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-rw-r--r--node_modules/bl/test/indexOf.js463
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diff --git a/node_modules/bl/test/indexOf.js b/node_modules/bl/test/indexOf.js
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-'use strict'
-
-var tape = require('tape')
- , BufferList = require('../')
- , Buffer = require('safe-buffer').Buffer
-
-tape('indexOf single byte needle', t => {
- const bl = new BufferList(['abcdefg', 'abcdefg', '12345'])
- t.equal(bl.indexOf('e'), 4)
- t.equal(bl.indexOf('e', 5), 11)
- t.equal(bl.indexOf('e', 12), -1)
- t.equal(bl.indexOf('5'), 18)
- t.end()
-})
-
-tape('indexOf multiple byte needle', t => {
- const bl = new BufferList(['abcdefg', 'abcdefg'])
- t.equal(bl.indexOf('ef'), 4)
- t.equal(bl.indexOf('ef', 5), 11)
- t.end()
-})
-
-tape('indexOf multiple byte needles across buffer boundaries', t => {
- const bl = new BufferList(['abcdefg', 'abcdefg'])
- t.equal(bl.indexOf('fgabc'), 5)
- t.end()
-})
-
-tape('indexOf takes a buffer list search', t => {
- const bl = new BufferList(['abcdefg', 'abcdefg'])
- const search = new BufferList('fgabc')
- t.equal(bl.indexOf(search), 5)
- t.end()
-})
-
-tape('indexOf a zero byte needle', t => {
- const b = new BufferList('abcdef')
- const buf_empty = Buffer.from('')
- t.equal(b.indexOf(''), 0)
- t.equal(b.indexOf('', 1), 1)
- t.equal(b.indexOf('', b.length + 1), b.length)
- t.equal(b.indexOf('', Infinity), b.length)
- t.equal(b.indexOf(buf_empty), 0)
- t.equal(b.indexOf(buf_empty, 1), 1)
- t.equal(b.indexOf(buf_empty, b.length + 1), b.length)
- t.equal(b.indexOf(buf_empty, Infinity), b.length)
- t.end()
-})
-
-tape('indexOf buffers smaller and larger than the needle', t => {
- const bl = new BufferList(['abcdefg', 'a', 'bcdefg', 'a', 'bcfgab'])
- t.equal(bl.indexOf('fgabc'), 5)
- t.equal(bl.indexOf('fgabc', 6), 12)
- t.equal(bl.indexOf('fgabc', 13), -1)
- t.end()
-})
-
-// only present in node 6+
-;(process.version.substr(1).split('.')[0] >= 6) && tape('indexOf latin1 and binary encoding', t => {
- const b = new BufferList('abcdef')
-
- // test latin1 encoding
- t.equal(
- new BufferList(Buffer.from(b.toString('latin1'), 'latin1'))
- .indexOf('d', 0, 'latin1'),
- 3
- )
- t.equal(
- new BufferList(Buffer.from(b.toString('latin1'), 'latin1'))
- .indexOf(Buffer.from('d', 'latin1'), 0, 'latin1'),
- 3
- )
- t.equal(
- new BufferList(Buffer.from('aa\u00e8aa', 'latin1'))
- .indexOf('\u00e8', 'latin1'),
- 2
- )
- t.equal(
- new BufferList(Buffer.from('\u00e8', 'latin1'))
- .indexOf('\u00e8', 'latin1'),
- 0
- )
- t.equal(
- new BufferList(Buffer.from('\u00e8', 'latin1'))
- .indexOf(Buffer.from('\u00e8', 'latin1'), 'latin1'),
- 0
- )
-
- // test binary encoding
- t.equal(
- new BufferList(Buffer.from(b.toString('binary'), 'binary'))
- .indexOf('d', 0, 'binary'),
- 3
- )
- t.equal(
- new BufferList(Buffer.from(b.toString('binary'), 'binary'))
- .indexOf(Buffer.from('d', 'binary'), 0, 'binary'),
- 3
- )
- t.equal(
- new BufferList(Buffer.from('aa\u00e8aa', 'binary'))
- .indexOf('\u00e8', 'binary'),
- 2
- )
