| 'use strict' |
| |
| const tape = require('tape') |
| const crypto = require('crypto') |
| const fs = require('fs') |
| const path = require('path') |
| const BufferList = require('../') |
| const { Buffer } = require('buffer') |
| |
| const encodings = |
| ('hex utf8 utf-8 ascii binary base64' + |
| (process.browser ? '' : ' ucs2 ucs-2 utf16le utf-16le')).split(' ') |
| |
| require('./indexOf') |
| require('./isBufferList') |
| require('./convert') |
| |
| tape('single bytes from single buffer', function (t) { |
| const bl = new BufferList() |
| |
| bl.append(Buffer.from('abcd')) |
| |
| t.equal(bl.length, 4) |
| t.equal(bl.get(-1), undefined) |
| t.equal(bl.get(0), 97) |
| t.equal(bl.get(1), 98) |
| t.equal(bl.get(2), 99) |
| t.equal(bl.get(3), 100) |
| t.equal(bl.get(4), undefined) |
| |
| t.end() |
| }) |
| |
| tape('single bytes from multiple buffers', function (t) { |
| const bl = new BufferList() |
| |
| bl.append(Buffer.from('abcd')) |
| bl.append(Buffer.from('efg')) |
| bl.append(Buffer.from('hi')) |
| bl.append(Buffer.from('j')) |
| |
| t.equal(bl.length, 10) |
| |
| t.equal(bl.get(0), 97) |
| t.equal(bl.get(1), 98) |
| t.equal(bl.get(2), 99) |
| t.equal(bl.get(3), 100) |
| t.equal(bl.get(4), 101) |
| t.equal(bl.get(5), 102) |
| t.equal(bl.get(6), 103) |
| t.equal(bl.get(7), 104) |
| t.equal(bl.get(8), 105) |
| t.equal(bl.get(9), 106) |
| |
| t.end() |
| }) |
| |
| tape('multi bytes from single buffer', function (t) { |
| const bl = new BufferList() |
| |
| bl.append(Buffer.from('abcd')) |
| |
| t.equal(bl.length, 4) |
| |
| t.equal(bl.slice(0, 4).toString('ascii'), 'abcd') |
| t.equal(bl.slice(0, 3).toString('ascii'), 'abc') |
| t.equal(bl.slice(1, 4).toString('ascii'), 'bcd') |
| t.equal(bl.slice(-4, -1).toString('ascii'), 'abc') |
| |
| t.end() |
| }) |
| |
| tape('multi bytes from single buffer (negative indexes)', function (t) { |
| const bl = new BufferList() |
| |
| bl.append(Buffer.from('buffer')) |
| |
| t.equal(bl.length, 6) |
| |
| t.equal(bl.slice(-6, -1).toString('ascii'), 'buffe') |
| t.equal(bl.slice(-6, -2).toString('ascii'), 'buff') |
| t.equal(bl.slice(-5, -2).toString('ascii'), 'uff') |
| |
| t.end() |
| }) |
| |
| tape('multiple bytes from multiple buffers', function (t) { |
| const bl = new BufferList() |
| |
| bl.append(Buffer.from('abcd')) |
| bl.append(Buffer.from('efg')) |
| bl.append(Buffer.from('hi')) |
| bl.append(Buffer.from('j')) |
| |
| t.equal(bl.length, 10) |
| |
| t.equal(bl.slice(0, 10).toString('ascii'), 'abcdefghij') |
| t.equal(bl.slice(3, 10).toString('ascii'), 'defghij') |
| t.equal(bl.slice(3, 6).toString('ascii'), 'def') |
| t.equal(bl.slice(3, 8).toString('ascii'), 'defgh') |
| t.equal(bl.slice(5, 10).toString('ascii'), 'fghij') |
| t.equal(bl.slice(-7, -4).toString('ascii'), 'def') |
| |
| t.end() |
| }) |
| |
| tape('multiple bytes from multiple buffer lists', function (t) { |
| const bl = new BufferList() |
| |
