[](https://github.com/UnitTestBot/UTBotJava/actions/workflows/build-and-run-tests.yml)
[](https://github.com/UnitTestBot/UTBotJava/actions/workflows/publish-plugin-and-cli.yml)
👉 Find UTBot Java on [JetBrains Marketplace](https://plugins.jetbrains.com/plugin/19445-unittestbot).
👉 Visit the [official UTBot website](https://www.utbot.org/).
# What is UTBot Java?
UTBot Java is the tool for **automated unit test generation**. It produces ready-to-use test cases for Java — with valid inputs and comments. It can even predict whether the tests fail or pass. You can analyze them, run them, show coverage — as if you've created them personally.
The **symbolic execution engine** paired with a **smart fuzzing technique** constitutes the core of UTBot Java. It helps to **find errors** and **prevent regressions** in the code in a much more efficient way — UTBot Java **maximizes path coverage** while **minimizing the number of tests and false positives**.
UTBot Java represents all the test summaries in a **human-readable format**. The intelligible test method names and comments help you to control the whole testing process. Test failed? The summary refers you to the related branch or the condition under test.
# Get started
Try the **[online demo](https://www.utbot.org/utbot/)** to generate unit tests with one click.
Get to know the **full version** of UTBot Java plugin with this quick guide:
Install UTBot Java plugin for IntelliJ IDEA
Try the most straightforward path to start using UTBot plugin.
1. Open your IntelliJ IDEA. If you don't have one, get it from [JetBrains](https://www.jetbrains.com/idea/download/#section=windows).
2. Go to **File → Settings... → Plugins → Marketplace**.
3. In the search field type *UTBot* — you'll see the UnitTestBot plugin page.
4. Press the **Install** button and wait until it changes to **Installed**, then click **OK**.
Now you can find the UTBot plugin enabled in the **File → Settings → Plugins** window.
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Generate tests with default configuration
Proceed to generating unit tests for the existing Java project. If you don't have one, create it using the [JetBrains tutorial](https://www.jetbrains.com/help/idea/creating-and-running-your-first-java-application.html).
1. Open your Java project in IntelliJ IDEA.
2. Right-click the required package or a file in the Project tool window, scroll the menu down to the bottom and choose **Create Tests with UTBot...**
3. In the **Generate tests with UTBot** window tick the classes or methods you'd like to cover with unit tests and press **OK**.
Now you can see the resulting test class or classes in the Editor tool window.
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Make use of generated tests
What can you do with the output?
1. To *find and fix the errors* in your code:
* Run the generated tests: right-click the test class or a folder with tests and choose **Run**.
* In the Run tool window you can see the tests failed with the brief failure explanation.
* Fix your errors if needed.
2. To *prevent regressions*:
* Having your errors fixed, run the tests again. "Passed"? Commit them as the regression suite.
* Introduce changes in the code and run your tests as often as needed!
* Tests failed? Decide whether it is a bug or a feature and generate new tests if necessary.
3. To *view coverage*:
Right-click the test class, choose **More Run/Debug → Run ... with Coverage**.
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# Contribute to UTBot Java
UTBot Java is an open source project. We welcome everyone who wants to make UTBot Java better — introduce a new feature or report a bug. We have only one kind request for our contributors: we expect you to prove the necessity and quality of the suggested changes.
How can you do this? Refer to our [Contributing guide](https://github.com/UnitTestBot/UTBotJava/blob/main/CONTRIBUTING.md).
Feel free to join the [Discussions](https://github.com/UnitTestBot/UTBotJava/discussions)!
And thank you for your time and effort! ⭐
# Find support
Having troubles with using UTBot Java? Contact us [directly](https://www.utbot.org/contact).
# Find more UTBot products
[UTBot Cpp](https://github.com/UnitTestBot/UTBotCpp) — try it yourself and tell your friends: it is the tool for automated unit test generation developed especially for C/C++.
You are welcome to [contribute](https://github.com/UnitTestBot/UTBotCpp/blob/main/CONTRIBUTING.md) to it too!