From 6f040b6c4090fbc060bf2a06a7a01b900f4fe890 Mon Sep 17 00:00:00 2001
From: ycjcl868 <45808948@qq.com>
Date: Mon, 4 Feb 2019 22:55:00 +0800
Subject: [PATCH] fix: strict check input

---
 components/form/__tests__/label.test.js | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/components/form/__tests__/label.test.js b/components/form/__tests__/label.test.js
index cba6dcb93c..e0deb006e5 100644
--- a/components/form/__tests__/label.test.js
+++ b/components/form/__tests__/label.test.js
@@ -11,8 +11,8 @@ describe('Form', () => {
 
     // Use origin logic
     if (id) {
-      const input = this.getElementsByTagName('input')[0];
-      if (input.id === id) {
+      const [input] = this.getElementsByTagName('input');
+      if (input && input.id === id) {
         return input;
       }
     }