245 lines
		
	
	
		
			5.9 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			245 lines
		
	
	
		
			5.9 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
/* eslint-disable no-eval, no-process-exit, no-unused-vars */
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import {Observable} from 'rx';
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import tape from 'tape';
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import { getChallenges } from '@freecodecamp/curriculum';
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import MongoIds from './mongoIds';
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import ChallengeTitles from './challengeTitles';
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import addAssertsToTapTest from './addAssertsToTapTest';
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import { validateChallenge } from './schema/challengeSchema';
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// modern challengeType
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const modern = 6;
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let mongoIds = new MongoIds();
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let challengeTitles = new ChallengeTitles();
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function evaluateTest(
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  solution,
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  assert,
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  react,
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  redux,
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  reactRedux,
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  head,
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  tail,
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  test,
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  tapTest
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) {
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  let code = solution;
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  /* NOTE: Provide dependencies for React/Redux challenges
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               * and configure testing environment
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               */
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  let React,
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    ReactDOM,
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    Redux,
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    ReduxThunk,
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    ReactRedux,
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    Enzyme,
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    document;
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  // Fake Deep Equal dependency
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  const DeepEqual = (a, b) =>
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    JSON.stringify(a) === JSON.stringify(b);
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  // Hardcode Deep Freeze dependency
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  const DeepFreeze = (o) => {
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    Object.freeze(o);
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    Object.getOwnPropertyNames(o).forEach(function(prop) {
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      if (o.hasOwnProperty(prop)
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        && o[ prop ] !== null
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        && (
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          typeof o[ prop ] === 'object' ||
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          typeof o[ prop ] === 'function'
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        )
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        && !Object.isFrozen(o[ prop ])) {
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        DeepFreeze(o[ prop ]);
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      }
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    });
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    return o;
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  };
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  if (react || redux || reactRedux) {
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    // Provide dependencies, just provide all of them
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    React = require('react');
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    ReactDOM = require('react-dom');
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    Redux = require('redux');
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    ReduxThunk = require('redux-thunk');
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    ReactRedux = require('react-redux');
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    Enzyme = require('enzyme');
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    const Adapter15 = require('enzyme-adapter-react-15');
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    Enzyme.configure({ adapter: new Adapter15() });
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    /* Transpile ALL the code
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                 * (we may use JSX in head or tail or tests, too): */
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    const transform = require('babel-standalone').transform;
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    const options = { presets: [ 'es2015', 'react' ] };
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    head = transform(head, options).code;
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    solution = transform(solution, options).code;
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    tail = transform(tail, options).code;
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    test = transform(test, options).code;
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    const { JSDOM } = require('jsdom');
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    // Mock DOM document for ReactDOM.render method
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    const jsdom = new JSDOM(`<!doctype html>
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                  <html>
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                    <body>
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                      <div id="challenge-node"></div>
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                    </body>
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                  </html>
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                `);
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    const { window } = jsdom;
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    // Mock DOM for ReactDOM tests
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    document = window.document;
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    global.window = window;
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    global.document = window.document;
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  }
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  /* eslint-enable no-unused-vars */
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  try {
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    (() => {
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      return eval(
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        head + '\n' +
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        solution + '\n' +
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        tail + '\n' +
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        test.testString
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      );
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    })();
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  } catch (e) {
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    console.log(
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      head + '\n' +
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      solution + '\n' +
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      tail + '\n' +
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      test.testString
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    );
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    console.log(e);
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    tapTest.fail(e);
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    process.exit(1);
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  }
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}
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function createTest({
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  title,
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  id = '',
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  tests = [],
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  solutions = [],
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  files = [],
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  react = false,
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  redux = false,
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  reactRedux = false
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}) {
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  mongoIds.check(id, title);
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  challengeTitles.check(title);
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  solutions = solutions.filter(solution => !!solution);
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  tests = tests.filter(test => !!test);
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  // No support for async tests
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  const isAsync = s => s.includes('(async () => ');
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  if (isAsync(tests.join(''))) {
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    console.log(`Replacing Async Tests for Challenge ${title}`);
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    tests = tests.map(challengeTestSource =>
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      isAsync(challengeTestSource) ?
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      "assert(true, 'message: great');" :
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      challengeTestSource);
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    }
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  const { head, tail } = Object.keys(files)
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    .map(key => files[key])
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    .reduce(
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      (result, file) => ({
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        head: result.head + ';' + file.head.join('\n'),
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        tail: result.tail + ';' + file.tail.join('\n')
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      }),
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      { head: '', tail: '' }
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    );
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  const plan = tests.length;
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  if (!plan) {
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    return Observable.just({
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      title,
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      type: 'missing'
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    });
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  }
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  return Observable.fromCallback(tape)(title)
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    .doOnNext(tapTest =>
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      solutions.length ? tapTest.plan(plan) : tapTest.end())
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    .flatMap(tapTest => {
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      if (solutions.length <= 0) {
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        tapTest.comment('No solutions for ' + title);
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        return Observable.just({
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          title,
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          type: 'missing'
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        });
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      }
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      return Observable.just(tapTest)
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        .map(addAssertsToTapTest)
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        /* eslint-disable no-unused-vars */
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        // assert and code used within the eval
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        .doOnNext(assert => {
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          solutions.forEach(solution => {
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            tests.forEach(test => {
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              evaluateTest(
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                solution,
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                assert,
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                react,
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                redux,
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                reactRedux,
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                head,
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                tail,
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                test,
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                tapTest
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              );
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            });
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          });
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        })
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        .map(() => ({ title }));
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    });
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}
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Observable.from(getChallenges())
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  .do(({ challenges }) => {
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    challenges.forEach(challenge => {
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      const result = validateChallenge(challenge);
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      if (result.error) {
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        console.log(result.value);
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        throw new Error(result.error);
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      }
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    });
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  })
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  .flatMap(challengeSpec => {
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    return Observable.from(challengeSpec.challenges);
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  })
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  .filter(({ challengeType }) => challengeType !== modern)
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  .flatMap(challenge => {
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    return createTest(challenge);
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  })
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  .map(({ title, type }) => {
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    if (type === 'missing') {
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      return title;
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    }
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    return false;
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  })
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  .filter(title => !!title)
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  .toArray()
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  .subscribe(
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    (noSolutions) => {
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      if (noSolutions) {
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        console.log(
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          '# These challenges have no solutions\n- [ ] ' +
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          noSolutions.join('\n- [ ] ')
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        );
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      }
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    },
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    err => {
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      throw err;
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    },
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    () => process.exit(0)
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  );
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