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astro/test/astro-styles-ssr.test.js

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import { suite } from 'uvu';
import * as assert from 'uvu/assert';
import { createRuntime } from '../lib/runtime.js';
import { loadConfig } from '../lib/config.js';
import { doc } from './test-utils.js';
const StylesSSR = suite('Styles SSR');
let runtime;
StylesSSR.before(async () => {
const astroConfig = await loadConfig(new URL('./fixtures/astro-styles-ssr', import.meta.url).pathname);
const logging = {
level: 'error',
dest: process.stderr,
};
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runtime = await createRuntime(astroConfig, { logging });
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});
StylesSSR.after(async () => {
(await runtime) && runtime.shutdown();
});
StylesSSR('Has <link> tags', async () => {
const MUST_HAVE_LINK_TAGS = ['/_astro/components/SvelteScoped.svelte.css', '/_astro/components/VueCSS.vue.css', '/_astro/components/ReactCSS.css'];
const result = await runtime.load('/');
const $ = doc(result.contents);
for (const href of MUST_HAVE_LINK_TAGS) {
const el = $(`link[href="${href}"]`);
assert.equal(el.length, 1);
}
});
StylesSSR('Has correct CSS classes', async () => {
const MUST_HAVE_CSS_CLASSES = ['react-title', 'vue-title', 'svelte-title'];
const result = await runtime.load('/');
const $ = doc(result.contents);
for (const className of MUST_HAVE_CSS_CLASSES) {
const el = $(`.${className}`);
assert.equal(el.length, 1);
}
});
StylesSSR('CSS Module support in .astro', async () => {
const result = await runtime.load('/');
const $ = doc(result.contents);
let scopedClass;
// test 1: <style> tag in <head> is transformed
const css = $('style')
.html()
.replace(/\.astro-[A-Za-z0-9-]+/, (match) => {
scopedClass = match;
return match;
}); // remove class hash (should be deterministic / the same every time, but even still dont cause this test to flake)
assert.equal(css, `.wrapper${scopedClass}{margin-left:auto;margin-right:auto;max-width:1200px}`);
// test 2: element received .astro-XXXXXX class (this selector will succeed if transformed correctly)
const wrapper = $(`.wrapper${scopedClass}`);
assert.equal(wrapper.length, 1);
});
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StylesSSR.run();