- t.equal(
- new BufferList(Buffer.from('\u00e8', 'binary'))
- .indexOf('\u00e8', 'binary'),
- 0
- )
- t.equal(
- new BufferList(Buffer.from('\u00e8', 'binary'))
- .indexOf(Buffer.from('\u00e8', 'binary'), 'binary'),
- 0
- )
- t.end()
-})
-
-tape('indexOf the entire nodejs10 buffer test suite', t => {
- const b = new BufferList('abcdef')
- const buf_a = Buffer.from('a')
- const buf_bc = Buffer.from('bc')
- const buf_f = Buffer.from('f')
- const buf_z = Buffer.from('z')
-
- const stringComparison = 'abcdef'
-
- t.equal(b.indexOf('a'), 0)
- t.equal(b.indexOf('a', 1), -1)
- t.equal(b.indexOf('a', -1), -1)
- t.equal(b.indexOf('a', -4), -1)
- t.equal(b.indexOf('a', -b.length), 0)
- t.equal(b.indexOf('a', NaN), 0)
- t.equal(b.indexOf('a', -Infinity), 0)
- t.equal(b.indexOf('a', Infinity), -1)
- t.equal(b.indexOf('bc'), 1)
- t.equal(b.indexOf('bc', 2), -1)
- t.equal(b.indexOf('bc', -1), -1)
- t.equal(b.indexOf('bc', -3), -1)
- t.equal(b.indexOf('bc', -5), 1)
- t.equal(b.indexOf('bc', NaN), 1)
- t.equal(b.indexOf('bc', -Infinity), 1)
- t.equal(b.indexOf('bc', Infinity), -1)
- t.equal(b.indexOf('f'), b.length - 1)
- t.equal(b.indexOf('z'), -1)
- // empty search tests
- t.equal(b.indexOf(buf_a), 0)
- t.equal(b.indexOf(buf_a, 1), -1)
- t.equal(b.indexOf(buf_a, -1), -1)
- t.equal(b.indexOf(buf_a, -4), -1)
- t.equal(b.indexOf(buf_a, -b.length), 0)
- t.equal(b.indexOf(buf_a, NaN), 0)
- t.equal(b.indexOf(buf_a, -Infinity), 0)
- t.equal(b.indexOf(buf_a, Infinity), -1)
- t.equal(b.indexOf(buf_bc), 1)
- t.equal(b.indexOf(buf_bc, 2), -1)
- t.equal(b.indexOf(buf_bc, -1), -1)
- t.equal(b.indexOf(buf_bc, -3), -1)
- t.equal(b.indexOf(buf_bc, -5), 1)
- t.equal(b.indexOf(buf_bc, NaN), 1)
- t.equal(b.indexOf(buf_bc, -Infinity), 1)
- t.equal(b.indexOf(buf_bc, Infinity), -1)
- t.equal(b.indexOf(buf_f), b.length - 1)
- t.equal(b.indexOf(buf_z), -1)
- t.equal(b.indexOf(0x61), 0)
- t.equal(b.indexOf(0x61, 1), -1)
- t.equal(b.indexOf(0x61, -1), -1)
- t.equal(b.indexOf(0x61, -4), -1)
- t.equal(b.indexOf(0x61, -b.length), 0)
- t.equal(b.indexOf(0x61, NaN), 0)
- t.equal(b.indexOf(0x61, -Infinity), 0)
- t.equal(b.indexOf(0x61, Infinity), -1)
- t.equal(b.indexOf(0x0), -1)
-
- // test offsets
- t.equal(b.indexOf('d', 2), 3)
- t.equal(b.indexOf('f', 5), 5)
- t.equal(b.indexOf('f', -1), 5)
- t.equal(b.indexOf('f', 6), -1)
-
- t.equal(b.indexOf(Buffer.from('d'), 2), 3)
- t.equal(b.indexOf(Buffer.from('f'), 5), 5)
- t.equal(b.indexOf(Buffer.from('f'), -1), 5)
- t.equal(b.indexOf(Buffer.from('f'), 6), -1)
-
- t.equal(Buffer.from('ff').indexOf(Buffer.from('f'), 1, 'ucs2'), -1)
-
- // test invalid and uppercase encoding
- t.equal(b.indexOf('b', 'utf8'), 1)
- t.equal(b.indexOf('b', 'UTF8'), 1)
- t.equal(b.indexOf('62', 'HEX'), 1)
- t.throws(() => b.indexOf('bad', 'enc'), TypeError)
-
- // test hex encoding
- t.equal(
- Buffer.from(b.toString('hex'), 'hex')
- .indexOf('64', 0, 'hex'),
- 3
- )
- t.equal(
- Buffer.from(b.toString('hex'), 'hex')
- .indexOf(Buffer.from('64', 'hex'), 0, 'hex'),
- 3
- )
-
- // test base64 encoding
- t.equal(
- Buffer.from(b.toString('base64'), 'base64')
