use different port for test server, fix test precision limiter

Gruntfile.js

@@ -69,7 +69,7 @@ module.exports = function(grunt) {
       },
       serve: {
         options: {
-          port: 9000
+          port: 8000
         }
       }
     },
@@ -139,8 +139,7 @@ module.exports = function(grunt) {
   grunt.loadNpmTasks('grunt-shell');
 
   grunt.registerTask('default', ['test', 'build']);
-  grunt.registerTask('test', ['jshint', 'test:demo']);
-  grunt.registerTask('test:all', ['build:dev', 'connect:serve', 'test']);
+  grunt.registerTask('test', ['build:dev', 'connect:serve', 'jshint', 'test:demo']);
   grunt.registerTask('dev', ['build:dev', 'connect:watch', 'watch']);
 
   grunt.registerTask('test:demo', function() {

package.json

@@ -34,7 +34,7 @@
   },
   "scripts": {
     "dev": "npm install && grunt dev",
-    "test": "grunt test:all"
+    "test": "grunt test"
   },
   "dependencies": {}
 }

test/browser/TestDemo.js

@@ -6,7 +6,7 @@ var system = require('system');
 
 var demo,
     frames = 10,
-    testUrl = 'http://localhost:9000/demo/dev.html',
+    testUrl = 'http://localhost:8000/demo/dev.html',
     refsPath = 'test/browser/refs',
     diffsPath = 'test/browser/diffs';
 
@@ -71,6 +71,9 @@ var test = function(status) {
             return engine.world;
         }, demo, frames);
 
+        worldEnd = resurrect.resurrect(resurrect.stringify(worldEnd, precisionLimiter));
+        worldStart = resurrect.resurrect(resurrect.stringify(worldStart, precisionLimiter));
+
         if (fs.exists(worldStartPath)) {
             var worldStartRef = resurrect.resurrect(fs.read(worldStartPath));
             var worldStartDiff = compare(worldStartRef, worldStart);
@@ -145,7 +148,6 @@ var test = function(status) {
 };
 
 var precisionLimiter = function(key, value) {
-    // limit precision of floats
     if (typeof value === 'number') {
         return parseFloat(value.toFixed(5));
     }