`getByRole` `description` does not look at `aria-label`

• @testing-library/react version: 16.0.1
• Testing Framework and version: vitest@2.0.5
• DOM Environment: @testing-library/jest-dom@6.5.0 (6.4.5 also found in our lock file, likely from other deps)

Relevant code or config:

  it("RTL example", () => {
    const Input = (): JSX.Element => (
      <>
        <label htmlFor="id--input">Label</label>
        <input
          type="text"
          id="id--input"
          aria-describedby="id--error-msg"
        />
        <div id="id--error-msg">
          <span aria-label="icon_label">icon_name</span>
          <span>The error message</span>
        </div>
      </>
    )
    const { getByRole } = render(<Input />)
    const input = getByRole("textbox", {
      description: "icon_label The error message",
    })

    expect(input).toBeInTheDocument()
  })

What you did:

Found discrepancy between browser results and unit test using the exact same snippet.
The snippet is a simpler version of our TextField component, where the validation message is prefixed with a font icon with an aria-label.

What happened:

Browser	Testing Library

Reproduction:

See snippet

Problem description:

Not reflective of the real result.

Suggested solution:

Start by reproducing the issue with the JSX snippet in the report and trace the getByRole description handling, especially how aria-label contributes to the accessible description. Add a regression test for the expected "icon_label The error message" description, and confirm the reported query succeeds.