testarmada-magellan-mocha-plugin/lib/get_tests.js

/* eslint no-process-exit: 0 */

"use strict";
var _ = require("lodash");
var clc = require("cli-color");
var fs = require("fs");
var path = require("path");
var spawnSync = require("child_process").spawnSync;
var Locator = require("./locator");
var mochaSettings = require("./settings");
var reporter = path.resolve(__dirname, "test_capture.js");
var logger = require("testarmada-logger");

module.exports = function (settings) {
  logger.prefix = "Mocha Plugin";
  var OUTPUT_PATH = path.resolve(settings.tempDir, "get_mocha_tests.json");

  if (!fs.existsSync(settings.tempDir)) {
    fs.mkdirSync(settings.tempDir);
  }

  var cmd = "./node_modules/.bin/mocha";
  var args = ["--reporter", reporter];

  /* istanbul ignore else */
  if (mochaSettings.mochaOpts) {
    args.push("--opts", mochaSettings.mochaOpts);
  }

  args = args.concat(mochaSettings.mochaTestFolders);
  var env = _.extend({}, process.env, { MOCHA_CAPTURE_PATH: OUTPUT_PATH });
  var capture = spawnSync(cmd, args, { env: env });

  /* istanbul ignore next */
  if (capture.status !== 0) {
    logger.error(
      "Could not capture mocha tests. To debug, run the following command:\n" +
      "MOCHA_CAPTURE_PATH=%s %s %s", OUTPUT_PATH, cmd, args.join(" "));
    process.exit(1);
  }
  logger.log("Scanning test files for tests ...");

  var tests = fs.readFileSync(OUTPUT_PATH, "utf-8");
  fs.unlinkSync(OUTPUT_PATH);

  tests = JSON.parse(tests).map(function (t) {
    return new Locator(t.fullTitle, t.file, t.pending, t.title);
  });

  logger.log(clc.green("Found " + tests.length + " tests in test files"));

  return tests;
};