Browser Stack Local Testing Parellel Test

Question

I need to run my all test cases in parallel of 4 different browser. On my chrome driver its work fine.

Problem arise when i try to run in parallel as local testing.

I get following error com.browserstack.local.LocalException: *** Error: Either another browserstack local client is running on your machine or some server is listening on port 45691

I am using TestNG as my test runner.

The error message indicates that you are launching multiple instances of BrowserStackLocal on the same machine. Since you are trying to initiate tests in parallel are also creating a separate local testing connection for each test run? — Mukesh Tiwari, Mar 31 '17 at 12:31

score 2 · Answer 1 · answered Jun 18 '19 at 16:22

It is too late but maybe it is good for other developers.

I do not know in which language you are programming but if you are using java and using the browserstack-local-java which has poor documentation :(

You need to add browserstack.localIdentifier = "specific id" to the capabilities when you create the WebDriver

At the same time when creating the com.browserstack.local.Local which calls ./BrowserStackLocal under the hood you need to specify an option called localIdentifier and it must have the same value as the browserstack.localIdentifier.

This is not documented but I tested it and it works and take a look on https://github.com/webdriverio/webdriverio/issues/2252

score 0 · Answer 2 · answered Nov 01 '19 at 20:54

I had hard time solving the issue[Error: Either another browserstack local client is running on your machine or some server is listening on port 45691] when running parallel tests. So, I'm adding supporting details for those whore are using browserstack-local-java bindings.

Make sure you are using the correct key names in setting the local identifier for both Browserstack and Local connection.
String localIdentifier = "random string"; localConnectionOptions.put("localIdentifier", localIdentifier); bsCapabilities.setCapability("browserstack.localIdentifier", localIdentifier);

For more details, refer to the Browserstack documentation.

score 0 · Accepted Answer · answered Feb 20 '20 at 19:21

Code to start browserstack local before start of test. I just use the current date-timestamp as my localIdentifier's value as it is unique every time i run it. I have the following bit code in my configuration file

 onPrepare: function (config, capabilities) {
    console.log("Connecting local");
    return new Promise(function (resolve, reject) {
      exports.bs_local = new browserstack.Local();
      exports.bs_local.start({ localIdentifier,'key': exports.config.key }, function (error) {
        if (error) return reject(error);

        console.log('Connected. Now testing...');

        resolve();
      });
    });
  },

Browser Stack Local Testing Parellel Test

3 Answers3