CasperSecurity
'use strict';
var test = require('tape')
var bindexOf = require('../')
var b = new Buffer('abcdef');
var buf_a = new Buffer('a');
var buf_bc = new Buffer('bc');
var buf_f = new Buffer('f');
var buf_z = new Buffer('z');
var buf_empty = new Buffer('');
test('node 6 buffer indexOf tests', function(t) {
t.equal(bindexOf(b, 'a'), 0);
t.equal(bindexOf(b, 'a', 1), -1);
t.equal(bindexOf(b, 'a', -1), -1);
t.equal(bindexOf(b, 'a', -4), -1);
t.equal(bindexOf(b, 'a', -b.length), 0);
t.equal(bindexOf(b, 'a', NaN), 0);
t.equal(bindexOf(b, 'a', -Infinity), 0);
t.equal(bindexOf(b, 'a', Infinity), -1);
t.equal(bindexOf(b, 'bc'), 1);
t.equal(bindexOf(b, 'bc', 2), -1);
t.equal(bindexOf(b, 'bc', -1), -1);
t.equal(bindexOf(b, 'bc', -3), -1);
t.equal(bindexOf(b, 'bc', -5), 1);
t.equal(bindexOf(b, 'bc', NaN), 1);
t.equal(bindexOf(b, 'bc', -Infinity), 1);
t.equal(bindexOf(b, 'bc', Infinity), -1);
t.equal(bindexOf(b, 'f'), b.length - 1);
t.equal(bindexOf(b, 'z'), -1);
t.equal(bindexOf(b, ''), -1);
t.equal(bindexOf(b, '', 1), -1);
t.equal(bindexOf(b, '', b.length + 1), -1);
t.equal(bindexOf(b, '', Infinity), -1);
t.equal(bindexOf(b, buf_a), 0);
t.equal(bindexOf(b, buf_a, 1), -1);
t.equal(bindexOf(b, buf_a, -1), -1);
t.equal(bindexOf(b, buf_a, -4), -1);
t.equal(bindexOf(b, buf_a, -b.length), 0);
t.equal(bindexOf(b, buf_a, NaN), 0);
t.equal(bindexOf(b, buf_a, -Infinity), 0);
t.equal(bindexOf(b, buf_a, Infinity), -1);
t.equal(bindexOf(b, buf_bc), 1);
t.equal(bindexOf(b, buf_bc, 2), -1);
t.equal(bindexOf(b, buf_bc, -1), -1);
t.equal(bindexOf(b, buf_bc, -3), -1);
t.equal(bindexOf(b, buf_bc, -5), 1);
t.equal(bindexOf(b, buf_bc, NaN), 1);
t.equal(bindexOf(b, buf_bc, -Infinity), 1);
t.equal(bindexOf(b, buf_bc, Infinity), -1);
t.equal(bindexOf(b, buf_f), b.length - 1);
t.equal(bindexOf(b, buf_z), -1);
t.equal(bindexOf(b, buf_empty), -1);
t.equal(bindexOf(b, buf_empty, 1), -1);
t.equal(bindexOf(b, buf_empty, b.length + 1), -1);
t.equal(bindexOf(b, buf_empty, Infinity), -1);
t.equal(bindexOf(b, 0x61), 0);
t.equal(bindexOf(b, 0x61, 1), -1);
t.equal(bindexOf(b, 0x61, -1), -1);
t.equal(bindexOf(b, 0x61, -4), -1);
t.equal(bindexOf(b, 0x61, -b.length), 0);
t.equal(bindexOf(b, 0x61, NaN), 0);
t.equal(bindexOf(b, 0x61, -Infinity), 0);
t.equal(bindexOf(b, 0x61, Infinity), -1);
t.equal(bindexOf(b, 0x0), -1);
// test offsets
t.equal(bindexOf(b, 'd', 2), 3);
t.equal(bindexOf(b, 'f', 5), 5);
t.equal(bindexOf(b, 'f', -1), 5);
t.equal(bindexOf(b, 'f', 6), -1);
t.equal(bindexOf(b, new Buffer('d'), 2), 3);
t.equal(bindexOf(b, new Buffer('f'), 5), 5);
t.equal(bindexOf(b, new Buffer('f'), -1), 5);
t.equal(bindexOf(b, new Buffer('f'), 6), -1);
// This one doesn't make any sense
// t.equal(bindexOf(new Buffer('ff'), new Buffer('f'), 1, 'ucs2'), -1);
// test hex encoding
t.equal(
bindexOf(
new Buffer(b.toString('hex'), 'hex'),
'64',
0,
'hex'
),
3
);
t.equal(
bindexOf(
new Buffer(b.toString('hex'), 'hex'),
new Buffer('64', 'hex'), 0, 'hex'
),
3
);
// test base64 encoding
t.equal(
bindexOf(
new Buffer(b.toString('base64'), 'base64'),
'ZA==', 0, 'base64'
),
3
);
t.equal(
bindexOf(
new Buffer(b.toString('base64'), 'base64'),
new Buffer('ZA==', 'base64'), 0, 'base64'
),
3
);
// test ascii encoding
t.equal(
bindexOf(
new Buffer(b.toString('ascii'), 'ascii'),
'd', 0, 'ascii'
),
3
);
t.equal(
bindexOf(
new Buffer(b.toString('ascii'), 'ascii'),
new Buffer('d', 'ascii'), 0, 'ascii'
),
3
);
// test latin1 encoding
// does not work in LTS
/*
t.equal(
bindexOf(
new Buffer(b.toString('latin1'), 'latin1'),
'd',
0,
'latin1'
),
3
);
t.equal(
bindexOf(
new Buffer(b.toString('latin1'), 'latin1'),
new Buffer('d', 'latin1'),
0,
'latin1'
),
3
);
t.equal(
bindexOf(
new Buffer('aa\u00e8aa', 'latin1'),
'\u00e8',
'latin1'
),
2
);
t.equal(
bindexOf(
new Buffer('\u00e8', 'latin1'),
'\u00e8',
'latin1'
),
0
);
t.equal(
bindexOf(
new Buffer('\u00e8', 'latin1'),
new Buffer('\u00e8', 'latin1'),
0,
'latin1'
),
0
);
*/
// test binary encoding
t.equal(
