diff --git a/xos/core/xoslib/karma.conf.js b/xos/core/xoslib/karma.conf.js
index d78c020..4beb3b7 100644
--- a/xos/core/xoslib/karma.conf.js
+++ b/xos/core/xoslib/karma.conf.js
@@ -35,6 +35,7 @@
 
     // list of files to exclude
     exclude: [
+      //'**/xos-utils.test.js' //skip this test, useful in dev, comment before commit
     ],
 
 
diff --git a/xos/core/xoslib/spec/xoslib/xos-backbone.test.js b/xos/core/xoslib/spec/xoslib/xos-backbone.test.js
new file mode 100644
index 0000000..ec1b939
--- /dev/null
+++ b/xos/core/xoslib/spec/xoslib/xos-backbone.test.js
@@ -0,0 +1,37 @@
+'use strict';
+
+describe('The XOSModel', () => {
+
+  var model;
+
+  beforeEach(() => {
+    model = new XOSModel();
+  });
+
+  describe('url method', () => {
+    it('should set the correct url', () => {
+      const ctx = {attributes: {resource_uri: 'onlab.us'}};
+      let res = model.url.apply(ctx);
+      expect(res).toEqual('onlab.us/?no_hyperlinks=1')
+    });
+
+    it('should remove query params', () => {
+      const ctx = {attributes: {resource_uri: 'onlab.us?query=params'}};
+      let res = model.url.apply(ctx);
+      expect(res).toEqual('onlab.us/?no_hyperlinks=1')
+    });
+  });
+
+  describe('listMethods method', () => {
+    it('should list all methods in instance', () => {
+      const instance = {
+        m1: () => {},
+        m2: () => {}
+      };
+
+      let res = model.listMethods.apply(instance);
+      expect(res.length).toBe(2);
+      expect(res[0]).toEqual('m1');
+    });
+  });
+});
\ No newline at end of file
diff --git a/xos/core/xoslib/spec/xoslib/utils.test.js b/xos/core/xoslib/spec/xoslib/xos-utils.test.js
similarity index 100%
rename from xos/core/xoslib/spec/xoslib/utils.test.js
rename to xos/core/xoslib/spec/xoslib/xos-utils.test.js
diff --git a/xos/core/xoslib/static/js/xoslib/xos-backbone.js b/xos/core/xoslib/static/js/xoslib/xos-backbone.js
index 4ba763d..74f62ef 100644
--- a/xos/core/xoslib/static/js/xoslib/xos-backbone.js
+++ b/xos/core/xoslib/static/js/xoslib/xos-backbone.js
@@ -53,6 +53,7 @@
 
         /* from backbone-tastypie.js */
         url: function() {
+                    // TODO handle error if no property
                     var url = this.attributes.resource_uri;
 
                     if (!url) {