Code coverage MythBusters

Track: Java Platform

Abstract

Code coverage is a compelling set of metrics that can help you improve the quality of your software, prevent potential bugs, and even help you investigate the issues.

And as we know with great power comes great responsibility. When applied in the wrong way code coverage can easily transform from your best friend that can boost a developer’s productivity into your worst enemy that throws the sand in the wheels of your developers' productivity machine.

After many years of answering community questions about code coverage in the JaCoCo mailing list, StackOverflow, and in the Sonar community forum we learned that most software engineers don’t understand the purpose of code coverage and how to apply it correctly.

In this talk, we will dispel the most popular myths built around code coverage. This talk will help you understand the concept of code coverage, how it should be used, and how to boost your productivity with code coverage.

Marharyta Nedzelska

Margarita is a big Kotlin fan and Kotlin GDE. Knows both conference sides: speaking and organizing. Organized a KUG in her native city Kyiv because she believes in Knowledge Sharing and Collective Intelligence. For her everyday job, she's building Static Code Analysis tools for Java/Kotlin/Scala and other languages.

Evgeny Mandrikov

Evgeny is a contributor to various open source projects, including OpenJDK, and a speaker at international conferences and JUGs. He is also one of the project leads of widely adopted code coverage library for Java and Kotlin - JaCoCo, and the award-winning EclEmma project at the Eclipse Foundation that integrates JaCoCo into Eclipse. In his day job at Sonar he develops SonarQube’s static source code analysis for languages such as Java, Kotlin, C, and C++.