Request and response validation in Testing Fundamentals - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is request validation in software testing?

Request validation is the process of checking if the data sent to a system (like a web server) is correct, complete, and safe before the system processes it.

beginner

Why is response validation important in testing?

Response validation ensures that the system returns the correct and expected data after processing a request, helping to catch errors or unexpected behavior.

beginner

Name two common checks done during request validation.

1. Checking if required fields are present.<br>2. Verifying data types and formats (e.g., email format).

intermediate

What can happen if response validation is skipped?

Skipping response validation can let bugs or incorrect data go unnoticed, which may cause problems for users or other systems relying on that data.

beginner

Give an example of a simple assertion for response validation in testing.

An example: Check if the response status code is 200 (OK) to confirm the request succeeded.

What does request validation primarily check?

A If the system returns the correct data

B If the data sent to the system is correct and safe

C If the user interface looks good

D If the server is online

Request validation checks the correctness and safety of data sent to the system.

Which of the following is a common response validation step?

A Checking if the request has all required fields

B Checking the user's password strength

C Checking if the response contains expected data

D Checking the server's CPU usage

Response validation ensures the response data matches what is expected.

What might happen if request validation is missing?

A Invalid or harmful data may be processed by the system

B The system will run faster

C The user interface will change color

D The server will shut down

Without request validation, bad data can cause errors or security issues.

Which status code is commonly checked in response validation to confirm success?

A 302

B 500

C 404

D 200

Status code 200 means the request was successful.

What is a simple way to validate a JSON response?

A Check if the JSON contains expected keys and values

B Check if the JSON is encrypted

C Check if the JSON is very large

D Check if the JSON is sent by email

Validating JSON means confirming it has the right keys and values.

Explain in your own words why request and response validation are important in software testing.

Think about what happens if bad data enters or bad data leaves a system.

Describe two common checks you would perform when validating a request and two for validating a response.

Consider what you check before sending data and what you check after receiving data.