revert tests to previous state

test/test.js

@@ -9,13 +9,7 @@ suite('Bärneruhr', function () {
     });
 
     teardown(function () {
-        var uhr;
-        try {
-            uhr = elem.uhr('instance');
-        } catch (e) {
-            // no work? goodbye!
-            return;
-        }
+        var uhr = elem.uhr('instance');
         if (uhr !== undefined) {
             cleanupCookies(uhr.id);
         }
@@ -35,7 +29,9 @@ suite('Bärneruhr', function () {
     }
 
     test('create and destroy widget', function () {
-        var id, uhr;
+        var uhr = elem.uhr('instance');
+        var id;
+        assert.isUndefined(uhr);
         elem.uhr();
         uhr = elem.uhr('instance');
         assert.isNotNull(uhr);