Mixins are invalid

[nuochong]

vue2 mixins test.js

export default {
  name: 'Test',
  components: {},
  data() {
    return {
      unit: 'testUnit'
    }
  },
  beforeDestroy() {
    console.log('vue2-beforeDestroy-mi')
  },
  destroyed() {
    console.log('vue2-destroyed-mi')
  },
  methods: {
    test() {
      console.log('testUnit')
    }
  }
}

vue2 components

<script>
import test from '@/mixins/test'
export default {
  name: 'HelloWorld',
  mixins:[test],
  props: {
    // msg: String,
  },
  render: (h) => {
    return h('div',{
      props: {
        value: '222',
      }, 
      style: {
        width: '100%',
      }, 
      on: {
        click: () => {
          console.log('click');
        },
      },
    },'This is  render examples', );
  },
  data() {
    return {
      modalOpen: false,
    };
  },
  beforeDestroy() {
    console.log('vue2-beforeDestroy')
  },
  destroyed() {
    console.log('vue2-destroyed')
  },
  mounted() {
    console.log('mounted', this);
  },
  methods: {
    test() {
      console.log('test');
    },
  },
};
</script>

<!-- Add "scoped" attribute to limit CSS to this component only -->
<style scoped lang="scss">
h3 {
  margin: 40px 0 0;
}
ul {
  list-style-type: none;
  padding: 0;
}
li {
  display: inline-block;
  margin: 0 10px;
}
a {
  color: #42b983;
}
</style>

vue3 use

<template>
  <div class="home">
    <hello-world></hello-world>
  </div>
</template>

<script>
import toVue3 from 'vue-2-3/to-vue-3';
import Vue2 from 'vue2';
import * as Vue3 from 'vue/dist/vue.esm-bundler.js';
toVue3.register(Vue2, Vue3);
import HelloWorld from '../../../vue-test-2/src/components/HelloWorld'
let hello = toVue3(HelloWorld)
export default {
  name: 'Home',
  components: {
    HelloWorld:hello,
  },
  methods: {},
};
</script>