GraphWalker Player

The GraphWalker player, will visualize your tests progress on a single web page.

What you need to do in your test

Add the GraphWalker Websocket Server to your test. There is an example in PetClinic

But in short, add the GraphWalker Websocket maven dependency to your test project:

<dependency>
   <groupId>org.graphwalker</groupId>
   <artifactId>graphwalker-websocket</artifactId>
   <version>4.3.2</version>
</dependency>

Create the Websocket server and start it. See code below:

public static void main(String[] args) throws IOException, InterruptedException {
    Executor executor = new TestExecutor(PetClinic.class,
            FindOwners.class,
            NewOwner.class,
            OwnerInformation.class,
            Veterinariens.class);

    WebSocketServer server = new WebSocketServer(8887, executor.getMachine());
    server.start();

    Result result = executor.execute(true);
    result.getErrors().forEach(System.out::println);
    System.out.println("Done: [" + result.getResults().toString(2) + "]");
}

The Websocket Sever will be started using the port 8887 in the example above.

The Player

• Download the index.html file to your computer.
• Add to the url where your test runs, and the port used by your tests Websocket server:
  
  • wsURI=localhost:8887
    If your test runs on the same machine as your player, use localhost, otherwise, use the IP address to the machine where your tests is running.
    Complete URL could look like :
    
  • file://<YOUR DOWNLOAD PATH ON YOUR COMPUTER>index.html?wsURI=<IP ADDRESS OF MACHINE RUNNING THE TEST>:<PORT USED BY WEBSOCKET SERVER IN YOUR TEST>
• Use that complete url in a web browser
  
• The player will automatically connect to your test when the test starts.

The visualization

• Vertices and edges in light blue colors, are not yet visited (or executed by the test).
• When a vertex or edge is visited, it vill be colored light gray..
• An edge or vertex currently being executed by the test will be highlighted with a black border.
• When many models are used, the will be placed next to each other by the Player. In random order, and using a grid layout for the individual model.

Below is a video of the GraphWalker Player rendering the PetClinic test in real time.

Troubleshooting, Problems and 'Gotchas'

• The Player does not connect to the test.
  Make sure that you have given the right address and port number.
  Your url must end with the wsURIparameter and data, for example:
  file:///tmp//index.html?wsURI=localhost:8887
  where ?wsURI=localhost:8887 is added to the url, if the test is running on localhost and the WebSocket server is using 8887 as the port number.
• The Player does not connect to the test.
  Make sure that your test could bind to the port when launching. Look out for the
  java.net.BindException: Address already in use
  Reload the Player in the browser, and wait a little while until the operating system releases the port, and then re-run your test.