diff options
Diffstat (limited to 'node_modules/bl/test/indexOf.js')
| -rw-r--r-- | node_modules/bl/test/indexOf.js | 492 |
1 files changed, 0 insertions, 492 deletions
diff --git a/node_modules/bl/test/indexOf.js b/node_modules/bl/test/indexOf.js deleted file mode 100644 index 62dcb01..0000000 --- a/node_modules/bl/test/indexOf.js +++ /dev/null @@ -1,492 +0,0 @@ -'use strict' - -const tape = require('tape') -const BufferList = require('../') -const { Buffer } = require('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 Uint8Array search', (t) => { - const bl = new BufferList(['abcdefg', 'abcdefg']) - const search = new Uint8Array([102, 103, 97, 98, 99]) // fgabc - - t.equal(bl.indexOf(search), 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 bufEmpty = 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(bufEmpty), 0) - t.equal(b.indexOf(bufEmpty, 1), 1) - t.equal(b.indexOf(bufEmpty, b.length + 1), b.length) - t.equal(b.indexOf(bufEmpty, 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 bufA = Buffer.from('a') - const bufBc = Buffer.from('bc') - const bufF = Buffer.from('f') - const bufZ = 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(bufA), 0) - t.equal(b.indexOf(bufA, 1), -1) - t.equal(b.indexOf(bufA, -1), -1) - t.equal(b.indexOf(bufA, -4), -1) - t.equal(b.indexOf(bufA, -b.length), 0) - t.equal(b.indexOf(bufA, NaN), 0) - t.equal(b.indexOf(bufA, -Infinity), 0) - t.equal(b.indexOf(bufA, Infinity), -1) - t.equal(b.indexOf(bufBc), 1) - t.equal(b.indexOf(bufBc, 2), -1) - t.equal(b.indexOf(bufBc, -1), -1) - t.equal(b.indexOf(bufBc, -3), -1) - t.equal(b.indexOf(bufBc, -5), 1) - t.equal(b.indexOf(bufBc, NaN), 1) - t.equal(b.indexOf(bufBc, -Infinity), 1) - t.equal(b.indexOf(bufBc, Infinity), -1) - t.equal(b.indexOf(bufF), b.length - 1) - t.equal(b.indexOf(bufZ), -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( - 'somethingnotatallsinisterwhichalsoworks') - t.equal(-1, asciiString.indexOf('\x2061')) - t.equal(3, asciiString.indexOf('eth', 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) => { - 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() -}) |