CI/CD Basics & Code Coverage

Introduction

When do you know that you have sufficient unit tests? Have you covered all of the paths through the code? Code coverage tools permit you to inspect just how many lines of code are being covered by the unit tests. This is usually done by measuring the percentage of code covered in a given method, class or whole packages. Knowing these metrics can help a team establish a measurable level of unit testing for each story.

Learning Outcomes

• Use a code coverage tool to analyze the completeness of the unit test suite.
• Establish a team’s User Story coverage goal.

Study Resources

For your study of this topic, use some of these resources.

Web Articles and Blogs

• CI/CD
• Martin Fowler: Test Coverage

Tool Resources

• SWEN-610Resources: Code Coverage
• JaCoCo
  • Documentation
  • Maven Plugin
  • FAQ

Class Lecture

• Code Coverage

Exercises

None