example
var buf1 = new B(26)
var buf2 = new B(26)
for (var i = 0; i < 26; i++) {
buf1[i] = i + 97 // 97 is ASCII a
buf2[i] = 33 // ASCII !
}
buf1.copy(buf2, 8, 16, 20)
t.equal(
buf2.toString('ascii', 0, 25),
'!!!!!!!!qrst!!!!!!!!!!!!!'
)
t.end()
})
test('test offset returns are correct', function (t) {
var b = new B(16)
t.equal(4, b.writeUInt32LE(0, 0))
t.equal(6, b.writeUInt16LE(0, 4))
t.equal(7, b.writeUInt8(0, 6))
t.equal(8, b.writeInt8(0, 7))
t.equal(16, b.writeDoubleLE(0, 8))
t.end()
})
test('concat() a varying number of buffers', function (t) {
var zero = []
var one = [ new B('asdf') ]
var long = []
for (var i = 0; i < 10; i++) {
long.push(new B('asdf'))
}
var flatZero = B.concat(zero)
var flatOne = B.concat(one)
var flatLong = B.concat(long)
var flatLongLen = B.concat(long, 40)
t.equal(flatZero.length, 0)
t.equal(flatOne.toString(), 'asdf')
t.deepEqual(flatOne, one[0])
t.equal(flatLong.toString(), (new Array(10 + 1).join('asdf')))
t.equal(flatLongLen.toString(), (new Array(10 + 1).join('asdf')))
t.end()
})
test('fill', function (t) {
var b = new B(10)
b.fill(2)
t.equal(b.toString('hex'), '02020202020202020202')
t.end()
})
test('fill (string)', function (t) {
var b = new B(10)
b.fill('abc')
t.equal(b.toString(), 'abcabcabca')
b.fill('է')
t.equal(b.toString(), 'էէէէէ')
t.end()
})
test('copy() empty buffer with sourceEnd=0', function (t) {
var source = new B([42])
var destination = new B([43])
source.copy(destination, 0, 0, 0)
t.equal(destination.readUInt8(0), 43)
t.end()
})
test('copy() after slice()', function (t) {
var source = new B(200)
var dest = new B(200)
var expected = new B(200)
for (var i = 0; i < 200; i++) {
source[i] = i
dest[i] = 0
}
source.slice(2).copy(dest)
source.copy(expected, 0, 2)
t.deepEqual(dest, expected)
t.end()
})
test('copy() ascending', function (t) {
var b = new B('abcdefghij')
b.copy(b, 0, 3, 10)
t.equal(b.toString(), 'defghijhij')
t.end()
})
test('copy() descending', function (t) {
var b = new B('abcdefghij')
b.copy(b, 3, 0, 7)
t.equal(b.toString(), 'abcabcdefg')
t.end()
})
test('buffer.slice sets indexes', function (t) {
t.equal((new B('hallo')).slice(0, 5).toString(), 'hallo')
t.end()
})
test('buffer.slice out of range', function (t) {
t.plan(2)
t.equal((new B('hallo')).slice(0, 10).toString(), 'hallo')
t.equal((new B('hallo')).slice(10, 2).toString(), '')
t.end()
})

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node_modules/buffer/test/node/test-buffer-alloc.js generated vendored Normal file
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112
node_modules/buffer/test/node/test-buffer-arraybuffer.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
var Buffer = require('../../').Buffer;
var LENGTH = 16;
var ab = new ArrayBuffer(LENGTH);
var dv = new DataView(ab);
var ui = new Uint8Array(ab);
var buf = Buffer.from(ab);
assert.ok(buf instanceof Buffer);
// For backwards compatibility of old .parent property test that if buf is not
// a slice then .parent should be undefined.
assert.equal(buf.parent, undefined);
assert.equal(buf.buffer, ab);
assert.equal(buf.length, ab.byteLength);
buf.fill(0xC);
for (var i = 0; i < LENGTH; i++) {
assert.equal(ui[i], 0xC);
ui[i] = 0xF;
assert.equal(buf[i], 0xF);
}
buf.writeUInt32LE(0xF00, 0);
buf.writeUInt32BE(0xB47, 4);
buf.writeDoubleLE(3.1415, 8);
assert.equal(dv.getUint32(0, true), 0xF00);
assert.equal(dv.getUint32(4), 0xB47);
assert.equal(dv.getFloat64(8, true), 3.1415);
// Now test protecting users from doing stupid things
assert.throws(function() {
function AB() { }
Object.setPrototypeOf(AB, ArrayBuffer);
Object.setPrototypeOf(AB.prototype, ArrayBuffer.prototype);
Buffer.from(new AB());
}, TypeError);
// write{Double,Float}{LE,BE} with noAssert should not crash, cf. #3766
var b = Buffer.allocUnsafe(1);
b.writeFloatLE(11.11, 0, true);
b.writeFloatBE(11.11, 0, true);
b.writeDoubleLE(11.11, 0, true);
b.writeDoubleBE(11.11, 0, true);
// Test the byteOffset and length arguments
{
var ab = new Uint8Array(5);
ab[0] = 1;
ab[1] = 2;
ab[2] = 3;
ab[3] = 4;
ab[4] = 5;
var buf = Buffer.from(ab.buffer, 1, 3);
assert.equal(buf.length, 3);
assert.equal(buf[0], 2);
assert.equal(buf[1], 3);
assert.equal(buf[2], 4);
buf[0] = 9;
assert.equal(ab[1], 9);
assert.throws(() => Buffer.from(ab.buffer, 6), (err) => {
assert(err instanceof RangeError);
assert(/'offset' is out of bounds/.test(err.message));
return true;
});
assert.throws(() => Buffer.from(ab.buffer, 3, 6), (err) => {
assert(err instanceof RangeError);
assert(/'length' is out of bounds/.test(err.message));
return true;
});
}
// Test the deprecated Buffer() version also
{
var ab = new Uint8Array(5);
ab[0] = 1;
ab[1] = 2;
ab[2] = 3;
ab[3] = 4;
ab[4] = 5;
var buf = Buffer(ab.buffer, 1, 3);
assert.equal(buf.length, 3);
assert.equal(buf[0], 2);
assert.equal(buf[1], 3);
assert.equal(buf[2], 4);
buf[0] = 9;
assert.equal(ab[1], 9);
assert.throws(() => Buffer(ab.buffer, 6), (err) => {
assert(err instanceof RangeError);
assert(/'offset' is out of bounds/.test(err.message));
return true;
});
assert.throws(() => Buffer(ab.buffer, 3, 6), (err) => {
assert(err instanceof RangeError);
assert(/'length' is out of bounds/.test(err.message));
return true;
});
}

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node_modules/buffer/test/node/test-buffer-ascii.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
// ASCII conversion in node.js simply masks off the high bits,
// it doesn't do transliteration.
assert.equal(Buffer.from('hérité').toString('ascii'), 'hC)ritC)');
// 71 characters, 78 bytes. The ’ character is a triple-byte sequence.
var input = 'C’est, graphiquement, la réunion d’un accent aigu ' +
'et d’un accent grave.';
var expected = 'Cb\u0000\u0019est, graphiquement, la rC)union ' +
'db\u0000\u0019un accent aigu et db\u0000\u0019un ' +
'accent grave.';
var buf = Buffer.from(input);
for (var i = 0; i < expected.length; ++i) {
assert.equal(buf.slice(i).toString('ascii'), expected.slice(i));
// Skip remainder of multi-byte sequence.
if (input.charCodeAt(i) > 65535) ++i;
if (input.charCodeAt(i) > 127) ++i;
}

18
node_modules/buffer/test/node/test-buffer-bad-overload.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
assert.doesNotThrow(function() {
Buffer.allocUnsafe(10);
});
assert.throws(function() {
Buffer.from(10, 'hex');
});
assert.doesNotThrow(function() {
Buffer.from('deadbeaf', 'hex');
});

46
node_modules/buffer/test/node/test-buffer-badhex.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
var Buffer = require('../../').Buffer;
// Test hex strings and bad hex strings
{
var buf1 = Buffer.alloc(4);
assert.strictEqual(buf1.length, 4);
assert.deepStrictEqual(buf1, new Buffer([0, 0, 0, 0]));
assert.strictEqual(buf1.write('abcdxx', 0, 'hex'), 2);
assert.deepStrictEqual(buf1, new Buffer([0xab, 0xcd, 0x00, 0x00]));
assert.strictEqual(buf1.toString('hex'), 'abcd0000');
assert.strictEqual(buf1.write('abcdef01', 0, 'hex'), 4);
assert.deepStrictEqual(buf1, new Buffer([0xab, 0xcd, 0xef, 0x01]));
assert.strictEqual(buf1.toString('hex'), 'abcdef01');
var buf2 = Buffer.from(buf1.toString('hex'), 'hex');
assert.strictEqual(buf1.toString('hex'), buf2.toString('hex'));
var buf3 = Buffer.alloc(5);
assert.strictEqual(buf3.write('abcdxx', 1, 'hex'), 2);
assert.strictEqual(buf3.toString('hex'), '00abcd0000');
var buf4 = Buffer.alloc(4);
assert.deepStrictEqual(buf4, new Buffer([0, 0, 0, 0]));
assert.strictEqual(buf4.write('xxabcd', 0, 'hex'), 0);
assert.deepStrictEqual(buf4, new Buffer([0, 0, 0, 0]));
assert.strictEqual(buf4.write('xxab', 1, 'hex'), 0);
assert.deepStrictEqual(buf4, new Buffer([0, 0, 0, 0]));
assert.strictEqual(buf4.write('cdxxab', 0, 'hex'), 1);
assert.deepStrictEqual(buf4, new Buffer([0xcd, 0, 0, 0]));
var buf5 = Buffer.alloc(256);
for (var i = 0; i < 256; i++)
buf5[i] = i;
var hex = buf5.toString('hex');
assert.deepStrictEqual(Buffer.from(hex, 'hex'), buf5);
var badHex = hex.slice(0, 256) + 'xx' + hex.slice(256, 510);
assert.deepStrictEqual(Buffer.from(badHex, 'hex'), buf5.slice(0, 128));
}

90
node_modules/buffer/test/node/test-buffer-bytelength.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
var Buffer = require('../../').Buffer;
var SlowBuffer = require('../../').SlowBuffer;
// coerce values to string
assert.equal(Buffer.byteLength(32, 'latin1'), 2);
assert.equal(Buffer.byteLength(NaN, 'utf8'), 3);
assert.equal(Buffer.byteLength({}, 'latin1'), 15);
assert.equal(Buffer.byteLength(), 9);
var buff = new Buffer(10);
assert(ArrayBuffer.isView(buff));
var slowbuff = new SlowBuffer(10);
assert(ArrayBuffer.isView(slowbuff));
// buffer
var incomplete = Buffer.from([0xe4, 0xb8, 0xad, 0xe6, 0x96]);
assert.equal(Buffer.byteLength(incomplete), 5);
var ascii = Buffer.from('abc');
assert.equal(Buffer.byteLength(ascii), 3);
// ArrayBuffer
var buffer = new ArrayBuffer(8);
assert.equal(Buffer.byteLength(buffer), 8);
// TypedArray
var int8 = new Int8Array(8);
assert.equal(Buffer.byteLength(int8), 8);
var uint8 = new Uint8Array(8);
assert.equal(Buffer.byteLength(uint8), 8);
var uintc8 = new Uint8ClampedArray(2);
assert.equal(Buffer.byteLength(uintc8), 2);
var int16 = new Int16Array(8);
assert.equal(Buffer.byteLength(int16), 16);
var uint16 = new Uint16Array(8);
assert.equal(Buffer.byteLength(uint16), 16);
var int32 = new Int32Array(8);
assert.equal(Buffer.byteLength(int32), 32);
var uint32 = new Uint32Array(8);
assert.equal(Buffer.byteLength(uint32), 32);
var float32 = new Float32Array(8);
assert.equal(Buffer.byteLength(float32), 32);
var float64 = new Float64Array(8);
assert.equal(Buffer.byteLength(float64), 64);
// DataView
var dv = new DataView(new ArrayBuffer(2));
assert.equal(Buffer.byteLength(dv), 2);
// special case: zero length string
assert.equal(Buffer.byteLength('', 'ascii'), 0);
assert.equal(Buffer.byteLength('', 'HeX'), 0);
// utf8
assert.equal(Buffer.byteLength('∑éllö wørl∂!', 'utf-8'), 19);
assert.equal(Buffer.byteLength('κλμνξο', 'utf8'), 12);
assert.equal(Buffer.byteLength('挵挶挷挸挹', 'utf-8'), 15);
assert.equal(Buffer.byteLength('𠝹𠱓𠱸', 'UTF8'), 12);
// without an encoding, utf8 should be assumed
assert.equal(Buffer.byteLength('hey there'), 9);
assert.equal(Buffer.byteLength('𠱸挶νξ#xx :)'), 17);
assert.equal(Buffer.byteLength('hello world', ''), 11);
// it should also be assumed with unrecognized encoding
assert.equal(Buffer.byteLength('hello world', 'abc'), 11);
assert.equal(Buffer.byteLength('ßœ∑≈', 'unkn0wn enc0ding'), 10);
// base64
assert.equal(Buffer.byteLength('aGVsbG8gd29ybGQ=', 'base64'), 11);
assert.equal(Buffer.byteLength('bm9kZS5qcyByb2NrcyE=', 'base64'), 14);
assert.equal(Buffer.byteLength('aGkk', 'base64'), 3);
assert.equal(Buffer.byteLength('bHNrZGZsa3NqZmtsc2xrZmFqc2RsZmtqcw==',
'base64'), 25);
// special padding
assert.equal(Buffer.byteLength('aaa=', 'base64'), 2);
assert.equal(Buffer.byteLength('aaaa==', 'base64'), 3);
assert.equal(Buffer.byteLength('Il était tué'), 14);
assert.equal(Buffer.byteLength('Il était tué', 'utf8'), 14);
assert.equal(Buffer.byteLength('Il était tué', 'ascii'), 12);
assert.equal(Buffer.byteLength('Il était tué', 'latin1'), 12);
assert.equal(Buffer.byteLength('Il était tué', 'binary'), 12);
['ucs2', 'ucs-2', 'utf16le', 'utf-16le'].forEach(function(encoding) {
assert.equal(24, Buffer.byteLength('Il était tué', encoding));
});

