610 lines
19 KiB
JavaScript
610 lines
19 KiB
JavaScript
/* eslint-disable no-loop-func */
|
||
const path = require('path');
|
||
const liveServer = require('live-server');
|
||
const stringSimilarity = require('string-similarity');
|
||
const { isAuditedCert } = require('../../utils/is-audited');
|
||
|
||
const spinner = require('ora')();
|
||
|
||
const clientPath = path.resolve(__dirname, '../../client');
|
||
require('@babel/polyfill');
|
||
require('@babel/register')({
|
||
root: clientPath,
|
||
babelrc: false,
|
||
presets: ['@babel/preset-env', '@babel/typescript'],
|
||
plugins: ['dynamic-import-node'],
|
||
ignore: [/node_modules/],
|
||
only: [clientPath]
|
||
});
|
||
|
||
const mockRequire = require('mock-require');
|
||
const lodash = require('lodash');
|
||
|
||
// lodash-es can't easily be used in node environments, so we just mock it out
|
||
// for the original lodash in testing.
|
||
mockRequire('lodash-es', lodash);
|
||
|
||
const createPseudoWorker = require('./utils/pseudo-worker');
|
||
const {
|
||
default: createWorker
|
||
} = require('../../client/src/templates/Challenges/utils/worker-executor');
|
||
|
||
const { assert, AssertionError } = require('chai');
|
||
const Mocha = require('mocha');
|
||
|
||
const { flatten, isEmpty, cloneDeep, isEqual } = lodash;
|
||
const { getLines } = require('../../utils/get-lines');
|
||
|
||
const jsdom = require('jsdom');
|
||
|
||
const vm = require('vm');
|
||
|
||
const puppeteer = require('puppeteer');
|
||
|
||
const {
|
||
getChallengesForLang,
|
||
getMetaForBlock,
|
||
getTranslatableComments
|
||
} = require('../getChallenges');
|
||
|
||
const MongoIds = require('./utils/mongoIds');
|
||
const ChallengeTitles = require('./utils/challengeTitles');
|
||
const { challengeSchemaValidator } = require('../schema/challengeSchema');
|
||
const { challengeTypes } = require('../../client/utils/challengeTypes');
|
||
|
||
const { toSortedArray } = require('../../utils/sort-files');
|
||
|
||
const { testedLang } = require('../utils');
|
||
|
||
const {
|
||
buildDOMChallenge,
|
||
buildJSChallenge
|
||
} = require('../../client/src/templates/Challenges/utils/build');
|
||
|
||
const { sortChallenges } = require('./utils/sort-challenges');
|
||
|
||
const TRANSLATABLE_COMMENTS = getTranslatableComments(
|
||
path.resolve(__dirname, '..', 'dictionaries')
|
||
);
|
||
|
||
// the config files are created during the build, but not before linting
|
||
/* eslint-disable import/no-unresolved */
|
||
const testEvaluator =
|
||
require('../../config/client/test-evaluator.json').filename;
|
||
/* eslint-enable import/no-unresolved */
|
||
const { inspect } = require('util');
|
||
|
||
const commentExtractors = {
|
||
html: require('./utils/extract-html-comments'),
|
||
js: require('./utils/extract-js-comments'),
|
||
jsx: require('./utils/extract-jsx-comments'),
|
||
css: require('./utils/extract-css-comments'),
|
||
scriptJs: require('./utils/extract-script-js-comments')
|
||
};
|
||
|
||
// rethrow unhandled rejections to make sure the tests exit with -1
|
||
process.on('unhandledRejection', err => handleRejection(err));
|
||
|
||
const handleRejection = err => {
|
||
// setting the error code because node does not (yet) exit with a non-zero
|
||
// code on unhandled exceptions.
|
||
process.exitCode = 1;
|
||
cleanup();
|
||
if (process.env.FULL_OUTPUT === 'true') {
|
||
// some errors *may* not be reported, since cleanup is triggered by the
|
||
// first error and that starts shutting down the browser and the server.
|
||
console.error(err);
|
||
} else {
|
||
throw err;
|
||
}
|
||
};
|
||
|
||
const dom = new jsdom.JSDOM('');
|
||
global.document = dom.window.document;
|
||
|
||
const oldRunnerFail = Mocha.Runner.prototype.fail;
|
||
Mocha.Runner.prototype.fail = function (test, err) {
|
||
if (err instanceof AssertionError) {
|
||
const errMessage = String(err.message || '');
|
||
const assertIndex = errMessage.indexOf(': expected');
|
||
if (assertIndex !== -1) {
|
||
err.message = errMessage.slice(0, assertIndex);
|
||
}
|
||
// Don't show stacktrace for assertion errors.
