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image-ssg.test.js
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image-ssg.test.js
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import { expect } from 'chai';
import * as cheerio from 'cheerio';
import sizeOf from 'image-size';
import fs from 'fs/promises';
import { fileURLToPath } from 'url';
import { loadFixture } from './test-utils.js';
describe('SSG images - dev', function () {
let fixture;
let devServer;
let $;
before(async () => {
fixture = await loadFixture({ root: './fixtures/basic-image/' });
devServer = await fixture.startDevServer();
const html = await fixture.fetch('/').then((res) => res.text());
$ = cheerio.load(html);
});
after(async () => {
await devServer.stop();
});
[
{
title: 'Local images',
id: '#social-jpg',
url: '/@astroimage/assets/social.jpg',
query: { f: 'jpg', w: '506', h: '253' },
},
{
title: 'Local image no transforms',
id: '#no-transforms',
url: '/@astroimage/assets/social.jpg',
query: { }
},
{
title: 'Filename with spaces',
id: '#spaces',
url: '/@astroimage/assets/blog/introducing astro.jpg',
query: { f: 'webp', w: '768', h: '414' },
},
{
title: 'Inline imports',
id: '#inline',
url: '/@astroimage/assets/social.jpg',
query: { f: 'jpg', w: '506', h: '253' },
},
{
title: 'Remote images',
id: '#google',
url: '/_image',
query: {
f: 'webp',
w: '544',
h: '184',
href: 'https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_272x92dp.png',
},
},
{
title: 'Remote without file extension',
id: '#ipsum',
url: '/_image',
query: {
w: '200',
h: '300',
href: 'https://dummyimage.com/200x300',
},
},
{
title: 'Public images',
id: '#hero',
url: '/_image',
query: { f: 'webp', w: '768', h: '414', href: '/hero.jpg' },
},
{
title: 'Background color',
id: '#bg-color',
url: '/_image',
query: {
f: 'jpeg',
w: '544',
h: '184',
bg: '#333333',
href: 'https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_272x92dp.png',
},
},
].forEach(({ title, id, url, query }) => {
it(title, () => {
const image = $(id);
const src = image.attr('src');
const [route, params] = src.split('?');
expect(route).to.equal(url);
const searchParams = new URLSearchParams(params);
for (const [key, value] of Object.entries(query)) {
expect(searchParams.get(key)).to.equal(value);
}
});
});
});
describe('SSG images with subpath - dev', function () {
let fixture;
let devServer;
let $;
before(async () => {
fixture = await loadFixture({ root: './fixtures/basic-image/', base: '/docs' });
devServer = await fixture.startDevServer();
const html = await fixture.fetch('/docs/').then((res) => res.text());
$ = cheerio.load(html);
});
after(async () => {
await devServer.stop();
});
[
{
title: 'Local images',
id: '#social-jpg',
url: '/@astroimage/assets/social.jpg',
query: { f: 'jpg', w: '506', h: '253' },
},
{
title: 'Filename with spaces',
id: '#spaces',
url: '/@astroimage/assets/blog/introducing astro.jpg',
query: { f: 'webp', w: '768', h: '414' },
},
{
title: 'Inline imports',
id: '#inline',
url: '/@astroimage/assets/social.jpg',
query: { f: 'jpg', w: '506', h: '253' },
},
{
title: 'Remote images',
id: '#google',
url: '/_image',
query: {
f: 'webp',
w: '544',
h: '184',
href: 'https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_272x92dp.png',
},
},
{
title: 'Remote without file extension',
id: '#ipsum',
url: '/_image',
query: {
w: '200',
h: '300',
href: 'https://dummyimage.com/200x300',
},
},
{
title: 'Public images',
id: '#hero',
url: '/_image',
query: { f: 'webp', w: '768', h: '414', href: '/hero.jpg' },
},
{
title: 'Background color',
id: '#bg-color',
url: '/_image',
query: {
f: 'jpeg',
w: '544',
h: '184',
bg: '#333333',
href: 'https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_272x92dp.png',
},
},
].forEach(({ title, id, url, query }) => {
it(title, () => {
const image = $(id);
const src = image.attr('src');
const [route, params] = src.split('?');
expect(route).to.equal(url);
const searchParams = new URLSearchParams(params);
for (const [key, value] of Object.entries(query)) {