66
node_modules/buffer/test/node/test-buffer-compare-offset.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
var a = Buffer.from([1, 2, 3, 4, 5, 6, 7, 8, 9, 0]);
var b = Buffer.from([5, 6, 7, 8, 9, 0, 1, 2, 3, 4]);
assert.equal(-1, a.compare(b));
// Equivalent to a.compare(b).
assert.equal(-1, a.compare(b, 0));
assert.equal(-1, a.compare(b, '0'));
// Equivalent to a.compare(b).
assert.equal(-1, a.compare(b, 0, undefined, 0));
// Zero-length targer, return 1
assert.equal(1, a.compare(b, 0, 0, 0));
assert.equal(1, a.compare(b, '0', '0', '0'));
// Equivalent to Buffer.compare(a, b.slice(6, 10))
assert.equal(1, a.compare(b, 6, 10));
// Zero-length source, return -1
assert.equal(-1, a.compare(b, 6, 10, 0, 0));
// Equivalent to Buffer.compare(a.slice(4), b.slice(0, 5))
assert.equal(1, a.compare(b, 0, 5, 4));
// Equivalent to Buffer.compare(a.slice(1), b.slice(5))
assert.equal(1, a.compare(b, 5, undefined, 1));
// Equivalent to Buffer.compare(a.slice(2), b.slice(2, 4))
assert.equal(-1, a.compare(b, 2, 4, 2));
// Equivalent to Buffer.compare(a.slice(4), b.slice(0, 7))
assert.equal(-1, a.compare(b, 0, 7, 4));
// Equivalent to Buffer.compare(a.slice(4, 6), b.slice(0, 7));
assert.equal(-1, a.compare(b, 0, 7, 4, 6));
// zero length target
assert.equal(1, a.compare(b, 0, null));
// coerces to targetEnd == 5
assert.equal(-1, a.compare(b, 0, {valueOf: () => 5}));
// zero length target
assert.equal(1, a.compare(b, Infinity, -Infinity));
// zero length target because default for targetEnd <= targetSource
assert.equal(1, a.compare(b, '0xff'));
var oor = /out of range index/;
assert.throws(() => a.compare(b, 0, 100, 0), oor);
assert.throws(() => a.compare(b, 0, 1, 0, 100), oor);
assert.throws(() => a.compare(b, -1), oor);
assert.throws(() => a.compare(b, 0, '0xff'), oor);
assert.throws(() => a.compare(b, 0, Infinity), oor);
assert.throws(() => a.compare(b, -Infinity, Infinity), oor);
assert.throws(() => a.compare(), /Argument must be a Buffer/);

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node_modules/buffer/test/node/test-buffer-concat.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
var zero = [];
var one = [ Buffer.from('asdf') ];
var long = [];
for (var i = 0; i < 10; i++) long.push(Buffer.from('asdf'));
var flatZero = Buffer.concat(zero);
var flatOne = Buffer.concat(one);
var flatLong = Buffer.concat(long);
var flatLongLen = Buffer.concat(long, 40);
assert(flatZero.length === 0);
assert(flatOne.toString() === 'asdf');
// A special case where concat used to return the first item,
// if the length is one. This check is to make sure that we don't do that.
assert(flatOne !== one[0]);
assert(flatLong.toString() === (new Array(10 + 1).join('asdf')));
assert(flatLongLen.toString() === (new Array(10 + 1).join('asdf')));
assertWrongList();
assertWrongList(null);
assertWrongList(Buffer.from('hello'));
assertWrongList([42]);
assertWrongList(['hello', 'world']);
assertWrongList(['hello', Buffer.from('world')]);
function assertWrongList(value) {
assert.throws(function() {
Buffer.concat(value);
}, function(err) {
return err instanceof TypeError &&
err.message === '"list" argument must be an Array of Buffers';
});
}

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node_modules/buffer/test/node/test-buffer-fill.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
var os = require('os');
var SIZE = 28;
var buf1 = Buffer.allocUnsafe(SIZE);
var buf2 = Buffer.allocUnsafe(SIZE);
// Default encoding
testBufs('abc');
testBufs('\u0222aa');
testBufs('a\u0234b\u0235c\u0236');
testBufs('abc', 4);
testBufs('abc', 5);
testBufs('abc', SIZE);
testBufs('\u0222aa', 2);
testBufs('\u0222aa', 8);
testBufs('a\u0234b\u0235c\u0236', 4);
testBufs('a\u0234b\u0235c\u0236', 12);
testBufs('abc', 4, -1);
testBufs('abc', 4, 1);
testBufs('abc', 5, 1);
testBufs('\u0222aa', 2, -1);
testBufs('\u0222aa', 8, 1);
testBufs('a\u0234b\u0235c\u0236', 4, -1);
testBufs('a\u0234b\u0235c\u0236', 4, 1);
testBufs('a\u0234b\u0235c\u0236', 12, 1);
// UTF8
testBufs('abc', 'utf8');
testBufs('\u0222aa', 'utf8');
testBufs('a\u0234b\u0235c\u0236', 'utf8');
testBufs('abc', 4, 'utf8');
testBufs('abc', 5, 'utf8');
testBufs('abc', SIZE, 'utf8');
testBufs('\u0222aa', 2, 'utf8');
testBufs('\u0222aa', 8, 'utf8');
testBufs('a\u0234b\u0235c\u0236', 4, 'utf8');
testBufs('a\u0234b\u0235c\u0236', 12, 'utf8');
testBufs('abc', 4, -1, 'utf8');
testBufs('abc', 4, 1, 'utf8');
testBufs('abc', 5, 1, 'utf8');
testBufs('\u0222aa', 2, -1, 'utf8');
testBufs('\u0222aa', 8, 1, 'utf8');
testBufs('a\u0234b\u0235c\u0236', 4, -1, 'utf8');
testBufs('a\u0234b\u0235c\u0236', 4, 1, 'utf8');
testBufs('a\u0234b\u0235c\u0236', 12, 1, 'utf8');
assert.equal(Buffer.allocUnsafe(1).fill(0).fill('\u0222')[0], 0xc8);
// BINARY
testBufs('abc', 'binary');
testBufs('\u0222aa', 'binary');
testBufs('a\u0234b\u0235c\u0236', 'binary');
testBufs('abc', 4, 'binary');
testBufs('abc', 5, 'binary');
testBufs('abc', SIZE, 'binary');
testBufs('\u0222aa', 2, 'binary');
testBufs('\u0222aa', 8, 'binary');
testBufs('a\u0234b\u0235c\u0236', 4, 'binary');
testBufs('a\u0234b\u0235c\u0236', 12, 'binary');
testBufs('abc', 4, -1, 'binary');
testBufs('abc', 4, 1, 'binary');
testBufs('abc', 5, 1, 'binary');
testBufs('\u0222aa', 2, -1, 'binary');
testBufs('\u0222aa', 8, 1, 'binary');
testBufs('a\u0234b\u0235c\u0236', 4, -1, 'binary');
testBufs('a\u0234b\u0235c\u0236', 4, 1, 'binary');
testBufs('a\u0234b\u0235c\u0236', 12, 1, 'binary');
// LATIN1
testBufs('abc', 'latin1');
testBufs('\u0222aa', 'latin1');
testBufs('a\u0234b\u0235c\u0236', 'latin1');
testBufs('abc', 4, 'latin1');
testBufs('abc', 5, 'latin1');
testBufs('abc', SIZE, 'latin1');
testBufs('\u0222aa', 2, 'latin1');
testBufs('\u0222aa', 8, 'latin1');
testBufs('a\u0234b\u0235c\u0236', 4, 'latin1');
testBufs('a\u0234b\u0235c\u0236', 12, 'latin1');
testBufs('abc', 4, -1, 'latin1');
testBufs('abc', 4, 1, 'latin1');
testBufs('abc', 5, 1, 'latin1');
testBufs('\u0222aa', 2, -1, 'latin1');
testBufs('\u0222aa', 8, 1, 'latin1');
testBufs('a\u0234b\u0235c\u0236', 4, -1, 'latin1');
testBufs('a\u0234b\u0235c\u0236', 4, 1, 'latin1');
testBufs('a\u0234b\u0235c\u0236', 12, 1, 'latin1');
// UCS2
testBufs('abc', 'ucs2');
testBufs('\u0222aa', 'ucs2');
testBufs('a\u0234b\u0235c\u0236', 'ucs2');
testBufs('abc', 4, 'ucs2');
testBufs('abc', SIZE, 'ucs2');
testBufs('\u0222aa', 2, 'ucs2');
testBufs('\u0222aa', 8, 'ucs2');
testBufs('a\u0234b\u0235c\u0236', 4, 'ucs2');
testBufs('a\u0234b\u0235c\u0236', 12, 'ucs2');
testBufs('abc', 4, -1, 'ucs2');
testBufs('abc', 4, 1, 'ucs2');
testBufs('abc', 5, 1, 'ucs2');
testBufs('\u0222aa', 2, -1, 'ucs2');
testBufs('\u0222aa', 8, 1, 'ucs2');
testBufs('a\u0234b\u0235c\u0236', 4, -1, 'ucs2');
testBufs('a\u0234b\u0235c\u0236', 4, 1, 'ucs2');
testBufs('a\u0234b\u0235c\u0236', 12, 1, 'ucs2');
assert.equal(Buffer.allocUnsafe(1).fill('\u0222', 'ucs2')[0],
os.endianness() === 'LE' ? 0x22 : 0x02);
// HEX
testBufs('616263', 'hex');
testBufs('c8a26161', 'hex');
testBufs('61c8b462c8b563c8b6', 'hex');
testBufs('616263', 4, 'hex');
testBufs('616263', 5, 'hex');
testBufs('616263', SIZE, 'hex');
testBufs('c8a26161', 2, 'hex');
testBufs('c8a26161', 8, 'hex');
testBufs('61c8b462c8b563c8b6', 4, 'hex');
testBufs('61c8b462c8b563c8b6', 12, 'hex');
testBufs('616263', 4, -1, 'hex');
testBufs('616263', 4, 1, 'hex');
testBufs('616263', 5, 1, 'hex');
testBufs('c8a26161', 2, -1, 'hex');
testBufs('c8a26161', 8, 1, 'hex');
testBufs('61c8b462c8b563c8b6', 4, -1, 'hex');
testBufs('61c8b462c8b563c8b6', 4, 1, 'hex');
testBufs('61c8b462c8b563c8b6', 12, 1, 'hex');
// Make sure this operation doesn't go on forever
buf1.fill('yKJh', 'hex');
assert.throws(() => buf1.fill('\u0222', 'hex'));
// BASE64
testBufs('YWJj', 'ucs2');
testBufs('yKJhYQ==', 'ucs2');
testBufs('Yci0Ysi1Y8i2', 'ucs2');
testBufs('YWJj', 4, 'ucs2');
testBufs('YWJj', SIZE, 'ucs2');
testBufs('yKJhYQ==', 2, 'ucs2');
testBufs('yKJhYQ==', 8, 'ucs2');
testBufs('Yci0Ysi1Y8i2', 4, 'ucs2');
testBufs('Yci0Ysi1Y8i2', 12, 'ucs2');
testBufs('YWJj', 4, -1, 'ucs2');
testBufs('YWJj', 4, 1, 'ucs2');
testBufs('YWJj', 5, 1, 'ucs2');
testBufs('yKJhYQ==', 2, -1, 'ucs2');
testBufs('yKJhYQ==', 8, 1, 'ucs2');
testBufs('Yci0Ysi1Y8i2', 4, -1, 'ucs2');
testBufs('Yci0Ysi1Y8i2', 4, 1, 'ucs2');
testBufs('Yci0Ysi1Y8i2', 12, 1, 'ucs2');
// Buffer
function deepStrictEqualValues(buf, arr) {
for (var [index, value] of buf.entries()) {
assert.deepStrictEqual(value, arr[index]);
}
}
var buf2Fill = Buffer.allocUnsafe(1).fill(2);
deepStrictEqualValues(genBuffer(4, [buf2Fill]), [2, 2, 2, 2]);
deepStrictEqualValues(genBuffer(4, [buf2Fill, 1]), [0, 2, 2, 2]);
deepStrictEqualValues(genBuffer(4, [buf2Fill, 1, 3]), [0, 2, 2, 0]);
deepStrictEqualValues(genBuffer(4, [buf2Fill, 1, 1]), [0, 0, 0, 0]);
deepStrictEqualValues(genBuffer(4, [buf2Fill, 1, -1]), [0, 0, 0, 0]);
var hexBufFill = Buffer.allocUnsafe(2).fill(0).fill('0102', 'hex');
deepStrictEqualValues(genBuffer(4, [hexBufFill]), [1, 2, 1, 2]);
deepStrictEqualValues(genBuffer(4, [hexBufFill, 1]), [0, 1, 2, 1]);
deepStrictEqualValues(genBuffer(4, [hexBufFill, 1, 3]), [0, 1, 2, 0]);
deepStrictEqualValues(genBuffer(4, [hexBufFill, 1, 1]), [0, 0, 0, 0]);
deepStrictEqualValues(genBuffer(4, [hexBufFill, 1, -1]), [0, 0, 0, 0]);
// Check exceptions
assert.throws(() => buf1.fill(0, -1));
assert.throws(() => buf1.fill(0, 0, buf1.length + 1));
assert.throws(() => buf1.fill('', -1));
assert.throws(() => buf1.fill('', 0, buf1.length + 1));
assert.throws(() => buf1.fill('a', 0, buf1.length, 'node rocks!'));
assert.throws(() => buf1.fill('a', 0, 0, NaN));
assert.throws(() => buf1.fill('a', 0, 0, null));
assert.throws(() => buf1.fill('a', 0, 0, 'foo'));
function genBuffer(size, args) {
var b = Buffer.allocUnsafe(size);
return b.fill(0).fill.apply(b, args);
}
function bufReset() {
buf1.fill(0);
buf2.fill(0);
}
// This is mostly accurate. Except write() won't write partial bytes to the
// string while fill() blindly copies bytes into memory. To account for that an
// error will be thrown if not all the data can be written, and the SIZE has
// been massaged to work with the input characters.
function writeToFill(string, offset, end, encoding) {
if (typeof offset === 'string') {
encoding = offset;
offset = 0;
end = buf2.length;
} else if (typeof end === 'string') {
encoding = end;
end = buf2.length;
} else if (end === undefined) {
end = buf2.length;
}
if (offset < 0 || end > buf2.length)
throw new RangeError('Out of range index');
if (end <= offset)
return buf2;
offset >>>= 0;
end >>>= 0;
assert(offset <= buf2.length);
// Convert "end" to "length" (which write understands).
var length = end - offset < 0 ? 0 : end - offset;
var wasZero = false;
do {
var written = buf2.write(string, offset, length, encoding);
offset += written;
// Safety check in case write falls into infinite loop.
if (written === 0) {
if (wasZero)
throw new Error('Could not write all data to Buffer');
else
wasZero = true;
}
} while (offset < buf2.length);
// Correction for UCS2 operations.
if (os.endianness() === 'BE' && encoding === 'ucs2') {
for (var i = 0; i < buf2.length; i += 2) {
var tmp = buf2[i];
buf2[i] = buf2[i + 1];
buf2[i + 1] = tmp;
}
}
return buf2;
}
function testBufs(string, offset, length, encoding) {
bufReset();
buf1.fill.apply(buf1, arguments);
// Swap bytes on BE archs for ucs2 encoding.
assert.deepStrictEqual(buf1.fill.apply(buf1, arguments),
writeToFill.apply(null, arguments));
}

