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core-image.test.js
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core-image.test.js
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import { expect } from 'chai';
import * as cheerio from 'cheerio';
import { basename } from 'node:path';
import { Writable } from 'node:stream';
import parseSrcset from 'parse-srcset';
import { removeDir } from '../dist/core/fs/index.js';
import { Logger } from '../dist/core/logger/core.js';
import testAdapter from './test-adapter.js';
import { testImageService } from './test-image-service.js';
import { loadFixture } from './test-utils.js';
describe('astro:image', () => {
/** @type {import('./test-utils').Fixture} */
let fixture;
describe('dev', () => {
/** @type {import('./test-utils').DevServer} */
let devServer;
/** @type {Array<{ type: any, level: 'error', message: string; }>} */
let logs = [];
before(async () => {
fixture = await loadFixture({
root: './fixtures/core-image/',
image: {
service: testImageService({ foo: 'bar' }),
domains: ['avatars.githubusercontent.com'],
},
});
devServer = await fixture.startDevServer({
logger: new Logger({
level: 'error',
dest: new Writable({
objectMode: true,
write(event, _, callback) {
logs.push(event);
callback();
},
}),
}),
});
});
after(async () => {
await devServer.stop();
});
describe('basics', () => {
let $;
before(async () => {
let res = await fixture.fetch('/');
let html = await res.text();
$ = cheerio.load(html);
});
it('Adds the <img> tag', () => {
let $img = $('#local img');
expect($img).to.have.a.lengthOf(1);
expect($img.attr('src').startsWith('/_image')).to.equal(true);
});
it('includes loading and decoding attributes', () => {
let $img = $('#local img');
expect(!!$img.attr('loading')).to.equal(true);
expect(!!$img.attr('decoding')).to.equal(true);
});
it('has width and height - no dimensions set', () => {
let $img = $('#local img');
expect($img.attr('width')).to.equal('207');
expect($img.attr('height')).to.equal('243');
});
it('has proper width and height - only width', () => {
let $img = $('#local-width img');
expect($img.attr('width')).to.equal('350');
expect($img.attr('height')).to.equal('411');
});
it('has proper width and height - only height', () => {
let $img = $('#local-height img');
expect($img.attr('width')).to.equal('170');
expect($img.attr('height')).to.equal('200');
});
it('has proper width and height - has both width and height', () => {
let $img = $('#local-both img');
expect($img.attr('width')).to.equal('300');
expect($img.attr('height')).to.equal('400');
});
it('includes the provided alt', () => {
let $img = $('#local img');
expect($img.attr('alt')).to.equal('a penguin');
});
it('middleware loads the file', async () => {
let $img = $('#local img');
let src = $img.attr('src');
let res = await fixture.fetch(src);
expect(res.status).to.equal(200);
});
it('returns proper content-type', async () => {
let $img = $('#local img');
let src = $img.attr('src');
let res = await fixture.fetch(src);
expect(res.headers.get('content-type')).to.equal('image/webp');
});
it('properly skip processing SVGs, but does not error', async () => {
let res = await fixture.fetch('/svgSupport');
let html = await res.text();
$ = cheerio.load(html);
let $img = $('img');
expect($img).to.have.a.lengthOf(1);
let src = $img.attr('src');
res = await fixture.fetch(src);
expect(res.status).to.equal(200);
});
it("errors when an ESM imported image's src is passed to Image/getImage instead of the full import", async () => {
logs.length = 0;
let res = await fixture.fetch('/error-image-src-passed');
await res.text();
expect(logs).to.have.a.lengthOf(1);
expect(logs[0].message).to.contain('must be an imported image or an URL');
});
it('supports images from outside the project', async () => {
let res = await fixture.fetch('/outsideProject');
let html = await res.text();
$ = cheerio.load(html);
let $img = $('img');
expect($img).to.have.a.lengthOf(2);
expect(
$img.toArray().every((img) => {
return (
img.attribs['src'].startsWith('/@fs/') ||
