add unit test

packages/search/src/search.vue

@@ -17,13 +17,13 @@
 </template>
 
 <script>
-  import ZanIcon from 'packages/icon';
+  import VanIcon from 'packages/icon';
 
   export default {
     name: 'van-search',
 
     components: {
-      ZanIcon
+      VanIcon
     },
 
     props: {

packages/tab/src/tabs.vue

@@ -80,7 +80,7 @@
        */
       handleTabClick(index, el) {
         if (el.disabled) {
-          el.$emit('disabled', index);
+          this.$emit('disabled', index);
           return;
         }