305
node_modules/buffer/test/node/test-buffer-includes.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
var Buffer = require('../../').Buffer;
var b = Buffer.from('abcdef');
var buf_a = Buffer.from('a');
var buf_bc = Buffer.from('bc');
var buf_f = Buffer.from('f');
var buf_z = Buffer.from('z');
var buf_empty = Buffer.from('');
assert(b.includes('a'));
assert(!b.includes('a', 1));
assert(!b.includes('a', -1));
assert(!b.includes('a', -4));
assert(b.includes('a', -b.length));
assert(b.includes('a', NaN));
assert(b.includes('a', -Infinity));
assert(!b.includes('a', Infinity));
assert(b.includes('bc'));
assert(!b.includes('bc', 2));
assert(!b.includes('bc', -1));
assert(!b.includes('bc', -3));
assert(b.includes('bc', -5));
assert(b.includes('bc', NaN));
assert(b.includes('bc', -Infinity));
assert(!b.includes('bc', Infinity));
assert(b.includes('f'), b.length - 1);
assert(!b.includes('z'));
assert(!b.includes(''));
assert(!b.includes('', 1));
assert(!b.includes('', b.length + 1));
assert(!b.includes('', Infinity));
assert(b.includes(buf_a));
assert(!b.includes(buf_a, 1));
assert(!b.includes(buf_a, -1));
assert(!b.includes(buf_a, -4));
assert(b.includes(buf_a, -b.length));
assert(b.includes(buf_a, NaN));
assert(b.includes(buf_a, -Infinity));
assert(!b.includes(buf_a, Infinity));
assert(b.includes(buf_bc));
assert(!b.includes(buf_bc, 2));
assert(!b.includes(buf_bc, -1));
assert(!b.includes(buf_bc, -3));
assert(b.includes(buf_bc, -5));
assert(b.includes(buf_bc, NaN));
assert(b.includes(buf_bc, -Infinity));
assert(!b.includes(buf_bc, Infinity));
assert(b.includes(buf_f), b.length - 1);
assert(!b.includes(buf_z));
assert(!b.includes(buf_empty));
assert(!b.includes(buf_empty, 1));
assert(!b.includes(buf_empty, b.length + 1));
assert(!b.includes(buf_empty, Infinity));
assert(b.includes(0x61));
assert(!b.includes(0x61, 1));
assert(!b.includes(0x61, -1));
assert(!b.includes(0x61, -4));
assert(b.includes(0x61, -b.length));
assert(b.includes(0x61, NaN));
assert(b.includes(0x61, -Infinity));
assert(!b.includes(0x61, Infinity));
assert(!b.includes(0x0));
// test offsets
assert(b.includes('d', 2));
assert(b.includes('f', 5));
assert(b.includes('f', -1));
assert(!b.includes('f', 6));
assert(b.includes(Buffer.from('d'), 2));
assert(b.includes(Buffer.from('f'), 5));
assert(b.includes(Buffer.from('f'), -1));
assert(!b.includes(Buffer.from('f'), 6));
assert(!Buffer.from('ff').includes(Buffer.from('f'), 1, 'ucs2'));
// test hex encoding
assert.strictEqual(
Buffer.from(b.toString('hex'), 'hex')
.includes('64', 0, 'hex'),
true
);
assert.strictEqual(
Buffer.from(b.toString('hex'), 'hex')
.includes(Buffer.from('64', 'hex'), 0, 'hex'),
true
);
// test base64 encoding
assert.strictEqual(
Buffer.from(b.toString('base64'), 'base64')
.includes('ZA==', 0, 'base64'),
true
);
assert.strictEqual(
Buffer.from(b.toString('base64'), 'base64')
.includes(Buffer.from('ZA==', 'base64'), 0, 'base64'),
true
);
// test ascii encoding
assert.strictEqual(
Buffer.from(b.toString('ascii'), 'ascii')
.includes('d', 0, 'ascii'),
true
);
assert.strictEqual(
Buffer.from(b.toString('ascii'), 'ascii')
.includes(Buffer.from('d', 'ascii'), 0, 'ascii'),
true
);
// test latin1 encoding
assert.strictEqual(
Buffer.from(b.toString('latin1'), 'latin1')
.includes('d', 0, 'latin1'),
true
);
assert.strictEqual(
Buffer.from(b.toString('latin1'), 'latin1')
.includes(Buffer.from('d', 'latin1'), 0, 'latin1'),
true
);
// test binary encoding
assert.strictEqual(
Buffer.from(b.toString('binary'), 'binary')
.includes('d', 0, 'binary'),
true
);
assert.strictEqual(
Buffer.from(b.toString('binary'), 'binary')
.includes(Buffer.from('d', 'binary'), 0, 'binary'),
true
);
// test usc2 encoding
var twoByteString = Buffer.from('\u039a\u0391\u03a3\u03a3\u0395', 'ucs2');
assert(twoByteString.includes('\u0395', 4, 'ucs2'));
assert(twoByteString.includes('\u03a3', -4, 'ucs2'));
assert(twoByteString.includes('\u03a3', -6, 'ucs2'));
assert(twoByteString.includes(
Buffer.from('\u03a3', 'ucs2'), -6, 'ucs2'));
assert(!twoByteString.includes('\u03a3', -2, 'ucs2'));
var mixedByteStringUcs2 =
Buffer.from('\u039a\u0391abc\u03a3\u03a3\u0395', 'ucs2');
assert(mixedByteStringUcs2.includes('bc', 0, 'ucs2'));
assert(mixedByteStringUcs2.includes('\u03a3', 0, 'ucs2'));
assert(!mixedByteStringUcs2.includes('\u0396', 0, 'ucs2'));
assert(
6, mixedByteStringUcs2.includes(Buffer.from('bc', 'ucs2'), 0, 'ucs2'));
assert(
10, mixedByteStringUcs2.includes(Buffer.from('\u03a3', 'ucs2'),
0, 'ucs2'));
assert(
-1, mixedByteStringUcs2.includes(Buffer.from('\u0396', 'ucs2'),
0, 'ucs2'));
twoByteString = Buffer.from('\u039a\u0391\u03a3\u03a3\u0395', 'ucs2');
// Test single char pattern
assert(twoByteString.includes('\u039a', 0, 'ucs2'));
assert(twoByteString.includes('\u0391', 0, 'ucs2'), 'Alpha');
assert(twoByteString.includes('\u03a3', 0, 'ucs2'), 'First Sigma');
assert(twoByteString.includes('\u03a3', 6, 'ucs2'), 'Second Sigma');
assert(twoByteString.includes('\u0395', 0, 'ucs2'), 'Epsilon');
assert(!twoByteString.includes('\u0392', 0, 'ucs2'), 'Not beta');
// Test multi-char pattern
assert(twoByteString.includes('\u039a\u0391', 0, 'ucs2'), 'Lambda Alpha');
assert(twoByteString.includes('\u0391\u03a3', 0, 'ucs2'), 'Alpha Sigma');
assert(twoByteString.includes('\u03a3\u03a3', 0, 'ucs2'), 'Sigma Sigma');
assert(twoByteString.includes('\u03a3\u0395', 0, 'ucs2'), 'Sigma Epsilon');
var mixedByteStringUtf8 = Buffer.from('\u039a\u0391abc\u03a3\u03a3\u0395');
assert(mixedByteStringUtf8.includes('bc'));
assert(mixedByteStringUtf8.includes('bc', 5));
assert(mixedByteStringUtf8.includes('bc', -8));
assert(mixedByteStringUtf8.includes('\u03a3'));
assert(!mixedByteStringUtf8.includes('\u0396'));
// Test complex string includes algorithms. Only trigger for long strings.
// Long string that isn't a simple repeat of a shorter string.
var longString = 'A';
for (var i = 66; i < 76; i++) { // from 'B' to 'K'
longString = longString + String.fromCharCode(i) + longString;
}
var longBufferString = Buffer.from(longString);
// pattern of 15 chars, repeated every 16 chars in long
var pattern = 'ABACABADABACABA';
for (var i = 0; i < longBufferString.length - pattern.length; i += 7) {
var includes = longBufferString.includes(pattern, i);
assert(includes, 'Long ABACABA...-string at index ' + i);
}
assert(longBufferString.includes('AJABACA'), 'Long AJABACA, First J');
assert(longBufferString.includes('AJABACA', 511), 'Long AJABACA, Second J');
pattern = 'JABACABADABACABA';
assert(longBufferString.includes(pattern), 'Long JABACABA..., First J');
assert(longBufferString.includes(pattern, 512), 'Long JABACABA..., Second J');
// Search for a non-ASCII string in a pure ASCII string.
var asciiString = Buffer.from(
'arglebargleglopglyfarglebargleglopglyfarglebargleglopglyf');
assert(!asciiString.includes('\x2061'));
assert(asciiString.includes('leb', 0));
// Search in string containing many non-ASCII chars.
var allCodePoints = [];
for (var i = 0; i < 65536; i++) allCodePoints[i] = i;
var allCharsString = String.fromCharCode.apply(String, allCodePoints);
var allCharsBufferUtf8 = Buffer.from(allCharsString);
var allCharsBufferUcs2 = Buffer.from(allCharsString, 'ucs2');
// Search for string long enough to trigger complex search with ASCII pattern
// and UC16 subject.
assert(!allCharsBufferUtf8.includes('notfound'));
assert(!allCharsBufferUcs2.includes('notfound'));
// Find substrings in Utf8.
var lengths = [1, 3, 15]; // Single char, simple and complex.
var indices = [0x5, 0x60, 0x400, 0x680, 0x7ee, 0xFF02, 0x16610, 0x2f77b];
for (var lengthIndex = 0; lengthIndex < lengths.length; lengthIndex++) {
for (var i = 0; i < indices.length; i++) {
var index = indices[i];
var length = lengths[lengthIndex];
if (index + length > 0x7F) {
length = 2 * length;
}
if (index + length > 0x7FF) {
length = 3 * length;
}
if (index + length > 0xFFFF) {
length = 4 * length;
}
var patternBufferUtf8 = allCharsBufferUtf8.slice(index, index + length);
assert(index, allCharsBufferUtf8.includes(patternBufferUtf8));
var patternStringUtf8 = patternBufferUtf8.toString();
assert(index, allCharsBufferUtf8.includes(patternStringUtf8));
}
}
// Find substrings in Usc2.
lengths = [2, 4, 16]; // Single char, simple and complex.
indices = [0x5, 0x65, 0x105, 0x205, 0x285, 0x2005, 0x2085, 0xfff0];
for (var lengthIndex = 0; lengthIndex < lengths.length; lengthIndex++) {
for (var i = 0; i < indices.length; i++) {
var index = indices[i] * 2;
var length = lengths[lengthIndex];
var patternBufferUcs2 =
allCharsBufferUcs2.slice(index, index + length);
assert(
index, allCharsBufferUcs2.includes(patternBufferUcs2, 0, 'ucs2'));
var patternStringUcs2 = patternBufferUcs2.toString('ucs2');
assert(
index, allCharsBufferUcs2.includes(patternStringUcs2, 0, 'ucs2'));
}
}
assert.throws(function() {
b.includes(function() { });
});
assert.throws(function() {
b.includes({});
});
assert.throws(function() {
b.includes([]);
});
// test truncation of Number arguments to uint8
{
var buf = Buffer.from('this is a test');
assert.ok(buf.includes(0x6973));
assert.ok(buf.includes(0x697320));
assert.ok(buf.includes(0x69732069));
assert.ok(buf.includes(0x697374657374));
assert.ok(buf.includes(0x69737374));
assert.ok(buf.includes(0x69737465));
assert.ok(buf.includes(0x69737465));
assert.ok(buf.includes(-140));
assert.ok(buf.includes(-152));
assert.ok(!buf.includes(0xff));
assert.ok(!buf.includes(0xffff));
}

