Found multiple elements error in React Testing Library

user_8582246 0
Viewed 23563

Im having a problem with a query, I'm trying to get two radio inputs, I don't have any problem with one of them, but with the other one React Testing Library thrown an error: It Found multiple elements with the role "radio" and name /to/i:

queries

test('Render form with default items', () => {
  const handleUpdateValue = jest.fn();
  const handleNextStep = jest.fn();
  render(
    <Form
      handleNextStep={handleNextStep}
      updateValue={handleUpdateValue}
      transferFundsValues={{}}
    />
  );

  const amountInput = screen.getByLabelText(/amount/i);
  const fromRadio = screen.getByLabelText(/from/i);
  const toRadio = screen.getByLabelText(/to/i);
  const messageInput = screen.getByLabelText(/message/i);

  const continueButton = screen.getByRole('button', { name: /continue/i });
  const cancelButton = screen.getByRole('button', { name: /cancel/i });

  // If no value has been entered to the inputs, the continue button must be
  // disabled
  expect(continueButton).toBeDisabled();
});

Html structure

<label for="transferFunds_from" class="ant-form-item-required" title="From">From</label>
<input id="transferFunds_from" type="radio" class="ant-radio-button-input" value="">

<label for="transferFunds_to" class="ant-form-item-required" title="To">To</label>
<input id="transferFunds_to" type="radio" class="ant-radio-button-input" value="">

Error thrown by RTL

 TestingLibraryElementError: Found multiple elements with the role "radio" and name `/to/i`

    Here are the matching elements:

    <input
      class="ant-radio-button-input"
      id="transferFunds_from"
      type="radio"
      value=""
    />

    <input
      class="ant-radio-button-input"
      id="transferFunds_to"
      type="radio"
      value=""
    />

I don't know if I'm doing something wrong in the HTML structure or if it's a React Testing Library error.

react-testing-library jestjs reactjs javascript
3 Answers

Just a quick tip, if you have multiple matching elements, you can query like this:

HTML:

<a href="/my-element">My element</a>
<a href="/my-element">My element</a>

TEST:

test('renders my element', () => {
  let link = screen.getAllByText('My element')[0] as HTMLAnchorElement;
  expect(link.href).toContain('/my-element');
});
user_66396490

What was causing this for me was simply having another render() in the test file that was not inside an it().... so the component was being rendered twice.

rookie mistake :-)

user_130759770

I wrote similar expects and for me works well. Maybe something is wrong with your current @testing-library/react version. Try 10.4.9

The code that I used

import React from 'react'
import { render, screen } from '@testing-library/react'

function Form() {
  return (
    <div>
      <label
        htmlFor="transferFunds_from"
        className="ant-form-item-required"
        title="From"
      >
        From
      </label>
      <input
        id="transferFunds_from"
        type="radio"
        className="ant-radio-button-input"
        value=""
      />

      <label
        htmlFor="transferFunds_to"
        className="ant-form-item-required"
        title="To"
      >
        To
      </label>
      <input
        id="transferFunds_to"
        type="radio"
        className="ant-radio-button-input"
        value=""
      />
    </div>
  )
}

test('Render form with default items', () => {
  render(<Form />)

  const fromRadio = screen.getByLabelText(/from/i)
  const toRadio = screen.getByLabelText(/to/i)

  expect(fromRadio).toBeVisible()
  expect(toRadio).toBeVisible()
})
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