img.attribs['src'].startsWith('/_image?href=%2F%40fs%2F')
);
})
).to.be.true;
});
it('supports inlined imports', async () => {
let res = await fixture.fetch('/inlineImport');
let html = await res.text();
$ = cheerio.load(html);
let $img = $('img');
expect($img).to.have.a.lengthOf(1);
let src = $img.attr('src');
res = await fixture.fetch(src);
expect(res.status).to.equal(200);
});
it('supports uppercased imports', async () => {
let res = await fixture.fetch('/uppercase');
let html = await res.text();
$ = cheerio.load(html);
let $img = $('img');
expect($img).to.have.a.lengthOf(1);
let src = $img.attr('src');
let loading = $img.attr('loading');
res = await fixture.fetch(src);
expect(res.status).to.equal(200);
expect(loading).to.not.be.undefined;
});
it('supports avif', async () => {
let res = await fixture.fetch('/avif');
let html = await res.text();
$ = cheerio.load(html);
let $img = $('img');
expect($img).to.have.a.lengthOf(1);
let src = $img.attr('src');
res = await fixture.fetch(src);
expect(res.status).to.equal(200);
expect(res.headers.get('content-type')).to.equal('image/avif');
});
it('has a working Picture component', async () => {
let res = await fixture.fetch('/picturecomponent');
let html = await res.text();
$ = cheerio.load(html);
// Fallback format
let $img = $('#picture-fallback img');
expect($img).to.have.a.lengthOf(1);
const imageURL = new URL($img.attr('src'), 'http://localhost');
expect(imageURL.searchParams.get('f')).to.equal('jpeg');
expect($img.attr('fallbackformat')).to.be.undefined;
// Densities
$img = $('#picture-density-2-format img');
let $picture = $('#picture-density-2-format picture');
let $source = $('#picture-density-2-format source');
expect($img).to.have.a.lengthOf(1);
expect($picture).to.have.a.lengthOf(1);
expect($source).to.have.a.lengthOf(2);
const srcset = parseSrcset($source.attr('srcset'));
expect(srcset.every((src) => src.url.startsWith('/_image'))).to.equal(true);
expect(srcset.map((src) => src.d)).to.deep.equal([undefined, 2]);
// Widths
$img = $('#picture-widths img');
$picture = $('#picture-widths picture');
$source = $('#picture-widths source');
expect($img).to.have.a.lengthOf(1);
expect($picture).to.have.a.lengthOf(1);
expect($source).to.have.a.lengthOf(1);
expect($source.attr('sizes')).to.equal(
'(max-width: 448px) 400px, (max-width: 810px) 750px, 1050px'
);
const srcset2 = parseSrcset($source.attr('srcset'));
expect(srcset2.every((src) => src.url.startsWith('/_image'))).to.equal(true);
expect(srcset2.map((src) => src.w)).to.deep.equal([207]);
});
it('properly deduplicate srcset images', async () => {
let res = await fixture.fetch('/srcset');
let html = await res.text();
$ = cheerio.load(html);
let localImage = $('#local-3-images img');
expect(
new Set([
...parseSrcset(localImage.attr('srcset')).map((src) => src.url),
localImage.attr('src'),
]).size
).to.equal(3);
let remoteImage = $('#remote-3-images img');
expect(
new Set([
...parseSrcset(remoteImage.attr('srcset')).map((src) => src.url),
remoteImage.attr('src'),
]).size
).to.equal(3);
let local1x = $('#local-1x img');
expect(
new Set([
...parseSrcset(local1x.attr('srcset')).map((src) => src.url),
local1x.attr('src'),
]).size
).to.equal(1);
let remote1x = $('#remote-1x img');
expect(
new Set([
...parseSrcset(remote1x.attr('srcset')).map((src) => src.url),
remote1x.attr('src'),
]).size
).to.equal(1);
let local2Widths = $('#local-2-widths img');
expect(
new Set([
...parseSrcset(local2Widths.attr('srcset')).map((src) => src.url),
local2Widths.attr('src'),
]).size
).to.equal(2);
let remote2Widths = $('#remote-2-widths img');
expect(
new Set([
...parseSrcset(remote2Widths.attr('srcset')).map((src) => src.url),
remote2Widths.attr('src'),
]).size
).to.equal(2);
});
});
describe('vite-isms', () => {
/**
* @type {cheerio.CheerioAPI}
*/
let $;
before(async () => {
let res = await fixture.fetch('/vite');
let html = await res.text();
$ = cheerio.load(html);
});
it('support ?url imports', () => {
let $url = $('#url');
