> For the complete documentation index, see [llms.txt](https://metaverse-imagen.gitbook.io/ai-tools-research/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://metaverse-imagen.gitbook.io/ai-tools-research/ai-tools-main-categories/programming-and-code/testing-and-qa/evosuite.md).

# EvoSuite

EvoSuite is a tool that automatically generates unit tests with assertions for classes written in Java code. It uses an evolutionary algorithm to generate JUnit tests, which are optimized for code coverage and enhanced with regression assertions.

{% embed url="<https://www.evosuite.org/>" %}
<https://www.evosuite.org/>
{% endembed %}

Evosuite is an open source project started in 2012. They built a reinforcement **learning research project** originally for a number of academics at Sheffield University and elsewhere. They built Evosuite and they used reinforcement learning to find unit tests.

EvoSuite can be used to generate tests for a variety of purposes, including:

* **Unit testing:** EvoSuite can be used to generate unit tests for individual classes or packages. This can help to ensure that the code is well-tested and that new changes do not introduce regressions.
* **Mutation testing:** EvoSuite can be used to perform mutation testing, which is a technique for finding bugs in code by injecting mutations into the code and then running the tests to see if the mutations cause the tests to fail.
* **Performance testing:** EvoSuite can be used to generate performance tests for Java code. This can help to identify bottlenecks in the code and to ensure that the code performs as expected.

EvoSuite is a powerful tool that can be used to automate the generation of unit tests and to improve the quality of Java code. It is available for free under the Eclipse Public License.

Here are some of the benefits of using EvoSuite:

* **Increased code coverage:** EvoSuite can help to increase the code coverage of your tests, which can help to ensure that your code is well-tested.
* **Improved bug detection:** EvoSuite can help to find bugs in your code that would not be found by manual testing.
* **Reduced development time:** EvoSuite can help to reduce the amount of time it takes to develop and maintain your tests.
* **Improved productivity:** EvoSuite can help to improve your productivity by automating the generation of tests.

If you are looking for a tool to help you improve the quality of your Java code, then EvoSuite is a good option to consider.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://metaverse-imagen.gitbook.io/ai-tools-research/ai-tools-main-categories/programming-and-code/testing-and-qa/evosuite.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.