test-runner.js

/*
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *       DO NOT EDIT THIS FILE
 *       For FCC testing purposes!
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 *
 */

const analyser = require("./assertion-analyser");
const EventEmitter = require("events").EventEmitter;

const Mocha = require("mocha"),
  fs = require("fs"),
  path = require("path");

const mocha = new Mocha();
const testDir = path.resolve("tests");

// Add each .js file to the mocha instance
fs.readdirSync(testDir)
  .filter(function (file) {
    // Only keep the .js files
    return file.substr(-3) === ".js";
  })
  .forEach(function (file) {
    mocha.addFile(path.join(testDir, file));
  });

let emitter = new EventEmitter();
emitter.run = function () {
  let tests = [];
  let context = "";
  let separator = " -> ";
  // Run the tests.
  try {
    let runner = mocha
      .ui("tdd")
      .run()
      .on("test end", function (test) {
        // remove comments
        let body = test.body.replace(/\/\/.*\n|\/\*.*\*\//g, "");
        // collapse spaces
        body = body.replace(/\s+/g, " ");
        let obj = {
          title: test.title,
          context: context.slice(0, -separator.length),
          state: test.state,
          // body: body,
          assertions: analyser(body),
        };
        tests.push(obj);
      })
      .on("end", function () {
        emitter.report = tests;
        emitter.emit("done", tests);
      })
      .on("suite", function (s) {
        context += s.title + separator;
      })
      .on("suite end", function (s) {
        context = context.slice(0, -(s.title.length + separator.length));
      });
  } catch (e) {
    throw e;
  }
};

module.exports = emitter;

/*
 * Mocha.runner Events:
 * can be used to build a better custom report
 *
 *   - `start`  execution started
 *   - `end`  execution complete
 *   - `suite`  (suite) test suite execution started
 *   - `suite end`  (suite) all tests (and sub-suites) have finished
 *   - `test`  (test) test execution started
 *   - `test end`  (test) test completed
 *   - `hook`  (hook) hook execution started
 *   - `hook end`  (hook) hook complete
 *   - `pass`  (test) test passed
 *   - `fail`  (test, err) test failed
 *   - `pending`  (test) test pending
 */