src: use subarray() in Buffer#slice() for speedup · nodejs/node@0a5f80a
@@ -1061,14 +1061,46 @@ assert.equal(buf.readInt8(0), -1);
10611061assert.equal(buf.slice(-10, 10), '0123456789');
10621062assert.equal(buf.slice(-20, 10), '0123456789');
10631063assert.equal(buf.slice(-20, -10), '');
1064+assert.equal(buf.slice(), '0123456789');
1065+assert.equal(buf.slice(0), '0123456789');
1066+assert.equal(buf.slice(0, 0), '');
1067+assert.equal(buf.slice(undefined), '0123456789');
1068+assert.equal(buf.slice('foobar'), '0123456789');
1069+assert.equal(buf.slice(undefined, undefined), '0123456789');
1070+1071+assert.equal(buf.slice(2), '23456789');
1072+assert.equal(buf.slice(5), '56789');
1073+assert.equal(buf.slice(10), '');
1074+assert.equal(buf.slice(5, 8), '567');
1075+assert.equal(buf.slice(8, -1), '8');
1076+assert.equal(buf.slice(-10), '0123456789');
1077+assert.equal(buf.slice(0, -9), '0');
1078+assert.equal(buf.slice(0, -10), '');
10641079assert.equal(buf.slice(0, -1), '012345678');
10651080assert.equal(buf.slice(2, -2), '234567');
10661081assert.equal(buf.slice(0, 65536), '0123456789');
10671082assert.equal(buf.slice(65536, 0), '');
1083+assert.equal(buf.slice(-5, -8), '');
1084+assert.equal(buf.slice(-5, -3), '56');
1085+assert.equal(buf.slice(-10, 10), '0123456789');
10681086for (var i = 0, s = buf.toString(); i < buf.length; ++i) {
1087+assert.equal(buf.slice(i), s.slice(i));
1088+assert.equal(buf.slice(0, i), s.slice(0, i));
10691089assert.equal(buf.slice(-i), s.slice(-i));
10701090assert.equal(buf.slice(0, -i), s.slice(0, -i));
10711091}
1092+1093+var utf16Buf = new Buffer('0123456789', 'utf16le');
1094+assert.deepEqual(utf16Buf.slice(0, 6), Buffer('012', 'utf16le'));
1095+1096+assert.equal(buf.slice('0', '1'), '0');
1097+assert.equal(buf.slice('-5', '10'), '56789');
1098+assert.equal(buf.slice('-10', '10'), '0123456789');
1099+assert.equal(buf.slice('-10', '-5'), '01234');
1100+assert.equal(buf.slice('-10', '-0'), '');
1101+assert.equal(buf.slice('111'), '');
1102+assert.equal(buf.slice('0', '-111'), '');
1103+10721104// try to slice a zero length Buffer
10731105// see https://github.com/joyent/node/issues/5881
10741106SlowBuffer(0).slice(0, 1);