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astro/packages/integrations/prefetch/test/custom-selectors.test.js
Tony Sullivan 79fe09fa30
Adds a prefetch integration for near-instant page navigations (#3725)
* Adds a basic @astrojs/prefetch integration

* adding tests for custom selectors

* missed in last commit

* Adding a few docs, removing the option for `selectors` to be an element array

* adding an option for the concurrency limit

* fixing test for updated integration options

* Update packages/labs/prefetch/src/client.ts

Co-authored-by: Nate Moore <natemoo-re@users.noreply.github.com>

* nit: removing the NodeJS.Timer type to allow typescript to infer the return

* updating docs for default selector with ~=

* Skip prefetching on 2G connections, or when data saver is enabled

* refactor: moving to packages/integrations, Astro Labs TBD down the road

* README typo fix

Co-authored-by: Nate Moore <natemoo-re@users.noreply.github.com>
2022-06-27 18:26:21 +00:00

72 lines
2.1 KiB
JavaScript

import { expect } from '@playwright/test';
import { testFactory } from './test-utils.js';
import prefetch from '../dist/index.js';
const test = testFactory({
root: './fixtures/basic-prefetch/',
integrations: [
prefetch({
selector: 'a[href="/contact"]'
}),
]
});
test.describe('Custom prefetch selectors', () => {
test.describe('dev', () => {
let devServer;
test.beforeEach(async ({ astro }) => {
devServer = await astro.startDevServer();
});
test.afterEach(async () => {
await devServer.stop();
});
test.describe('prefetches links by custom selector', () => {
test('only prefetches /contact', async ({ page, astro }) => {
const requests = new Set();
page.on('request', async (request) => requests.add(request.url()));
await page.goto(astro.resolveUrl('/'));
await page.waitForLoadState('networkidle');
await expect(requests.has(astro.resolveUrl('/about')), '/about was skipped').toBeFalsy();
await expect(requests.has(astro.resolveUrl('/contact')), '/contact was prefetched').toBeTruthy();
await expect(requests.has(astro.resolveUrl('/admin')), '/admin was skipped').toBeFalsy();
});
});
});
test.describe('build', () => {
let previewServer;
test.beforeAll(async ({ astro }) => {
await astro.build();
previewServer = await astro.preview();
});
// important: close preview server (free up port and connection)
test.afterAll(async () => {
await previewServer.stop();
});
test.describe('prefetches links by custom selector', () => {
test('only prefetches /contact', async ({ page, astro }) => {
const requests = new Set();
page.on('request', async (request) => requests.add(request.url()));
await page.goto(astro.resolveUrl('/'));
await page.waitForLoadState('networkidle');
await expect(requests.has(astro.resolveUrl('/about')), '/about was skipped').toBeFalsy();
await expect(requests.has(astro.resolveUrl('/contact')), '/contact was prefetched').toBeTruthy();
await expect(requests.has(astro.resolveUrl('/admin')), '/admin was skipped').toBeFalsy();
});
});
});
});