import * as assert from 'assert'; import * as path from 'path'; import * as fs from 'fs'; import { showOutput, loadConfig, loadSvelte, env, setupHtmlEqual, shouldUpdateExpected } from '../helpers.js'; let compileOptions = null; const sveltePath = process.cwd(); describe('hydration', () => { before(() => { const svelte = loadSvelte(); require.extensions['.svelte'] = function(module, filename) { const options = Object.assign( { filename, hydratable: true, format: 'cjs', sveltePath }, compileOptions ); const { js } = svelte.compile(fs.readFileSync(filename, 'utf-8'), options); return module._compile(js.code, filename); }; return setupHtmlEqual(); }); function runTest(dir) { if (dir[0] === '.') return; const config = loadConfig(`./hydration/samples/${dir}/_config.js`); const solo = config.solo || /\.solo/.test(dir); if (solo && process.env.CI) { throw new Error('Forgot to remove `solo: true` from test'); } (config.skip ? it.skip : solo ? it.only : it)(dir, () => { const cwd = path.resolve(`${__dirname}/samples/${dir}`); compileOptions = config.compileOptions || {}; const window = env(); try { global.window = window; let SvelteComponent; try { SvelteComponent = require(`${cwd}/main.svelte`).default; } catch (err) { throw err; } const target = window.document.body; const head = window.document.head; target.innerHTML = fs.readFileSync(`${cwd}/_before.html`, 'utf-8'); let before_head; try { before_head = fs.readFileSync(`${cwd}/_before_head.html`, 'utf-8'); head.innerHTML = before_head; } catch (err) {} const snapshot = config.snapshot ? config.snapshot(target) : {}; const component = new SvelteComponent({ target, hydrate: true, props: config.props }); try { assert.htmlEqual(target.innerHTML, fs.readFileSync(`${cwd}/_after.html`, 'utf-8')); } catch (error) { if (shouldUpdateExpected()) { fs.writeFileSync(`${cwd}/_after.html`, target.innerHTML); console.log(`Updated ${cwd}/_after.html.`); } else { throw error; } } if (before_head) { try { assert.htmlEqual(head.innerHTML, fs.readFileSync(`${cwd}/_after_head.html`, 'utf-8')); } catch (error) { if (shouldUpdateExpected()) { fs.writeFileSync(`${cwd}/_after_head.html`, head.innerHTML); console.log(`Updated ${cwd}/_after_head.html.`); } else { throw error; } } } if (config.test) { config.test(assert, target, snapshot, component, window); } else { component.$destroy(); assert.equal(target.innerHTML, ''); } } catch (err) { showOutput(cwd, { hydratable: true }); throw err; } if (config.show) showOutput(cwd, { hydratable: true }); }); } fs.readdirSync(`${__dirname}/samples`).forEach(dir => { runTest(dir, null); }); });