Don't detach handler if it doesn't exist

If the beforeEach() step has been skipped then there won't be anything
here to detach.

1 files changed, 3 insertions, 1 deletions

diff --git a/tests/test.gesturehandler.js b/tests/test.gesturehandler.js
index bfb2621..ba2f799 100644
--- a/tests/test.gesturehandler.js
+++ b/tests/test.gesturehandler.js
@@ -40,7 +40,9 @@ describe('Gesture handler', function () {
     });
 
     afterEach(function () {
-        handler.detach();
+        if (handler) {
+            handler.detach();
+        }
         target = null;
         gestures = null;
     });