523
node_modules/buffer/test/node/test-buffer-indexof.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
var Buffer = require('../../').Buffer;
var b = Buffer.from('abcdef');
var buf_a = Buffer.from('a');
var buf_bc = Buffer.from('bc');
var buf_f = Buffer.from('f');
var buf_z = Buffer.from('z');
var buf_empty = Buffer.from('');
assert.equal(b.indexOf('a'), 0);
assert.equal(b.indexOf('a', 1), -1);
assert.equal(b.indexOf('a', -1), -1);
assert.equal(b.indexOf('a', -4), -1);
assert.equal(b.indexOf('a', -b.length), 0);
assert.equal(b.indexOf('a', NaN), 0);
assert.equal(b.indexOf('a', -Infinity), 0);
assert.equal(b.indexOf('a', Infinity), -1);
assert.equal(b.indexOf('bc'), 1);
assert.equal(b.indexOf('bc', 2), -1);
assert.equal(b.indexOf('bc', -1), -1);
assert.equal(b.indexOf('bc', -3), -1);
assert.equal(b.indexOf('bc', -5), 1);
assert.equal(b.indexOf('bc', NaN), 1);
assert.equal(b.indexOf('bc', -Infinity), 1);
assert.equal(b.indexOf('bc', Infinity), -1);
assert.equal(b.indexOf('f'), b.length - 1);
assert.equal(b.indexOf('z'), -1);
assert.equal(b.indexOf(''), -1);
assert.equal(b.indexOf('', 1), -1);
assert.equal(b.indexOf('', b.length + 1), -1);
assert.equal(b.indexOf('', Infinity), -1);
assert.equal(b.indexOf(buf_a), 0);
assert.equal(b.indexOf(buf_a, 1), -1);
assert.equal(b.indexOf(buf_a, -1), -1);
assert.equal(b.indexOf(buf_a, -4), -1);
assert.equal(b.indexOf(buf_a, -b.length), 0);
assert.equal(b.indexOf(buf_a, NaN), 0);
assert.equal(b.indexOf(buf_a, -Infinity), 0);
assert.equal(b.indexOf(buf_a, Infinity), -1);
assert.equal(b.indexOf(buf_bc), 1);
assert.equal(b.indexOf(buf_bc, 2), -1);
assert.equal(b.indexOf(buf_bc, -1), -1);
assert.equal(b.indexOf(buf_bc, -3), -1);
assert.equal(b.indexOf(buf_bc, -5), 1);
assert.equal(b.indexOf(buf_bc, NaN), 1);
assert.equal(b.indexOf(buf_bc, -Infinity), 1);
assert.equal(b.indexOf(buf_bc, Infinity), -1);
assert.equal(b.indexOf(buf_f), b.length - 1);
assert.equal(b.indexOf(buf_z), -1);
assert.equal(b.indexOf(buf_empty), -1);
assert.equal(b.indexOf(buf_empty, 1), -1);
assert.equal(b.indexOf(buf_empty, b.length + 1), -1);
assert.equal(b.indexOf(buf_empty, Infinity), -1);
assert.equal(b.indexOf(0x61), 0);
assert.equal(b.indexOf(0x61, 1), -1);
assert.equal(b.indexOf(0x61, -1), -1);
assert.equal(b.indexOf(0x61, -4), -1);
assert.equal(b.indexOf(0x61, -b.length), 0);
assert.equal(b.indexOf(0x61, NaN), 0);
assert.equal(b.indexOf(0x61, -Infinity), 0);
assert.equal(b.indexOf(0x61, Infinity), -1);
assert.equal(b.indexOf(0x0), -1);
// test offsets
assert.equal(b.indexOf('d', 2), 3);
assert.equal(b.indexOf('f', 5), 5);
assert.equal(b.indexOf('f', -1), 5);
assert.equal(b.indexOf('f', 6), -1);
assert.equal(b.indexOf(Buffer.from('d'), 2), 3);
assert.equal(b.indexOf(Buffer.from('f'), 5), 5);
assert.equal(b.indexOf(Buffer.from('f'), -1), 5);
assert.equal(b.indexOf(Buffer.from('f'), 6), -1);
assert.equal(Buffer.from('ff').indexOf(Buffer.from('f'), 1, 'ucs2'), -1);
// test hex encoding
assert.strictEqual(
Buffer.from(b.toString('hex'), 'hex')
.indexOf('64', 0, 'hex'),
3
);
assert.strictEqual(
Buffer.from(b.toString('hex'), 'hex')
.indexOf(Buffer.from('64', 'hex'), 0, 'hex'),
3
);
// test base64 encoding
assert.strictEqual(
Buffer.from(b.toString('base64'), 'base64')
.indexOf('ZA==', 0, 'base64'),
3
);
assert.strictEqual(
Buffer.from(b.toString('base64'), 'base64')
.indexOf(Buffer.from('ZA==', 'base64'), 0, 'base64'),
3
);
// test ascii encoding
assert.strictEqual(
Buffer.from(b.toString('ascii'), 'ascii')
.indexOf('d', 0, 'ascii'),
3
);
assert.strictEqual(
Buffer.from(b.toString('ascii'), 'ascii')
.indexOf(Buffer.from('d', 'ascii'), 0, 'ascii'),
3
);
// test latin1 encoding
assert.strictEqual(
Buffer.from(b.toString('latin1'), 'latin1')
.indexOf('d', 0, 'latin1'),
3
);
assert.strictEqual(
Buffer.from(b.toString('latin1'), 'latin1')
.indexOf(Buffer.from('d', 'latin1'), 0, 'latin1'),
3
);
assert.strictEqual(
Buffer.from('aa\u00e8aa', 'latin1')
.indexOf('\u00e8', 'latin1'),
2
);
assert.strictEqual(
Buffer.from('\u00e8', 'latin1')
.indexOf('\u00e8', 'latin1'),
0
);
assert.strictEqual(
Buffer.from('\u00e8', 'latin1')
.indexOf(Buffer.from('\u00e8', 'latin1'), 'latin1'),
0
);
// test binary encoding
assert.strictEqual(
Buffer.from(b.toString('binary'), 'binary')
.indexOf('d', 0, 'binary'),
3
);
assert.strictEqual(
Buffer.from(b.toString('binary'), 'binary')
.indexOf(Buffer.from('d', 'binary'), 0, 'binary'),
3
);
assert.strictEqual(
Buffer.from('aa\u00e8aa', 'binary')
.indexOf('\u00e8', 'binary'),
2
);
assert.strictEqual(
Buffer.from('\u00e8', 'binary')
.indexOf('\u00e8', 'binary'),
0
);
assert.strictEqual(
Buffer.from('\u00e8', 'binary')
.indexOf(Buffer.from('\u00e8', 'binary'), 'binary'),
0
);
// test optional offset with passed encoding
assert.equal(Buffer.from('aaaa0').indexOf('30', 'hex'), 4);
assert.equal(Buffer.from('aaaa00a').indexOf('3030', 'hex'), 4);
{
// test usc2 encoding
var twoByteString = Buffer.from('\u039a\u0391\u03a3\u03a3\u0395', 'ucs2');
assert.equal(8, twoByteString.indexOf('\u0395', 4, 'ucs2'));
assert.equal(6, twoByteString.indexOf('\u03a3', -4, 'ucs2'));
assert.equal(4, twoByteString.indexOf('\u03a3', -6, 'ucs2'));
assert.equal(4, twoByteString.indexOf(
Buffer.from('\u03a3', 'ucs2'), -6, 'ucs2'));
assert.equal(-1, twoByteString.indexOf('\u03a3', -2, 'ucs2'));
}
var mixedByteStringUcs2 =
Buffer.from('\u039a\u0391abc\u03a3\u03a3\u0395', 'ucs2');
assert.equal(6, mixedByteStringUcs2.indexOf('bc', 0, 'ucs2'));
assert.equal(10, mixedByteStringUcs2.indexOf('\u03a3', 0, 'ucs2'));
assert.equal(-1, mixedByteStringUcs2.indexOf('\u0396', 0, 'ucs2'));
assert.equal(
6, mixedByteStringUcs2.indexOf(Buffer.from('bc', 'ucs2'), 0, 'ucs2'));
assert.equal(
10, mixedByteStringUcs2.indexOf(Buffer.from('\u03a3', 'ucs2'), 0, 'ucs2'));
assert.equal(
-1, mixedByteStringUcs2.indexOf(Buffer.from('\u0396', 'ucs2'), 0, 'ucs2'));
{
var twoByteString = Buffer.from('\u039a\u0391\u03a3\u03a3\u0395', 'ucs2');
// Test single char pattern
assert.equal(0, twoByteString.indexOf('\u039a', 0, 'ucs2'));
assert.equal(2, twoByteString.indexOf('\u0391', 0, 'ucs2'), 'Alpha');
assert.equal(4, twoByteString.indexOf('\u03a3', 0, 'ucs2'), 'First Sigma');
assert.equal(6, twoByteString.indexOf('\u03a3', 6, 'ucs2'), 'Second Sigma');
assert.equal(8, twoByteString.indexOf('\u0395', 0, 'ucs2'), 'Epsilon');
assert.equal(-1, twoByteString.indexOf('\u0392', 0, 'ucs2'), 'Not beta');
// Test multi-char pattern
assert.equal(
0, twoByteString.indexOf('\u039a\u0391', 0, 'ucs2'), 'Lambda Alpha');
assert.equal(
2, twoByteString.indexOf('\u0391\u03a3', 0, 'ucs2'), 'Alpha Sigma');
assert.equal(
4, twoByteString.indexOf('\u03a3\u03a3', 0, 'ucs2'), 'Sigma Sigma');
assert.equal(
6, twoByteString.indexOf('\u03a3\u0395', 0, 'ucs2'), 'Sigma Epsilon');
}
var mixedByteStringUtf8 = Buffer.from('\u039a\u0391abc\u03a3\u03a3\u0395');
assert.equal(5, mixedByteStringUtf8.indexOf('bc'));
assert.equal(5, mixedByteStringUtf8.indexOf('bc', 5));
assert.equal(5, mixedByteStringUtf8.indexOf('bc', -8));
assert.equal(7, mixedByteStringUtf8.indexOf('\u03a3'));
assert.equal(-1, mixedByteStringUtf8.indexOf('\u0396'));
// Test complex string indexOf algorithms. Only trigger for long strings.
// Long string that isn't a simple repeat of a shorter string.
var longString = 'A';
for (var i = 66; i < 76; i++) { // from 'B' to 'K'
longString = longString + String.fromCharCode(i) + longString;
}
var longBufferString = Buffer.from(longString);
// pattern of 15 chars, repeated every 16 chars in long
var pattern = 'ABACABADABACABA';
for (var i = 0; i < longBufferString.length - pattern.length; i += 7) {
var index = longBufferString.indexOf(pattern, i);
assert.equal((i + 15) & ~0xf, index, 'Long ABACABA...-string at index ' + i);
}
assert.equal(510, longBufferString.indexOf('AJABACA'), 'Long AJABACA, First J');
assert.equal(
1534, longBufferString.indexOf('AJABACA', 511), 'Long AJABACA, Second J');
pattern = 'JABACABADABACABA';
assert.equal(
511, longBufferString.indexOf(pattern), 'Long JABACABA..., First J');
assert.equal(
1535, longBufferString.indexOf(pattern, 512), 'Long JABACABA..., Second J');
// Search for a non-ASCII string in a pure ASCII string.
var asciiString = Buffer.from(
'arglebargleglopglyfarglebargleglopglyfarglebargleglopglyf');
assert.equal(-1, asciiString.indexOf('\x2061'));
assert.equal(3, asciiString.indexOf('leb', 0));
// Search in string containing many non-ASCII chars.
var allCodePoints = [];
for (var i = 0; i < 65536; i++) allCodePoints[i] = i;
var allCharsString = String.fromCharCode.apply(String, allCodePoints);
var allCharsBufferUtf8 = Buffer.from(allCharsString);
var allCharsBufferUcs2 = Buffer.from(allCharsString, 'ucs2');
// Search for string long enough to trigger complex search with ASCII pattern
// and UC16 subject.
assert.equal(-1, allCharsBufferUtf8.indexOf('notfound'));
assert.equal(-1, allCharsBufferUcs2.indexOf('notfound'));
// Needle is longer than haystack, but only because it's encoded as UTF-16
assert.strictEqual(Buffer.from('aaaa').indexOf('a'.repeat(4), 'ucs2'), -1);
assert.strictEqual(Buffer.from('aaaa').indexOf('a'.repeat(4), 'utf8'), 0);
assert.strictEqual(Buffer.from('aaaa').indexOf('你好', 'ucs2'), -1);
// Haystack has odd length, but the needle is UCS2.
// assert.strictEqual(Buffer.from('aaaaa').indexOf('b', 'ucs2'), -1);
{
// Find substrings in Utf8.
var lengths = [1, 3, 15]; // Single char, simple and complex.
var indices = [0x5, 0x60, 0x400, 0x680, 0x7ee, 0xFF02, 0x16610, 0x2f77b];
for (var lengthIndex = 0; lengthIndex < lengths.length; lengthIndex++) {
for (var i = 0; i < indices.length; i++) {
var index = indices[i];
var length = lengths[lengthIndex];
if (index + length > 0x7F) {
length = 2 * length;
}
