/
server.js
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/
server.js
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// @flow strict-local
import assert from 'assert';
import invariant from 'assert';
import path from 'path';
import {
assertBundles,
bundler,
getNextBuild,
inputFS,
outputFS,
overlayFS,
ncp,
request as get,
} from '@parcel/test-utils';
import https from 'https';
import getPort from 'get-port';
import type {BuildEvent} from '@parcel/types';
const distDir = path.resolve(__dirname, '.parcel-cache/dist');
const config = path.join(
__dirname,
'./integration/custom-configs/.parcelrc-dev-server',
);
describe('server', function () {
let subscription;
afterEach(async () => {
if (subscription) {
await subscription.unsubscribe();
}
subscription = null;
});
it('should serve files', async function () {
let port = await getPort();
let b = bundler(path.join(__dirname, '/integration/commonjs/index.js'), {
defaultTargetOptions: {
distDir,
},
config,
serveOptions: {
https: false,
port: port,
host: 'localhost',
},
});
subscription = await b.watch();
await getNextBuild(b);
let data = await get('/index.js', port);
let distFile = await outputFS.readFile(
path.join(distDir, 'index.js'),
'utf8',
);
assert.equal(data, distFile);
});
it('should serve source files', async function () {
let port = await getPort();
let inputPath = path.join(__dirname, '/integration/commonjs/index.js');
let b = bundler(inputPath, {
defaultTargetOptions: {
distDir,
},
config,
serveOptions: {
https: false,
port: port,
host: 'localhost',
},
});
subscription = await b.watch();
await getNextBuild(b);
let data = await get(
'/__parcel_source_root/integration/commonjs/index.js',
port,
);
let inputFile = await inputFS.readFile(inputPath, 'utf8');
assert.equal(data, inputFile);
});
it('should serve sourcemaps', async function () {
let port = await getPort();
let inputPath = path.join(__dirname, '/integration/commonjs/index.js');
let b = bundler(inputPath, {
defaultTargetOptions: {
distDir,
},
config,
serveOptions: {
https: false,
port: port,
host: 'localhost',
},
});
subscription = await b.watch();
await getNextBuild(b);
let data = await get('/index.js.map', port);
let distFile = await outputFS.readFile(
path.join(distDir, 'index.js.map'),
'utf8',
);
assert.equal(data, distFile);
});
it('should serve a default page if the main bundle is an HTML asset', async function () {
let port = await getPort();
let b = bundler(
[
path.join(__dirname, '/integration/html/other.html'),
path.join(__dirname, '/integration/html/index.html'),
],
{
defaultTargetOptions: {
distDir,
},
config,
serveOptions: {
https: false,
port: port,
host: 'localhost',
},
},
);
subscription = await b.watch();
await getNextBuild(b);
let rootIndexFile = await outputFS.readFile(
path.join(distDir, 'index.html'),
'utf8',
);
let data = await get('/', port);
assert.equal(data, rootIndexFile);
let fooIndexFile = await outputFS.readFile(
path.join(distDir, 'foo/index.html'),
'utf8',
);
data = await get('/foo', port);
assert.equal(data, fooIndexFile);
data = await get('/foo/bar', port);
assert.equal(data, fooIndexFile);
});
it('should serve a default page if the main bundle is an HTML asset even if it is not called index', async function () {
let port = await getPort();
let inputPath = path.join(__dirname, '/integration/html/other.html');
let b = bundler(inputPath, {
defaultTargetOptions: {
distDir,
},
config,
serveOptions: {
https: false,
port: port,
host: 'localhost',
},
});
subscription = await b.watch();
await getNextBuild(b);
let rootIndexFile = await outputFS.readFile(
path.join(distDir, 'other.html'),
'utf8',
);
let data = await get('/', port);
assert.equal(data, rootIndexFile);
data = await get('/foo', port);
assert.equal(data, rootIndexFile);
data = await get('/foo/bar', port);
assert.equal(data, rootIndexFile);
});
it('should serve a default page if the main bundle is an HTML asset with package.json#source', async function () {
let port = await getPort();
let inputPath = path.join(__dirname, '/integration/html-pkg-source/');
let b = bundler(inputPath, {
defaultTargetOptions: {
distDir,
},
config,
serveOptions: {
https: false,
port: port,
host: 'localhost',
},
});
subscription = await b.watch();