| bl.append(new BufferList([Buffer.from('abcd'), Buffer.from('efg')])) |
| bl.append(new BufferList([Buffer.from('hi'), Buffer.from('j')])) |
| |
| t.equal(bl.length, 10) |
| |
| t.equal(bl.slice(0, 10).toString('ascii'), 'abcdefghij') |
| |
| t.equal(bl.slice(3, 10).toString('ascii'), 'defghij') |
| t.equal(bl.slice(3, 6).toString('ascii'), 'def') |
| t.equal(bl.slice(3, 8).toString('ascii'), 'defgh') |
| t.equal(bl.slice(5, 10).toString('ascii'), 'fghij') |
| |
| t.end() |
| }) |
| |
| // same data as previous test, just using nested constructors |
| tape('multiple bytes from crazy nested buffer lists', function (t) { |
| const bl = new BufferList() |
| |
| bl.append(new BufferList([ |
| new BufferList([ |
| new BufferList(Buffer.from('abc')), |
| Buffer.from('d'), |
| new BufferList(Buffer.from('efg')) |
| ]), |
| new BufferList([Buffer.from('hi')]), |
| new BufferList(Buffer.from('j')) |
| ])) |
| |
| t.equal(bl.length, 10) |
| |
| t.equal(bl.slice(0, 10).toString('ascii'), 'abcdefghij') |
| |
| t.equal(bl.slice(3, 10).toString('ascii'), 'defghij') |
| t.equal(bl.slice(3, 6).toString('ascii'), 'def') |
| t.equal(bl.slice(3, 8).toString('ascii'), 'defgh') |
| t.equal(bl.slice(5, 10).toString('ascii'), 'fghij') |
| |
| t.end() |
| }) |
| |
| tape('append accepts arrays of Buffers', function (t) { |
| const bl = new BufferList() |
| |
| bl.append(Buffer.from('abc')) |
| bl.append([Buffer.from('def')]) |
| bl.append([Buffer.from('ghi'), Buffer.from('jkl')]) |
| bl.append([Buffer.from('mnop'), Buffer.from('qrstu'), Buffer.from('vwxyz')]) |
| t.equal(bl.length, 26) |
| t.equal(bl.slice().toString('ascii'), 'abcdefghijklmnopqrstuvwxyz') |
| |
| t.end() |
| }) |
| |
| tape('append accepts arrays of Uint8Arrays', function (t) { |
| const bl = new BufferList() |
| |
| bl.append(new Uint8Array([97, 98, 99])) |
| bl.append([Uint8Array.from([100, 101, 102])]) |
| bl.append([new Uint8Array([103, 104, 105]), new Uint8Array([106, 107, 108])]) |
| bl.append([new Uint8Array([109, 110, 111, 112]), new Uint8Array([113, 114, 115, 116, 117]), new Uint8Array([118, 119, 120, 121, 122])]) |
| t.equal(bl.length, 26) |
| t.equal(bl.slice().toString('ascii'), 'abcdefghijklmnopqrstuvwxyz') |
| |
| t.end() |
| }) |
| |
| tape('append accepts arrays of BufferLists', function (t) { |
| const bl = new BufferList() |
| |
| bl.append(Buffer.from('abc')) |
| bl.append([new BufferList('def')]) |
| bl.append(new BufferList([Buffer.from('ghi'), new BufferList('jkl')])) |
| bl.append([Buffer.from('mnop'), new BufferList([Buffer.from('qrstu'), Buffer.from('vwxyz')])]) |
| t.equal(bl.length, 26) |
| t.equal(bl.slice().toString('ascii'), 'abcdefghijklmnopqrstuvwxyz') |
| |
| t.end() |
| }) |
| |
| tape('append chainable', function (t) { |
| const bl = new BufferList() |
| |
| t.ok(bl.append(Buffer.from('abcd')) === bl) |
| t.ok(bl.append([Buffer.from('abcd')]) === bl) |
| t.ok(bl.append(new BufferList(Buffer.from('abcd'))) === bl) |
