Kraken application with Nemo automation included
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Example usage of Nemo automation for a node.js web application (using kraken-js)


It is recommended that you are running node@v4 or above. If you are using v0.12 for some reason, note that newer versions of selenium-webdriver use ES6 features. You will need to make sure your node process is started with the harmony flag. In general, it's best to use node@v4 or newer.

If you plan to run the wdb-spec.js test (it doesn't run by default), you will need to have an appropriate version of the selenium-standalone jar file on your system. Please see below for more information.

Get started

Install and start the application.

$ git clone
$ cd nemo-example-app
$ npm install
$ grunt build
$ npm start

Run Nemo

$ grunt automation

If you didn't get a successful test run, where you saw a browser open on your desktop, then please refer to this document for instructions on setting up a webdriver.

About the application

This application has one route: http://localhost:8000

It simulates a one-page app, with latency between navigations and simulated "add" operations, and success/failure messages printed to screen.

  • successful login: provide any email address except ""
  • failed login: use ""
  • successful add card: provide any card number except 1001001
  • failed add card: use 1001001
  • successful add bank: provide any account number except 1001001
  • failed add bank: use 1001001

As mentioned above, an identical application is hosted here:

Progression of automation tests

There are several suite files, each illustrating different things:

  • generic-spec.js uses inline locator strings and generic nemo-view methods (see here). Illustrates a first pass of automation.

  • view-spec.js uses JSON locator files which nemo-view turns into convenience methods (see here). Illustrates a second pass of automation where inline locator strings are separated into JSON locator files.

  • page-spec.js uses JSON locator files which nemo-page(like nemo-view) uses to build a model to allow you to do element-level methods in a simple, concise, and precise way.

  • wdb-spec.js uses the nemo-wd-bridge plugin to provide the wd interface, for those who prefer it.

    • You need selenium-standalone on your system. To get it, start here
    • export the path to selenium-standalone as SELENIUM_STANDALONE_PATH=/path/to/selenium-standalone.jar
    • use the command grunt loopmocha:wdb to start the wdb spec
  • flow-spec.js

    • uses flow/*.js modules to illustrate how to abstract functionality into shareable modules
    • uses util/index.js module to abstract error handling and callback management

Getting feedback from your tests

The core nemo modules use the debug module for logging. It is fairly easy to get (or hide) the useful logging output.

If you want to see a good amount of logging information, set DEBUG=nemo*,selenium-drivex*.

Additionally, the nemo-logger module is installed to switch on the selenium-webdriver logging. The output can be quite verbose, but if you need it, change the value of the plugin argument in the test/functional/config/config.json file from WARNING to ALL.

Using mocha directly

Using grunt auto runs mocha via the intermediate grunt-loop-mocha task. Sometimes, for debugging purposes, it is nice to strip that layer away and run the tests via mocha directly. To do that in this repo, do the following:

$ export nemoBaseDir=/path/to/this/repo/nemo-example-app/test/functional
$ DEBUG=nemo*,selenium-drivex*
$ node_modules/.bin/mocha test/functional/spec/*.js --timeout 30000 --grep @flow --harmony

Note: the DEBUG variable is optional, if you want to see a lot of logging during your tests Note: the harmony flag is only necessary if you are using node < v4