let event: BuildEvent = await getNextBuild(b);
invariant(event.type === 'buildSuccess');
let bundleGraph = event.bundleGraph;
let outputFile = await outputFS.readFile(
bundleGraph.getBundles()[0].filePath,
'utf8',
);
let data = await get('/', port);
assert.equal(data, outputFile);
data = await get('/foo/bar', port);
assert.equal(data, outputFile);
});
it('should serve a 404 if the file does not exist', async function () {
let port = await getPort();
let b = bundler(path.join(__dirname, '/integration/commonjs/index.js'), {
config,
serveOptions: {
https: false,
port: port,
host: 'localhost',
},
});
subscription = await b.watch();
await getNextBuild(b);
let statusCode = 200;
try {
await get('/fake.js', port);
} catch (err) {
statusCode = err.statusCode;
}
assert.equal(statusCode, 404);
});
it('should serve a 500 if the bundler errored', async function () {
let port = await getPort();
let inputDir = path.join(__dirname, '/input/server-500');
await ncp(path.join(__dirname, '/integration/babel'), inputDir);
let entry = path.join(inputDir, 'index.js');
let b = bundler(entry, {
defaultTargetOptions: {
distDir,
},
inputFS: overlayFS,
config,
serveOptions: {
https: false,
port: port,
host: 'localhost',
},
});
subscription = await b.watch();
await getNextBuild(b);
await outputFS.writeFile(path.join(inputDir, 'foo.js'), 'syntax\\error');
// Await the second build failing (which means resolving with
// a buildFailure event)
await getNextBuild(b);
let statusCode = 200;
try {
await get('/index.js', port);
} catch (err) {
statusCode = err.statusCode;
assert(err.data.includes('Expected unicode escape'));
}
assert.equal(statusCode, 500);
});
it('should support HTTPS', async function () {
let port = await getPort();
let b = bundler(path.join(__dirname, '/integration/commonjs/index.js'), {
defaultTargetOptions: {
distDir,
},
config,
serveOptions: {
https: true,
port: port,
host: 'localhost',
},
});
subscription = await b.watch();
await getNextBuild(b);
let data = await get('/index.js', port, https);
assert.equal(
data,
await outputFS.readFile(path.join(distDir, 'index.js'), 'utf8'),
);
});
it('should support HTTPS via custom certificate', async function () {
let port = await getPort();
let b = bundler(path.join(__dirname, '/integration/commonjs/index.js'), {
defaultTargetOptions: {
distDir,
},
config,
serveOptions: {
https: {
key: path.join(__dirname, '/integration/https/private.pem'),
cert: path.join(__dirname, '/integration/https/primary.crt'),
},
port: port,
host: 'localhost',
},
});
subscription = await b.watch();
await getNextBuild(b);
let data = await get('/index.js', port, https);
assert.equal(
data,
await outputFS.readFile(path.join(distDir, 'index.js'), 'utf8'),
);
});
it('should support setting a public url', async function () {
let port = await getPort();
let b = bundler(path.join(__dirname, '/integration/commonjs/index.js'), {
defaultTargetOptions: {
distDir,
},
config,
serveOptions: {
https: false,
port: port,
host: 'localhost',
publicUrl: '/dist',
},
});
subscription = await b.watch();
await getNextBuild(b);
let data = await get('/dist/index.js', port);
assert.equal(
data,
await outputFS.readFile(path.join(distDir, 'index.js'), 'utf8'),
);
});
it('should work with query parameters that contain a dot', async function () {
let port = await getPort();
let b = bundler(path.join(__dirname, '/integration/commonjs/index.js'), {
defaultTargetOptions: {
distDir,
},
config,
serveOptions: {
https: false,
port: port,
host: 'localhost',
},
});
subscription = await b.watch();
await getNextBuild(b);
let data = await get('/index.js?foo=bar.baz', port);
assert.equal(
data,
await outputFS.readFile(path.join(distDir, 'index.js'), 'utf8'),
);
});
it('should work with paths that contain a dot', async function () {
let port = await getPort();
let b = bundler(path.join(__dirname, '/integration/html/index.html'), {
defaultTargetOptions: {
distDir,
},
config,
serveOptions: {
https: false,
port: port,
host: 'localhost',
},
});
subscription = await b.watch();
await getNextBuild(b);
let data = await get('/bar.baz', port);
assert.equal(
data,
await outputFS.readFile(path.join(distDir, 'index.html'), 'utf8'),
);
});