expect(searchParams.get(key)).to.equal(value);
}
});
});
});
describe('SSG images - build', function () {
let fixture;
let $;
let html;
before(async () => {
fixture = await loadFixture({ root: './fixtures/basic-image/' });
await fixture.build();
html = await fixture.readFile('/index.html');
$ = cheerio.load(html);
});
function verifyImage(pathname, expected) {
const url = new URL('./fixtures/basic-image/dist/' + pathname, import.meta.url);
const dist = fileURLToPath(url);
const result = sizeOf(dist);
expect(result).to.deep.equal(expected);
}
[
{
title: 'Local images',
id: '#social-jpg',
regex: /^\/assets\/social.\w{8}_\w{4,10}.jpg/,
size: { width: 506, height: 253, type: 'jpg' },
},
{
title: 'Filename with spaces',
id: '#spaces',
regex: /^\/assets\/introducing astro.\w{8}_\w{4,10}.webp/,
size: { width: 768, height: 414, type: 'webp' },
},
{
title: 'Inline imports',
id: '#inline',
regex: /^\/assets\/social.\w{8}_\w{4,10}.jpg/,
size: { width: 506, height: 253, type: 'jpg' },
},
{
title: 'Remote images',
id: '#google',
regex: /^\/assets\/googlelogo_color_272x92dp_\w{4,10}.webp/,
size: { width: 544, height: 184, type: 'webp' },
},
{
title: 'Remote without file extension',
id: '#ipsum',
regex: /^\/assets\/200x300_\w{4,10}/,
size: { width: 200, height: 300, type: 'jpg' },
},
{
title: 'Public images',
id: '#hero',
regex: /^\/assets\/hero_\w{4,10}.webp/,
size: { width: 768, height: 414, type: 'webp' },
},
{
title: 'Remote images',
id: '#bg-color',
regex: /^\/assets\/googlelogo_color_272x92dp_\w{4,10}.jpeg/,
size: { width: 544, height: 184, type: 'jpg' },
},
].forEach(({ title, id, regex, size }) => {
it(title, async () => {
const image = $(id);
expect(image.attr('src')).to.match(regex);
expect(image.attr('width')).to.equal(size.width.toString());
expect(image.attr('height')).to.equal(size.height.toString());
verifyImage(image.attr('src'), size);
const url = new URL(
'./fixtures/basic-image/node_modules/.astro/image' + image.attr('src'),
import.meta.url
);
expect(await fs.stat(url), 'transformed image was cached').to.not.be.undefined;
});
});
});
describe('SSG images with subpath - build', function () {
let fixture;
let $;
let html;
before(async () => {
fixture = await loadFixture({ root: './fixtures/basic-image/', base: '/docs' });
await fixture.build();
html = await fixture.readFile('/index.html');
$ = cheerio.load(html);
});
function verifyImage(pathname, expected) {
const url = new URL('./fixtures/basic-image/dist/' + pathname, import.meta.url);
const dist = fileURLToPath(url);
const result = sizeOf(dist);
expect(result).to.deep.equal(expected);
}
[
{
title: 'Local images',
id: '#social-jpg',
regex: /^\/docs\/assets\/social.\w{8}_\w{4,10}.jpg/,
size: { width: 506, height: 253, type: 'jpg' },
},
{
title: 'Filename with spaces',
id: '#spaces',
regex: /^\/docs\/assets\/introducing astro.\w{8}_\w{4,10}.webp/,
size: { width: 768, height: 414, type: 'webp' },
},
{
title: 'Inline imports',
id: '#inline',
regex: /^\/docs\/assets\/social.\w{8}_\w{4,10}.jpg/,
size: { width: 506, height: 253, type: 'jpg' },
},
{
title: 'Remote images',
id: '#google',
regex: /^\/docs\/assets\/googlelogo_color_272x92dp_\w{4,10}.webp/,
size: { width: 544, height: 184, type: 'webp' },
},
{
title: 'Remote without file extension',
id: '#ipsum',
regex: /^\/docs\/assets\/200x300_\w{4,10}/,
size: { width: 200, height: 300, type: 'jpg' },
},
{
title: 'Public images',
id: '#hero',
regex: /^\/docs\/assets\/hero_\w{4,10}.webp/,
size: { width: 768, height: 414, type: 'webp' },
},
{
title: 'Remote images',
id: '#bg-color',
regex: /^\/docs\/assets\/googlelogo_color_272x92dp_\w{4,10}.jpeg/,
size: { width: 544, height: 184, type: 'jpg' },
},
].forEach(({ title, id, regex, size }) => {
it(title, () => {
const image = $(id);
expect(image.attr('src')).to.match(regex);
expect(image.attr('width')).to.equal(size.width.toString());
expect(image.attr('height')).to.equal(size.height.toString());
verifyImage(image.attr('src').replace('/docs', ''), size);
});
});
});