| t.ok(bl.append([new BufferList(Buffer.from('abcd'))]) === bl) |
| |
| t.end() |
| }) |
| |
| tape('append chainable (test results)', function (t) { |
| const bl = new BufferList('abc') |
| .append([new BufferList('def')]) |
| .append(new BufferList([Buffer.from('ghi'), new BufferList('jkl')])) |
| .append([Buffer.from('mnop'), new BufferList([Buffer.from('qrstu'), Buffer.from('vwxyz')])]) |
| |
| t.equal(bl.length, 26) |
| t.equal(bl.slice().toString('ascii'), 'abcdefghijklmnopqrstuvwxyz') |
| |
| t.end() |
| }) |
| |
| tape('consuming from multiple buffers', function (t) { |
| const bl = new BufferList() |
| |
| bl.append(Buffer.from('abcd')) |
| bl.append(Buffer.from('efg')) |
| bl.append(Buffer.from('hi')) |
| bl.append(Buffer.from('j')) |
| |
| t.equal(bl.length, 10) |
| |
| t.equal(bl.slice(0, 10).toString('ascii'), 'abcdefghij') |
| |
| bl.consume(3) |
| t.equal(bl.length, 7) |
| t.equal(bl.slice(0, 7).toString('ascii'), 'defghij') |
| |
| bl.consume(2) |
| t.equal(bl.length, 5) |
| t.equal(bl.slice(0, 5).toString('ascii'), 'fghij') |
| |
| bl.consume(1) |
| t.equal(bl.length, 4) |
| t.equal(bl.slice(0, 4).toString('ascii'), 'ghij') |
| |
| bl.consume(1) |
| t.equal(bl.length, 3) |
| t.equal(bl.slice(0, 3).toString('ascii'), 'hij') |
| |
| bl.consume(2) |
| t.equal(bl.length, 1) |
| t.equal(bl.slice(0, 1).toString('ascii'), 'j') |
| |
| t.end() |
| }) |
| |
| tape('complete consumption', function (t) { |
| const bl = new BufferList() |
| |
| bl.append(Buffer.from('a')) |
| bl.append(Buffer.from('b')) |
| |
| bl.consume(2) |
| |
| t.equal(bl.length, 0) |
| t.equal(bl._bufs.length, 0) |
| |
| t.end() |
| }) |
| |
| tape('test readUInt8 / readInt8', function (t) { |
| const buf1 = Buffer.alloc(1) |
| const buf2 = Buffer.alloc(3) |
| const buf3 = Buffer.alloc(3) |
| const bl = new BufferList() |
| |
| buf1[0] = 0x1 |
| buf2[1] = 0x3 |
| buf2[2] = 0x4 |
| buf3[0] = 0x23 |
| buf3[1] = 0x42 |
| |
| bl.append(buf1) |
| bl.append(buf2) |
| bl.append(buf3) |
| |
| t.equal(bl.readUInt8(), 0x1) |
| t.equal(bl.readUInt8(2), 0x3) |
| t.equal(bl.readInt8(2), 0x3) |
| t.equal(bl.readUInt8(3), 0x4) |
| t.equal(bl.readInt8(3), 0x4) |
| t.equal(bl.readUInt8(4), 0x23) |
| t.equal(bl.readInt8(4), 0x23) |
| t.equal(bl.readUInt8(5), 0x42) |
| t.equal(bl.readInt8(5), 0x42) |
| |
| t.end() |
| }) |
| |
| tape('test readUInt16LE / readUInt16BE / readInt16LE / readInt16BE', function (t) { |
| const buf1 = Buffer.alloc(1) |
| const buf2 = Buffer.alloc(3) |
| const buf3 = Buffer.alloc(3) |
| const bl = new BufferList() |
| |
| buf1[0] = 0x1 |
| buf2[1] = 0x3 |
| buf2[2] = 0x4 |
| buf3[0] = 0x23 |
| buf3[1] = 0x42 |
| |
| bl.append(buf1) |
| bl.append(buf2) |
| bl.append(buf3) |
| |
| t.equal(bl.readUInt16BE(), 0x0100) |
| t.equal(bl.readUInt16LE(), 0x0001) |
| t.equal(bl.readUInt16BE(2), 0x0304) |
| t.equal(bl.readUInt16LE(2), 0x0403) |
| t.equal(bl.readInt16BE(2), 0x0304) |
| t.equal(bl.readInt16LE(2), 0x0403) |
