Started tests with utils.base64

.gitmodules

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+[submodule "support/expresso"]
+	path = support/expresso
+	url = git://github.com/visionmedia/expresso.git

Makefile

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+
+test:
+	@./support/expresso/bin/expresso test/*.test.js \
+		-I lib
+
+.PHONY: test

lib/ns3/auth.js

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+
+/*!
+ * ns3 - auth
+ * Copyright(c) 2010 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+/**
+ * Module dependencies.
+ */
+
+var http = require('http')
+  , fs = require('fs');

lib/ns3/index.js

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+
+/*!
+ * ns3
+ * Copyright(c) 2010 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+/**
+ * Library version.
+ * 
+ * @type String
+ */
+
+exports.version = '0.0.1';
+
+/**
+ * Expose utilities.
+ * 
+ * @type Object
+ */
+
+exports.utils = require('./utils');

lib/ns3/utils.js

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+
+/*!
+ * ns3 - utils
+ * Copyright(c) 2010 LearnBoost <dev@learnboost.com>
+ * MIT Licensed
+ */
+
+/**
+ * Module dependencies.
+ */
+
+var crypto = require('crypto');
+
+exports.base64 = {
+  encode: function(str){
+    return new Buffer(str).toString('base64');
+  },
+
+  decode: function(str){
+    return new Buffer(str, 'base64').toString();
+  }
+};

test/ns3.test.js

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+
+/**
+ * Module dependencies.
+ */
+
+var ns3 = require('ns3');
+
+module.exports = {
+  'test .version': function(assert){
+    assert.match(ns3.version, /^\d+\.\d+\.\d+$/);
+  }
+};

test/utils.test.js

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+
+/**
+ * Module dependencies.
+ */
+
+var ns3 = require('ns3')
+  , utils = ns3.utils;
+
+module.exports = {
+  'test .base64.encode()': function(assert){
+    assert.equal('aGV5', utils.base64.encode('hey'));
+  },
+
+  'test .base64.decode()': function(assert){
+    assert.equal('hey', utils.base64.decode('aGV5'));
+  }
+};