expect($url.text()).to.equal('string');
});
it('support ?raw imports', () => {
let $raw = $('#raw');
expect($raw.text()).to.equal('string');
});
it('support glob import as raw', () => {
let $raw = $('#glob-import');
expect($raw.text()).to.equal('string');
});
});
describe('remote', () => {
describe('working', () => {
let $;
before(async () => {
let res = await fixture.fetch('/');
let html = await res.text();
$ = cheerio.load(html);
});
it('has proper link and works', async () => {
let $img = $('#remote img');
let src = $img.attr('src');
expect(src.startsWith('/_image?')).to.be.true;
const imageRequest = await fixture.fetch(src);
expect(imageRequest.status).to.equal(200);
});
it('includes the provided alt', async () => {
let $img = $('#remote img');
expect($img.attr('alt')).to.equal('fred');
});
it('includes loading and decoding attributes', () => {
let $img = $('#remote img');
expect(!!$img.attr('loading')).to.equal(true);
expect(!!$img.attr('decoding')).to.equal(true);
});
it('includes width and height attributes', () => {
let $img = $('#remote img');
expect(!!$img.attr('width')).to.equal(true);
expect(!!$img.attr('height')).to.equal(true);
});
it('support data: URI', () => {
let $img = $('#data-uri img');
expect($img.attr('src')).to.equal(
'data:image/png;base64,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'
);
expect(!!$img.attr('width')).to.equal(true);
expect(!!$img.attr('height')).to.equal(true);
});
it('support images from public', () => {
let $img = $('#public img');
expect($img.attr('src')).to.equal('/penguin3.jpg');
expect(!!$img.attr('width')).to.equal(true);
expect(!!$img.attr('height')).to.equal(true);
});
});
it('error if no width and height', async () => {
logs.length = 0;
let res = await fixture.fetch('/remote-error-no-dimensions');
await res.text();
expect(logs).to.have.a.lengthOf(1);
expect(logs[0].message).to.contain('Missing width and height attributes');
});
it('error if no height', async () => {
logs.length = 0;
let res = await fixture.fetch('/remote-error-no-height');
await res.text();
expect(logs).to.have.a.lengthOf(1);
expect(logs[0].message).to.contain('Missing height attribute');
});
it('supports aliases', async () => {
let res = await fixture.fetch('/alias');
let html = await res.text();
let $ = cheerio.load(html);
let $img = $('img');
expect($img).to.have.a.lengthOf(1);
expect($img.attr('src').includes('penguin1.jpg')).to.equal(true);
});
});
describe('markdown', () => {
let $;
before(async () => {
let res = await fixture.fetch('/post');
let html = await res.text();
$ = cheerio.load(html);
});
it('Adds the <img> tag', () => {
let $img = $('img');
expect($img).to.have.a.lengthOf(2);
// Verbose test for the full URL to make sure the image went through the full pipeline
expect(
$img.attr('src').startsWith('/_image') && $img.attr('src').endsWith('f=webp')
).to.equal(true);
});
it('has width and height attributes', () => {
let $img = $('img');
expect(!!$img.attr('width')).to.equal(true);
expect(!!$img.attr('height')).to.equal(true);
});
it('Supports aliased paths', async () => {
let res = await fixture.fetch('/aliasMarkdown');
let html = await res.text();
$ = cheerio.load(html);
let $img = $('img');
expect($img.attr('src').startsWith('/_image')).to.equal(true);
});
it('Supports special characters in file name', async () => {
let res = await fixture.fetch('/specialChars');
let html = await res.text();
$ = cheerio.load(html);
let $img = $('img');
expect($img.attr('src').startsWith('/_image')).to.equal(true);
});
it('properly handles remote images', async () => {
let res = await fixture.fetch('/httpImage');
let html = await res.text();
$ = cheerio.load(html);
let $img = $('img');
expect($img).to.have.a.lengthOf(2);
const remoteUrls = ['https://example.com/image.png', '/image.png'];
$img.each((index, element) => {
expect(element.attribs['src']).to.equal(remoteUrls[index]);
});
});
});
describe('getImage', () => {
let $;
before(async () => {
let res = await fixture.fetch('/get-image');
let html = await res.text();
$ = cheerio.load(html);