bindexOf(
new Buffer(b.toString('binary'), 'binary'),
'd',
0,
'binary'
),
3
);
t.equal(
bindexOf(
new Buffer(b.toString('binary'), 'binary'),
new Buffer('d', 'binary'),
0,
'binary'
),
3
);
t.equal(
bindexOf(
new Buffer('aa\u00e8aa', 'binary'),
'\u00e8',
0,
'binary'
),
2
);
t.equal(
bindexOf(
new Buffer('\u00e8', 'binary'),
'\u00e8',
0,
'binary'
),
0
);
t.equal(
bindexOf(
new Buffer('\u00e8', 'binary'),
new Buffer('\u00e8', 'binary'),
0,
'binary'
),
0
);
// test optional offset with passed encoding
t.equal(new Buffer('aaaa0').indexOf('30', 'hex'), 4);
t.equal(new Buffer('aaaa00a').indexOf('3030', 'hex'), 4);
{
// test usc2 encoding
var twoByteString = new Buffer('\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(
new Buffer('\u03a3', 'ucs2'), -6, 'ucs2'));
t.equal(-1, twoByteString.indexOf('\u03a3', -2, 'ucs2'));
}
var mixedByteStringUcs2 =
new Buffer('\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(new Buffer('bc', 'ucs2'), 0, 'ucs2'));
t.equal(
10, mixedByteStringUcs2.indexOf(new Buffer('\u03a3', 'ucs2'), 0, 'ucs2'));
t.equal(
-1, mixedByteStringUcs2.indexOf(new Buffer('\u0396', 'ucs2'), 0, 'ucs2'));
{
var twoByteString = new Buffer('\u039a\u0391\u03a3\u03a3\u0395', 'ucs2');
// Test single char pattern
t.equal(0, twoByteString.indexOf('\u039a', 0, 'ucs2'));
t.equal(2, twoByteString.indexOf('\u0391', 0, 'ucs2'), 'Alpha');
t.equal(4, twoByteString.indexOf('\u03a3', 0, 'ucs2'), 'First Sigma');
t.equal(6, twoByteString.indexOf('\u03a3', 6, 'ucs2'), 'Second Sigma');
t.equal(8, twoByteString.indexOf('\u0395', 0, 'ucs2'), 'Epsilon');
t.equal(-1, twoByteString.indexOf('\u0392', 0, 'ucs2'), 'Not beta');
// Test multi-char pattern
t.equal(
0, twoByteString.indexOf('\u039a\u0391', 0, 'ucs2'), 'Lambda Alpha');
t.equal(
2, twoByteString.indexOf('\u0391\u03a3', 0, 'ucs2'), 'Alpha Sigma');
t.equal(
4, twoByteString.indexOf('\u03a3\u03a3', 0, 'ucs2'), 'Sigma Sigma');
t.equal(
6, twoByteString.indexOf('\u03a3\u0395', 0, 'ucs2'), 'Sigma Epsilon');
}
var mixedByteStringUtf8 = new Buffer('\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.
var longString = 'A';
for (var i = 66; i < 76; i++) { // from 'B' to 'K'
longString = longString + String.fromCharCode(i) + longString;
}
var longBufferString = new Buffer(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);
t.equal((i + 15) & ~0xf, index, 'Long ABACABA...-string at index ' + i);
}
t.equal(510, longBufferString.indexOf('AJABACA'), 'Long AJABACA, First J');
t.equal(
1534, longBufferString.indexOf('AJABACA', 511), 'Long AJABACA, Second J');
pattern = 'JABACABADABACABA';
t.equal(
511, longBufferString.indexOf(pattern), 'Long JABACABA..., First J');
t.equal(
1535, longBufferString.indexOf(pattern, 512), 'Long JABACABA..., Second J');
// Search for a non-ASCII string in a pure ASCII string.
var asciiString = new Buffer(
'arglebargleglopglyfarglebargleglopglyfarglebargleglopglyf');
t.equal(-1, asciiString.indexOf('\x2061'));
t.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 = new Buffer(allCharsString);
var allCharsBufferUcs2 = new Buffer(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(new Buffer('aaaa').indexOf('a'.repeat(4), 'ucs2'), -1);
t.equal(new Buffer('aaaa').indexOf('a'.repeat(4), 'utf8'), 0);
t.equal(new Buffer('aaaa').indexOf('你好', 'ucs2'), -1);
// Haystack has odd length, but the needle is UCS2.
t.equal(new Buffer('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);
t.equal(index, allCharsBufferUtf8.indexOf(patternBufferUtf8));
var patternStringUtf8 = patternBufferUtf8.toString();
t.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);
t.equal(
index, allCharsBufferUcs2.indexOf(patternBufferUcs2, 0, 'ucs2'));
var patternStringUcs2 = patternBufferUcs2.toString('ucs2');
t.equal(
index, allCharsBufferUcs2.indexOf(patternStringUcs2, 0, 'ucs2'));
}
}
}
t.throws(function() {
bindexOf(b, function() { });
});
t.throws(function() {
bindexOf(b, {});
});
t.throws(function() {
bindexOf(b, []);
});
t.end();
});