Given-When-Then pattern in PyTest - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does the 'Given' step represent in the Given-When-Then pattern?

The 'Given' step sets up the initial context or preconditions for the test. It describes the starting state before the action happens.

beginner

Explain the 'When' step in the Given-When-Then pattern.

The 'When' step describes the action or event that triggers the behavior you want to test.

beginner

What is the purpose of the 'Then' step in the Given-When-Then pattern?

The 'Then' step checks the expected outcome or result after the action in the 'When' step. It contains assertions to verify the behavior.

intermediate

How can you structure a pytest test function using Given-When-Then?

You can write comments or separate code blocks for Given (setup), When (action), and Then (assertions) inside a pytest test function to clearly show each step.

beginner

Why is the Given-When-Then pattern helpful in writing tests?

It makes tests easier to read and understand by clearly separating setup, action, and verification. This helps communicate test intent like a story.

In the Given-When-Then pattern, what does 'When' represent?

A The cleanup after the test

B The initial setup or context

C The expected result or assertion

D The action or event being tested

The 'When' step describes the action or event that triggers the behavior you want to test.

Which step in Given-When-Then contains assertions?

A Given

B When

C Then

D Setup

The 'Then' step contains assertions to verify the expected outcome after the action.

How should you organize a pytest test using Given-When-Then?

A Use comments or separate blocks for Given, When, Then

B Put all code in one block without comments

C Only write assertions without setup

D Write multiple test functions for each step

Using comments or separate code blocks for Given, When, Then improves readability and clarity.

What is the main benefit of using Given-When-Then in tests?

A Improves test readability and understanding

B Helps tests look more complex

C Removes the need for assertions

D Makes tests run faster

Given-When-Then helps clearly separate test steps, making tests easier to read and understand.

In pytest, which keyword is used to write a test function following Given-When-Then?

A class

B def

C import

D assert

In pytest, test functions are defined using the 'def' keyword.

Describe the Given-When-Then pattern and how you would apply it in a pytest test function.

Think of it as telling a simple story in your test.

Why is it important to separate test steps into Given, When, and Then?

Imagine explaining your test to a friend.