|
||
if (err.stack) {
|
||
delete err.stack;
|
||
}
|
||
}
|
||
return oldRunnerFail.call(this, test, err);
|
||
};
|
||
|
||
async function newPageContext(browser) {
|
||
const page = await browser.newPage();
|
||
// it's needed for workers as context.
|
||
await page.goto('http://127.0.0.1:8080/index.html');
|
||
return page;
|
||
}
|
||
|
||
spinner.start();
|
||
spinner.text = 'Populate tests.';
|
||
|
||
let browser;
|
||
let page;
|
||
|
||
setup()
|
||
.then(runTests)
|
||
.catch(err => handleRejection(err));
|
||
|
||
async function setup() {
|
||
if (process.env.npm_config_superblock && process.env.npm_config_block) {
|
||
throw new Error(`Please do not use both a block and superblock as input.`);
|
||
}
|
||
|
||
// liveServer starts synchronously
|
||
liveServer.start({
|
||
host: '127.0.0.1',
|
||
port: '8080',
|
||
root: path.resolve(__dirname, 'stubs'),
|
||
mount: [['/js', path.join(clientPath, 'static/js')]],
|
||
open: false,
|
||
logLevel: 0
|
||
});
|
||
browser = await puppeteer.launch({
|
||
args: [
|
||
// Required for Docker version of Puppeteer
|
||
'--no-sandbox',
|
||
'--disable-setuid-sandbox',
|
||
// This will write shared memory files into /tmp instead of /dev/shm,
|
||
// because Docker’s default for /dev/shm is 64MB
|
||
'--disable-dev-shm-usage'
|
||
// dumpio: true
|
||
]
|
||
});
|
||
global.Worker = createPseudoWorker(await newPageContext(browser));
|
||
page = await newPageContext(browser);
|
||
await page.setViewport({ width: 300, height: 150 });
|
||
|
||
const lang = testedLang();
|
||
|
||
let challenges = await getChallenges(lang);
|
||
|
||
// the next few statements create a list of all blocks and superblocks
|
||
// as they appear in the list of challenges
|
||
const blocks = challenges.map(({ block }) => block);
|
||
const superBlocks = challenges.map(({ superBlock }) => superBlock);
|
||
const targetBlockStrings = [...new Set(blocks)];
|
||
const targetSuperBlockStrings = [...new Set(superBlocks)];
|
||
|
||
// the next few statements will filter challenges based on command variables
|
||
if (process.env.npm_config_superblock) {
|
||
const filter = stringSimilarity.findBestMatch(
|
||
process.env.npm_config_superblock,
|
||
targetSuperBlockStrings
|
||
).bestMatch.target;
|
||
|
||
console.log(`\nsuperBlock being tested: ${filter}`);
|
||
challenges = challenges.filter(
|
||
challenge => challenge.superBlock === filter
|
||
);
|
||
|
||
if (!challenges.length) {
|
||
throw new Error(`No challenges found with superBlock "${filter}"`);
|
||
}
|
||
}
|
||
|
||
if (process.env.npm_config_block) {
|
||
const filter = stringSimilarity.findBestMatch(
|
||
process.env.npm_config_block,
|
||
targetBlockStrings
|
||
).bestMatch.target;
|
||
|
||
console.log(`\nblock being tested: ${filter}`);
|
||
challenges = challenges.filter(challenge => challenge.block === filter);
|
||
|
||
if (!challenges.length) {
|
||
throw new Error(`No challenges found with block "${filter}"`);
|
||
}
|
||
}
|
||
|
||
const meta = {};
|
||
for (const challenge of challenges) {
|
||
const dashedBlockName = challenge.block;
|
||
if (!meta[dashedBlockName]) {
|
||
meta[dashedBlockName] = (
|
||
await getMetaForBlock(dashedBlockName)
|
||
).challengeOrder;
|
||
}
|
||
}
|
||
return {
|
||
meta,
|
||
challenges,
|
||
lang
|
||
};
|
||
}
|
||
|
||
// cleanup calls some async functions, but it's the last thing that happens, so
|
||
// no need to await anything.
