diff --git a/package.json b/package.json
index bf6a16b346..435edf89da 100755
--- a/package.json
+++ b/package.json
@@ -89,7 +89,8 @@
   },
   "pre-commit": {
     "run": [
-      "lint"
+      "lint",
+      "test"
     ],
     "silent": false
   },
diff --git a/src/index.js b/src/index.js
index ab6962277f..f791d2df22 100755
--- a/src/index.js
+++ b/src/index.js
@@ -4,14 +4,8 @@ import Scene from './core/scene';
 import Global from './global';
 
 const version = Global.version;
-const track = function(enable) {
-  Global.trackable = enable;
-};
-import './track';
 export {
   version,
-  Scene,
-  track
-
+  Scene
 };
 
diff --git a/src/layer/render/polygon/drawAnimate.js b/src/layer/render/polygon/drawAnimate.js
index 534a96ea7d..e8a4883bb5 100644
--- a/src/layer/render/polygon/drawAnimate.js
+++ b/src/layer/render/polygon/drawAnimate.js
@@ -21,7 +21,6 @@ export default function DrawAnimate(attributes, style) {
     ANIMATE: true
   });
   const fillPolygonMesh = new THREE.Mesh(geometry, material);
-  this.fillPolygonMesh = fillPolygonMesh;
   return fillPolygonMesh;
 }