小编Les*_*sar的帖子

我create-react上周创建了一个 React 应用程序。

我有一个简单的表单，当我单击提交时会显示一条消息。

我想测试一下，这是我创建的测试SampleForm.test.tsx：

import React from "react";
import { render, fireEvent, screen, waitFor } from "@testing-library/react";
import SampleForm from "./SampleForm";
import "@testing-library/jest-dom/extend-expect"


test("renders submits form", async () => {
    const str = "THIS DIDNT DO ANYTHING";
    const { container, getByText, findByText } = render(<SampleForm />);

    fireEvent.click(screen.getByText("Submit"));

    await waitFor(() => expect(screen.getByText(str)))
});

我在 waitFor

类型错误：MutationObserver 不是构造函数

堆栈跟踪：

at node_modules/@testing-library/dom/dist/wait-for.js:38:22
      at waitFor (node_modules/@testing-library/dom/dist/wait-for.js:31:10)
      at node_modules/@testing-library/dom/dist/wait-for.js:70:54
      at node_modules/@testing-library/react/dist/pure.js:51:22
      at node_modules/@testing-library/react/dist/act-compat.js:60:24
      at batchedUpdates$1 (node_modules/react-dom/cjs/react-dom.development.js:21856:12)
      at act (node_modules/react-dom/cjs/react-dom-test-utils.development.js:929:14)
      at …

nx run myproject:test --testFile=libs/myproject/src/lib/guards/role.guard.spec.ts\n

我预计只测试一个 .spec 文件。但是，错误输出显示其他 .spec 文件。

$ nx run myproject:test --testFile=libs/myproject/src/lib/guards/role.guard.spec.ts \n\nFAIL   core  libs/myproject/src/lib/guards/role.guard.spec.ts\n\xe2\x97\x8f Test suite failed to run\n\n    libs/myproject/src/lib/auth/auth.service.ts:49:11 - error TS2564: Property 'sessions' has...\n\n    49   private sessions: string;\n    libs/myproject/src/lib/auth/auth.service.ts:51:11 - error TS2564...\n\n... Many more lines ...\n\nTest Suites: 1 failed, 1 total\nTests:       0 total\nSnapshots:   0 total\nTime:        6.953 s\nRan all test suites matching /libs\\\\myproject\\\\src\\\\lib\\\\guards\\\\role.guard.spec.ts/i.\n

为什么要运行额外的测试，例如libs/myproject/src/lib/auth/secure.directive.spec.ts？

我正在尝试解析一个看起来类似于此的文档:

<PRESOL>
<DATE>1112
<YEAR>12
<AGENCY>Defense Logistics Agency
<OFFICE>DLA Acquisition Locations
<LOCATION>DLA Land and Maritime
<ZIP>43218-3990
<CLASSCOD>59
<DESC>Proposed procurement for NSN 5365013055528 SPACER,PLATE:
Line 0001 Qty 70.00  UI EA  Deliver To: ARIZONA INDUSTRIES FOR THE BLIND By: 0180 DAYS ADOThe solicitation is an RFQ and will be available at the link provided in this notice.  Hard copies of this solicitation are not available.  Digitized drawings and Military Specifications   and Standards may be retrieved, or ordered, electronically.
All responsible sources may submit …

我的一个文件夹中有很多组件components。我怎样才能在一行中导入它们？

例如我有这个：

import FormField from "./../components/FormField";
import MultiSelect from "./../components/MultiSelect";

但我想像这样导入它：

import {MultiSelect, FormField} from "./../components";

这是行不通的。

我想让 Sequelize 中的查询 id 不相等。

这是我当前的续集查询：

return db.Area.findAll({
    where: { id: { $ne: Id },
    slug: conditions.slug }
})

生成的 SQL 查询：

*SELECT `id`, `title`, `name`, `titleL1`, `nameL1`, `level`, `slug`, `createdAt`, `updatedAt`, `ParentId` FROM `Areas` AS `Area` 
WHERE `Area`.`id` = '[object Object]' AND `Area`.`slug` = 'Nakyal-1';*

这部分不正确：

WHERE `Area`.`id` = '[object Object]' 

我究竟做错了什么？