import chaiExec from '@jsdevtools/chai-exec';

import chai, { expect } from 'chai';

import { readdirSync } from 'fs';

chai.use(chaiExec);

const ENABLE_EXAMPLES_TEST = process.env['ENABLE_EXAMPLES_TEST'];

const hint = !ENABLE_EXAMPLES_TEST ? ' (enable it by setting `ENABLE_EXAMPLES_TEST`)' : '';

describe(`::examples${hint}`, function () {

const js = readdirSync('./examples')

.filter(f => f.endsWith('.mjs') || f.endsWith('.js') || f.endsWith('.ts'));

js.forEach(file => {

it(file, function () {

if (!ENABLE_EXAMPLES_TEST) this.skip();

// Increase timeout to avoid failing in CI

this.timeout(30000);

// Node's colorized output needs to be disabled for snapshot testing when running in CI

// https://nodejs.org/api/cli.html#force_color1-2-3

const env = { ...process.env, 'FORCE_COLOR': '0' };

const cli = file.endsWith('.ts')

? chaiExec('node', `dist/examples/${file.slice(0, -3)}.js`, { env })

: chaiExec(`examples/${file}`, { env });

expect(cli).stderr.to.be.empty;

expect(cli).stdout.to.matchSnapshot('out', this);

expect(cli).to.exit.with.code(0);

});

});

});