|
||
function cleanup() {
|
||
if (browser) {
|
||
browser.close();
|
||
}
|
||
liveServer.shutdown();
|
||
spinner.stop();
|
||
}
|
||
|
||
function runTests(challengeData) {
|
||
describe('Check challenges', function () {
|
||
after(function () {
|
||
cleanup();
|
||
});
|
||
populateTestsForLang(challengeData);
|
||
});
|
||
spinner.text = 'Testing';
|
||
run();
|
||
}
|
||
|
||
async function getChallenges(lang) {
|
||
const challenges = await getChallengesForLang(lang).then(curriculum =>
|
||
Object.keys(curriculum)
|
||
.map(key => curriculum[key].blocks)
|
||
.reduce((challengeArray, superBlock) => {
|
||
const challengesForBlock = Object.keys(superBlock).map(
|
||
key => superBlock[key].challenges
|
||
);
|
||
return [...challengeArray, ...flatten(challengesForBlock)];
|
||
}, [])
|
||
);
|
||
// This matches the order Gatsby uses (via a GraphQL query). Ideally both
|
||
// should be sourced and sorted using a single query, but we're not there yet.
|
||
return sortChallenges(challenges);
|
||
}
|
||
|
||
function populateTestsForLang({ lang, challenges, meta }) {
|
||
const mongoIds = new MongoIds();
|
||
const challengeTitles = new ChallengeTitles();
|
||
const validateChallenge = challengeSchemaValidator();
|
||
|
||
describe(`Check challenges (${lang})`, function () {
|
||
this.timeout(5000);
|
||
challenges.forEach((challenge, id) => {
|
||
const dashedBlockName = challenge.block;
|
||
describe(challenge.block || 'No block', function () {
|
||
describe(challenge.title || 'No title', function () {
|
||
// Note: the title in meta.json are purely for human readability and
|
||
// do not include translations, so we do not validate against them.
|
||
it('Matches an ID in meta.json', function () {
|
||
const index = meta[dashedBlockName].findIndex(
|
||
arr => arr[0] === challenge.id
|
||
);
|
||
|
||
if (index < 0) {
|
||
throw new AssertionError(
|
||
`Cannot find ID "${challenge.id}" in meta.json file`
|
||
);
|
||
}
|
||
});
|
||
|
||
it('Common checks', function () {
|
||
const result = validateChallenge(challenge);
|
||
|
||
if (result.error) {
|
||
throw new AssertionError(result.error);
|
||
}
|
||
const { id, title, block, dashedName } = challenge;
|
||
const pathAndTitle = `${block}/${dashedName}`;
|
||
mongoIds.check(id, title);
|
||
challengeTitles.check(title, pathAndTitle);
|
||
});
|
||
|
||
it('Has replaced all the English comments', () => {
|
||
// special cases are where this process breaks for some reason, but
|
||
// we have validated that the challenge gets parsed correctly.
|
||
const specialCases = [
|
||
'587d7b84367417b2b2512b36',
|
||
'587d7b84367417b2b2512b37',
|
||
'587d7db0367417b2b2512b82',
|
||
'587d7dbe367417b2b2512bb8',
|
||
'5a24c314108439a4d4036161',
|
||
'5a24c314108439a4d4036154',
|
||
'5a94fe0569fb03452672e45c',
|
||
'5a94fe7769fb03452672e463',
|
||
'5a24c314108439a4d4036148'
|
||
];
|
||
if (specialCases.includes(challenge.id)) return;
|
||
if (
|
||
lang === 'english' ||
|
||
!isAuditedCert(lang, challenge.superBlock)
|
||
) {
|
||
return;
|
||
}
|
||
|
||
// If no .files, then no seed:
|
||
if (!challenge.files) return;
|
||
|
||
// - None of the translatable comments should appear in the
|
||
// translations. While this is a crude check, no challenges
|
||
// currently have the text of a comment elsewhere. If that happens
|
||
// we can handle that challenge separately.
