Testing streaming service (like selenium)

You can use a service for cloud-hosted testing for this, you will not have to care about the testing infrastructure then. Some services allow you to use Selenium in the test scripts, so test creation will be similar to a local testing experience. Here is a link to a service that will allow you to achieve what you need and you can run some tests for free there. Also here is a step-by-step guide to create and set your test.