});
it('Adds the <img> tag', () => {
let $img = $('img');
expect($img).to.have.a.lengthOf(1);
expect($img.attr('src').startsWith('/_image')).to.equal(true);
});
it('includes the provided alt', () => {
let $img = $('img');
expect($img.attr('alt')).to.equal('a penguin');
});
});
describe('content collections', () => {
let $;
before(async () => {
let res = await fixture.fetch('/blog/one');
let html = await res.text();
$ = cheerio.load(html);
});
it('Adds the <img> tags', () => {
let $img = $('img');
expect($img).to.have.a.lengthOf(7);
});
it('has proper source for directly used image', () => {
let $img = $('#direct-image img');
expect($img.attr('src').startsWith('/')).to.equal(true);
});
it('has proper source for refined image', () => {
let $img = $('#refined-image img');
expect($img.attr('src').startsWith('/')).to.equal(true);
});
it('has proper sources for array of images', () => {
let $img = $('#array-of-images img');
const imgsSrcs = [];
$img.each((i, img) => imgsSrcs.push(img.attribs['src']));
expect($img).to.have.a.lengthOf(2);
expect(imgsSrcs.every((img) => img.startsWith('/'))).to.be.true;
});
it('has proper attributes for optimized image through getImage', () => {
let $img = $('#optimized-image-get-image img');
expect($img.attr('src').startsWith('/_image')).to.equal(true);
expect($img.attr('width')).to.equal('207');
expect($img.attr('height')).to.equal('243');
});
it('has proper attributes for optimized image through Image component', () => {
let $img = $('#optimized-image-component img');
expect($img.attr('src').startsWith('/_image')).to.equal(true);
expect($img.attr('width')).to.equal('207');
expect($img.attr('height')).to.equal('243');
expect($img.attr('alt')).to.equal('A penguin!');
});
it('properly handles nested images', () => {
let $img = $('#nested-image img');
expect($img.attr('src').startsWith('/')).to.equal(true);
});
});
describe('regular img tag', () => {
/** @type {ReturnType<import('cheerio')['load']>} */
let $;
before(async () => {
let res = await fixture.fetch('/regular-img');
let html = await res.text();
$ = cheerio.load(html);
});
it('does not have a file url', async () => {
expect($('img').attr('src').startsWith('file://')).to.equal(false);
});
it('includes /src in the path', async () => {
expect($('img').attr('src').includes('/src')).to.equal(true);
});
});
describe('custom service', () => {
it('custom service implements getHTMLAttributes', async () => {
const response = await fixture.fetch('/');
const html = await response.text();
const $ = cheerio.load(html);
expect($('#local img').attr('data-service')).to.equal('my-custom-service');
});
it('custom service works in Markdown', async () => {
const response = await fixture.fetch('/post');
const html = await response.text();
const $ = cheerio.load(html);
expect($('img').attr('data-service')).to.equal('my-custom-service');
});
it('gets service config', async () => {
const response = await fixture.fetch('/');
const html = await response.text();
const $ = cheerio.load(html);
expect($('#local img').attr('data-service-config')).to.equal('bar');
});
});
describe('custom endpoint', async () => {
/** @type {import('./test-utils').DevServer} */
let customEndpointDevServer;
/** @type {import('./test-utils.js').Fixture} */
let customEndpointFixture;
before(async () => {
customEndpointFixture = await loadFixture({
root: './fixtures/core-image/',
image: {
endpoint: './src/custom-endpoint.ts',
service: testImageService({ foo: 'bar' }),
domains: ['avatars.githubusercontent.com'],
},
});
customEndpointDevServer = await customEndpointFixture.startDevServer({
server: { port: 4324 },
});
});
it('custom endpoint works', async () => {
const response = await customEndpointFixture.fetch('/');
const html = await response.text();
const $ = cheerio.load(html);
const src = $('#local img').attr('src');
let res = await customEndpointFixture.fetch(src);
expect(res.status).to.equal(200);
expect(await res.text()).to.equal(
"You fool! I'm not a image endpoint at all, I just return this!"