- .indexOf('ZA==', 0, 'base64'),
- 3
- )
- t.equal(
- Buffer.from(b.toString('base64'), 'base64')
- .indexOf(Buffer.from('ZA==', 'base64'), 0, 'base64'),
- 3
- )
-
- // test ascii encoding
- t.equal(
- Buffer.from(b.toString('ascii'), 'ascii')
- .indexOf('d', 0, 'ascii'),
- 3
- )
- t.equal(
- Buffer.from(b.toString('ascii'), 'ascii')
- .indexOf(Buffer.from('d', 'ascii'), 0, 'ascii'),
- 3
- )
-
- // test optional offset with passed encoding
- t.equal(Buffer.from('aaaa0').indexOf('30', 'hex'), 4)
- t.equal(Buffer.from('aaaa00a').indexOf('3030', 'hex'), 4)
-
- {
- // test usc2 encoding
- const twoByteString = Buffer.from('\u039a\u0391\u03a3\u03a3\u0395', 'ucs2')
-
- t.equal(8, twoByteString.indexOf('\u0395', 4, 'ucs2'))
- t.equal(6, twoByteString.indexOf('\u03a3', -4, 'ucs2'))
- t.equal(4, twoByteString.indexOf('\u03a3', -6, 'ucs2'))
- t.equal(4, twoByteString.indexOf(
- Buffer.from('\u03a3', 'ucs2'), -6, 'ucs2'))
- t.equal(-1, twoByteString.indexOf('\u03a3', -2, 'ucs2'))
- }
-
- const mixedByteStringUcs2 =
- Buffer.from('\u039a\u0391abc\u03a3\u03a3\u0395', 'ucs2')
- t.equal(6, mixedByteStringUcs2.indexOf('bc', 0, 'ucs2'))
- t.equal(10, mixedByteStringUcs2.indexOf('\u03a3', 0, 'ucs2'))
- t.equal(-1, mixedByteStringUcs2.indexOf('\u0396', 0, 'ucs2'))
-
- t.equal(
- 6, mixedByteStringUcs2.indexOf(Buffer.from('bc', 'ucs2'), 0, 'ucs2'))
- t.equal(
- 10, mixedByteStringUcs2.indexOf(Buffer.from('\u03a3', 'ucs2'), 0, 'ucs2'))
- t.equal(
- -1, mixedByteStringUcs2.indexOf(Buffer.from('\u0396', 'ucs2'), 0, 'ucs2'))
-
- {
- const twoByteString = Buffer.from('\u039a\u0391\u03a3\u03a3\u0395', 'ucs2')
-
- // Test single char pattern
- t.equal(0, twoByteString.indexOf('\u039a', 0, 'ucs2'))
- let index = twoByteString.indexOf('\u0391', 0, 'ucs2')
- t.equal(2, index, `Alpha - at index ${index}`)
- index = twoByteString.indexOf('\u03a3', 0, 'ucs2')
- t.equal(4, index, `First Sigma - at index ${index}`)
- index = twoByteString.indexOf('\u03a3', 6, 'ucs2')
- t.equal(6, index, `Second Sigma - at index ${index}`)
- index = twoByteString.indexOf('\u0395', 0, 'ucs2')
- t.equal(8, index, `Epsilon - at index ${index}`)
- index = twoByteString.indexOf('\u0392', 0, 'ucs2')
- t.equal(-1, index, `Not beta - at index ${index}`)
-
- // Test multi-char pattern
- index = twoByteString.indexOf('\u039a\u0391', 0, 'ucs2')
- t.equal(0, index, `Lambda Alpha - at index ${index}`)
- index = twoByteString.indexOf('\u0391\u03a3', 0, 'ucs2')
- t.equal(2, index, `Alpha Sigma - at index ${index}`)
- index = twoByteString.indexOf('\u03a3\u03a3', 0, 'ucs2')
- t.equal(4, index, `Sigma Sigma - at index ${index}`)
- index = twoByteString.indexOf('\u03a3\u0395', 0, 'ucs2')
- t.equal(6, index, `Sigma Epsilon - at index ${index}`)
- }
-
- const mixedByteStringUtf8 = Buffer.from('\u039a\u0391abc\u03a3\u03a3\u0395')
- t.equal(5, mixedByteStringUtf8.indexOf('bc'))
- t.equal(5, mixedByteStringUtf8.indexOf('bc', 5))
- t.equal(5, mixedByteStringUtf8.indexOf('bc', -8))
- t.equal(7, mixedByteStringUtf8.indexOf('\u03a3'))
- t.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.