if (index + length > 0x7FF) {
length = 3 * length;
}
if (index + length > 0xFFFF) {
length = 4 * length;
}
var patternBufferUtf8 = allCharsBufferUtf8.slice(index, index + length);
assert.equal(index, allCharsBufferUtf8.indexOf(patternBufferUtf8));
var patternStringUtf8 = patternBufferUtf8.toString();
assert.equal(index, allCharsBufferUtf8.indexOf(patternStringUtf8));
}
}
}
{
// Find substrings in Usc2.
var lengths = [2, 4, 16]; // Single char, simple and complex.
var indices = [0x5, 0x65, 0x105, 0x205, 0x285, 0x2005, 0x2085, 0xfff0];
for (var lengthIndex = 0; lengthIndex < lengths.length; lengthIndex++) {
for (var i = 0; i < indices.length; i++) {
var index = indices[i] * 2;
var length = lengths[lengthIndex];
var patternBufferUcs2 =
allCharsBufferUcs2.slice(index, index + length);
assert.equal(
index, allCharsBufferUcs2.indexOf(patternBufferUcs2, 0, 'ucs2'));
var patternStringUcs2 = patternBufferUcs2.toString('ucs2');
assert.equal(
index, allCharsBufferUcs2.indexOf(patternStringUcs2, 0, 'ucs2'));
}
}
}
assert.throws(function() {
b.indexOf(function() { });
});
assert.throws(function() {
b.indexOf({});
});
assert.throws(function() {
b.indexOf([]);
});
// All code for handling encodings is shared between Buffer.indexOf and
// Buffer.lastIndexOf, so only testing the separate lastIndexOf semantics.
// Test lastIndexOf basic functionality; Buffer b contains 'abcdef'.
// lastIndexOf string:
assert.equal(b.lastIndexOf('a'), 0);
assert.equal(b.lastIndexOf('a', 1), 0);
assert.equal(b.lastIndexOf('b', 1), 1);
assert.equal(b.lastIndexOf('c', 1), -1);
assert.equal(b.lastIndexOf('a', -1), 0);
assert.equal(b.lastIndexOf('a', -4), 0);
assert.equal(b.lastIndexOf('a', -b.length), 0);
assert.equal(b.lastIndexOf('a', -b.length - 1), -1);
assert.equal(b.lastIndexOf('a', NaN), 0);
assert.equal(b.lastIndexOf('a', -Infinity), -1);
assert.equal(b.lastIndexOf('a', Infinity), 0);
// lastIndexOf Buffer:
assert.equal(b.lastIndexOf(buf_a), 0);
assert.equal(b.lastIndexOf(buf_a, 1), 0);
assert.equal(b.lastIndexOf(buf_a, -1), 0);
assert.equal(b.lastIndexOf(buf_a, -4), 0);
assert.equal(b.lastIndexOf(buf_a, -b.length), 0);
assert.equal(b.lastIndexOf(buf_a, -b.length - 1), -1);
assert.equal(b.lastIndexOf(buf_a, NaN), 0);
assert.equal(b.lastIndexOf(buf_a, -Infinity), -1);
assert.equal(b.lastIndexOf(buf_a, Infinity), 0);
assert.equal(b.lastIndexOf(buf_bc), 1);
assert.equal(b.lastIndexOf(buf_bc, 2), 1);
assert.equal(b.lastIndexOf(buf_bc, -1), 1);
assert.equal(b.lastIndexOf(buf_bc, -3), 1);
assert.equal(b.lastIndexOf(buf_bc, -5), 1);
assert.equal(b.lastIndexOf(buf_bc, -6), -1);
assert.equal(b.lastIndexOf(buf_bc, NaN), 1);
assert.equal(b.lastIndexOf(buf_bc, -Infinity), -1);
assert.equal(b.lastIndexOf(buf_bc, Infinity), 1);
assert.equal(b.lastIndexOf(buf_f), b.length - 1);
assert.equal(b.lastIndexOf(buf_z), -1);
assert.equal(b.lastIndexOf(buf_empty), -1);
assert.equal(b.lastIndexOf(buf_empty, 1), -1);
assert.equal(b.lastIndexOf(buf_empty, b.length + 1), -1);
assert.equal(b.lastIndexOf(buf_empty, Infinity), -1);
// lastIndexOf number:
assert.equal(b.lastIndexOf(0x61), 0);
assert.equal(b.lastIndexOf(0x61, 1), 0);
assert.equal(b.lastIndexOf(0x61, -1), 0);
assert.equal(b.lastIndexOf(0x61, -4), 0);
assert.equal(b.lastIndexOf(0x61, -b.length), 0);
assert.equal(b.lastIndexOf(0x61, -b.length - 1), -1);
assert.equal(b.lastIndexOf(0x61, NaN), 0);
assert.equal(b.lastIndexOf(0x61, -Infinity), -1);
assert.equal(b.lastIndexOf(0x61, Infinity), 0);
assert.equal(b.lastIndexOf(0x0), -1);
// Test weird offset arguments.
// Behaviour should match String.lastIndexOf:
assert.equal(b.lastIndexOf('b', 0), -1);
assert.equal(b.lastIndexOf('b', undefined), 1);
assert.equal(b.lastIndexOf('b', null), -1);
assert.equal(b.lastIndexOf('b', {}), 1);
assert.equal(b.lastIndexOf('b', []), -1);
assert.equal(b.lastIndexOf('b', [2]), 1);
// Test needles longer than the haystack.
assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 'ucs2'), -1);
assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 'utf8'), -1);
assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 'latin1'), -1);
assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 'binary'), -1);
assert.strictEqual(b.lastIndexOf(Buffer.from('aaaaaaaaaaaaaaa')), -1);
assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 2, 'ucs2'), -1);
assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 3, 'utf8'), -1);
assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 5, 'latin1'), -1);
assert.strictEqual(b.lastIndexOf('aaaaaaaaaaaaaaa', 5, 'binary'), -1);
assert.strictEqual(b.lastIndexOf(Buffer.from('aaaaaaaaaaaaaaa'), 7), -1);
// 你好 expands to a total of 6 bytes using UTF-8 and 4 bytes using UTF-16
assert.strictEqual(buf_bc.lastIndexOf('你好', 'ucs2'), -1);
assert.strictEqual(buf_bc.lastIndexOf('你好', 'utf8'), -1);
assert.strictEqual(buf_bc.lastIndexOf('你好', 'latin1'), -1);
assert.strictEqual(buf_bc.lastIndexOf('你好', 'binary'), -1);
assert.strictEqual(buf_bc.lastIndexOf(Buffer.from('你好')), -1);
assert.strictEqual(buf_bc.lastIndexOf('你好', 2, 'ucs2'), -1);
assert.strictEqual(buf_bc.lastIndexOf('你好', 3, 'utf8'), -1);
assert.strictEqual(buf_bc.lastIndexOf('你好', 5, 'latin1'), -1);
assert.strictEqual(buf_bc.lastIndexOf('你好', 5, 'binary'), -1);
assert.strictEqual(buf_bc.lastIndexOf(Buffer.from('你好'), 7), -1);
// Test lastIndexOf on a longer buffer:
var bufferString = new Buffer('a man a plan a canal panama');
assert.equal(15, bufferString.lastIndexOf('canal'));
assert.equal(21, bufferString.lastIndexOf('panama'));
assert.equal(0, bufferString.lastIndexOf('a man a plan a canal panama'));
assert.equal(-1, bufferString.lastIndexOf('a man a plan a canal mexico'));
assert.equal(-1, bufferString.lastIndexOf('a man a plan a canal mexico city'));
assert.equal(-1, bufferString.lastIndexOf(Buffer.from('a'.repeat(1000))));
assert.equal(0, bufferString.lastIndexOf('a man a plan', 4));
assert.equal(13, bufferString.lastIndexOf('a '));
assert.equal(13, bufferString.lastIndexOf('a ', 13));
assert.equal(6, bufferString.lastIndexOf('a ', 12));
assert.equal(0, bufferString.lastIndexOf('a ', 5));
assert.equal(13, bufferString.lastIndexOf('a ', -1));
assert.equal(0, bufferString.lastIndexOf('a ', -27));
assert.equal(-1, bufferString.lastIndexOf('a ', -28));
// Test lastIndexOf for the case that the first character can be found,
// but in a part of the buffer that does not make search to search
// due do length constraints.
var abInUCS2 = Buffer.from('ab', 'ucs2');
assert.strictEqual(-1, Buffer.from('µaaaa¶bbbb', 'latin1').lastIndexOf('µ'));
assert.strictEqual(-1, Buffer.from('µaaaa¶bbbb', 'binary').lastIndexOf('µ'));
assert.strictEqual(-1, Buffer.from('bc').lastIndexOf('ab'));
assert.strictEqual(-1, Buffer.from('abc').lastIndexOf('qa'));
assert.strictEqual(-1, Buffer.from('abcdef').lastIndexOf('qabc'));
assert.strictEqual(-1, Buffer.from('bc').lastIndexOf(Buffer.from('ab')));
assert.strictEqual(-1, Buffer.from('bc', 'ucs2').lastIndexOf('ab', 'ucs2'));
assert.strictEqual(-1, Buffer.from('bc', 'ucs2').lastIndexOf(abInUCS2));
assert.strictEqual(0, Buffer.from('abc').lastIndexOf('ab'));
assert.strictEqual(0, Buffer.from('abc').lastIndexOf('ab', 1));
assert.strictEqual(0, Buffer.from('abc').lastIndexOf('ab', 2));
assert.strictEqual(0, Buffer.from('abc').lastIndexOf('ab', 3));
// The above tests test the LINEAR and SINGLE-CHAR strategies.
// Now, we test the BOYER-MOORE-HORSPOOL strategy.
// Test lastIndexOf on a long buffer w multiple matches:
pattern = 'JABACABADABACABA';
assert.equal(1535, longBufferString.lastIndexOf(pattern));
assert.equal(1535, longBufferString.lastIndexOf(pattern, 1535));
assert.equal(511, longBufferString.lastIndexOf(pattern, 1534));
// Finally, give it a really long input to trigger fallback from BMH to
// regular BOYER-MOORE (which has better worst-case complexity).
// Generate a really long Thue-Morse sequence of 'yolo' and 'swag',
// "yolo swag swag yolo swag yolo yolo swag" ..., goes on for about 5MB.
// This is hard to search because it all looks similar, but never repeats.
// countBits returns the number of bits in the binary reprsentation of n.
function countBits(n) {
for (var count = 0; n > 0; count++) {
n = n & (n - 1); // remove top bit
}
return count;
}
var parts = [];
for (var i = 0; i < 1000000; i++) {
parts.push((countBits(i) % 2 === 0) ? 'yolo' : 'swag');
}
var reallyLong = new Buffer(parts.join(' '));
assert.equal('yolo swag swag yolo', reallyLong.slice(0, 19).toString());
// Expensive reverse searches. Stress test lastIndexOf:
pattern = reallyLong.slice(0, 100000); // First 1/50th of the pattern.
assert.equal(4751360, reallyLong.lastIndexOf(pattern));
assert.equal(3932160, reallyLong.lastIndexOf(pattern, 4000000));
assert.equal(2949120, reallyLong.lastIndexOf(pattern, 3000000));
pattern = reallyLong.slice(100000, 200000); // Second 1/50th.
assert.equal(4728480, reallyLong.lastIndexOf(pattern));
pattern = reallyLong.slice(0, 1000000); // First 1/5th.
assert.equal(3932160, reallyLong.lastIndexOf(pattern));
pattern = reallyLong.slice(0, 2000000); // first 2/5ths.
assert.equal(0, reallyLong.lastIndexOf(pattern));
// test truncation of Number arguments to uint8
{
var buf = Buffer.from('this is a test');
assert.strictEqual(buf.indexOf(0x6973), 3);
assert.strictEqual(buf.indexOf(0x697320), 4);
assert.strictEqual(buf.indexOf(0x69732069), 2);
assert.strictEqual(buf.indexOf(0x697374657374), 0);
assert.strictEqual(buf.indexOf(0x69737374), 0);
assert.strictEqual(buf.indexOf(0x69737465), 11);
assert.strictEqual(buf.indexOf(0x69737465), 11);
assert.strictEqual(buf.indexOf(-140), 0);
assert.strictEqual(buf.indexOf(-152), 1);
assert.strictEqual(buf.indexOf(0xff), -1);
assert.strictEqual(buf.indexOf(0xffff), -1);
}

