sapper/test/apps/redirects/test.ts

import * as assert from 'assert';
import * as puppeteer from 'puppeteer';
import { build } from '../../../api';
import { AppRunner } from '../AppRunner';

describe('redirects', function() {
	this.timeout(10000);

	let r: AppRunner;

	// hooks
	before('build app', () => build({ cwd: __dirname }));
	before('start runner', async () => {
		r = await new AppRunner().start(__dirname);
	});

	after(() => r && r.end());

	// tests
	it('redirects on server', async () => {
		await r.load('/redirect-from');

		assert.equal(
			r.page.url(),
			`${r.base}/redirect-to`
		);

		assert.equal(
			await r.text('h1'),
			'redirected'
		);
	});

	it('redirects in client', async () => {
		await r.load('/');
		await r.sapper.start();
		await r.sapper.prefetchRoutes();

		await r.page.click('[href="redirect-from"]');
		await r.wait();

		assert.equal(
			r.page.url(),
			`${r.base}/redirect-to`
		);

		assert.equal(
			await r.text('h1'),
			'redirected'
		);
	});

	it('redirects to root on server', async () => {
		await r.load('/redirect-to-root');

		assert.equal(
			r.page.url(),
			`${r.base}/`
		);

		assert.equal(
			await r.text('h1'),
			'root'
		);
	});

	it('redirects to root in client', async () => {
		await r.load('/');
		await r.sapper.start();
		await r.sapper.prefetchRoutes();

		await r.page.click('[href="redirect-to-root"]');
		await r.wait();

		assert.equal(
			r.page.url(),
			`${r.base}/`
		);

		assert.equal(
			await r.text('h1'),
			'root'
		);
	});

	const interceptor = (request: puppeteer.Request) => {
		if (/example\.com/.test(request.url())) {
			request.respond({
				status: 200,
				contentType: 'text/html',
				body: `<h1>external</h1>`
			});
		} else {
			request.continue();
		}
	};

	it('redirects to external URL on server', async () => {
		await r.intercept_requests(interceptor, async () => {
			await r.load('/redirect-to-external');
		});

		assert.equal(
			r.page.url(),
			`https://example.com/`
		);

		assert.equal(
			await r.text('h1'),
			'external'
		);
	});

	it('redirects to external URL in client', async () => {
		await r.load('/');
		await r.sapper.start();
		await r.sapper.prefetchRoutes();

		await r.intercept_requests(interceptor, async () => {
			await r.page.click('[href="redirect-to-external"]');
			await r.wait();
		});

		assert.equal(
			r.page.url(),
			`https://example.com/`
		);

		assert.equal(
			await r.text('h1'),
			'external'
		);
	});

	it('survives the tests with no server errors', () => {
		assert.deepEqual(r.errors, []);
	});
});