Learn Java Unit Testing with JUnit 5 in 20 Steps - @BeforeClass and @AfterClass

Learn Java Unit Testing with JUnit 5 in 20 Steps - @BeforeClass and @AfterClass

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial explains the use of before and after class annotations in testing. It covers the implementation of these methods, emphasizing that before class methods must be static. The tutorial discusses the constraints of static methods, such as the inability to reference instance variables, and suggests using before and after class annotations for performance optimization. The video concludes with a summary of the key points discussed.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of using 'before class' and 'after class' annotations?

To execute actions only after all tests are completed

To execute actions multiple times during a test

To execute actions only once for an entire class

To execute actions before and after every test

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why must methods with 'before class' annotations be static?

To allow access to instance variables

To comply with constraints of static methods

To make them accessible from other classes

To ensure they are executed multiple times

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a limitation of static methods in 'before class' annotations?

They can access instance variables

They cannot initialize class-level variables

They cannot be used for performance optimization

They cannot refer to instance variables

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When is it preferable to use 'before class' and 'after class' annotations?

When actions need to be repeated for every test

When actions are time-consuming and need to be minimized

When actions are simple and quick

When actions are unrelated to performance

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a potential use case for 'before class' annotations?

Initializing database connections

Executing tests in parallel

Accessing instance variables

Running tests in a specific order

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