Test: Added new case in button component

Author: rafaesc

tests/components/button/Button.vue

@@ -80,6 +80,16 @@ export default {
         return 'foo'
       },
     },
+    /**
+     * Object or array defaults must be returned from
+     * a factory function
+     */
+    propE: {
+      type: Object,
+      default: () => {
+        return { message: 'hello' }
+      },
+    },
     /**
      *@ignore
      *