lens/src/renderer/components/+welcome/__test__/welcome.test.tsx

/**
 * Copyright (c) 2021 OpenLens Authors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

import React from "react";
import { render } from "@testing-library/react";
import "@testing-library/jest-dom/extend-expect";
import { Welcome } from "../welcome";
import { TopBarRegistry, WelcomeMenuRegistry } from "../../../../extensions/registries";

describe("<Welcome/>", () => {
  beforeEach(() => {
    TopBarRegistry.createInstance();
    WelcomeMenuRegistry.createInstance();
  });

  afterEach(() => {
    TopBarRegistry.resetInstance();
    WelcomeMenuRegistry.resetInstance();
  });

  it("renders items in the top bar", async () => {
    const testId = "testId";
    const text = "topBarItem";
 
    TopBarRegistry.getInstance().getItems = jest.fn().mockImplementationOnce(() => [
      {
        components: {
          Item: () => <span data-testid={testId}>{text}</span>
        }
      }
    ]);

    const { getByTestId } = render(<Welcome  />);

    expect(await getByTestId(testId)).toHaveTextContent(text);
  });
});