| t.equal(bl.readUInt16BE(3), 0x0423) |
| t.equal(bl.readUInt16LE(3), 0x2304) |
| t.equal(bl.readInt16BE(3), 0x0423) |
| t.equal(bl.readInt16LE(3), 0x2304) |
| t.equal(bl.readUInt16BE(4), 0x2342) |
| t.equal(bl.readUInt16LE(4), 0x4223) |
| t.equal(bl.readInt16BE(4), 0x2342) |
| t.equal(bl.readInt16LE(4), 0x4223) |
| |
| t.end() |
| }) |
| |
| tape('test readUInt32LE / readUInt32BE / readInt32LE / readInt32BE', function (t) { |
| const buf1 = Buffer.alloc(1) |
| const buf2 = Buffer.alloc(3) |
| const buf3 = Buffer.alloc(3) |
| const bl = new BufferList() |
| |
| buf1[0] = 0x1 |
| buf2[1] = 0x3 |
| buf2[2] = 0x4 |
| buf3[0] = 0x23 |
| buf3[1] = 0x42 |
| |
| bl.append(buf1) |
| bl.append(buf2) |
| bl.append(buf3) |
| |
| t.equal(bl.readUInt32BE(), 0x01000304) |
| t.equal(bl.readUInt32LE(), 0x04030001) |
| t.equal(bl.readUInt32BE(2), 0x03042342) |
| t.equal(bl.readUInt32LE(2), 0x42230403) |
| t.equal(bl.readInt32BE(2), 0x03042342) |
| t.equal(bl.readInt32LE(2), 0x42230403) |
| |
| t.end() |
| }) |
| |
| tape('test readUIntLE / readUIntBE / readIntLE / readIntBE', function (t) { |
| const buf1 = Buffer.alloc(1) |
| const buf2 = Buffer.alloc(3) |
| const buf3 = Buffer.alloc(3) |
| const bl = new BufferList() |
| |
| buf2[0] = 0x2 |
| buf2[1] = 0x3 |
| buf2[2] = 0x4 |
| buf3[0] = 0x23 |
| buf3[1] = 0x42 |
| buf3[2] = 0x61 |
| |
| bl.append(buf1) |
| bl.append(buf2) |
| bl.append(buf3) |
| |
| t.equal(bl.readUIntBE(1, 1), 0x02) |
| t.equal(bl.readUIntBE(1, 2), 0x0203) |
| t.equal(bl.readUIntBE(1, 3), 0x020304) |
| t.equal(bl.readUIntBE(1, 4), 0x02030423) |
| t.equal(bl.readUIntBE(1, 5), 0x0203042342) |
| t.equal(bl.readUIntBE(1, 6), 0x020304234261) |
| t.equal(bl.readUIntLE(1, 1), 0x02) |
| t.equal(bl.readUIntLE(1, 2), 0x0302) |
| t.equal(bl.readUIntLE(1, 3), 0x040302) |
| t.equal(bl.readUIntLE(1, 4), 0x23040302) |
| t.equal(bl.readUIntLE(1, 5), 0x4223040302) |
| t.equal(bl.readUIntLE(1, 6), 0x614223040302) |
| t.equal(bl.readIntBE(1, 1), 0x02) |
| t.equal(bl.readIntBE(1, 2), 0x0203) |
| t.equal(bl.readIntBE(1, 3), 0x020304) |
| t.equal(bl.readIntBE(1, 4), 0x02030423) |
| t.equal(bl.readIntBE(1, 5), 0x0203042342) |
| t.equal(bl.readIntBE(1, 6), 0x020304234261) |
| t.equal(bl.readIntLE(1, 1), 0x02) |
| t.equal(bl.readIntLE(1, 2), 0x0302) |
| t.equal(bl.readIntLE(1, 3), 0x040302) |
| t.equal(bl.readIntLE(1, 4), 0x23040302) |
| t.equal(bl.readIntLE(1, 5), 0x4223040302) |
| t.equal(bl.readIntLE(1, 6), 0x614223040302) |
| |
| t.end() |
| }) |
| |
| tape('test readFloatLE / readFloatBE', function (t) { |
| const buf1 = Buffer.alloc(1) |
| const buf2 = Buffer.alloc(3) |
| const buf3 = Buffer.alloc(3) |
| const bl = new BufferList() |
| |
| buf1[0] = 0x01 |
| buf2[1] = 0x00 |
| buf2[2] = 0x00 |
| buf3[0] = 0x80 |
| buf3[1] = 0x3f |
| |
| bl.append(buf1) |
| bl.append(buf2) |
| bl.append(buf3) |
| |
| const canonical = Buffer.concat([buf1, buf2, buf3]) |
| t.equal(bl.readFloatLE(), canonical.readFloatLE()) |
