add node_modules

node_modules/buffer/test/node/test-buffer-concat.js

@@ -0,0 +1,30 @@
+'use strict';
+if (process.env.OBJECT_IMPL) global.TYPED_ARRAY_SUPPORT = false;
+var Buffer = require('../../').Buffer;
+var common = {};
+var assert = require('assert');
+
+var zero = [];
+var one  = [ new Buffer('asdf') ];
+var long = [];
+for (var i = 0; i < 10; i++) long.push(new Buffer('asdf'));
+
+var flatZero = Buffer.concat(zero);
+var flatOne = Buffer.concat(one);
+var flatLong = Buffer.concat(long);
+var flatLongLen = Buffer.concat(long, 40);
+
+assert(flatZero.length === 0);
+assert(flatOne.toString() === 'asdf');
+// A special case where concat used to return the first item,
+// if the length is one. This check is to make sure that we don't do that.
+assert(flatOne !== one[0]);
+assert(flatLong.toString() === (new Array(10 + 1).join('asdf')));
+assert(flatLongLen.toString() === (new Array(10 + 1).join('asdf')));
+
+assert.throws(function() {
+  Buffer.concat([42]);
+}, TypeError);
+
+// console.log('ok');
+