Update test specs

[spec] Revamp test
[spec] Fix "[Error: Cannot find module '../www']"
[spec] Add missing 'typeof' to the assetions.
[git] Ignore the node_modules/ directory.
[spec] fix failing tests

.gitignore

@@ -1,3 +1,4 @@
 *.iml
 .idea
 .DS_Store
+/node_modules/

spec/helper/cordova.js

@@ -0,0 +1,83 @@
+/* global cordova:true */
+
+/*!
+ * Module dependencies.
+ */
+
+/**
+ * cordova.js for node.
+ *
+ * Think of this as cordova-node, which would be simliar to cordova-android
+ * or cordova-browser. The purpose of this module is to enable testing
+ * of a plugin's JavaScript interface.
+ *
+ * When this module is first required, it will insert a global cordova
+ * instance, which can hijack cordova-specific commands within the pluin's
+ * implementation.
+ *
+ * Remember to require this module before the plugin that you want to test.
+ *
+ * Example:
+ *
+ *     var cordova = require('./helper/cordova'),
+ *         myPlugin = require('../www/myPlugin');
+ */
+
+module.exports = global.cordova = cordova = {
+
+    /**
+     * cordova.require Mock.
+     *
+     * Hijacks all cordova.requires. By default, it returns an empty function.
+     * You can define your own implementation of each required module before
+     * or after it has been required.
+     *
+     * See `cordova.required` to learn how to add your own module implemtnation.
+     */
+
+    require: function(moduleId) {
+        // define a default function if it doesn't exist
+        if (!cordova.required[moduleId]) {
+            cordova.required[moduleId] = function() {};
+        }
+        // create a new module mapping between the module Id and cordova.required.
+        return new ModuleMap(moduleId);
+    },
+
+    /**
+     * Cordova module implementations.
+     *
+     * A key-value hash, where the key is the module such as 'cordova/exec'
+     * and the value is the function or object returned.
+     *
+     * For example:
+     *
+     *     var exec = require('cordova/exec');
+     *
+     * Will map to:
+     *
+     *     cordova.required['cordova/exec'];
+     */
+
+    required: {
+        // populated at runtime
+    }
+};
+
+/**
+ * Module Mapper.
+ *
+ * Returns a function that when executed will lookup the implementation
+ * in cordova.required[id].
+ *
+ * @param {String} moduleId is the module name/path, such as 'cordova/exec'
+ * @return {Function}.
+ */
+
+function ModuleMap(moduleId) {
+    return function() {
+        // lookup and execute the module's mock implementation, passing
+        // in any parameters that were provided.
+        return cordova.required[moduleId].apply(this, arguments);
+    };
+}