Index: frontend/node_modules/obuf/test/buffer-test.js
===================================================================
--- frontend/node_modules/obuf/test/buffer-test.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
+++ frontend/node_modules/obuf/test/buffer-test.js	(revision 9af201e94b5a79beb92a30858fc54de4bc3b9449)
@@ -0,0 +1,268 @@
+var assert = require('assert');
+var OffsetBuffer = require('../');
+
+describe('OffsetBuffer', function() {
+  var o;
+  beforeEach(function() {
+    o = new OffsetBuffer();
+  });
+
+  describe('.take()', function() {
+    it('should return empty buffer', function() {
+      var b = new Buffer('hello world');
+      o.push(b);
+      var r = o.take(0);
+      assert.equal(r.length, 0);
+      assert.equal(o.size, b.length);
+    });
+
+    it('should return the first buffer itself', function() {
+      var b = new Buffer('hello world');
+      o.push(b);
+      var r = o.take(b.length);
+      assert(r === b);
+      assert(o.isEmpty());
+    });
+
+    it('should return the slice of the buffer ', function() {
+      var b = new Buffer('hello world');
+      o.push(b);
+      assert.equal(o.take(5).toString(), 'hello');
+      assert.equal(o.take(1).toString(), ' ');
+      assert.equal(o.take(5).toString(), 'world');
+      assert(o.isEmpty());
+    });
+
+    it('should concat buffers', function() {
+      o.push(new Buffer('hello'));
+      o.push(new Buffer(' '));
+      o.push(new Buffer('world!'));
+      assert.equal(o.take(11).toString(), 'hello world');
+      assert.equal(o.take(1).toString(), '!');
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.skip', function() {
+    it('should skip bytes', function() {
+      o.push(new Buffer('hello '));
+      o.push(new Buffer('world'));
+      o.push(new Buffer(' oh gosh'));
+
+      assert.equal(o.take(2).toString(), 'he');
+      o.skip(1);
+      assert.equal(o.take(2).toString(), 'lo');
+      o.skip(1);
+      assert.equal(o.take(2).toString(), 'wo');
+      o.skip(4);
+      assert.equal(o.take(7).toString(), 'oh gosh');
+
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.peekUInt8', function() {
+    it('should return and not move by one byte', function() {
+      o.push(new Buffer([ 0x1, 0x2 ]));
+      assert.equal(o.peekUInt8(), 1);
+      assert.equal(o.readUInt8(), 1);
+      assert.equal(o.peekUInt8(), 2);
+      assert.equal(o.readUInt8(), 2);
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.peekInt8', function() {
+    it('should return signed number', function() {
+      o.push(new Buffer([ 0x80 ]));
+      assert.equal(o.peekInt8(), -128);
+      assert.equal(o.readInt8(), -128);
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.readUInt8', function() {
+    it('should return and move by one byte', function() {
+      o.push(new Buffer([ 0x1, 0x2 ]));
+      o.push(new Buffer([ 0x3, 0x4 ]));
+      assert.equal(o.readUInt8(), 1);
+      assert.equal(o.readUInt8(), 2);
+      assert.equal(o.readUInt8(), 3);
+      assert.equal(o.readUInt8(), 4);
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.readInt8', function() {
+    it('should return signed number', function() {
+      o.push(new Buffer([ 0x8f, 0x7f ]));
+      assert.equal(o.readInt8(), -113);
+      assert.equal(o.readInt8(), 127);
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.readUInt16LE', function() {
+    it('should return and move by two bytes', function() {
+      o.push(new Buffer([ 0x1, 0x2, 0x3 ]));
+      o.push(new Buffer([ 0x4, 0x5, 0x6 ]));
+      assert.equal(o.readUInt16LE(), 0x0201);
+      assert.equal(o.readUInt16LE(), 0x0403);
+      assert.equal(o.readUInt16LE(), 0x0605);
+      assert(o.isEmpty());
+    });
+
+    it('should return and move by two bytes (regression #1)', function() {
+      o.push(new Buffer([ 0x1 ]));
+      o.push(new Buffer([ 0x2, 0x3, 0x4 ]));
+      assert.equal(o.readUInt16LE(), 0x0201);
+      assert.equal(o.readUInt16LE(), 0x0403);
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.readInt16LE', function() {
+    it('should return signed number', function() {
+      o.push(new Buffer([ 0x23, 0x81 ]));
+      assert.equal(o.readInt16LE(), -32477);
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.readUInt24LE', function() {
+    it('should return and move by three bytes', function() {
+      o.push(new Buffer([ 0x1, 0x2, 0x3, 0x4, 0x5 ]));
+      o.push(new Buffer([ 0x6, 0x7 ]));