| t.equal(bl.readFloatBE(), canonical.readFloatBE()) |
| t.equal(bl.readFloatLE(2), canonical.readFloatLE(2)) |
| t.equal(bl.readFloatBE(2), canonical.readFloatBE(2)) |
| |
| t.end() |
| }) |
| |
| tape('test readDoubleLE / readDoubleBE', function (t) { |
| const buf1 = Buffer.alloc(1) |
| const buf2 = Buffer.alloc(3) |
| const buf3 = Buffer.alloc(10) |
| const bl = new BufferList() |
| |
| buf1[0] = 0x01 |
| buf2[1] = 0x55 |
| buf2[2] = 0x55 |
| buf3[0] = 0x55 |
| buf3[1] = 0x55 |
| buf3[2] = 0x55 |
| buf3[3] = 0x55 |
| buf3[4] = 0xd5 |
| buf3[5] = 0x3f |
| |
| bl.append(buf1) |
| bl.append(buf2) |
| bl.append(buf3) |
| |
| const canonical = Buffer.concat([buf1, buf2, buf3]) |
| t.equal(bl.readDoubleBE(), canonical.readDoubleBE()) |
| t.equal(bl.readDoubleLE(), canonical.readDoubleLE()) |
| t.equal(bl.readDoubleBE(2), canonical.readDoubleBE(2)) |
| t.equal(bl.readDoubleLE(2), canonical.readDoubleLE(2)) |
| |
| t.end() |
| }) |
| |
| tape('test toString', function (t) { |
| const bl = new BufferList() |
| |
| bl.append(Buffer.from('abcd')) |
| bl.append(Buffer.from('efg')) |
| bl.append(Buffer.from('hi')) |
| bl.append(Buffer.from('j')) |
| |
| t.equal(bl.toString('ascii', 0, 10), 'abcdefghij') |
| t.equal(bl.toString('ascii', 3, 10), 'defghij') |
| t.equal(bl.toString('ascii', 3, 6), 'def') |
| t.equal(bl.toString('ascii', 3, 8), 'defgh') |
| t.equal(bl.toString('ascii', 5, 10), 'fghij') |
| |
| t.end() |
| }) |
| |
| tape('test toString encoding', function (t) { |
| const bl = new BufferList() |
| const b = Buffer.from('abcdefghij\xff\x00') |
| |
| bl.append(Buffer.from('abcd')) |
| bl.append(Buffer.from('efg')) |
| bl.append(Buffer.from('hi')) |
| bl.append(Buffer.from('j')) |
| bl.append(Buffer.from('\xff\x00')) |
| |
| encodings.forEach(function (enc) { |
| t.equal(bl.toString(enc), b.toString(enc), enc) |
| }) |
| |
| t.end() |
| }) |
| |
| tape('uninitialized memory', function (t) { |
| const secret = crypto.randomBytes(256) |
| for (let i = 0; i < 1e6; i++) { |
| const clone = Buffer.from(secret) |
| const bl = new BufferList() |
| bl.append(Buffer.from('a')) |
| bl.consume(-1024) |
| const buf = bl.slice(1) |
| if (buf.indexOf(clone) !== -1) { |
| t.fail(`Match (at ${i})`) |
| break |
| } |
| } |
| t.end() |
| }) |
| |
| !process.browser && tape('test stream', function (t) { |
| const random = crypto.randomBytes(65534) |
| |
| const bl = new BufferList((err, buf) => { |
| t.ok(Buffer.isBuffer(buf)) |
| t.ok(err === null) |
| t.ok(random.equals(bl.slice())) |
| t.ok(random.equals(buf.slice())) |
| |
| bl.pipe(fs.createWriteStream('/tmp/bl_test_rnd_out.dat')) |
| .on('close', function () { |
| const rndhash = crypto.createHash('md5').update(random).digest('hex') |
| const md5sum = crypto.createHash('md5') |
| const s = fs.createReadStream('/tmp/bl_test_rnd_out.dat') |
| |
| s.on('data', md5sum.update.bind(md5sum)) |
| s.on('end', function () { |
