import assert from 'assert'; import * as fs from 'fs'; import { parse } from 'acorn'; import { addLineNumbers, 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+$/gm, ''); delete warning.filename; delete warning.toString; return warning; } function checkCodeIsValid(code) { try { parse(code); } catch (err) { console.error(addLineNumbers(code)); throw new Error(err.message); } } describe('css', () => { fs.readdirSync('test/css/samples').forEach(dir => { if (dir[0] === '.') return; // add .solo to a sample directory name to only run that test const solo = /\.solo/.test(dir); const skip = /\.skip/.test(dir); if (solo && process.env.CI) { throw new Error('Forgot to remove `solo: true` from test'); } (solo ? it.only : skip ? it.skip : it)(dir, () => { const config = tryRequire(`./samples/${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: 'iife', name: 'SvelteComponent', onwarn: warning => { domWarnings.push(warning); } }) ); const ssr = svelte.compile( input, Object.assign(config, { format: 'iife', generate: 'ssr', name: 'SvelteComponent', onwarn: warning => { ssrWarnings.push(warning); } }) ); // check the code is valid checkCodeIsValid(dom.code); checkCodeIsValid(ssr.code); assert.equal(dom.css.toString(), ssr.css.toString()); assert.deepEqual( domWarnings.map(normalizeWarning), ssrWarnings.map(normalizeWarning) ); assert.deepEqual(domWarnings.map(normalizeWarning), expectedWarnings); fs.writeFileSync(`test/css/samples/${dir}/_actual.css`, dom.css); const expected = { html: read(`test/css/samples/${dir}/expected.html`), css: read(`test/css/samples/${dir}/expected.css`) }; assert.equal(dom.css.replace(/svelte(-ref)?-[a-z0-9]+/g, (m, $1) => $1 ? m : 'svelte-xyz'), expected.css); // verify that the right elements have scoping selectors if (expected.html !== null) { const window = env(); // dom try { const Component = eval( `(function () { ${dom.code}; return SvelteComponent; }())` ); const target = window.document.querySelector('main'); new Component({ target, data: config.data }); const html = target.innerHTML; fs.writeFileSync(`test/css/samples/${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.code); throw err; } // ssr try { const component = eval( `(function () { ${ssr.code}; return SvelteComponent; }())` ); assert.equal( normalizeHtml( window, component.render(config.data).html.replace(/svelte(-ref)?-[a-z0-9]+/g, (m, $1) => $1 ? m : 'svelte-xyz') ), normalizeHtml(window, expected.html) ); } catch (err) { console.log(ssr.code); throw err; } } }); }); }); function read(file) { try { return fs.readFileSync(file, 'utf-8'); } catch (err) { return null; } }