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

import CallbackPage from '../../pages/CallbackPage';

test('callback page renders provided code', () => {
    global.opener = {
        postMessage: jest.fn()
    }

    let mockLocation = new URL("https://forms.pythondiscord.com/authorize?code=abcdef");

    Object.defineProperty(global, "location", {value: mockLocation})

    let comp = <CallbackPage />;

    const { getByText } = render(comp);


    let codeText = getByText(/Code is abcdef/);
    expect(codeText).toBeInTheDocument();
    expect(global.opener.postMessage).toBeCalledTimes(1)
});