| t.equal(rndhash, md5sum.digest('hex'), 'woohoo! correct hash!') |
| t.end() |
| }) |
| }) |
| }) |
| |
| fs.writeFileSync('/tmp/bl_test_rnd.dat', random) |
| fs.createReadStream('/tmp/bl_test_rnd.dat').pipe(bl) |
| }) |
| |
| tape('instantiation with Buffer', function (t) { |
| const buf = crypto.randomBytes(1024) |
| const buf2 = crypto.randomBytes(1024) |
| let b = BufferList(buf) |
| |
| t.equal(buf.toString('hex'), b.slice().toString('hex'), 'same buffer') |
| b = BufferList([buf, buf2]) |
| t.equal(b.slice().toString('hex'), Buffer.concat([buf, buf2]).toString('hex'), 'same buffer') |
| |
| t.end() |
| }) |
| |
| tape('test String appendage', function (t) { |
| const bl = new BufferList() |
| const b = Buffer.from('abcdefghij\xff\x00') |
| |
| bl.append('abcd') |
| bl.append('efg') |
| bl.append('hi') |
| bl.append('j') |
| bl.append('\xff\x00') |
| |
| encodings.forEach(function (enc) { |
| t.equal(bl.toString(enc), b.toString(enc)) |
| }) |
| |
| t.end() |
| }) |
| |
| tape('test Number appendage', function (t) { |
| const bl = new BufferList() |
| const b = Buffer.from('1234567890') |
| |
| bl.append(1234) |
| bl.append(567) |
| bl.append(89) |
| bl.append(0) |
| |
| encodings.forEach(function (enc) { |
| t.equal(bl.toString(enc), b.toString(enc)) |
| }) |
| |
| t.end() |
| }) |
| |
| tape('write nothing, should get empty buffer', function (t) { |
| t.plan(3) |
| BufferList(function (err, data) { |
| t.notOk(err, 'no error') |
| t.ok(Buffer.isBuffer(data), 'got a buffer') |
| t.equal(0, data.length, 'got a zero-length buffer') |
| t.end() |
| }).end() |
| }) |
| |
| tape('unicode string', function (t) { |
| t.plan(2) |
| |
| const inp1 = '\u2600' |
| const inp2 = '\u2603' |
| const exp = inp1 + ' and ' + inp2 |
| const bl = BufferList() |
| |
| bl.write(inp1) |
| bl.write(' and ') |
| bl.write(inp2) |
| t.equal(exp, bl.toString()) |
| t.equal(Buffer.from(exp).toString('hex'), bl.toString('hex')) |
| }) |
| |
| tape('should emit finish', function (t) { |
| const source = BufferList() |
| const dest = BufferList() |
| |
| source.write('hello') |
| source.pipe(dest) |
| |
| dest.on('finish', function () { |
| t.equal(dest.toString('utf8'), 'hello') |
| t.end() |
| }) |
| }) |
| |
| tape('basic copy', function (t) { |
| const buf = crypto.randomBytes(1024) |
| const buf2 = Buffer.alloc(1024) |
| const b = BufferList(buf) |
| |
| b.copy(buf2) |
| t.equal(b.slice().toString('hex'), buf2.toString('hex'), 'same buffer') |
| |
| t.end() |
| }) |
| |
| tape('copy after many appends', function (t) { |
| const buf = crypto.randomBytes(512) |
| const buf2 = Buffer.alloc(1024) |
| const b = BufferList(buf) |
| |
| b.append(buf) |
| b.copy(buf2) |
| t.equal(b.slice().toString('hex'), buf2.toString('hex'), 'same buffer') |
| |
| t.end() |
| }) |
| |
| tape('copy at a precise position', function (t) { |
| const buf = crypto.randomBytes(1004) |
| const buf2 = Buffer.alloc(1024) |
| const b = BufferList(buf) |
