Test component with react testing-library

[christianpredebon]

Hi,
I'm trying to test the component with the react testing-library. The test is quite simple but for some reason when I run it the testid cannot be found. The error returned is TestingLibraryElementError: Unable to find an element by: [data-testid="clamped-text"] and the test example is as follow:

const longText = "...";

it("should clamp text", () => {
  render(<ClampLines {...props} data-testid="clamped-text" />);

  const containerDiv = screen.getByTestId("clamped-text");
  expect(containerDiv).toBeInTheDocument();
});

When I go to analyse the elements in the browser, the element with that testid actually does not exist. Any help?