import { absoluteUrl } from 'main';
import * as url from 'url';

const createRequest = (params: { [k: string]: any }) => ({
    get: (param: string) => params[param],
    originalUrl: params.originalUrl,
    protocol: params.protocol,
});

describe('absoluteUrl', () => {
    test('Composes URL', () => {
        const req = createRequest({
            host: 'example.com',
            originalUrl: '/posts/123',
            protocol: 'http',
        });
        expect(absoluteUrl(req)).toBe('http://example.com/posts/123');
    });
    test('Composes URL the same way as url.format', () => {
        const protocol = 'ftp';
        const host = 'unicorn@foo.bar:8800';
        const originalUrl = '/home';
        const req = createRequest({ protocol, host, originalUrl });
        expect(absoluteUrl(req)).toBe(
            url.format({
                host,
                protocol,
                pathname: originalUrl,
            })
        );
    });
    test('Returns null on null', () => {
        expect(absoluteUrl(null as any)).toBe(null);
    });
    test('Returns null on invalid request', () => {
        const mischievousRequest = { protocol: 'foo', get: () => 'x' };
        expect(absoluteUrl(mischievousRequest as any)).toBe(null);
    });
});