Diffblue Cover analyzes your existing Java program and writes unit regression tests that reflect the current behavior of the code.
When your code's behavior changes, Diffblue Cover's tests alert you.
Diffblue Cover is software for Linux and Windows that runs 100% locally on your computer.
You can run it on your entire Java project, just one class, or anything in between. It gets your project structure and dependencies from Maven or Gradle. Cover supports Spring Java apps and writes tests that use standard Spring idioms and mocking.
Cover is available as a CLI tool and as a plugin for IntelliJ IDEA
All Plans
The IntelliJ IDEA Plugin is available for all editions of Diffblue Cover. It can generate tests per method or per class within the IDE.
The plugin can be used for interactive test writing on the developer desktop, and supports test-driven development (TDD) by quickly generating unit regression tests for utility code in bulk—so you can spend your time writing testable code, and unit tests that cover the complex, critical business logic.
Available with all product plans.
You can find more information about the Cover IntelliJ Plugin in our Getting Started Documentation or our Knowledge Base.
Diffblue Cover creates suites of unit tests that run in your continuous integration pipeline between versions and protect against regressions, so you can catch errors faster and earlier in the software development lifecycle. To learn more, see our our product page.
Diffblue Cover helps your team increase automation of your CI pipeline.
For development teams, this:
For DevOps teams, this:
Yes. Diffblue Cover quickly generates tests that will allow you to adopt CI. The generated tests will help developers quickly identify regressions in subsequent commits before committing new versions.
See the product datasheet for more information.
See our case study on how Goldman Sachs has benefited from using Diffblue Cover to increase coverage and create a safety net against regressions.
Diffblue regression suites are maintained automatically and updated with each new code version to capture the current behavior of the code.
Diffblue Cover AI analyzes your code and writes Java unit tests that run in a CI pipeline after each commit. Cover’s tests:
No. Diffblue Cover is meant to complement your own unit tests and help you catch regressions.
Developers write individual unit tests to test specific functionality. Diffblue regression suites are generated automatically to help find regressions early in the development cycle. Find out more in our Unit Regression Tests eBook.
