如何在vue测试工具中模拟navigator.clipboard.writeText

Question

我正在尝试在nuxt中测试复制到剪贴板，但是测试用例无法覆盖navigator.clipboard.writeText，如何测试导航器内容，我也尝试过shallowMount和mount，但都无法正常工作，

<template>
  <span v-b-tooltip.hover class="url" title="Copy" data-test="copyUrl" @click="handleCopy(listing.url)">
    <i class="fa fa-copy" aria-hidden="true"/>
  </span>
</template>

<script>
export default {
  ............
  methods: {
    ..............
    handleCopy(url) {
      navigator.clipboard.writeText(url);
    }
    ...............
  }
  ........
};
</script>


// test case
import Vuex from 'vuex';
import { shallowMount, createLocalVue } from '@vue/test-utils';

// componenet
import Table from '@/components/Listings/Layouts/Table.vue';

const wrapper = shallowMount(Table, {
  attachToDocument: true,
});

describe('Table.vue', () => {
  it('check handleCopy', () => {
    wrapper.find('[data-test="copyUrl"]').trigger('click');
  });
});

Answer 1

window.__defineGetter__('navigator', function() {
  return {
    clipboard: {
      writeText: jest.fn(x => x)
    }
  }
})
尝试一下