);
});
after(async () => {
await customEndpointDevServer.stop();
});
});
});
describe('proper errors', () => {
/** @type {import('./test-utils').DevServer} */
let devServer;
/** @type {Array<{ type: any, level: 'error', message: string; }>} */
let logs = [];
before(async () => {
fixture = await loadFixture({
root: './fixtures/core-image-errors/',
image: {
service: testImageService(),
},
});
devServer = await fixture.startDevServer({
logger: new Logger({
level: 'error',
dest: new Writable({
objectMode: true,
write(event, _, callback) {
logs.push(event);
callback();
},
}),
}),
});
});
after(async () => {
await devServer.stop();
});
it("properly error when getImage's first parameter isn't filled", async () => {
logs.length = 0;
let res = await fixture.fetch('/get-image-empty');
await res.text();
expect(logs).to.have.a.lengthOf(1);
expect(logs[0].message).to.contain('Expected getImage() parameter');
});
it('properly error when src is undefined', async () => {
logs.length = 0;
let res = await fixture.fetch('/get-image-undefined');
await res.text();
expect(logs).to.have.a.lengthOf(1);
expect(logs[0].message).to.contain('Expected `src` property');
});
it('properly error image in Markdown frontmatter is not found', async () => {
logs.length = 0;
let res = await fixture.fetch('/blog/one');
await res.text();
expect(logs).to.have.a.lengthOf(1);
expect(logs[0].message).to.contain('does not exist. Is the path correct?');
});
it('properly error image in Markdown content is not found', async () => {
logs.length = 0;
let res = await fixture.fetch('/post');
await res.text();
expect(logs).to.have.a.lengthOf(1);
expect(logs[0].message).to.contain('Could not find requested image');
});
});
describe('support base option correctly', () => {
before(async () => {
fixture = await loadFixture({
root: './fixtures/core-image-base/',
image: {
service: testImageService(),
},
base: '/blog',
});
await fixture.build();
});
it('has base path prefix when using the Image component', async () => {
const html = await fixture.readFile('/index.html');
const $ = cheerio.load(html);
const src = $('#local img').attr('src');
expect(src.length).to.be.greaterThan(0);
expect(src.startsWith('/blog')).to.be.true;
});
it('has base path prefix when using getImage', async () => {
const html = await fixture.readFile('/get-image/index.html');
const $ = cheerio.load(html);
const src = $('img').attr('src');
expect(src.length).to.be.greaterThan(0);
expect(src.startsWith('/blog')).to.be.true;
});
it('has base path prefix when using image directly', async () => {
const html = await fixture.readFile('/direct/index.html');
const $ = cheerio.load(html);
const src = $('img').attr('src');
expect(src.length).to.be.greaterThan(0);
expect(src.startsWith('/blog')).to.be.true;
});
it('has base path prefix in Markdown', async () => {
const html = await fixture.readFile('/post/index.html');
const $ = cheerio.load(html);
const src = $('img').attr('src');
expect(src.length).to.be.greaterThan(0);
expect(src.startsWith('/blog')).to.be.true;
});
it('has base path prefix in Content Collection frontmatter', async () => {
const html = await fixture.readFile('/blog/one/index.html');
const $ = cheerio.load(html);
const src = $('img').attr('src');
expect(src.length).to.be.greaterThan(0);
expect(src.startsWith('/blog')).to.be.true;
});
it('has base path prefix in SSR', async () => {
const fixtureWithBase = await loadFixture({
root: './fixtures/core-image-ssr/',
output: 'server',
adapter: testAdapter(),
image: {
service: testImageService(),
},
base: '/blog',
});
await fixtureWithBase.build();
const app = await fixtureWithBase.loadTestAdapterApp();
const request = new Request('http://example.com/blog/');
const response = await app.render(request);