it('should support lazy bundling', async function () {
let port = await getPort();
let b = bundler(path.join(__dirname, '/integration/html/index.html'), {
defaultTargetOptions: {
distDir,
},
config,
serveOptions: {
https: false,
port: port,
host: 'localhost',
},
shouldBuildLazily: true,
shouldContentHash: false,
});
await outputFS.mkdirp(distDir);
let builds = [];
subscription = await b.watch((err, buildEvent) => {
builds.push(buildEvent);
});
let build = await getNextBuild(b);
invariant(build.type === 'buildSuccess');
assertBundles(build.bundleGraph, [
{
type: 'css',
assets: ['index.html'],
},
{
name: 'index.html',
assets: ['index.html'],
},
]);
// Bundle should exist in the graph, but not written to disk as it is just a placeholder
let dir = await outputFS.readdir(distDir);
assert.deepEqual(dir, []);
let data = await get('/index.html', port);
assert.equal(
data,
await outputFS.readFile(path.join(distDir, 'index.html'), 'utf8'),
);
assert.equal(builds.length, 2);
build = builds[1];
invariant(build?.type === 'buildSuccess');
assertBundles(build.bundleGraph, [
{
type: 'css',
assets: ['index.html'],
},
{
// index.html
name: 'index.html',
assets: ['index.html'],
},
{
// foo/index.html
name: 'index.html',
assets: ['index.html'],
},
{
name: 'other.html',
assets: ['other.html'],
},
{
type: 'svg',
assets: ['icons.svg'],
},
{
type: 'png',
assets: ['100x100.png'],
},
{
type: 'js',
assets: ['index.js'],
},
{
type: 'css',
assets: ['index.css'],
},
]);
// Sibling bundles should have been fully written to disk, but not async bundles.
dir = await outputFS.readdir(distDir);
assert.deepEqual(dir.length, 8);
assert(!dir.includes('other.html'));
});
it('should support lazy bundling sibling css files of dynamic import', async function () {
let port = await getPort();
let b = bundler(path.join(__dirname, '/integration/dynamic-css/index.js'), {
defaultTargetOptions: {
distDir,
},
config,
serveOptions: {
https: false,
port: port,
host: 'localhost',
},
shouldBuildLazily: true,
shouldContentHash: false,
});
await outputFS.mkdirp(distDir);
let builds = [];
subscription = await b.watch((err, buildEvent) => {
builds.push(buildEvent);
});
let build = await getNextBuild(b);
invariant(build.type === 'buildSuccess');
assertBundles(build.bundleGraph, [
{
name: 'index.js',
assets: ['index.js'],
},
]);
// Bundle should exist in the graph, but not written to disk as it is just a placeholder
let dir = await outputFS.readdir(distDir);
assert.deepEqual(dir, []);
let data = await get(`/index.js`, port);
assert.equal(
data,
await outputFS.readFile(path.join(distDir, 'index.js'), 'utf8'),
);
assert.equal(builds.length, 2);
build = builds[1];
invariant(build?.type === 'buildSuccess');
assertBundles(build.bundleGraph, [
{
name: 'index.js',
assets: [
'bundle-url.js',
'cacheLoader.js',
'css-loader.js',
'index.js',
'js-loader.js',
],
},
{name: /local\.[0-9a-f]{8}\.js/, assets: ['local.js']},
{name: 'index.css', assets: ['index.css']},
]);
// local.js should exist in the graph, but not written to disk
dir = await outputFS.readdir(distDir);
assert.deepEqual(
dir.sort(),
['index.js', 'index.css', 'index.js.map', 'index.css.map'].sort(),
);
let local = build.bundleGraph
.getBundles()
.find(
b => b.type === 'js' && path.basename(b.filePath).startsWith('local'),
);
invariant(local);
data = await get(`/${path.basename(local.filePath)}`, port);
assert.equal(
data,
await outputFS.readFile(
path.join(distDir, path.basename(local.filePath)),
'utf8',
),
);
assert.equal(builds.length, 3);
build = builds[2];
invariant(build?.type === 'buildSuccess');
assertBundles(build.bundleGraph, [
{
name: 'index.js',
assets: [
'bundle-url.js',
'cacheLoader.js',
'css-loader.js',
'index.js',
'js-loader.js',
],
},
{name: 'index.css', assets: ['index.css']},
{name: /local\.[0-9a-f]{8}\.js/, assets: ['local.js']},
{name: /local\.[0-9a-f]{8}\.css/, assets: ['local.css']},
]);
dir = await outputFS.readdir(distDir);
assert.deepEqual(dir.length, 8); // bundles + source maps
let localCSS = build.bundleGraph
.getBundles()
.find(
b => b.type === 'css' && path.basename(b.filePath).startsWith('local'),
);
invariant(localCSS);
assert(data.includes(path.basename(localCSS.filePath)));
assert(data.includes('css-loader'));
});
});