diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 000000000..d5a072936
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,11 @@
+language: node_js
+
+before_script:
+- npm install -g grunt-cli
+- npm install -g bower
+- bower install
+- npm install
+
+script:
+- npm run build
+- npm test
\ No newline at end of file
diff --git a/karma.conf.js b/karma.conf.js
index c59bab7e2..bda01b007 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -2,73 +2,74 @@
 // Generated on Thu Feb 18 2016 22:00:23 GMT+0100 (CET)
 
 module.exports = function(config) {
-  config.set({
+    config.set({
 
-    // base path that will be used to resolve all patterns (eg. files, exclude)
-    basePath: '',
+        // base path that will be used to resolve all patterns (eg. files, exclude)
+        basePath: '',
 
 
-    // frameworks to use
-    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
-    frameworks: ['jasmine'],
+        // frameworks to use
+        // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
+        frameworks: ['jasmine'],
 
 
-    // list of files / patterns to load in the browser
-    files: [
-      'bower_components/jquery/dist/jquery.min.js',
-      'bower_components/jquery-ui/jquery-ui.min.js',
-      'bower_components/lodash/dist/lodash.min.js',
-      'src/gridstack.js',
-      'spec/*-spec.js'
-    ],
+        // list of files / patterns to load in the browser
+        files: [
+          'bower_components/jquery/dist/jquery.min.js',
+          'bower_components/jquery-ui/jquery-ui.min.js',
+          'bower_components/lodash/dist/lodash.min.js',
+          'src/gridstack.js',
+          'spec/*-spec.js'
+        ],
 
 
-    // list of files to exclude
-    exclude: [
-    ],
+        // list of files to exclude
+        exclude: [
+        ],
 
 
-    // preprocess matching files before serving them to the browser
-    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
-    preprocessors: {
-        'src/gridstack.js': ['coverage']
-    },
+        // preprocess matching files before serving them to the browser
+        // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
+        preprocessors: {
+            'src/gridstack.js': ['coverage']
+        },
 
 
-    // test results reporter to use
-    // possible values: 'dots', 'progress'
-    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
-    reporters: ['progress', 'coverage'],
+        // test results reporter to use
+        // possible values: 'dots', 'progress'
+        // available reporters: https://npmjs.org/browse/keyword/karma-reporter
+        reporters: ['progress', 'coverage'],
 
 
-    // web server port
-    port: 9876,
+        // web server port
+        port: 9876,
 
 
-    // enable / disable colors in the output (reporters and logs)
-    colors: true,
+        // enable / disable colors in the output (reporters and logs)
+        colors: true,
 
 
-    // level of logging
-    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
-    logLevel: config.LOG_INFO,
+        // level of logging
+        // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN
+        // config.LOG_INFO || config.LOG_DEBUG
+        logLevel: config.LOG_INFO,
 
 
-    // enable / disable watching file and executing tests whenever any file changes
-    autoWatch: true,
+        // enable / disable watching file and executing tests whenever any file changes
+        autoWatch: true,
 
 
-    // start these browsers
-    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
-    browsers: ['PhantomJS'],
+        // start these browsers
+        // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
+        browsers: ['PhantomJS'],
 
 
-    // Continuous Integration mode
-    // if true, Karma captures browsers, runs the tests and exits
-    singleRun: false,
+        // Continuous Integration mode
+        // if true, Karma captures browsers, runs the tests and exits
+        singleRun: true,
 
-    // Concurrency level
-    // how many browser should be started simultaneous
-    concurrency: Infinity
-  })
+        // Concurrency level
+        // how many browser should be started simultaneous
+        concurrency: Infinity
+    });
 }
diff --git a/package.json b/package.json
index 10014170d..84168f055 100644
--- a/package.json
+++ b/package.json
@@ -7,6 +7,10 @@
     "type": "git",
     "url": "git+https://github.com/troolee/gridstack.js.git"
   },
+  "scripts": {
+    "build": "grunt",
+    "test": "karma start karma.conf.js"
+  },
   "keywords": [
     "gridstack",
     "grid",
diff --git a/spec/gridstack-spec.js b/spec/gridstack-spec.js
index 84026fe0a..a96bd7c55 100644
--- a/spec/gridstack-spec.js
+++ b/spec/gridstack-spec.js
@@ -73,16 +73,16 @@ describe('gridstack', function() {
 
         it('should sort ascending without width.', function() {
             w.width = false;
-            w.nodes = [{x: 7, y: 0}, {x: 4, y: 4}, {x: 9, y: 0}, {x: 0, y: 1}];
+            w.nodes = [{x: 7, y: 0, width: 1}, {x: 4, y: 4, width: 1}, {x: 9, y: 0, width: 1}, {x: 0, y: 1, width: 1}];
             e.prototype._sortNodes.call(w, 1);
-            expect(w.nodes).toEqual([{x: 0, y: 1}, {x: 7, y: 0}, {x: 4, y: 4}, {x: 9, y: 0}]);
+            expect(w.nodes).toEqual([{x: 7, y: 0, width: 1}, {x: 9, y: 0, width: 1}, {x: 0, y: 1, width: 1}, {x: 4, y: 4, width: 1}]);
         });
 
         it('should sort descending without width.', function() {
             w.width = false;
-            w.nodes = [{x: 7, y: 0}, {x: 4, y: 4}, {x: 9, y: 0}, {x: 0, y: 1}];
+            w.nodes = [{x: 7, y: 0, width: 1}, {x: 4, y: 4, width: 1}, {x: 9, y: 0, width: 1}, {x: 0, y: 1, width: 1}];
             e.prototype._sortNodes.call(w, -1);
-            expect(w.nodes).toEqual([{x: 9, y: 0}, {x: 4, y: 4}, {x: 7, y: 0}, {x: 0, y: 1}]);
+            expect(w.nodes).toEqual([{x: 4, y: 4, width: 1}, {x: 0, y: 1, width: 1}, {x: 9, y: 0, width: 1}, {x: 7, y: 0, width: 1}]);
         });
 
     });