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svelte/test/server-side-rendering/index.js

214 lines
5.1 KiB

import * as assert from "assert";
import * as fs from "fs";
import * as path from "path";
import * as glob from 'tiny-glob/sync.js';
import {
showOutput,
loadConfig,
loadSvelte,
setupHtmlEqual,
tryToLoadJson,
shouldUpdateExpected,
mkdirp
} from "../helpers.js";
function tryToReadFile(file) {
try {
return fs.readFileSync(file, "utf-8");
} catch (err) {
if (err.code !== "ENOENT") throw err;
return null;
}
}
const sveltePath = process.cwd().split('\\').join('/');
let compile = null;
describe("ssr", () => {
before(() => {
require("../../register")({
extensions: ['.svelte', '.html'],
sveltePath
});
compile = loadSvelte(true).compile;
return setupHtmlEqual();
});
fs.readdirSync(`${__dirname}/samples`).forEach(dir => {
if (dir[0] === ".") return;
// add .solo to a sample directory name to only run that test, or
// .show to always show the output. or both
const solo = /\.solo/.test(dir);
const show = /\.show/.test(dir);
if (solo && process.env.CI) {
throw new Error("Forgot to remove `solo: true` from test");
}
(solo ? it.only : it)(dir, () => {
dir = path.resolve(`${__dirname}/samples`, dir);
try {
const Component = require(`${dir}/main.svelte`).default;
const expectedHtml = tryToReadFile(`${dir}/_expected.html`);
const expectedCss = tryToReadFile(`${dir}/_expected.css`) || "";
const props = tryToLoadJson(`${dir}/data.json`) || undefined;
const rendered = Component.render(props);
const { html, css, head } = rendered;
fs.writeFileSync(`${dir}/_actual.html`, html);
if (css.code) fs.writeFileSync(`${dir}/_actual.css`, css.code);
try {
assert.htmlEqual(html, expectedHtml);
} catch (error) {
if (shouldUpdateExpected()) {
fs.writeFileSync(`${dir}/_expected.html`, html);
console.log(`Updated ${dir}/_expected.html.`);
} else {
throw error;
}
}
try {
assert.equal(
css.code.replace(/^\s+/gm, ""),
expectedCss.replace(/^\s+/gm, "")
);
} catch (error) {
if (shouldUpdateExpected()) {
fs.writeFileSync(`${dir}/_expected.css`, css.code);
console.log(`Updated ${dir}/_expected.css.`);
} else {
throw error;
}
}
if (fs.existsSync(`${dir}/_expected-head.html`)) {
fs.writeFileSync(`${dir}/_actual-head.html`, head);
try {
assert.htmlEqual(
head,
fs.readFileSync(`${dir}/_expected-head.html`, 'utf-8')
);
} catch (error) {
if (shouldUpdateExpected()) {
fs.writeFileSync(`${dir}/_expected-head.html`, head);
console.log(`Updated ${dir}/_expected-head.html.`);
} else {
throw error;
}
}
}
if (show) showOutput(dir, { generate: 'ssr', format: 'cjs' });
} catch (err) {
showOutput(dir, { generate: 'ssr', format: 'cjs' });
err.stack += `\n\ncmd-click: ${path.relative(process.cwd(), dir)}/main.svelte`;
throw err;
}
});
});
// duplicate client-side tests, as far as possible
fs.readdirSync("test/runtime/samples").forEach(dir => {
if (dir[0] === ".") return;
const config = loadConfig(`./runtime/samples/${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");
}
if (config.skip_if_ssr) return;
(config.skip ? it.skip : solo ? it.only : it)(dir, () => {
const cwd = path.resolve("test/runtime/samples", dir);
Object.keys(require.cache)
.filter(x => x.endsWith('.svelte'))
.forEach(file => {
delete require.cache[file];
});
delete global.window;
const compileOptions = Object.assign({ sveltePath }, config.compileOptions, {
generate: 'ssr',
format: 'cjs'
});
require("../../register")(compileOptions);
glob('**/*.svelte', { cwd }).forEach(file => {
if (file[0] === '_') return;
const dir = `${cwd}/_output/ssr`;
const out = `${dir}/${file.replace(/\.svelte$/, '.js')}`;
if (fs.existsSync(out)) {
fs.unlinkSync(out);
}
mkdirp(dir);
try {
const { js } = compile(
fs.readFileSync(`${cwd}/${file}`, 'utf-8'),
{
...compileOptions,
filename: file
}
);
fs.writeFileSync(out, js.code);
} catch (err) {
// do nothing
}
});
try {
if (config.before_test) config.before_test();
const Component = require(`../runtime/samples/${dir}/main.svelte`).default;
const { html } = Component.render(config.props, {
store: (config.store !== true) && config.store
});
if (config.ssrHtml) {
assert.htmlEqual(html, config.ssrHtml);
} else if (config.html) {
assert.htmlEqual(html, config.html);
}
if (config.after_test) config.after_test();
if (config.show) {
showOutput(cwd, compileOptions);
}
} catch (err) {
err.stack += `\n\ncmd-click: ${path.relative(process.cwd(), cwd)}/main.svelte`;
if (config.error) {
if (typeof config.error === 'function') {
config.error(assert, err);
} else {
assert.equal(err.message, config.error);
}
} else {
showOutput(cwd, compileOptions);
throw err;
}
}
});
});
});