42
node_modules/buffer/test/node/test-buffer-inheritance.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
function T(n) {
var ui8 = new Uint8Array(n);
Object.setPrototypeOf(ui8, T.prototype);
return ui8;
}
Object.setPrototypeOf(T.prototype, Buffer.prototype);
Object.setPrototypeOf(T, Buffer);
T.prototype.sum = function sum() {
var cntr = 0;
for (var i = 0; i < this.length; i++)
cntr += this[i];
return cntr;
};
var vals = [new T(4), T(4)];
vals.forEach(function(t) {
assert.equal(t.constructor, T);
assert.equal(Object.getPrototypeOf(t), T.prototype);
assert.equal(Object.getPrototypeOf(Object.getPrototypeOf(t)),
Buffer.prototype);
t.fill(5);
var cntr = 0;
for (var i = 0; i < t.length; i++)
cntr += t[i];
assert.equal(t.length * 5, cntr);
// Check this does not throw
t.toString();
});

41
node_modules/buffer/test/node/test-buffer-inspect.js generated vendored Normal file
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@@ -0,0 +1,41 @@
'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
var util = require('util');
var buffer = require('../../');
buffer.INSPECT_MAX_BYTES = 2;
var b = Buffer.allocUnsafe(4);
b.fill('1234');
var s = buffer.SlowBuffer(4);
s.fill('1234');
var expected = '<Buffer 31 32 ... >';
assert.strictEqual(util.inspect(b), expected);
assert.strictEqual(util.inspect(s), expected);
b = Buffer.allocUnsafe(2);
b.fill('12');
s = buffer.SlowBuffer(2);
s.fill('12');
expected = '<Buffer 31 32>';
assert.strictEqual(util.inspect(b), expected);
assert.strictEqual(util.inspect(s), expected);
buffer.INSPECT_MAX_BYTES = Infinity;
assert.doesNotThrow(function() {
assert.strictEqual(util.inspect(b), expected);
assert.strictEqual(util.inspect(s), expected);
});

65
node_modules/buffer/test/node/test-buffer-iterator.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
var buffer = Buffer.from([1, 2, 3, 4, 5]);
var arr;
var b;
// buffers should be iterable
arr = [];
for (b of buffer)
arr.push(b);
assert.deepStrictEqual(arr, [1, 2, 3, 4, 5]);
// buffer iterators should be iterable
arr = [];
for (b of buffer[Symbol.iterator]())
arr.push(b);
assert.deepStrictEqual(arr, [1, 2, 3, 4, 5]);
// buffer#values() should return iterator for values
arr = [];
for (b of buffer.values())
arr.push(b);
assert.deepStrictEqual(arr, [1, 2, 3, 4, 5]);
// buffer#keys() should return iterator for keys
arr = [];
for (b of buffer.keys())
arr.push(b);
assert.deepStrictEqual(arr, [0, 1, 2, 3, 4]);
// buffer#entries() should return iterator for entries
arr = [];
for (b of buffer.entries())
arr.push(b);
assert.deepStrictEqual(arr, [
[0, 1],
[1, 2],
[2, 3],
[3, 4],
[4, 5]
]);

27
node_modules/buffer/test/node/test-buffer-safe-unsafe.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
var safe = Buffer.alloc(10);
function isZeroFilled(buf) {
for (var n = 0; n < buf.length; n++)
if (buf[n] !== 0) return false;
return true;
}
assert(isZeroFilled(safe));
// Test that unsafe allocations doesn't affect subsequent safe allocations
Buffer.allocUnsafe(10);
assert(isZeroFilled(new Float64Array(10)));
new Buffer(10);
assert(isZeroFilled(new Float64Array(10)));
Buffer.allocUnsafe(10);
assert(isZeroFilled(Buffer.alloc(10)));

63
node_modules/buffer/test/node/test-buffer-slow.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
var buffer = require('../../');
var Buffer = buffer.Buffer;
var SlowBuffer = buffer.SlowBuffer;
var ones = [1, 1, 1, 1];
// should create a Buffer
var sb = SlowBuffer(4);
assert(sb instanceof Buffer);
assert.strictEqual(sb.length, 4);
sb.fill(1);
for (var [key, value] of sb.entries()) {
assert.deepStrictEqual(value, ones[key]);
}
// underlying ArrayBuffer should have the same length
assert.strictEqual(sb.buffer.byteLength, 4);
// should work without new
sb = SlowBuffer(4);
assert(sb instanceof Buffer);
assert.strictEqual(sb.length, 4);
sb.fill(1);
for (var [key, value] of sb.entries()) {
assert.deepStrictEqual(value, ones[key]);
}
// should work with edge cases
assert.strictEqual(SlowBuffer(0).length, 0);
try {
assert.strictEqual(
SlowBuffer(buffer.kMaxLength).length, buffer.kMaxLength);
} catch (e) {
assert.equal(e.message, 'Array buffer allocation failed');
}
// should work with number-coercible values
assert.strictEqual(SlowBuffer('6').length, 6);
assert.strictEqual(SlowBuffer(true).length, 1);
// should create zero-length buffer if parameter is not a number
assert.strictEqual(SlowBuffer().length, 0);
assert.strictEqual(SlowBuffer(NaN).length, 0);
assert.strictEqual(SlowBuffer({}).length, 0);
assert.strictEqual(SlowBuffer('string').length, 0);
// should throw with invalid length
assert.throws(function() {
SlowBuffer(Infinity);
}, 'invalid Buffer length');
assert.throws(function() {
SlowBuffer(-1);
}, 'invalid Buffer length');
assert.throws(function() {
SlowBuffer(buffer.kMaxLength + 1);
}, 'invalid Buffer length');

