intern.json

{
  "capabilities": {
    "fixSessionCapabilities": false
  },

  "configs": {
    "all": {
      "environments": [
        "node",
        "microsoftedge",
        "safari",
        {
          "browserName": "internet explorer",
          "version": ["10", "11"]
        },
        {
          "browserName": "firefox",
          "version": "33",
          "platform": ["WINDOWS", "MAC"]
        },
        {
          // latest version
          "browserName": "firefox",
          "platform": ["WINDOWS", "MAC"],
          "supportsSessionCommands": false,

          // Needed for file download support
          // See https://github.com/mozilla/geckodriver/issues/858#issuecomment-322505259
          "moz:firefoxOptions": {
            "prefs": { "dom.file.createInChild": true }
          }
        },
        {
          "browserName": "chrome",
          "version": "38",
          "platform": ["WINDOWS", "MAC"]
        },
        {
          // latest version
          "browserName": "chrome",
          "platform": ["WINDOWS", "MAC"]
        }
      ],

      "tunnel": "browserstack"
    },

    "ci": {
      "environments": [
        "node",
        { "browserName": "chrome", "version": "latest" },
        { "browserName": "firefox", "version": "latest" },
        { "browserName": "safari", "version": "latest" },
        { "browserName": "internet explorer", "version": "latest" }
      ],
      "tunnel": "browserstack"
    },

    "wd": {
      "environments": [
        "node",
        {
          "browserName": "chrome"
        }
      ],
      "tunnelOptions": {
        "drivers": ["chrome"]
      }
    },

    "firefox": {
      "environments": "firefox",
      "tunnelOptions": {
        "drivers": ["firefox"]
      }
    }
  },

  "coverage": ["_build/src/**/*.js"],

  "filterErrorStack": true,

  "functionalSuites": "_build/tests/functional/**/*.js",

  "maxConcurrency": 2,

  "node": {
    "reporters": {
      "name": "runner",
      "options": { "hideSkipped": true, "hidePassed": true }
    },
    "suites": "_build/tests/unit/lib/util.js"
  },

  "plugins": "_build/tests/globalUi.js"
}