expect(response.status).to.equal(200);
const html = await response.text();
const $ = cheerio.load(html);
const src = $('#local img').attr('src');
expect(src.startsWith('/blog')).to.be.true;
});
});
describe('build ssg', () => {
before(async () => {
fixture = await loadFixture({
root: './fixtures/core-image-ssg/',
image: {
service: testImageService(),
domains: ['astro.build', 'avatars.githubusercontent.com'],
},
});
// Remove cache directory
removeDir(new URL('./fixtures/core-image-ssg/node_modules/.astro', import.meta.url));
await fixture.build();
});
it('writes out images to dist folder', async () => {
const html = await fixture.readFile('/index.html');
const $ = cheerio.load(html);
const src = $('#local img').attr('src');
expect(src.length).to.be.greaterThan(0);
const data = await fixture.readFile(src, null);
expect(data).to.be.an.instanceOf(Buffer);
});
it('writes out allowed remote images', async () => {
const html = await fixture.readFile('/remote/index.html');
const $ = cheerio.load(html);
const src = $('#remote img').attr('src');
expect(src.length).to.be.greaterThan(0);
const data = await fixture.readFile(src, null);
expect(data).to.be.an.instanceOf(Buffer);
});
it('writes out images to dist folder with proper extension if no format was passed', async () => {
const html = await fixture.readFile('/index.html');
const $ = cheerio.load(html);
const src = $('#local img').attr('src');
expect(src.endsWith('.webp')).to.be.true;
});
it('getImage() usage also written', async () => {
const html = await fixture.readFile('/get-image/index.html');
const $ = cheerio.load(html);
let $img = $('img');
// <img> tag
expect($img).to.have.a.lengthOf(1);
expect($img.attr('alt')).to.equal('a penguin');
// image itself
const src = $img.attr('src');
const data = await fixture.readFile(src, null);
expect(data).to.be.an.instanceOf(Buffer);
});
it('Picture component images are written', async () => {
const html = await fixture.readFile('/picturecomponent/index.html');
const $ = cheerio.load(html);
let $img = $('img');
let $source = $('source');
expect($img).to.have.a.lengthOf(1);
expect($source).to.have.a.lengthOf(2);
const srcset = parseSrcset($source.attr('srcset'));
let hasExistingSrc = await Promise.all(
srcset.map(async (src) => {
const data = await fixture.readFile(src.url, null);
return data instanceof Buffer;
})
);
expect(hasExistingSrc.every((src) => src === true)).to.deep.equal(true);
});
it('markdown images are written', async () => {
const html = await fixture.readFile('/post/index.html');
const $ = cheerio.load(html);
let $img = $('img');
// <img> tag
expect($img).to.have.a.lengthOf(1);
expect($img.attr('alt')).to.equal('My article cover');
// image itself
const src = $img.attr('src');
const data = await fixture.readFile(src, null);
expect(data).to.be.an.instanceOf(Buffer);
});
it('aliased images are written', async () => {
const html = await fixture.readFile('/alias/index.html');
const $ = cheerio.load(html);
let $img = $('img');
// <img> tag
expect($img).to.have.a.lengthOf(1);
expect($img.attr('alt')).to.equal('A penguin!');
// image itself
const src = $img.attr('src');
const data = await fixture.readFile(src, null);
expect(data).to.be.an.instanceOf(Buffer);
});
it('aliased images in Markdown are written', async () => {
const html = await fixture.readFile('/aliasMarkdown/index.html');
const $ = cheerio.load(html);
let $img = $('img');
// <img> tag
expect($img).to.have.a.lengthOf(1);
expect($img.attr('alt')).to.equal('A penguin');
// image itself
const src = $img.attr('src');
const data = await fixture.readFile(src, null);
expect(data).to.be.an.instanceOf(Buffer);
});
it('output files for content collections images', async () => {
const html = await fixture.readFile('/blog/one/index.html');
