ByLabelText

getByLabelText(
  // If you're using `screen`, then skip the container argument:
  container: HTMLElement,
  text: TextMatch,
  options?: {
    selector?: string = '*',
    exact?: boolean = true,
    normalizer?: NormalizerFn,
  }): HTMLElement

// for/htmlFor relationship between label and form element id
<label for="username-input">Username</label>
<input id="username-input" />

// The aria-labelledby attribute with form elements
<label id="username-label">Username</label>
<input aria-labelledby="username-label" />

// Wrapper labels
<label>Username <input /></label>

// Wrapper labels where the label text is in another child element
<label>
  <span>Username</span>
  <input />
</label>

// aria-label attributes
// Take care because this is not a label that users can see on the page,
// so the purpose of your input must be obvious to visual users.
<input aria-label="Username" />

import { screen } from "@testing-library/dom";

const inputNode = screen.getByLabelText("Username");

import { render, screen } from "@testing-library/react";

render(<Login />);

const inputNode = screen.getByLabelText("Username");

cy.findByLabelText("Username").should("exist");

// Multiple elements labelled via aria-labelledby
<label id="username">Username</label>
<input aria-labelledby="username" />
<span aria-labelledby="username">Please enter your username</span>

// Multiple labels with the same text
<label>
  Username
  <input />
</label>
<label>
  Username
  <textarea></textarea>
</label>

const inputNode = screen.getByLabelText("Username", { selector: "input" });

// This case is not valid
// for/htmlFor between label and an element that is not a form element
<section id="photos-section">
  <label for="photos-section">Photos</label>
</section>