【发布时间】:2021-11-20 05:28:58
【问题描述】:
堆栈
- vue 3.2.19
- @vue/test-utils 2.0.0-rc.15
- 打字稿 4.1.6
问题
运行命令vue-cli-service test:unit --no-cache时出现问题。
请查看TypeError
(链接到 CI https://github.com/baronkoko/vue-unit-tests-type-error/runs/3728921894?check_suite_focus=true)
在 Vue 组件中使用时发生,从节点模块导入 typescript 文件,其中又存在另一个 typescript 文件导入
example.spec.ts
import { shallowMount } from "@vue/test-utils";
import HelloWorld from "@/components/HelloWorld.vue";
describe("HelloWorld.vue", () => {
it("should render full name", () => {
const firstName = "Tailor";
const lastName = "Cox";
const wrapper = shallowMount(HelloWorld, {
props: { firstName, lastName },
});
expect(wrapper.text()).toMatch(
`${firstName.toUpperCase()} ${lastName.toUpperCase()}`
);
});
});
HelloWorld.vue
<template>
<div class="hello">
<h1>{{ fullName }}</h1>
</div>
</template>
<script lang="ts">
import { defineComponent } from "vue";
import { FakeUtil } from "fake-utils-lib/src/fake-util";
export default defineComponent({
name: "HelloWorld",
props: {
firstName: {
type: String,
default: "",
},
lastName: {
type: String,
default: "",
},
},
computed: {
fullName() {
const util = new FakeUtil();
return util.getFullNameCapitalized(this.firstName, this.lastName);
},
},
});
</script>
fake-util.ts
import { Helpers } from "./helpers";
export class FakeUtil {
getFullNameCapitalized(firstName: string, lastName: string): string {
return `${Helpers.capitalize(firstName)} ${Helpers.capitalize(lastName)}`;
}
}
helpers.ts
export class Helpers {
static capitalize(text: string): string {
return text.toUpperCase();
}
}
完整示例https://github.com/baronkoko/vue-unit-tests-type-error
可能的解决方案:
-
将扩展名添加到导入的文件中,但它看起来像这样
// @ts-忽略
从“./helpers.ts”导入{ Helpers };
-
为 jest.config.js ts-jest 启用 isolatedModules
全局变量:{ “开玩笑”:{ 隔离模块:真, }, },
但随后我们会得到很多 SyntaxError,例如,如果存在可选链接 SyntaxError
有人可以帮忙吗?
【问题讨论】:
标签: typescript vue.js vue-test-utils ts-jest vue-jest