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svelte/test/css/index.js

153 lines
3.8 KiB

import * as assert from 'assert';
import * as fs from 'fs';
import { env, normalizeHtml, svelte } from '../helpers.js';
function tryRequire(file) {
try {
const mod = require(file);
return mod.default || mod;
} catch (err) {
if (err.code !== 'MODULE_NOT_FOUND') throw err;
return null;
}
}
function normalizeWarning(warning) {
warning.frame = warning.frame
.replace(/^\n/, '')
.replace(/^\t+/gm, '')
.replace(/\s+$/gm, '');
delete warning.filename;
delete warning.toString;
return warning;
}
function create(code) {
const fn = new Function('module', 'exports', 'require', code);
const module = { exports: {} };
fn(module, module.exports, id => {
if (id === 'svelte') return require('../../index.js');
if (id.startsWith('svelte/')) return require(id.replace('svelte', '../../'));
return require(id);
});
return module.exports.default;
}
describe('css', () => {
fs.readdirSync('test/css/samples').forEach(dir => {
if (dir[0] === '.') return;
// add .solo to a sample directory name to only run that test
const solo = /\.solo/.test(dir);
const skip = /\.skip/.test(dir);
if (solo && process.env.CI) {
throw new Error('Forgot to remove `solo: true` from test');
}
(solo ? it.only : skip ? it.skip : it)(dir, () => {
const config = tryRequire(`./samples/${dir}/_config.js`) || {};
const input = fs
.readFileSync(`test/css/samples/${dir}/input.html`, 'utf-8')
.replace(/\s+$/, '');
const expectedWarnings = (config.warnings || []).map(normalizeWarning);
const domWarnings = [];
const ssrWarnings = [];
const dom = svelte.compile(
input,
Object.assign(config, {
format: 'cjs',
name: 'SvelteComponent',
onwarn: warning => {
domWarnings.push(warning);
}
})
);
const ssr = svelte.compile(
input,
Object.assign(config, {
format: 'cjs',
generate: 'ssr',
name: 'SvelteComponent',
onwarn: warning => {
ssrWarnings.push(warning);
}
})
);
assert.equal(dom.css.code, ssr.css.code);
assert.deepEqual(
domWarnings.map(normalizeWarning),
ssrWarnings.map(normalizeWarning)
);
assert.deepEqual(domWarnings.map(normalizeWarning), expectedWarnings);
fs.writeFileSync(`test/css/samples/${dir}/_actual.css`, dom.css.code);
const expected = {
html: read(`test/css/samples/${dir}/expected.html`),
css: read(`test/css/samples/${dir}/expected.css`)
};
assert.equal(dom.css.code.replace(/svelte(-ref)?-[a-z0-9]+/g, (m, $1) => $1 ? m : 'svelte-xyz'), expected.css);
// we do this here, rather than in the expected.html !== null
// block, to verify that valid code was generated
const ClientComponent = create(dom.js.code);
const ServerComponent = create(ssr.js.code);
// verify that the right elements have scoping selectors
if (expected.html !== null) {
const window = env();
// dom
try {
const target = window.document.querySelector('main');
new ClientComponent({ target, props: config.props });
const html = target.innerHTML;
fs.writeFileSync(`test/css/samples/${dir}/_actual.html`, html);
assert.equal(
normalizeHtml(window, html.replace(/svelte(-ref)?-[a-z0-9]+/g, (m, $1) => $1 ? m : 'svelte-xyz')),
normalizeHtml(window, expected.html)
);
window.document.head.innerHTML = ''; // remove added styles
} catch (err) {
console.log(dom.js.code);
throw err;
}
// ssr
try {
assert.equal(
normalizeHtml(
window,
ServerComponent.render(config.props).html.replace(/svelte(-ref)?-[a-z0-9]+/g, (m, $1) => $1 ? m : 'svelte-xyz')
),
normalizeHtml(window, expected.html)
);
} catch (err) {
console.log(ssr.js.code);
throw err;
}
}
});
});
});
function read(file) {
try {
return fs.readFileSync(file, 'utf-8');
} catch (err) {
return null;
}
}