diff --git a/examples/coin1.jpg b/examples/coin1.jpg
new file mode 100644
index 0000000..c0c411c
Binary files /dev/null and b/examples/coin1.jpg differ
diff --git a/examples/coin2.jpg b/examples/coin2.jpg
new file mode 100644
index 0000000..f6c11e7
Binary files /dev/null and b/examples/coin2.jpg differ
diff --git a/examples/motion-track.js b/examples/motion-track.js
index 89b4c1c..5e6c9b9 100644
--- a/examples/motion-track.js
+++ b/examples/motion-track.js
@@ -13,7 +13,7 @@ vid.read(function(mat){
       console.log(">>", x, ":" , rec)
       if (x % 10 == 0){
         m2.rectangle([rec[0], rec[1]], [rec[2], rec[3]])
-        m2.save('./out' + x + '.jpg')
+        m2.save('./out-motiontrack-' + x + '.jpg')
       }
       if (x<100)
         iter();
diff --git a/smoke/smoke.sh b/smoke/smoke.sh
index 8ed033b..5ac35f8 100755
--- a/smoke/smoke.sh
+++ b/smoke/smoke.sh
@@ -1,6 +1,8 @@
 #!/bin/bash
 node-gyp build && echo '-- Compiled OK -- 
 
-' && node examples/motion-track.js && 0 && node  smoke/smoketest.js && echo '-- Smoke Done, running tests --
+' && node  smoke/smoketest.js && echo '-- Smoke Done, running tests --
 
-' && npm test
+' && npm test && echo '-- Tests Run, runnning examples --
+(building example data)
+' && ./examples/make-example-files.sh && node examples/motion-track.js 
diff --git a/test/unit.js b/test/unit.js
index 614ba9c..ea85f5a 100755
--- a/test/unit.js
+++ b/test/unit.js
@@ -9,6 +9,16 @@ assertDeepSimilar = function(res, exp){
   assert.deepEqual(res, exp)
 }
 
+assertWithinRange = function(res, exp, range){
+  assert.ok((res - exp) < range || (res - exp) > -range, "Not within range:" + res + " (" + exp + "+- " + range + ")")  
+}
+
+assertWithinRanges = function(res, exp, range){
+  for (var i =0; i<res.length; i++){
+    assertWithinRange(res[i], exp[i], range);
+  }
+}
+
 vows.describe('Smoke Tests OpenCV').addBatch({
 	  "Importing": {
 
@@ -263,20 +273,22 @@ vows.describe('Smoke Tests OpenCV').addBatch({
       topic : function(){
         var cv = require('../lib/opencv')
           , self = this
-
-        var im = cv.readImage('./examples/mona.png', function(e, im){
-          self.callback(im, cv)
+        
+        cv.readImage('./examples/coin1.jpg', function(e, im){
+          cv.readImage('./examples/coin2.jpg', function(e, im2){
+            self.callback(im, im2, cv)
+          })
         })
       }
       
-      , "create TrackedObject" : function(im, cv){
-        var tracked = new cv.TrackedObject(im, [0, 0, 50, 50]);
+      , "create TrackedObject" : function(im, im2, cv){
+        var tracked = new cv.TrackedObject(im, [420, 110, 490, 170]);
         assert.ok(tracked);
       }
 
-      , "use TrackedObject.track" : function(im,cv){
-          var tracked = new cv.TrackedObject(im, [0, 0, 50, 50]);
-          assert.equal(tracked.track(im), [10, 10, 50, 50]);
+      , "use TrackedObject.track" : function(im, im2, cv){
+          var tracked = new cv.TrackedObject(im, [420, 110, 490, 170], {channel: 'v'});
+          assertWithinRanges(tracked.track(im2), [386, 112, 459, 166], 10);
       }
     }