Grid setup and configuration in Selenium Python - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is Selenium Grid used for?

Selenium Grid allows running tests on multiple machines and browsers at the same time, making testing faster and more efficient.

beginner

What are the two main components of Selenium Grid?

The two main components are the Hub and the Nodes. The Hub controls the test execution, and Nodes run the tests on different browsers and machines.

intermediate

How do you start a Selenium Grid Hub using Python?

You start the Hub by running the command: java -jar selenium-server.jar hub in the terminal.

beginner

What is the purpose of registering a Node to the Hub?

Registering a Node connects it to the Hub so the Hub can send tests to that Node to run on its browser and machine.

intermediate

How can you specify browser and platform capabilities when configuring a Node?

You specify capabilities using JSON or command-line options when starting the Node, telling it which browsers and platforms it supports.

What component of Selenium Grid manages test distribution?

A Node

B Test Runner

C Browser

D Hub

The Hub manages and distributes tests to connected Nodes.

Which command starts a Selenium Grid Node?

A python start_node.py

B java -jar selenium-server.jar hub

C java -jar selenium-server.jar node

D selenium-node start

The Node is started with the command: java -jar selenium-server.jar node

Why use Selenium Grid in testing?

A To run tests faster by parallel execution

B To write tests in multiple languages

C To debug tests easily

D To create test reports

Selenium Grid allows running tests in parallel on different machines and browsers, speeding up testing.

What must a Node do before it can run tests?

A Register with the Hub

B Install Selenium IDE

C Run the test scripts

D Open the browser manually

A Node must register with the Hub to receive and run tests.

Which file is commonly used to configure Selenium Grid settings?

A XML test suite

B JSON configuration file

C Python script

D HTML report

JSON files are often used to configure Grid settings like browser capabilities and node details.

Explain the roles of Hub and Node in Selenium Grid and how they work together.

Think of Hub as a manager and Nodes as workers.

Describe the steps to set up Selenium Grid for parallel testing.

Focus on starting components and connecting them.