| |
| b.copy(buf2, 20) |
| t.equal(b.slice().toString('hex'), buf2.slice(20).toString('hex'), 'same buffer') |
| |
| t.end() |
| }) |
| |
| tape('copy starting from a precise location', function (t) { |
| const buf = crypto.randomBytes(10) |
| const buf2 = Buffer.alloc(5) |
| const b = BufferList(buf) |
| |
| b.copy(buf2, 0, 5) |
| t.equal(b.slice(5).toString('hex'), buf2.toString('hex'), 'same buffer') |
| |
| t.end() |
| }) |
| |
| tape('copy in an interval', function (t) { |
| const rnd = crypto.randomBytes(10) |
| const b = BufferList(rnd) // put the random bytes there |
| const actual = Buffer.alloc(3) |
| const expected = Buffer.alloc(3) |
| |
| rnd.copy(expected, 0, 5, 8) |
| b.copy(actual, 0, 5, 8) |
| |
| t.equal(actual.toString('hex'), expected.toString('hex'), 'same buffer') |
| |
| t.end() |
| }) |
| |
| tape('copy an interval between two buffers', function (t) { |
| const buf = crypto.randomBytes(10) |
| const buf2 = Buffer.alloc(10) |
| const b = BufferList(buf) |
| |
| b.append(buf) |
| b.copy(buf2, 0, 5, 15) |
| |
| t.equal(b.slice(5, 15).toString('hex'), buf2.toString('hex'), 'same buffer') |
| |
| t.end() |
| }) |
| |
| tape('shallow slice across buffer boundaries', function (t) { |
| const bl = new BufferList(['First', 'Second', 'Third']) |
| |
| t.equal(bl.shallowSlice(3, 13).toString(), 'stSecondTh') |
| |
| t.end() |
| }) |
| |
| tape('shallow slice within single buffer', function (t) { |
| t.plan(2) |
| |
| const bl = new BufferList(['First', 'Second', 'Third']) |
| |
| t.equal(bl.shallowSlice(5, 10).toString(), 'Secon') |
| t.equal(bl.shallowSlice(7, 10).toString(), 'con') |
| |
| t.end() |
| }) |
| |
| tape('shallow slice single buffer', function (t) { |
| t.plan(3) |
| |
| const bl = new BufferList(['First', 'Second', 'Third']) |
| |
| t.equal(bl.shallowSlice(0, 5).toString(), 'First') |
| t.equal(bl.shallowSlice(5, 11).toString(), 'Second') |
| t.equal(bl.shallowSlice(11, 16).toString(), 'Third') |
| }) |
| |
| tape('shallow slice with negative or omitted indices', function (t) { |
| t.plan(4) |
| |
| const bl = new BufferList(['First', 'Second', 'Third']) |
| |
| t.equal(bl.shallowSlice().toString(), 'FirstSecondThird') |
| t.equal(bl.shallowSlice(5).toString(), 'SecondThird') |
| t.equal(bl.shallowSlice(5, -3).toString(), 'SecondTh') |
| t.equal(bl.shallowSlice(-8).toString(), 'ondThird') |
| }) |
| |
| tape('shallow slice does not make a copy', function (t) { |
| t.plan(1) |
| |
| const buffers = [Buffer.from('First'), Buffer.from('Second'), Buffer.from('Third')] |
| const bl = (new BufferList(buffers)).shallowSlice(5, -3) |
| |
| buffers[1].fill('h') |
| buffers[2].fill('h') |
| |
| t.equal(bl.toString(), 'hhhhhhhh') |
| }) |
| |
| tape('shallow slice with 0 length', function (t) { |
| t.plan(1) |
| |
| const buffers = [Buffer.from('First'), Buffer.from('Second'), Buffer.from('Third')] |
| const bl = (new BufferList(buffers)).shallowSlice(0, 0) |
