Coverage of es6 files won't work if karma.conf.js is lower in directory than covered files

[gajewsk2]

My project structure:

base/
    ./unit-tests/
              karma.conf.js
    ./core/
              data-model.es6
              data-model.es6.js

If the project is like this then .es6.js gets picked up by coverage instead of the .es6 files. If I move the conf file up and set the basePath accordingly, everything works.

This is my karma conf:

module.exports = function (config) {

  config.set({

    // base path that will be used to resolve all patterns (eg. files, exclude)
    basePath: '../../',

    // frameworks to use
    // available frameworks: https://npmjs.org/browse/keyword/karma-adapter
    frameworks: ['jspm', 'jasmine-jquery', 'jasmine'],

    files: [
      '../../node_modules/babel-polyfill/dist/polyfill.js',
      {pattern: '**/fixtures/*.html', watched: true, included: false, served: true},
      {pattern: '**/fixtures/*.json', watched: true, included: false, served: true}
    ],

    // list of files / patterns to load in the browser
    //files: [
    //  '../jspm_packages/system.js',
    //
    //  '**/*.spec.js',
    //  {pattern: '**/fixtures/*.html', watched: true, included: false, served: true},
    //  {pattern: '**/fixtures/*.json', watched: true, included: false, served: true}
    //],

    jspm: {
      // Edit this to your needs
      config: 'scripts/jspm.config.js',
      loadFiles: [
        'scripts/unit-tests/init.es6.js',
        'scripts/**/*.spec.es6.js'
      ],
      serveFiles: [
        'scripts/**/!(*spec).es6.js'
      ]
    },
    // list of files to exclude
    exclude: [],

    proxies: {
      '/jspm_packages/': '/jspm_packages/',
      '/static/': '/base/'
    },

    // preprocess matching files before serving them to the browser
    // available preprocessors: https://npmjs.org/browse/keyword/karma-preprocessor
    preprocessors: {
      'scripts/**/*.es6': ['babel', 'sourcemap', 'coverage'],
      'scripts/**/*.es6.js': ['coverage']
    },

    // test results reporter to use
    // possible values: 'dots', 'progress'
    // available reporters: https://npmjs.org/browse/keyword/karma-reporter
    reporters: ['coverage', 'progress', 'junit'],

    'babelPreprocessor': {
      options: {
        presets: ['es2015'],
        sourceMap: 'inline'
      },
      sourceFileName: function (file) {
        return file.originalPath;
      }
    },

    coverageReporter: {
      dir: 'scripts/unit-tests/reports/coverage',
      instrumenters: {isparta: require('isparta')},
      instrumenter: {
        'scripts/**/*.es6.js': 'isparta'
      },
      reporters: [
        {
          type: 'text-summary',
          subdir: normalizationBrowserName
        },
        {
          type: 'html',
          subdir: normalizationBrowserName
        },
        {
          type: 'cobertura',
          subdir: 'cobertura'
        }
      ]
    },
    junitReporter: {
      outputFile: 'TESTS-karma.xml',
      outputDir: 'scripts/unit-tests/reports/junit/'
    },

    // web server port
    port: 9876,

    // enable / disable colors in the output (reporters and logs)
    colors: true,

    // level of logging
    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
    logLevel: config.LOG_INFO,

    // enable / disable watching file and executing tests whenever any file changes
    autoWatch: true,

    // start these browsers
    // available browser launchers: https://npmjs.org/browse/keyword/karma-launcher
    browsers: [/*Chrome,'Firefox' 'Safari',*/ 'PhantomJS'],

    // Continuous Integration mode
    // if true, Karma captures browsers, runs the tests and exits
    singleRun: true
  });

  function normalizationBrowserName(browser) {
    return browser.toLowerCase().split(/[ /-]/)[0];
  }
};