tests added

lib/statemutate.js

@@ -1,17 +1,17 @@
 function Projections(initial) {
 	var self = this;
 	var events = [];
-	var initialState = initial;
-	var currentState = initial;
+	var initialState = initial || '';
+	var currentState = initial || '';
 	var projection = function(state, message) { return state; };
 
 	self.Message = function(name, payload) {
 		this.messageName = name || 'DefaultMessageName';
 		this.payload = payload || '';	
 	}
 	self.for = function(initial) {
-		initialState = initial;
-		currentState = initial;
+		initialState = initial || '';
+		currentState = initial || '';
 		return self;
 	}
 	self.append = function(message) {

package.json

@@ -12,11 +12,13 @@
   },
   "main": "./lib/statemutate.js",
   "scripts": {
-    "test": "vows --spec --isolate"
+    "test": "vows test/* --spec --isolate"
   },
   "dependencies": {
   },
   "devDependencies": {
-    "vows": "0.6.x"
-  }
+    "vows": "0.6.x",
+    "assert" : "0.4.x"
+  },
+  "license": "MIT"
 }

test/specs.js

@@ -0,0 +1,42 @@
+var vows = require('vows'),
+    assert = require('assert');
+
+var sm = require('../lib/statemutate.js')
+
+vows.describe('With basic state projection').addBatch({
+    'When no initital state defined and no elements arranged': {
+        topic: function () { 
+            var sut = new sm.Projections();
+            return sut;
+        },
+        'we get a empty string as final state': function (topic) {
+            assert.equal(topic.perform(), '');
+        }
+    },
+    'When a simple initial state and a element added': {
+        topic: function () { 
+            var sut = new sm.Projections();
+            sut
+                .append({
+                    payload: 'tests'
+                })
+                .for({
+                    text: ''
+                })
+                .with(function(state, message) {
+                    state.text += message.payload;
+                    return state;
+                })
+            return sut.perform();
+        },
+
+        'we get other final state': {
+            'has a final "test" state': function (topic) {
+                assert.equal(topic.text, 'test');
+            },
+            'is not a empty string': function (topic) {
+                assert.notEqual(topic, '');
+            }
+        }
+    }
+}).export(module);