| |
| t.equal(bl.length, 0) |
| }) |
| |
| tape('shallow slice with 0 length from middle', function (t) { |
| t.plan(1) |
| |
| const buffers = [Buffer.from('First'), Buffer.from('Second'), Buffer.from('Third')] |
| const bl = (new BufferList(buffers)).shallowSlice(10, 10) |
| |
| t.equal(bl.length, 0) |
| }) |
| |
| tape('duplicate', function (t) { |
| t.plan(2) |
| |
| const bl = new BufferList('abcdefghij\xff\x00') |
| const dup = bl.duplicate() |
| |
| t.equal(bl.prototype, dup.prototype) |
| t.equal(bl.toString('hex'), dup.toString('hex')) |
| }) |
| |
| tape('destroy no pipe', function (t) { |
| t.plan(2) |
| |
| const bl = new BufferList('alsdkfja;lsdkfja;lsdk') |
| |
| bl.destroy() |
| |
| t.equal(bl._bufs.length, 0) |
| t.equal(bl.length, 0) |
| }) |
| |
| tape('destroy with error', function (t) { |
| t.plan(3) |
| |
| const bl = new BufferList('alsdkfja;lsdkfja;lsdk') |
| const err = new Error('kaboom') |
| |
| bl.destroy(err) |
| bl.on('error', function (_err) { |
| t.equal(_err, err) |
| }) |
| |
| t.equal(bl._bufs.length, 0) |
| t.equal(bl.length, 0) |
| }) |
| |
| !process.browser && tape('destroy with pipe before read end', function (t) { |
| t.plan(2) |
| |
| const bl = new BufferList() |
| fs.createReadStream(path.join(__dirname, '/test.js')) |
| .pipe(bl) |
| |
| bl.destroy() |
| |
| t.equal(bl._bufs.length, 0) |
| t.equal(bl.length, 0) |
| }) |
| |
| !process.browser && tape('destroy with pipe before read end with race', function (t) { |
| t.plan(2) |
| |
| const bl = new BufferList() |
| |
| fs.createReadStream(path.join(__dirname, '/test.js')) |
| .pipe(bl) |
| |
| setTimeout(function () { |
| bl.destroy() |
| setTimeout(function () { |
| t.equal(bl._bufs.length, 0) |
| t.equal(bl.length, 0) |
| }, 500) |
| }, 500) |
| }) |
| |
| !process.browser && tape('destroy with pipe after read end', function (t) { |
| t.plan(2) |
| |
| const bl = new BufferList() |
| |
| fs.createReadStream(path.join(__dirname, '/test.js')) |
| .on('end', onEnd) |
| .pipe(bl) |
| |
| function onEnd () { |
| bl.destroy() |
| |
| t.equal(bl._bufs.length, 0) |
| t.equal(bl.length, 0) |
| } |
| }) |
| |
| !process.browser && tape('destroy with pipe while writing to a destination', function (t) { |
| t.plan(4) |
| |
| const bl = new BufferList() |
| const ds = new BufferList() |
| |
| fs.createReadStream(path.join(__dirname, '/test.js')) |
| .on('end', onEnd) |
| .pipe(bl) |
| |
| function onEnd () { |
| bl.pipe(ds) |
| |
| setTimeout(function () { |
| bl.destroy() |
| |
| t.equals(bl._bufs.length, 0) |
| t.equals(bl.length, 0) |
| |
| ds.destroy() |
| |
| t.equals(bl._bufs.length, 0) |
| t.equals(bl.length, 0) |
| }, 100) |
| } |
| }) |
| |
| !process.browser && tape('handle error', function (t) { |
| t.plan(2) |
| |
| fs.createReadStream('/does/not/exist').pipe(BufferList(function (err, data) { |
| t.ok(err instanceof Error, 'has error') |
| t.notOk(data, 'no data') |
| })) |
| }) |
