npm and error messages

node_modules/buffer/test/node/test-buffer-bad-overload.js

@@ -0,0 +1,18 @@
+'use strict';
+var Buffer = require('../../').Buffer;
+
+
+var assert = require('assert');
+
+assert.doesNotThrow(function() {
+  Buffer.allocUnsafe(10);
+});
+
+assert.throws(function() {
+  Buffer.from(10, 'hex');
+});
+
+assert.doesNotThrow(function() {
+  Buffer.from('deadbeaf', 'hex');
+});
+