141
node_modules/buffer/test/node/test-buffer-swap.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
// Test buffers small enough to use the JS implementation
var buf = Buffer.from([0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09,
0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10]);
assert.strictEqual(buf, buf.swap16());
assert.deepStrictEqual(buf, Buffer.from([0x02, 0x01, 0x04, 0x03, 0x06, 0x05,
0x08, 0x07, 0x0a, 0x09, 0x0c, 0x0b,
0x0e, 0x0d, 0x10, 0x0f]));
buf.swap16(); // restore
assert.strictEqual(buf, buf.swap32());
assert.deepStrictEqual(buf, Buffer.from([0x04, 0x03, 0x02, 0x01, 0x08, 0x07,
0x06, 0x05, 0x0c, 0x0b, 0x0a, 0x09,
0x10, 0x0f, 0x0e, 0x0d]));
buf.swap32(); // restore
assert.strictEqual(buf, buf.swap64());
assert.deepStrictEqual(buf, Buffer.from([0x08, 0x07, 0x06, 0x05, 0x04, 0x03,
0x02, 0x01, 0x10, 0x0f, 0x0e, 0x0d,
0x0c, 0x0b, 0x0a, 0x09]));
// Operates in-place
var buf3 = Buffer.from([0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7]);
buf3.slice(1, 5).swap32();
assert.deepStrictEqual(buf3, Buffer.from([0x1, 0x5, 0x4, 0x3, 0x2, 0x6, 0x7]));
buf3.slice(1, 5).swap16();
assert.deepStrictEqual(buf3, Buffer.from([0x1, 0x4, 0x5, 0x2, 0x3, 0x6, 0x7]));
var buf3_64 = Buffer.from([0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10]);
buf3_64.slice(2, 18).swap64();
assert.deepStrictEqual(buf3_64, Buffer.from([0x01, 0x02, 0x0a, 0x09, 0x08, 0x07,
0x06, 0x05, 0x04, 0x03, 0x02, 0x01,
0x10, 0x0f, 0x0e, 0x0d, 0x0c, 0x0b,
0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e,
0x0f, 0x10]));
// Force use of native code (Buffer size above threshold limit for js impl)
var buf4A = new Uint32Array(256).fill(0x04030201);
var buf4 = Buffer.from(buf4A.buffer, buf4A.byteOffset);
var buf5A = new Uint32Array(256).fill(0x03040102);
var buf5 = Buffer.from(buf5A.buffer, buf5A.byteOffset);
buf4.swap16();
assert.deepStrictEqual(buf4, buf5);
var buf6A = new Uint32Array(256).fill(0x04030201);
var buf6 = Buffer.from(buf6A.buffer);
var bu7A = new Uint32Array(256).fill(0x01020304);
var buf7 = Buffer.from(bu7A.buffer, bu7A.byteOffset);
buf6.swap32();
assert.deepStrictEqual(buf6, buf7);
var buf8A = new Uint8Array(256 * 8);
var buf9A = new Uint8Array(256 * 8);
for (var i = 0; i < buf8A.length; i++) {
buf8A[i] = i % 8;
buf9A[buf9A.length - i - 1] = i % 8;
}
var buf8 = Buffer.from(buf8A.buffer, buf8A.byteOffset);
var buf9 = Buffer.from(buf9A.buffer, buf9A.byteOffset);
buf8.swap64();
assert.deepStrictEqual(buf8, buf9);
// Test native code with buffers that are not memory-aligned
var buf10A = new Uint8Array(256 * 8);
var buf11A = new Uint8Array(256 * 8 - 2);
for (var i = 0; i < buf10A.length; i++) {
buf10A[i] = i % 2;
}
for (var i = 1; i < buf11A.length; i++) {
buf11A[buf11A.length - i] = (i + 1) % 2;
}
var buf10 = Buffer.from(buf10A.buffer, buf10A.byteOffset);
// 0|1 0|1 0|1...
var buf11 = Buffer.from(buf11A.buffer, buf11A.byteOffset);
// 0|0 1|0 1|0...
buf10.slice(1, buf10.length - 1).swap16();
assert.deepStrictEqual(buf10.slice(0, buf11.length), buf11);
var buf12A = new Uint8Array(256 * 8);
var buf13A = new Uint8Array(256 * 8 - 4);
for (var i = 0; i < buf12A.length; i++) {
buf12A[i] = i % 4;
}
for (var i = 1; i < buf13A.length; i++) {
buf13A[buf13A.length - i] = (i + 1) % 4;
}
var buf12 = Buffer.from(buf12A.buffer, buf12A.byteOffset);
// 0|1 2 3 0|1 2 3...
var buf13 = Buffer.from(buf13A.buffer, buf13A.byteOffset);
// 0|0 3 2 1|0 3 2...
buf12.slice(1, buf12.length - 3).swap32();
assert.deepStrictEqual(buf12.slice(0, buf13.length), buf13);
var buf14A = new Uint8Array(256 * 8);
var buf15A = new Uint8Array(256 * 8 - 8);
for (var i = 0; i < buf14A.length; i++) {
buf14A[i] = i % 8;
}
for (var i = 1; i < buf15A.length; i++) {
buf15A[buf15A.length - i] = (i + 1) % 8;
}
var buf14 = Buffer.from(buf14A.buffer, buf14A.byteOffset);
// 0|1 2 3 4 5 6 7 0|1 2 3 4...
var buf15 = Buffer.from(buf15A.buffer, buf15A.byteOffset);
// 0|0 7 6 5 4 3 2 1|0 7 6 5...
buf14.slice(1, buf14.length - 7).swap64();
assert.deepStrictEqual(buf14.slice(0, buf15.length), buf15);
// Length assertions
var re16 = /Buffer size must be a multiple of 16-bits/;
var re32 = /Buffer size must be a multiple of 32-bits/;
var re64 = /Buffer size must be a multiple of 64-bits/;
assert.throws(() => Buffer.from(buf3).swap16(), re16);
assert.throws(() => Buffer.alloc(1025).swap16(), re16);
assert.throws(() => Buffer.from(buf3).swap32(), re32);
assert.throws(() => buf3.slice(1, 3).swap32(), re32);
assert.throws(() => Buffer.alloc(1025).swap32(), re32);
assert.throws(() => buf3.slice(1, 3).swap64(), re64);
assert.throws(() => Buffer.alloc(1025).swap64(), re64);

35
node_modules/buffer/test/node/test-buffer-zero-fill-cli.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
// Flags: --zero-fill-buffers
// when using --zero-fill-buffers, every Buffer and SlowBuffer
// instance must be zero filled upon creation
var SlowBuffer = require('../../').SlowBuffer;
var assert = require('assert');
function isZeroFilled(buf) {
for (var n = 0; n < buf.length; n++)
if (buf[n] > 0) return false;
return true;
}
// This can be somewhat unreliable because the
// allocated memory might just already happen to
// contain all zeroes. The test is run multiple
// times to improve the reliability.
for (var i = 0; i < 50; i++) {
var bufs = [
Buffer.alloc(20),
Buffer.allocUnsafe(20),
SlowBuffer(20),
Buffer(20),
new SlowBuffer(20)
];
for (var buf of bufs) {
assert(isZeroFilled(buf));
}
}

22
node_modules/buffer/test/node/test-buffer-zero-fill-reset.js generated vendored Normal file
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'use strict';
var Buffer = require('../../').Buffer;
var assert = require('assert');
function testUint8Array(ui) {
var length = ui.length;
for (var i = 0; i < length; i++)
if (ui[i] !== 0) return false;
return true;
}
for (var i = 0; i < 100; i++) {
Buffer.alloc(0);
var ui = new Uint8Array(65);
assert.ok(testUint8Array(ui), 'Uint8Array is not zero-filled');
}

1534
node_modules/buffer/test/node/test-buffer.js generated vendored Normal file
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37
node_modules/buffer/test/slice.js generated vendored Normal file
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if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false
var B = require('../').Buffer
var test = require('tape')
test('modifying buffer created by .slice() modifies original memory', function (t) {
if (!B.TYPED_ARRAY_SUPPORT) return t.end()
var buf1 = new B(26)
for (var i = 0; i < 26; i++) {
buf1[i] = i + 97 // 97 is ASCII a
}
var buf2 = buf1.slice(0, 3)
t.equal(buf2.toString('ascii', 0, buf2.length), 'abc')
buf2[0] = '!'.charCodeAt(0)
t.equal(buf1.toString('ascii', 0, buf2.length), '!bc')
t.end()
})
test('modifying parent buffer modifies .slice() buffer\'s memory', function (t) {
if (!B.TYPED_ARRAY_SUPPORT) return t.end()
var buf1 = new B(26)
for (var i = 0; i < 26; i++) {
buf1[i] = i + 97 // 97 is ASCII a
}
var buf2 = buf1.slice(0, 3)
t.equal(buf2.toString('ascii', 0, buf2.length), 'abc')
buf1[0] = '!'.charCodeAt(0)
t.equal(buf2.toString('ascii', 0, buf2.length), '!bc')
t.end()
})

17
node_modules/buffer/test/static.js generated vendored Normal file
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if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false
var B = require('../').Buffer
var test = require('tape')
test('Buffer.isEncoding', function (t) {
t.equal(B.isEncoding('HEX'), true)
t.equal(B.isEncoding('hex'), true)
t.equal(B.isEncoding('bad'), false)
t.end()
})
test('Buffer.isBuffer', function (t) {
t.equal(B.isBuffer(new B('hey', 'utf8')), true)
t.equal(B.isBuffer(new B([1, 2, 3], 'utf8')), true)
t.equal(B.isBuffer('hey'), false)
t.end()
})