|
||
TRANSLATABLE_COMMENTS.forEach(comment => {
|
||
Object.values(challenge.files).forEach(file => {
|
||
if (file.contents.includes(comment))
|
||
throw Error(
|
||
`English comment '${comment}' should be replaced with its translation`
|
||
);
|
||
});
|
||
});
|
||
|
||
// - None of the translated comment texts should appear *outside* a
|
||
// comment
|
||
Object.values(challenge.files).forEach(file => {
|
||
let comments = {};
|
||
|
||
// We get all the actual comments using the appropriate parsers
|
||
if (file.ext === 'html') {
|
||
const commentTypes = ['css', 'html', 'scriptJs'];
|
||
for (let type of commentTypes) {
|
||
const newComments = commentExtractors[type](file.contents);
|
||
for (const [key, value] of Object.entries(newComments)) {
|
||
comments[key] = comments[key]
|
||
? comments[key] + value
|
||
: value;
|
||
}
|
||
}
|
||
} else {
|
||
comments = commentExtractors[file.ext](file.contents);
|
||
}
|
||
|
||
// Then we compare the number of times each comment appears in the
|
||
// translated text (commentMap) with the number of replacements
|
||
// made during translation (challenge.__commentCounts). If they
|
||
// differ, the translation must have gone wrong
|
||
|
||
const commentMap = new Map(Object.entries(comments));
|
||
|
||
if (isEmpty(challenge.__commentCounts) && isEmpty(commentMap))
|
||
return;
|
||
|
||
if (!isEqual(commentMap, challenge.__commentCounts))
|
||
throw Error(`Mismatch in ${challenge.title}. Replaced comments:
|
||
${inspect(challenge.__commentCounts)}
|
||
Comments in translated text:
|
||
${inspect(commentMap)}
|
||
`);
|
||
});
|
||
});
|
||
|
||
const { challengeType } = challenge;
|
||
if (
|
||
challengeType !== challengeTypes.html &&
|
||
challengeType !== challengeTypes.js &&
|
||
challengeType !== challengeTypes.bonfire &&
|
||
challengeType !== challengeTypes.modern &&
|
||
challengeType !== challengeTypes.backend
|
||
) {
|
||
return;
|
||
}
|
||
|
||
let { tests = [] } = challenge;
|
||
tests = tests.filter(test => !!test.testString);
|
||
if (tests.length === 0) {
|
||
it('Check tests. No tests.');
|
||
return;
|
||
}
|
||
|
||
describe('Check tests syntax', function () {
|
||
tests.forEach(test => {
|
||
it(`Check for: ${test.text}`, function () {
|
||
assert.doesNotThrow(() => new vm.Script(test.testString));
|
||
});
|
||
});
|
||
});
|
||
|
||
if (challengeType === challengeTypes.backend) {
|
||
it('Check tests is not implemented.');
|
||
return;
|
||
}
|
||
|
||
const buildChallenge =
|
||
challengeType === challengeTypes.js ||
|
||
challengeType === challengeTypes.bonfire
|
||
? buildJSChallenge
|
||
: buildDOMChallenge;
|
||
|
||
it('Test suite must fail on the initial contents', async function () {
|
||
this.timeout(5000 * tests.length + 1000);
|
||
// suppress errors in the console.
|
||
const oldConsoleError = console.error;
|
||
console.error = () => {};
|
||
let fails = false;
|
||
let testRunner;
|
||
try {
|
||
testRunner = await createTestRunner(
|
||
challenge,
|
||
'',
|
||
buildChallenge
|
||
);
|
||
} catch {
|
||
fails = true;
|
||
}
|
||
if (!fails) {
|
||
for (const test of tests) {
|
||
try {
|
||
await testRunner(test);
|
||
} catch (e) {
|
||
fails = true;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
console.error = oldConsoleError;
|
||
assert(fails, 'Test suit does not fail on the initial contents');
|
||
});
|
||
|
||
let { solutions = [] } = challenge;
|
||
|
||
// if there's an empty string as solution, this is likely a mistake
|
||
// TODO: what does this look like now? (this being detection of empty
|
||
// lines in solutions - rather than entirely missing solutions)
|
||
|
||
// We need to track where the solution came from to give better
|
||
// feedback if the solution is failing.
|
||
let solutionFromNext = false;
|
||
|
||
if (isEmpty(solutions)) {
|
||
// if there are no solutions in the challenge, it's assumed the next
|
||
// challenge's seed will be a solution to the current challenge.
|
||
// This is expected to happen in the project based curriculum.
|
||
|
||
const nextChallenge = challenges[id + 1];
|
||
// TODO: can this be dried out, ideally by removing the redux
|
||
// handler?