const $ = cheerio.load(html);
let $img = $('img');
expect($img).to.have.a.lengthOf(2);
const srcdirect = $('#direct-image img').attr('src');
const datadirect = await fixture.readFile(srcdirect, null);
expect(datadirect).to.be.an.instanceOf(Buffer);
const srcnested = $('#nested-image img').attr('src');
const datanested = await fixture.readFile(srcnested, null);
expect(datanested).to.be.an.instanceOf(Buffer);
});
it('quality attribute produces a different file', async () => {
const html = await fixture.readFile('/quality/index.html');
const $ = cheerio.load(html);
expect($('#no-quality img').attr('src')).to.not.equal($('#quality-low img').attr('src'));
});
it('quality can be a number between 0-100', async () => {
const html = await fixture.readFile('/quality/index.html');
const $ = cheerio.load(html);
expect($('#no-quality img').attr('src')).to.not.equal($('#quality-num img').attr('src'));
});
it('format attribute produces a different file', async () => {
const html = await fixture.readFile('/format/index.html');
const $ = cheerio.load(html);
expect($('#no-format img').attr('src')).to.not.equal($('#format-avif img').attr('src'));
});
it('has cache entries', async () => {
const generatedImages = (await fixture.glob('_astro/**/*.webp'))
.map((path) => basename(path))
.sort();
const cachedImages = [
...(await fixture.glob('../node_modules/.astro/assets/**/*.webp')),
...(await fixture.glob('../node_modules/.astro/assets/**/*.json')),
]
.map((path) => basename(path).replace('.webp.json', '.webp'))
.sort();
expect(generatedImages).to.deep.equal(cachedImages);
});
it('uses cache entries', async () => {
const logs = [];
const logging = {
dest: {
write(chunk) {
logs.push(chunk);
},
},
};
await fixture.build({ logging });
const generatingImageIndex = logs.findIndex((logLine) =>
logLine.message.includes('generating optimized images')
);
const relevantLogs = logs.slice(generatingImageIndex + 1, -1);
const isReusingCache = relevantLogs.every((logLine) =>
logLine.message.includes('(reused cache entry)')
);
expect(isReusingCache).to.be.true;
});
it('client images are written to build', async () => {
const html = await fixture.readFile('/client/index.html');
const $ = cheerio.load(html);
let $script = $('script');
// Find image
const regex = /src:"([^"]*)/gm;
const imageSrc = regex.exec($script.html())[1];
const data = await fixture.readFile(imageSrc, null);
expect(data).to.be.an.instanceOf(Buffer);
});
it('client images srcset parsed correctly', async () => {
const html = await fixture.readFile('/srcset/index.html');
const $ = cheerio.load(html);
const srcset = $('#local-2-widths-with-spaces img').attr('srcset');
// Find image
const regex = /^(.+?) [0-9]+[wx]$/gm;
const imageSrcset = regex.exec(srcset)[1];
expect(imageSrcset).to.not.contain(' ');
});
it('supports images with encoded characters in url', async () => {
const html = await fixture.readFile('/index.html');
const $ = cheerio.load(html);
const img = $('#encoded-chars img');
const src = img.attr('src');
const data = await fixture.readFile(src);
expect(data).to.not.be.undefined;
});
describe('custom service in build', () => {
it('uses configured hashes properties', async () => {
await fixture.build();
const html = await fixture.readFile('/imageDeduplication/index.html');
const $ = cheerio.load(html);
const allTheSamePath = $('#all-the-same img')
.map((_, el) => $(el).attr('src'))
.get();
expect(allTheSamePath.every((path) => path === allTheSamePath[0])).to.equal(true);
const useCustomHashProperty = $('#use-data img')
.map((_, el) => $(el).attr('src'))
.get();
expect(useCustomHashProperty.every((path) => path === useCustomHashProperty[0])).to.equal(
false
);
expect(useCustomHashProperty[1]).to.not.equal(allTheSamePath[0]);
});
});
});