svelte/test/cli/index.js

const fs = require('fs');
const path = require('path');
const child_process = require('child_process');
const assert = require('assert');
const glob = require('tiny-glob/sync.js');

const bin = path.resolve(`svelte`);

function normalize(str) {
	return str
		.replace(/^\s+$/gm, '')
		.replace(/generated by Svelte v[.\d]+/, `generated by Svelte vx.y.z`)
		.trim();
}

const cwd = process.cwd();

describe('cli', () => {
	afterEach(() => {
		process.chdir(cwd);
	});

	fs.readdirSync('test/cli/samples').forEach(dir => {
		if (dir[0] === '.') return;

		// append .solo to test dir to only run that test
		const solo = /\.solo$/.test(dir);

		(solo ? it.only : it)(dir, done => {
			process.chdir(`${__dirname}/samples/${dir}`);

			const command = fs.readFileSync('command.sh', 'utf-8');

			child_process.exec(`
				alias svelte=${bin}
				mkdir -p actual
				rm -rf actual/*
				${command}
			`, (err, stdout, stderr) => {
				if (err) {
					done(err);
					return;
				}

				const actual = glob('**', { cwd: 'actual', filesOnly: true })
					.map(file => {
						return {
							file,
							contents: normalize(fs.readFileSync(`actual/${file}`, 'utf-8'))
						};
					});

				const expected = glob('**', { cwd: 'expected', filesOnly: true })
					.map(file => {
						return {
							file,
							contents: normalize(
								fs.readFileSync(`expected/${file}`, 'utf-8')
							)
						};
					});

				actual.forEach((a, i) => {
					const e = expected[i];

					assert.equal(a.file, e.file, 'File list mismatch');

					if (/\.map$/.test(a.file)) {
						assert.deepEqual(JSON.parse(a.contents), JSON.parse(e.contents));
					} else {
						assert.equal(a.contents, e.contents);
					}
				});

				done();
			});
		});
	});
});