如何在玩笑的单元测试中测试Bootstrap Vue组件的存在? [英] How to test for the existance of a bootstrap vue component in unit tests with jest?

问题描述

所以我有一些包含b-form-input组件的代码，我正在测试该组件是否呈现.我正在使用wrapper.find({name: "b-form-input"}).exists()来确定该引导vue组件是否存在.但是，当我知道组件正在渲染时，此函数将连续返回false.关于如何正确执行此操作，我可以帮些忙吗?

So I have some code that has a b-form-input component and I am testing whether that component renders. I am using wrapper.find({name: "b-form-input"}).exists() to determine whether that bootstrap vue component exists. However this function continually returns false when I know that the component is rendering. Could I have some help on how to do this correctly?

推荐答案

查看bootstrap-vue源代码，看起来该元素的名称是BFormInput而不是b-form-input(它是使用kebab-情况):

Looking at the bootstrap-vue source code, it looks like the name of the element is BFormInput and not b-form-input (it was registered using kebab-case):

https://github.com/bootstrap-vue/bootstrap-vue/blob/2fb5ce823a577fcc2414d78bd43ed9e5351cb1c0/src/components/form-input/form-input.js#L33

...
export const BFormInput = /*#__PURE__*/ Vue.extend({
  name: 'BFormInput',
  ...

有两个选项可以找到组件；使用名称或组件构造函数.例如:

You have two options to locate the component; using the name, or the component constructor. For example:

import BootstrapVue, { BFormInput } from 'bootstrap-vue';
import { shallowMount, createLocalVue } from '@vue/test-utils';
import HelloWorld from '@/components/HelloWorld.vue';

const localVue = createLocalVue();
localVue.use(BootstrapVue);

describe('HelloWorld.vue', () => {
  it('BFormInput exists', () => {
    const wrapper = shallowMount(HelloWorld, { localVue })
    expect(wrapper.find({ name: 'BFormInput' }).exists()).toBe(true);
    expect(wrapper.find(BFormInput).exists()).toBe(true);
  });
});

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