Diffblue Cover vs Virtuoso
Diffblue Cover
diffblue.com
Virtuoso
virtuosoqa.comSide by side
| Figure | Diffblue Cover | Virtuoso |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | Yes | — |
| macOS | Yes | — |
| Linux | Yes | — |
| API | — | Yes |
| Self-hosted | Yes | — |
| Plans published | 4 | 1 |
| Spec score · AI Software Testing Tools | 8.2 (#10) | 6.7 (#31) |
| Spec score · Ai Code Testing | 8.2 (#9) | 6.7 (#19) |
| Spec score · AI software testing tools | 7.7 (#21) | 6.9 (#32) |
| Company | Diffblue was founded in 2016 as a spin-out of the University of Oxford and is headquartered in Oxford. | Virtuoso QA says it was founded in 2017 by Andrew Doughty, Adil Mohammed and Hugo Farinha. |
| Founded | 2016 | 2017 |
| Headquarters | Oxford, United Kingdom | London, United Kingdom |
| Purpose | Diffblue Cover automatically writes human-like Java unit tests for Java and Kotlin projects. | Touchstone turns business requirements into tests for browser based applications and records evidence for software releases. |
| Support | Community support is provided through the Community forum, while more comprehensive support is included with Teams and Enterprise editions. | Every plan includes fast-track setup, structured onboarding, migration support, enterprise integrations and professional support; Capacity and Enterprise also include a dedicated success manager and technical architect. |
Plans
Diffblue Cover
- Community EditionFree
- Free trialFree
- Enterprise EditionPriced on request
- Teams EditionPriced on request
In their own words
Diffblue Cover
Diffblue Cover automatically generates unit tests for Java and Kotlin projects. The maker says generated tests compile, run, and check the code's current behavior. Cover is offered as an IntelliJ plugin, a command-line tool, and a CI pipeline integration, with supported environments including GitHub, GitLab, Maven, Jenkins, Azure, and AWS. Cover Reports visualizes test coverage, coverage risk, testability, and code complexity. Cover Optimize selects unit tests needed to validate changes and is integrated into Cover CLI and Cover Pipeline. Cover Refactor can suggest and apply Java refactorings intended to improve observability and testability. The maker says Cover runs locally in the customer's environment, needs no cloud service, and sends no data outside the organization. Projects must use Java 8, 11, 17, or 21, or Kotlin; use Maven 3.2.5+ or Gradle 4.9+; and compile without failing unit tests. JUnit and TestNG are supported. A free Community Edition and a free 14-day trial are listed. Each use requires a remote license-server check; offline activation is available only for Enterprise Edition through the CLI.