233
node_modules/buffer/test/to-string.js generated vendored Normal file
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if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false
var B = require('../').Buffer
var test = require('tape')
test('utf8 buffer to base64', function (t) {
t.equal(
new B('Ձאab', 'utf8').toString('base64'),
'1YHXkGFi'
)
t.end()
})
test('utf8 buffer to hex', function (t) {
t.equal(
new B('Ձאab', 'utf8').toString('hex'),
'd581d7906162'
)
t.end()
})
test('utf8 to utf8', function (t) {
t.equal(
new B('öäüõÖÄÜÕ', 'utf8').toString('utf8'),
'öäüõÖÄÜÕ'
)
t.end()
})
test('utf16le to utf16', function (t) {
t.equal(
new B(new B('abcd', 'utf8').toString('utf16le'), 'utf16le').toString('utf8'),
'abcd'
)
t.end()
})
test('utf16le to hex', function (t) {
t.equal(
new B('abcd', 'utf16le').toString('hex'),
'6100620063006400'
)
t.end()
})
test('ascii buffer to base64', function (t) {
t.equal(
new B('123456!@#$%^', 'ascii').toString('base64'),
'MTIzNDU2IUAjJCVe'
)
t.end()
})
test('ascii buffer to hex', function (t) {
t.equal(
new B('123456!@#$%^', 'ascii').toString('hex'),
'31323334353621402324255e'
)
t.end()
})
test('base64 buffer to utf8', function (t) {
t.equal(
new B('1YHXkGFi', 'base64').toString('utf8'),
'Ձאab'
)
t.end()
})
test('hex buffer to utf8', function (t) {
t.equal(
new B('d581d7906162', 'hex').toString('utf8'),
'Ձאab'
)
t.end()
})
test('base64 buffer to ascii', function (t) {
t.equal(
new B('MTIzNDU2IUAjJCVe', 'base64').toString('ascii'),
'123456!@#$%^'
)
t.end()
})
test('hex buffer to ascii', function (t) {
t.equal(
new B('31323334353621402324255e', 'hex').toString('ascii'),
'123456!@#$%^'
)
t.end()
})
test('base64 buffer to binary', function (t) {
t.equal(
new B('MTIzNDU2IUAjJCVe', 'base64').toString('binary'),
'123456!@#$%^'
)
t.end()
})
test('hex buffer to binary', function (t) {
t.equal(
new B('31323334353621402324255e', 'hex').toString('binary'),
'123456!@#$%^'
)
t.end()
})
test('utf8 to binary', function (t) {
/* jshint -W100 */
t.equal(
new B('öäüõÖÄÜÕ', 'utf8').toString('binary'),
'öäüõÖÄÜÕ'
)
/* jshint +W100 */
t.end()
})
test('utf8 replacement chars (1 byte sequence)', function (t) {
t.equal(
new B([ 0x80 ]).toString(),
'\uFFFD'
)
t.equal(
new B([ 0x7F ]).toString(),
'\u007F'
)
t.end()
})
test('utf8 replacement chars (2 byte sequences)', function (t) {
t.equal(
new B([ 0xC7 ]).toString(),
'\uFFFD'
)
t.equal(
new B([ 0xC7, 0xB1 ]).toString(),
'\u01F1'
)
t.equal(
new B([ 0xC0, 0xB1 ]).toString(),
'\uFFFD\uFFFD'
)
t.equal(
new B([ 0xC1, 0xB1 ]).toString(),
'\uFFFD\uFFFD'
)
t.end()
})
test('utf8 replacement chars (3 byte sequences)', function (t) {
t.equal(
new B([ 0xE0 ]).toString(),
'\uFFFD'
)
t.equal(
new B([ 0xE0, 0xAC ]).toString(),
'\uFFFD\uFFFD'
)
t.equal(
new B([ 0xE0, 0xAC, 0xB9 ]).toString(),
'\u0B39'
)
t.end()
})
test('utf8 replacement chars (4 byte sequences)', function (t) {
t.equal(
new B([ 0xF4 ]).toString(),
'\uFFFD'
)
t.equal(
new B([ 0xF4, 0x8F ]).toString(),
'\uFFFD\uFFFD'
)
t.equal(
new B([ 0xF4, 0x8F, 0x80 ]).toString(),
'\uFFFD\uFFFD\uFFFD'
)
t.equal(
new B([ 0xF4, 0x8F, 0x80, 0x84 ]).toString(),
'\uDBFC\uDC04'
)
t.equal(
new B([ 0xFF ]).toString(),
'\uFFFD'
)
t.equal(
new B([ 0xFF, 0x8F, 0x80, 0x84 ]).toString(),
'\uFFFD\uFFFD\uFFFD\uFFFD'
)
t.end()
})
test('utf8 replacement chars on 256 random bytes', function (t) {
t.equal(
new B([ 152, 130, 206, 23, 243, 238, 197, 44, 27, 86, 208, 36, 163, 184, 164, 21, 94, 242, 178, 46, 25, 26, 253, 178, 72, 147, 207, 112, 236, 68, 179, 190, 29, 83, 239, 147, 125, 55, 143, 19, 157, 68, 157, 58, 212, 224, 150, 39, 128, 24, 94, 225, 120, 121, 75, 192, 112, 19, 184, 142, 203, 36, 43, 85, 26, 147, 227, 139, 242, 186, 57, 78, 11, 102, 136, 117, 180, 210, 241, 92, 3, 215, 54, 167, 249, 1, 44, 225, 146, 86, 2, 42, 68, 21, 47, 238, 204, 153, 216, 252, 183, 66, 222, 255, 15, 202, 16, 51, 134, 1, 17, 19, 209, 76, 238, 38, 76, 19, 7, 103, 249, 5, 107, 137, 64, 62, 170, 57, 16, 85, 179, 193, 97, 86, 166, 196, 36, 148, 138, 193, 210, 69, 187, 38, 242, 97, 195, 219, 252, 244, 38, 1, 197, 18, 31, 246, 53, 47, 134, 52, 105, 72, 43, 239, 128, 203, 73, 93, 199, 75, 222, 220, 166, 34, 63, 236, 11, 212, 76, 243, 171, 110, 78, 39, 205, 204, 6, 177, 233, 212, 243, 0, 33, 41, 122, 118, 92, 252, 0, 157, 108, 120, 70, 137, 100, 223, 243, 171, 232, 66, 126, 111, 142, 33, 3, 39, 117, 27, 107, 54, 1, 217, 227, 132, 13, 166, 3, 73, 53, 127, 225, 236, 134, 219, 98, 214, 125, 148, 24, 64, 142, 111, 231, 194, 42, 150, 185, 10, 182, 163, 244, 19, 4, 59, 135, 16 ]).toString(),
'\uFFFD\uFFFD\uFFFD\u0017\uFFFD\uFFFD\uFFFD\u002C\u001B\u0056\uFFFD\u0024\uFFFD\uFFFD\uFFFD\u0015\u005E\uFFFD\uFFFD\u002E\u0019\u001A\uFFFD\uFFFD\u0048\uFFFD\uFFFD\u0070\uFFFD\u0044\uFFFD\uFFFD\u001D\u0053\uFFFD\uFFFD\u007D\u0037\uFFFD\u0013\uFFFD\u0044\uFFFD\u003A\uFFFD\uFFFD\uFFFD\u0027\uFFFD\u0018\u005E\uFFFD\u0078\u0079\u004B\uFFFD\u0070\u0013\uFFFD\uFFFD\uFFFD\u0024\u002B\u0055\u001A\uFFFD\uFFFD\uFFFD\uFFFD\uFFFD\u0039\u004E\u000B\u0066\uFFFD\u0075\uFFFD\uFFFD\uFFFD\u005C\u0003\uFFFD\u0036\uFFFD\uFFFD\u0001\u002C\uFFFD\uFFFD\u0056\u0002\u002A\u0044\u0015\u002F\uFFFD\u0319\uFFFD\uFFFD\uFFFD\u0042\uFFFD\uFFFD\u000F\uFFFD\u0010\u0033\uFFFD\u0001\u0011\u0013\uFFFD\u004C\uFFFD\u0026\u004C\u0013\u0007\u0067\uFFFD\u0005\u006B\uFFFD\u0040\u003E\uFFFD\u0039\u0010\u0055\uFFFD\uFFFD\u0061\u0056\uFFFD\uFFFD\u0024\uFFFD\uFFFD\uFFFD\uFFFD\u0045\uFFFD\u0026\uFFFD\u0061\uFFFD\uFFFD\uFFFD\uFFFD\u0026\u0001\uFFFD\u0012\u001F\uFFFD\u0035\u002F\uFFFD\u0034\u0069\u0048\u002B\uFFFD\uFFFD\uFFFD\u0049\u005D\uFFFD\u004B\uFFFD\u0726\u0022\u003F\uFFFD\u000B\uFFFD\u004C\uFFFD\uFFFD\u006E\u004E\u0027\uFFFD\uFFFD\u0006\uFFFD\uFFFD\uFFFD\uFFFD\u0000\u0021\u0029\u007A\u0076\u005C\uFFFD\u0000\uFFFD\u006C\u0078\u0046\uFFFD\u0064\uFFFD\uFFFD\uFFFD\uFFFD\u0042\u007E\u006F\uFFFD\u0021\u0003\u0027\u0075\u001B\u006B\u0036\u0001\uFFFD\uFFFD\uFFFD\u000D\uFFFD\u0003\u0049\u0035\u007F\uFFFD\uFFFD\uFFFD\uFFFD\u0062\uFFFD\u007D\uFFFD\u0018\u0040\uFFFD\u006F\uFFFD\uFFFD\u002A\uFFFD\uFFFD\u000A\uFFFD\uFFFD\uFFFD\u0013\u0004\u003B\uFFFD\u0010'
)
t.end()
})
test('utf8 replacement chars for anything in the surrogate pair range', function (t) {
t.equal(
new B([ 0xED, 0x9F, 0xBF ]).toString(),
'\uD7FF'
)
t.equal(
new B([ 0xED, 0xA0, 0x80 ]).toString(),
'\uFFFD\uFFFD\uFFFD'
)
t.equal(
new B([ 0xED, 0xBE, 0x8B ]).toString(),
'\uFFFD\uFFFD\uFFFD'
)
t.equal(
new B([ 0xED, 0xBF, 0xBF ]).toString(),
'\uFFFD\uFFFD\uFFFD'
)
t.equal(
new B([ 0xEE, 0x80, 0x80 ]).toString(),
'\uE000'
)
t.end()
})
test('utf8 don\'t replace the replacement char', function (t) {
t.equal(
new B('\uFFFD').toString(),
'\uFFFD'
)
t.end()
})

131
node_modules/buffer/test/write.js generated vendored Normal file
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if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false
var B = require('../').Buffer
var test = require('tape')
var isnan = require('is-nan')
test('buffer.write string should get parsed as number', function (t) {
var b = new B(64)
b.writeUInt16LE('1003', 0)
t.equal(b.readUInt16LE(0), 1003)
t.end()
})
test('buffer.writeUInt8 a fractional number will get Math.floored', function (t) {
// Some extra work is necessary to make this test pass with the Object implementation
var b = new B(1)
b.writeInt8(5.5, 0)
t.equal(b[0], 5)
t.end()
})
test('writeUint8 with a negative number throws', function (t) {
var buf = new B(1)
t.throws(function () {
buf.writeUInt8(-3, 0)
})
t.end()
})
test('hex of write{Uint,Int}{8,16,32}{LE,BE}', function (t) {
t.plan(2 * (2 * 2 * 2 + 2))
var hex = [
'03', '0300', '0003', '03000000', '00000003',
'fd', 'fdff', 'fffd', 'fdffffff', 'fffffffd'
]
var reads = [ 3, 3, 3, 3, 3, -3, -3, -3, -3, -3 ]
var xs = ['UInt', 'Int']
var ys = [8, 16, 32]
for (var i = 0; i < xs.length; i++) {
var x = xs[i]
for (var j = 0; j < ys.length; j++) {
var y = ys[j]
var endianesses = (y === 8) ? [''] : ['LE', 'BE']
for (var k = 0; k < endianesses.length; k++) {
var z = endianesses[k]
var v1 = new B(y / 8)
var writefn = 'write' + x + y + z
var val = (x === 'Int') ? -3 : 3
v1[writefn](val, 0)
t.equal(
v1.toString('hex'),
hex.shift()
)
var readfn = 'read' + x + y + z
t.equal(
v1[readfn](0),
reads.shift()
)
}
}
}
t.end()
})
test('hex of write{Uint,Int}{8,16,32}{LE,BE} with overflow', function (t) {
if (!B.TYPED_ARRAY_SUPPORT) {
t.pass('object impl: skipping overflow test')
t.end()
return
}
t.plan(3 * (2 * 2 * 2 + 2))
var hex = [
'', '03', '00', '030000', '000000',
'', 'fd', 'ff', 'fdffff', 'ffffff'
]
var reads = [
undefined, 3, 0, NaN, 0,
undefined, 253, -256, 16777213, -256
]
var xs = ['UInt', 'Int']
var ys = [8, 16, 32]
for (var i = 0; i < xs.length; i++) {
var x = xs[i]
for (var j = 0; j < ys.length; j++) {
var y = ys[j]
var endianesses = (y === 8) ? [''] : ['LE', 'BE']
for (var k = 0; k < endianesses.length; k++) {
var z = endianesses[k]
var v1 = new B(y / 8 - 1)
var next = new B(4)
next.writeUInt32BE(0, 0)
var writefn = 'write' + x + y + z
var val = (x === 'Int') ? -3 : 3
v1[writefn](val, 0, true)
t.equal(
v1.toString('hex'),
hex.shift()
)
// check that nothing leaked to next buffer.
t.equal(next.readUInt32BE(0), 0)
// check that no bytes are read from next buffer.
next.writeInt32BE(~0, 0)
var readfn = 'read' + x + y + z
var r = reads.shift()
if (isnan(r)) t.pass('equal')
else t.equal(v1[readfn](0, true), r)
}
}
}
t.end()
})
test('large values do not improperly roll over (ref #80)', function (t) {
var nums = [-25589992, -633756690, -898146932]
var out = new B(12)
out.fill(0)
out.writeInt32BE(nums[0], 0)
var newNum = out.readInt32BE(0)
t.equal(nums[0], newNum)
out.writeInt32BE(nums[1], 4)
newNum = out.readInt32BE(4)
t.equal(nums[1], newNum)
out.writeInt32BE(nums[2], 8)
newNum = out.readInt32BE(8)
t.equal(nums[2], newNum)
t.end()
})

45
node_modules/buffer/test/write_infinity.js generated vendored Normal file
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if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false
var B = require('../').Buffer
var test = require('tape')
test('write/read Infinity as a float', function (t) {
var buf = new B(4)
t.equal(buf.writeFloatBE(Infinity, 0), 4)
t.equal(buf.readFloatBE(0), Infinity)
t.end()
})
test('write/read -Infinity as a float', function (t) {
var buf = new B(4)
t.equal(buf.writeFloatBE(-Infinity, 0), 4)
t.equal(buf.readFloatBE(0), -Infinity)
t.end()
})
test('write/read Infinity as a double', function (t) {
var buf = new B(8)
t.equal(buf.writeDoubleBE(Infinity, 0), 8)
t.equal(buf.readDoubleBE(0), Infinity)
t.end()
})
test('write/read -Infinity as a double', function (t) {
var buf = new B(8)
t.equal(buf.writeDoubleBE(-Infinity, 0), 8)
t.equal(buf.readDoubleBE(0), -Infinity)
t.end()
})
test('write/read float greater than max', function (t) {
var buf = new B(4)
t.equal(buf.writeFloatBE(4e38, 0), 4)
t.equal(buf.readFloatBE(0), Infinity)
t.end()
})
test('write/read float less than min', function (t) {
var buf = new B(4)
t.equal(buf.writeFloatBE(-4e40, 0), 4)
t.equal(buf.readFloatBE(0), -Infinity)
t.end()
})