|
||
if (nextChallenge) {
|
||
const solutionFiles = cloneDeep(nextChallenge.files);
|
||
Object.keys(solutionFiles).forEach(key => {
|
||
const file = solutionFiles[key];
|
||
file.editableContents = getLines(
|
||
file.contents,
|
||
challenge.files[key].editableRegionBoundaries
|
||
);
|
||
});
|
||
solutions = [solutionFiles];
|
||
solutionFromNext = true;
|
||
} else {
|
||
throw Error('solution omitted');
|
||
}
|
||
}
|
||
|
||
// TODO: the no-solution filtering is a little convoluted:
|
||
const noSolution = new RegExp('// solution required');
|
||
|
||
const solutionsAsArrays = solutions.map(toSortedArray);
|
||
|
||
const filteredSolutions = solutionsAsArrays.filter(solution => {
|
||
return !isEmpty(
|
||
solution.filter(file => !noSolution.test(file.contents))
|
||
);
|
||
});
|
||
|
||
if (isEmpty(filteredSolutions)) {
|
||
it('Check tests. No solutions');
|
||
return;
|
||
}
|
||
|
||
describe('Check tests against solutions', function () {
|
||
solutions.forEach((solution, index) => {
|
||
it(`Solution ${
|
||
index + 1
|
||
} must pass the tests`, async function () {
|
||
this.timeout(5000 * tests.length + 2000);
|
||
const testRunner = await createTestRunner(
|
||
challenge,
|
||
solution,
|
||
buildChallenge,
|
||
solutionFromNext
|
||
);
|
||
for (const test of tests) {
|
||
await testRunner(test);
|
||
}
|
||
});
|
||
});
|
||
});
|
||
});
|
||
});
|
||
});
|
||
});
|
||
}
|
||
|
||
async function createTestRunner(
|
||
challenge,
|
||
solution,
|
||
buildChallenge,
|
||
solutionFromNext
|
||
) {
|
||
const { required = [], template, removeComments } = challenge;
|
||
// we should avoid modifying challenge, as it gets reused:
|
||
const files = cloneDeep(challenge.files);
|
||
|
||
Object.keys(solution).forEach(key => {
|
||
files[key].contents = solution[key].contents;
|
||
files[key].editableContents = solution[key].editableContents;
|
||
});
|
||
|
||
const { build, sources, loadEnzyme } = await buildChallenge({
|
||
files,
|
||
required,
|
||
template
|
||
});
|
||
|
||
const code = {
|
||
contents: sources.index,
|
||
editableContents: sources.editableContents
|
||
};
|
||
|
||
const evaluator = await (buildChallenge === buildDOMChallenge
|
||
? getContextEvaluator(build, sources, code, loadEnzyme)
|
||
: getWorkerEvaluator(build, sources, code, removeComments));
|
||
|
||
return async ({ text, testString }) => {
|
||
try {
|
||
const { pass, err } = await evaluator.evaluate(testString, 5000);
|
||
if (!pass) {
|
||
throw err;
|
||
}
|
||
} catch (err) {
|
||
// add more info to the error so the failing test can be identified.
|
||
text = 'Test text: ' + text;
|
||
const newMessage = solutionFromNext
|
||
? 'Check next step for solution!\n' + text
|
||
: text;
|
||
// if the stack is missing, the message should be included. Otherwise it
|
||
// is redundant.
|
||
err.message = err.stack
|
||
? newMessage
|
||
: `${newMessage}
|
||
${err.message}`;
|
||
throw err;
|
||
}
|
||
};
|
||
}
|
||
|
||
async function getContextEvaluator(build, sources, code, loadEnzyme) {
|
||
await initializeTestRunner(build, sources, code, loadEnzyme);
|
||
|
||
return {
|
||
evaluate: async (testString, timeout) =>
|
||
Promise.race([
|
||
new Promise((_, reject) =>
|
||
setTimeout(() => reject('timeout'), timeout)
|
||
),
|
||
await page.evaluate(async testString => {
|
||
return await document.__runTest(testString);
|
||
}, testString)
|
||
])
|
||
};
|
||
}
|
||
|
||
async function getWorkerEvaluator(build, sources, code, removeComments) {
|
||
const testWorker = createWorker(testEvaluator, { terminateWorker: true });
|
||
return {
|
||
evaluate: async (testString, timeout) =>
|
||
await testWorker.execute(
|
||
{ testString, build, code, sources, removeComments },
|
||
timeout
|
||
).done
|
||
};
|
||
}
|
||
|
||
async function initializeTestRunner(build, sources, code, loadEnzyme) {
|
||
await page.reload();
|
||
await page.setContent(build);
|
||
await page.evaluate(
|
||
async (code, sources, loadEnzyme) => {
|
||
const getUserInput = fileName => sources[fileName];
|
||
await document.__initTestFrame({ code, getUserInput, loadEnzyme });
|
||
},
|
||
code,
|
||
sources,
|
||
loadEnzyme
|
||
);
|
||
}
|