+      o.push(new Buffer([ 0x8, 0x9 ]));
+      assert.equal(o.readUInt24LE(), 0x030201);
+      assert.equal(o.readUInt24LE(), 0x060504);
+      assert.equal(o.readUInt24LE(), 0x090807);
+      assert(o.isEmpty());
+    });
+
+    it('should return and move by three bytes (regression #1)', function() {
+      o.push(new Buffer([ 0x1, 0x2 ]));
+      o.push(new Buffer([ 0x3 ]));
+      assert.equal(o.readUInt24LE(), 0x030201);
+      assert.equal(o.buffers.length, 0);
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.readInt24LE', function() {
+    it('should return signed number', function() {
+      o.push(new Buffer([ 0x23, 0x45, 0x81 ]));
+      assert.equal(o.readInt24LE(), -8305373);
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.readUInt32LE', function() {
+    it('should return and move by four bytes', function() {
+      o.push(new Buffer([ 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7 ]));
+      o.push(new Buffer([ 0x8, 0x9, 0xa ]));
+      o.push(new Buffer([ 0xb, 0xc, 0xd ]));
+      o.push(new Buffer([ 0xe, 0xf, 0x10 ]));
+      assert.equal(o.readUInt32LE(), 0x04030201);
+      assert.equal(o.readUInt32LE(), 0x08070605);
+      assert.equal(o.readUInt32LE(), 0x0c0b0a09);
+      assert.equal(o.readUInt32LE(), 0x100f0e0d);
+      assert(o.isEmpty());
+    });
+
+    it('should return and move by four bytes (regression #1)', function() {
+      o.push(new Buffer([ 0x1, 0x2, 0x3 ]));
+      o.push(new Buffer([ 0x4 ]));
+      assert.equal(o.readUInt32LE(), 0x04030201);
+      assert.equal(o.buffers.length, 0);
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.readInt32LE', function() {
+    it('should return signed number', function() {
+      o.push(new Buffer([ 0xff, 0xff, 0xff, 0xff ]));
+      assert.equal(o.readInt32LE(), -1);
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.readUInt16BE', function() {
+    it('should return and move by two bytes', function() {
+      o.push(new Buffer([ 0x1, 0x2, 0x3 ]));
+      o.push(new Buffer([ 0x4, 0x5, 0x6 ]));
+      assert.equal(o.readUInt16BE(), 0x0102);
+      assert.equal(o.readUInt16BE(), 0x0304);
+      assert.equal(o.readUInt16BE(), 0x0506);
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.readInt16BE', function() {
+    it('should return signed number', function() {
+      o.push(new Buffer([ 0x81, 0x23 ]));
+      assert.equal(o.readInt16BE(), -32477);
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.readUInt24BE', function() {
+    it('should return and move by three bytes', function() {
+      o.push(new Buffer([ 0x1, 0x2, 0x3, 0x4, 0x5 ]));
+      o.push(new Buffer([ 0x6, 0x7 ]));
+      o.push(new Buffer([ 0x8, 0x9 ]));
+      assert.equal(o.readUInt24BE(), 0x010203);
+      assert.equal(o.readUInt24BE(), 0x040506);
+      assert.equal(o.readUInt24BE(), 0x070809);
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.readInt24BE', function() {
+    it('should return signed number', function() {
+      o.push(new Buffer([ 0x81, 0x45, 0x23 ]));
+      assert.equal(o.readInt24BE(), -8305373);
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.readUInt32BE', function() {
+    it('should return and move by four bytes', function() {
+      o.push(new Buffer([ 0x1, 0x2, 0x3, 0x4, 0x5, 0x6, 0x7 ]));
+      o.push(new Buffer([ 0x8, 0x9, 0xa ]));
+      o.push(new Buffer([ 0xb, 0xc, 0xd ]));
+      o.push(new Buffer([ 0xe, 0xf, 0x10 ]));
+      assert.equal(o.readUInt32BE(), 0x01020304);
+      assert.equal(o.readUInt32BE(), 0x05060708);
+      assert.equal(o.readUInt32BE(), 0x090a0b0c);
+      assert.equal(o.readUInt32BE(), 0x0d0e0f10);
+      assert(o.isEmpty());
+    });
+
+    it('should return positive values', function() {
+      o.push(new Buffer([ 0xff, 0xff, 0xff, 0xff ]));
+      assert.equal(o.readUInt32BE(), 0xffffffff);
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.readInt32BE', function() {
+    it('should return signed number', function() {
+      o.push(new Buffer([ 0xff, 0xff, 0xff, 0xff ]));
+      assert.equal(o.readInt32BE(), -1);
+      assert(o.isEmpty());
+    });
+  });
+
+  describe('.has', function() {
+    it('should properly check the amount of the remaining bytes', function() {
+      o.push(new Buffer([ 1, 2, 3 ]));
+      assert(o.has(3));
+      assert.equal(o.readUInt8(), 0x01);
+      assert(!o.has(3));
+      assert(o.has(2));
+      assert.equal(o.readUInt16BE(), 0x0203);
+      assert(!o.has(1));
+    });
+  });
+});