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, Windows and MacOS 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
The IntelliJ IDEA Plugin 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.
The CLI tool works 100% autonomously, configuring itself from your Maven or Gradle environment.
By bringing automation to the test-writing process, the CLI tool provides a speed boost for organizations that are working towards achieving DevOps goals like CI/CD. Since it fits into a CI pipeline, the CLI tool protects the whole codebase from regressions by shifting testing left.
Diffblue Cover's unit regression tests run fast and verify new code changes immediately, helping users detect undesirable changes in the code’s behavior as early as possible, when they're the quickest, easiest, and cheapest to fix. And tests are automatically maintained, saving teams even more time.
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.
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.