- let longString = 'A'
- for (let i = 66; i < 76; i++) { // from 'B' to 'K'
- longString = longString + String.fromCharCode(i) + longString
- }
-
- const longBufferString = Buffer.from(longString)
-
- // pattern of 15 chars, repeated every 16 chars in long
- let pattern = 'ABACABADABACABA'
- for (let i = 0; i < longBufferString.length - pattern.length; i += 7) {
- const index = longBufferString.indexOf(pattern, i)
- t.equal((i + 15) & ~0xf, index,
- `Long ABACABA...-string at index ${i}`)
- }
-
- let index = longBufferString.indexOf('AJABACA')
- t.equal(510, index, `Long AJABACA, First J - at index ${index}`)
- index = longBufferString.indexOf('AJABACA', 511)
- t.equal(1534, index, `Long AJABACA, Second J - at index ${index}`)
-
- pattern = 'JABACABADABACABA'
- index = longBufferString.indexOf(pattern)
- t.equal(511, index, `Long JABACABA..., First J - at index ${index}`)
- index = longBufferString.indexOf(pattern, 512)
- t.equal(
- 1535, index, `Long JABACABA..., Second J - at index ${index}`)
-
- // Search for a non-ASCII string in a pure ASCII string.
- const asciiString = Buffer.from(
- 'arglebargleglopglyfarglebargleglopglyfarglebargleglopglyf')
- t.equal(-1, asciiString.indexOf('\x2061'))
- t.equal(3, asciiString.indexOf('leb', 0))
-
- // Search in string containing many non-ASCII chars.
- const allCodePoints = []
- for (let i = 0; i < 65536; i++) allCodePoints[i] = i
- const allCharsString = String.fromCharCode.apply(String, allCodePoints)
- const allCharsBufferUtf8 = Buffer.from(allCharsString)
- const allCharsBufferUcs2 = Buffer.from(allCharsString, 'ucs2')
-
- // Search for string long enough to trigger complex search with ASCII pattern
- // and UC16 subject.
- t.equal(-1, allCharsBufferUtf8.indexOf('notfound'))
- t.equal(-1, allCharsBufferUcs2.indexOf('notfound'))
-
- // Needle is longer than haystack, but only because it's encoded as UTF-16
- t.equal(Buffer.from('aaaa').indexOf('a'.repeat(4), 'ucs2'), -1)
-
- t.equal(Buffer.from('aaaa').indexOf('a'.repeat(4), 'utf8'), 0)
- t.equal(Buffer.from('aaaa').indexOf('你好', 'ucs2'), -1)
-
- // Haystack has odd length, but the needle is UCS2.
- t.equal(Buffer.from('aaaaa').indexOf('b', 'ucs2'), -1)
-
- {
- // Find substrings in Utf8.
- const lengths = [1, 3, 15]; // Single char, simple and complex.
