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svelte/test/css/index.js

159 lines
4.1 KiB

import * as assert from 'assert';
import * as fs from 'fs';
import { env, svelte, setupHtmlEqual, shouldUpdateExpected } from '../helpers.js';
function try_require(file) {
try {
const mod = require(file);
return mod.default || mod;
} catch (err) {
if (err.code !== 'MODULE_NOT_FOUND') throw err;
return null;
}
}
function normalize_warning(warning) {
warning.frame = warning.frame
.replace(/^\n/, '')
.replace(/^\t+/gm, '')
.replace(/\s+$/gm, '');
delete warning.filename;
delete warning.toString;
return warning;
}
function create(code) {
const fn = new Function('module', 'exports', 'require', code);
const module = { exports: {} };
fn(module, module.exports, id => {
if (id === 'svelte') return require('../../index.js');
if (id.startsWith('svelte/')) return require(id.replace('svelte', '../../'));
return require(id);
});
return module.exports.default;
}
describe('css', () => {
before(() => {
setupHtmlEqual();
});
fs.readdirSync(`${__dirname}/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 = try_require(`./samples/${dir}/_config.js`) || {};
const input = fs
.readFileSync(`${__dirname}/samples/${dir}/input.svelte`, 'utf-8')
.replace(/\s+$/, '');
const expected_warnings = (config.warnings || []).map(normalize_warning);
const dom = svelte.compile(
input,
Object.assign(config.compileOptions || {}, { format: 'cjs' })
);
const ssr = svelte.compile(
input,
Object.assign(config.compileOptions || {}, { format: 'cjs', generate: 'ssr' })
);
assert.equal(dom.css.code, ssr.css.code);
const dom_warnings = dom.warnings.map(normalize_warning);
const ssr_warnings = ssr.warnings.map(normalize_warning);
assert.deepEqual(dom_warnings, ssr_warnings);
assert.deepEqual(dom_warnings.map(normalize_warning), expected_warnings);
fs.writeFileSync(`${__dirname}/samples/${dir}/_actual.css`, dom.css.code);
const expected = {
html: read(`${__dirname}/samples/${dir}/expected.html`),
css: read(`${__dirname}/samples/${dir}/expected.css`)
};
const actual_css = dom.css.code.replace(/svelte(-ref)?-[a-z0-9]+/g, (m, $1) => $1 ? m : 'svelte-xyz');
try {
assert.equal(actual_css, expected.css);
} catch (error) {
if (shouldUpdateExpected()) {
fs.writeFileSync(`${__dirname}/samples/${dir}/expected.css`, actual_css);
console.log(`Updated ${dir}/expected.css.`);
} else {
throw error;
}
}
let ClientComponent;
let ServerComponent;
// we do this here, rather than in the expected.html !== null
// block, to verify that valid code was generated
try {
ClientComponent = create(dom.js.code);
} catch (err) {
console.log(dom.js.code);
throw err;
}
try {
ServerComponent = create(ssr.js.code);
} catch (err) {
console.log(dom.js.code);
throw err;
}
// verify that the right elements have scoping selectors
if (expected.html !== null) {
const window = env();
// dom
try {
const target = window.document.querySelector('main');
new ClientComponent({ target, props: config.props });
const html = target.innerHTML;
fs.writeFileSync(`${__dirname}/samples/${dir}/_actual.html`, html);
const actual_html = html.replace(/svelte(-ref)?-[a-z0-9]+/g, (m, $1) => $1 ? m : 'svelte-xyz');
assert.htmlEqual(actual_html, expected.html);
window.document.head.innerHTML = ''; // remove added styles
} catch (err) {
console.log(dom.js.code);
throw err;
}
// ssr
try {
const actual_ssr = ServerComponent.render(config.props).html.replace(/svelte(-ref)?-[a-z0-9]+/g, (m, $1) => $1 ? m : 'svelte-xyz');
assert.htmlEqual(actual_ssr, 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;
}
}