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Mastering Unit Testing Using Mockito and JUnit

You're reading from  Mastering Unit Testing Using Mockito and JUnit

Product type Book
Published in Jul 2014
Publisher
ISBN-13 9781783982509
Pages 314 pages
Edition 1st Edition
Languages
Concepts
Author (1):
Sujoy Acharya Sujoy Acharya
Profile icon Sujoy Acharya
LinkedIn
Sujoy Acharya works as a Principal Engineer with Cerner. While growing up, he pursued his interests in the fields of computer science and engineering. His hobbies are watching movies and sitcoms, playing outdoor sports, and reading books. Sujoy likes to research upcoming technologies. His major contributions are in the fields of TDD, building scalable applications, cloud services, and the Spring Framework. He has authored four books for Packt, namely, Test-Driven Development with Mockito, Mastering Unit Testing using Mockito and JUnit, Mockito Essentials, and Mockito for Spring.
See other products by Sujoy Acharya

Table of Contents (17) Chapters

Mastering Unit Testing Using Mockito and JUnit
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. JUnit 4 – a Total Recall 2. Automating JUnit Tests 3. Test Doubles 4. Progressive Mockito 5. Exploring Code Coverage 6. Revealing Code Quality 7. Unit Testing the Web Tier 8. Playing with Data 9. Solving Test Puzzles 10. Best Practices Index

Understanding code coverage

Code coverage is a measurement of percentage of instructions of code being executed while the automated tests are running.

A piece of code with high code coverage implies that the code has been thoroughly unit tested and has a lower chance of containing bugs than code with a low code coverage. You should concentrate on writing meaningful (business logic) unit tests and not on having 100 percent coverage because it's easy to cheat and have 100 percent coverage with completely useless tests.

Numerous metrics can be used to measure the code coverage. The following are the ones that are widely used:

  • Statement or line coverage: This measures the statements or lines being covered

  • Branch coverage: This measures the percentage of each branch of each control structure, such as the if else and switch case statements

  • Function or method coverage: This measures the function execution

The following Java code will elucidate the metrics.

An absSum method takes two integer arguments...

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Authors (1)

Profile icon Sujoy Acharya
LinkedIn
Sujoy Acharya works as a Principal Engineer with Cerner. While growing up, he pursued his interests in the fields of computer science and engineering. His hobbies are watching movies and sitcoms, playing outdoor sports, and reading books. Sujoy likes to research upcoming technologies. His major contributions are in the fields of TDD, building scalable applications, cloud services, and the Spring Framework. He has authored four books for Packt, namely, Test-Driven Development with Mockito, Mastering Unit Testing using Mockito and JUnit, Mockito Essentials, and Mockito for Spring.
Read more
See other products by Sujoy Acharya

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