feat: 增加单元测试功能

src/Test.vue

@@ -0,0 +1,28 @@
+<template>
+  <span data-test="count">{{count}}</span>
+  <button data-test="button" @click="click">click</button>
+</template>
+
+<script>
+/* vue-jest的测试示例 */
+import VueRouter from 'vue-router'
+export default {
+  name: 'Test',
+  data () {
+    return {
+      count: 0
+    }
+  },
+  methods: {
+    click () {
+      this.count++
+    }
+  },
+  created () {
+    const { currentRoute } = VueRouter.useRouter()
+    return {
+      currentRoute
+    }
+  }
+}
+</script>