对我来说(如果你想使用getbytestd):

expect(() => getByTestId('time-label')).toThrow()

来自DOM测试库文档-出现和消失

Asserting elements are not present The standard getBy methods throw an error when they can't find an element, so if you want to make an assertion that an element is not present in the DOM, you can use queryBy APIs instead: const submitButton = screen.queryByText('submit') expect(submitButton).toBeNull() // it doesn't exist The queryAll APIs version return an array of matching nodes. The length of the array can be useful for assertions after elements are added or removed from the DOM. const submitButtons = screen.queryAllByText('submit') expect(submitButtons).toHaveLength(2) // expect 2 elements not.toBeInTheDocument The jest-dom utility library provides the .toBeInTheDocument() matcher, which can be used to assert that an element is in the body of the document, or not. This can be more meaningful than asserting a query result is null. import '@testing-library/jest-dom/extend-expect' // use `queryBy` to avoid throwing an error with `getBy` const submitButton = screen.queryByText('submit') expect(submitButton).not.toBeInTheDocument()

// check if modal can be open
const openModalBtn = await screen.findByTestId("open-modal-btn");
fireEvent.click(openModalBtn);

expect(
  await screen.findByTestId(`title-modal`)
).toBeInTheDocument();


// check if modal can be close
const closeModalBtn = await screen.findByTestId(
  "close-modal-btn"
);
fireEvent.click(closeModalBtn);

const sleep = (ms: number) => {
  return new Promise((resolve) => setTimeout(resolve, ms));
};

await sleep(500);
expect(screen.queryByTestId("title-modal")).toBeNull();

queryByRole的默认行为是只查找一个元素。如果不是，则抛出错误。因此，如果您捕捉到一个错误，这意味着当前查询找到0个元素

expect(
   ()=>screen.getByRole('button')
).toThrow()

如果没有找到任何东西，getByRole返回'null'

 expect(screen.queryByRole('button')).toEqual((null))

findByRole是异步运行的，因此它返回一个Promise。如果它没有找到一个元素，它就拒绝承诺。如果你正在使用这个，你需要运行异步回调

test("testing", async () => {
  let nonExist = false;
  try {
    await screen.findByRole("button");
  } catch (error) {
    nonExist = true;
  }
  expect(nonExist).toEqual(true);
});
    

你必须使用querybytestd而不是getbytestd。

这里是一个代码示例，我想测试是否组件与“汽车”id不存在。

 describe('And there is no car', () => {
  it('Should not display car mark', () => {
    const props = {
      ...defaultProps,
      base: null,
    }
    const { queryByTestId } = render(
      <IntlProvider locale="fr" messages={fr}>
        <CarContainer{...props} />
      </IntlProvider>,
    );
    expect(queryByTestId(/car/)).toBeNull();
  });
});

对我来说(如果你想使用getbytestd):

expect(() => getByTestId('time-label')).toThrow()