- const indices = [0x5, 0x60, 0x400, 0x680, 0x7ee, 0xFF02, 0x16610, 0x2f77b]
- for (let lengthIndex = 0; lengthIndex < lengths.length; lengthIndex++) {
- for (let i = 0; i < indices.length; i++) {
- const index = indices[i]
- let length = lengths[lengthIndex]
-
- if (index + length > 0x7F) {
- length = 2 * length
- }
-
- if (index + length > 0x7FF) {
- length = 3 * length
- }
-
- if (index + length > 0xFFFF) {
- length = 4 * length
- }
-
- const patternBufferUtf8 = allCharsBufferUtf8.slice(index, index + length)
- t.equal(index, allCharsBufferUtf8.indexOf(patternBufferUtf8))
-
- const patternStringUtf8 = patternBufferUtf8.toString()
- t.equal(index, allCharsBufferUtf8.indexOf(patternStringUtf8))
- }
- }
- }
-
- {
- // Find substrings in Usc2.
- const lengths = [2, 4, 16]; // Single char, simple and complex.
- const indices = [0x5, 0x65, 0x105, 0x205, 0x285, 0x2005, 0x2085, 0xfff0]
- for (let lengthIndex = 0; lengthIndex < lengths.length; lengthIndex++) {
- for (let i = 0; i < indices.length; i++) {
- const index = indices[i] * 2
- const length = lengths[lengthIndex]
-
- const patternBufferUcs2 =
- allCharsBufferUcs2.slice(index, index + length)
- t.equal(
- index, allCharsBufferUcs2.indexOf(patternBufferUcs2, 0, 'ucs2'))
-
- const patternStringUcs2 = patternBufferUcs2.toString('ucs2')
- t.equal(
- index, allCharsBufferUcs2.indexOf(patternStringUcs2, 0, 'ucs2'))
- }
- }
- }
-
- [
- () => {},
- {},
- []
- ].forEach(val => {
- debugger
- t.throws(() => b.indexOf(val), TypeError, `"${JSON.stringify(val)}" should throw`)
- })
-
- // Test weird offset arguments.
- // The following offsets coerce to NaN or 0, searching the whole Buffer
- t.equal(b.indexOf('b', undefined), 1)
- t.equal(b.indexOf('b', {}), 1)
- t.equal(b.indexOf('b', 0), 1)
- t.equal(b.indexOf('b', null), 1)
- t.equal(b.indexOf('b', []), 1)
-
- // The following offset coerces to 2, in other words +[2] === 2
- t.equal(b.indexOf('b', [2]), -1)
-
- // Behavior should match String.indexOf()
- t.equal(
- b.indexOf('b', undefined),
- stringComparison.indexOf('b', undefined))
- t.equal(
- b.indexOf('b', {}),
- stringComparison.indexOf('b', {}))
- t.equal(
- b.indexOf('b', 0),
- stringComparison.indexOf('b', 0))
- t.equal(
- b.indexOf('b', null),
- stringComparison.indexOf('b', null))
- t.equal(
- b.indexOf('b', []),
- stringComparison.indexOf('b', []))
- t.equal(
- b.indexOf('b', [2]),
- stringComparison.indexOf('b', [2]))
-
- // test truncation of Number arguments to uint8
- {
- const buf = Buffer.from('this is a test')
- t.equal(buf.indexOf(0x6973), 3)
- t.equal(buf.indexOf(0x697320), 4)
- t.equal(buf.indexOf(0x69732069), 2)
- t.equal(buf.indexOf(0x697374657374), 0)
- t.equal(buf.indexOf(0x69737374), 0)
- t.equal(buf.indexOf(0x69737465), 11)
- t.equal(buf.indexOf(0x69737465), 11)
- t.equal(buf.indexOf(-140), 0)
- t.equal(buf.indexOf(-152), 1)
- t.equal(buf.indexOf(0xff), -1)
- t.equal(buf.indexOf(0xffff), -1)
- }
-
- // Test that Uint8Array arguments are okay.
- {
- const needle = new Uint8Array([ 0x66, 0x6f, 0x6f ])
- const haystack = new BufferList(Buffer.from('a foo b foo'))
- t.equal(haystack.indexOf(needle), 2)
- }
- t.end()
-})
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