mall + pay：

1. 修复单元测试的报错

Author: YunaiV

src/views/pay/app/index.vue

@@ -1,6 +1,6 @@
 <template>
   <div class="app-container">
-
+    <doc-alert title="支付功能开启" url="https://doc.iocoder.cn/pay/build/" />
     <!-- 搜索工作栏 -->
     <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
       <el-form-item label="应用名" prop="name">

src/views/pay/demo/index.vue

@@ -1,5 +1,10 @@
 <template>
   <div class="app-container">
+    <doc-alert title="支付宝支付接入" url="https://doc.iocoder.cn/pay/alipay-pay-demo/" />
+    <doc-alert title="支付宝、微信退款接入" url="https://doc.iocoder.cn/pay/refund-demo/" />
+    <doc-alert title="微信公众号支付接入" url="https://doc.iocoder.cn/pay/wx-pub-pay-demo/" />
+    <doc-alert title="微信小程序支付接入" url="https://doc.iocoder.cn/pay/wx-lite-pay-demo/" />
+
     <!-- 操作工具栏 -->
     <el-row :gutter="10" class="mb8">
       <el-col :span="1.5">

src/views/pay/notify/index.vue

@@ -1,5 +1,6 @@
 <template>
   <div class="app-container">
+    <doc-alert title="支付功能开启" url="https://doc.iocoder.cn/pay/build/" />
 
     <!-- 搜索工作栏 -->
     <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="100px">

src/views/pay/order/index.vue

@@ -1,5 +1,8 @@
 <template>
   <div class="app-container">
+    <doc-alert title="支付宝支付接入" url="https://doc.iocoder.cn/pay/alipay-pay-demo/" />
+    <doc-alert title="微信公众号支付接入" url="https://doc.iocoder.cn/pay/wx-pub-pay-demo/" />
+    <doc-alert title="微信小程序支付接入" url="https://doc.iocoder.cn/pay/wx-lite-pay-demo/" />
 
     <!-- 搜索工作栏 -->
     <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="120px">

src/views/pay/refund/index.vue

@@ -1,5 +1,7 @@
 <template>
   <div class="app-container">
+    <doc-alert title="支付宝、微信退款接入" url="https://doc.iocoder.cn/pay/refund-demo/" />
+
     <!-- 搜索工作栏 -->
     <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="120px">
       <el-form-item label="应用编号" prop="appId">