Network interception (CDP) in Selenium Java - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is Network Interception using CDP in Selenium?

Network Interception with CDP (Chrome DevTools Protocol) allows Selenium tests to monitor, modify, or block network requests and responses during browser automation.

beginner

Which Selenium class is used to access CDP commands for network interception?

The <code>DevTools</code> class is used to create a session and send CDP commands for network interception in Selenium.

intermediate

How do you enable network interception in Selenium using CDP?

You enable network interception by creating a DevTools session and sending the Network.enable command to start listening to network events.

intermediate

What is a common use case for network interception in automated tests?

Common uses include mocking API responses, blocking unwanted resources, and verifying network requests to improve test reliability and speed.

beginner

True or False: Network interception with CDP can modify HTTP request headers before they are sent.

True. CDP allows modification of HTTP request headers, URLs, and even responses before they reach the browser or server.

Which Selenium class do you use to start a CDP session for network interception?

A Actions

B WebDriverWait

C ChromeOptions

D DevTools

The DevTools class is specifically designed to create and manage CDP sessions for network interception.

What command enables network events listening in CDP?

A Network.enable

B Page.load

C Runtime.evaluate

D Network.disable

Network.enable starts the network domain and allows listening to network events.

Which of these is NOT a typical use of network interception in tests?

A Blocking ads or images

B Changing browser window size

C Mocking API responses

D Verifying request headers

Changing browser window size is unrelated to network interception.

Can network interception modify HTTP responses before the browser receives them?

A Yes

B No

C Only headers can be modified

D Only request URLs can be modified

CDP allows modification of both requests and responses, including headers and body.

Which browser must be used to support Selenium CDP network interception?

A Safari

B Firefox

C Chrome or Chromium-based browsers

D Internet Explorer

CDP is supported by Chrome and Chromium-based browsers only.

Explain how to set up network interception using Selenium and CDP in Java.

Think about starting a DevTools session and enabling network domain.

Describe three practical scenarios where network interception helps improve automated tests.

Consider how controlling network traffic can make tests faster and more reliable.