# Unit tests (CLI)

Use Diffblue Cover from a command line to create tests for your projects.

{% hint style="info" %}
Before starting this learning path, we recommend that you first complete the [Cover CLI Get Started](/get-started/diffblue-learning/get-started/cover-cli-command-line.md) path.
{% endhint %}

## Start here...

<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden></th><th data-hidden data-card-cover data-type="files"></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Writing Tests</strong></td><td>[2 min read]</td><td>A summary of how to write tests using Cover CLI.</td><td></td><td></td><td><a href="/pages/EKNY548nafA7gx7DaWbo">/pages/EKNY548nafA7gx7DaWbo</a></td></tr><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Command Summary</strong></td><td>[2 min read]</td><td>A summary of the core Cover CLI commands and arguments.</td><td><strong>Title</strong></td><td></td><td><a href="/pages/95EqCHC4eyRtPzJQGww4">/pages/95EqCHC4eyRtPzJQGww4</a></td></tr><tr><td><img src="/files/EgdOkFqZ2bmomIoQMb10" alt="" data-size="original"> <strong>Cover CLI Overview</strong></td><td>[29 min watch]</td><td>Get a complete overview of Cover CLI with this tutorial video.</td><td></td><td></td><td><a href="https://youtu.be/LPHw0JNcMyw">https://youtu.be/LPHw0JNcMyw</a></td></tr><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Commands &#x26; Arguments</strong></td><td>[reference]</td><td>Reference topic - details of all available commands and arguments.</td><td><strong>Title</strong></td><td></td><td><a href="/pages/ZdPmy6CyXPLH7MPm8dEJ">/pages/ZdPmy6CyXPLH7MPm8dEJ</a></td></tr><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Test Examples</strong></td><td>[5 min read]</td><td>Unit test examples of varying complexity.</td><td></td><td></td><td><a href="/pages/RGdoN6c1wyxTRDjpc82E">/pages/RGdoN6c1wyxTRDjpc82E</a></td></tr><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Project Configuration &#x26; Dependencies</strong></td><td>[9 topics]</td><td>Making sure your project configuration and dependencies meet the requirements needed to use Diffblue Cover.</td><td></td><td></td><td><a href="/pages/sv4K7V9vpMCckYsuwW2O">/pages/sv4K7V9vpMCckYsuwW2O</a></td></tr><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Preflight Checks</strong></td><td>[5 min read]</td><td>Diffblue Cover's preflight features for checking the suitability of your environment.</td><td></td><td></td><td><a href="/pages/0A3dPGLMragBjW8cL0xL">/pages/0A3dPGLMragBjW8cL0xL</a></td></tr><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Output Codes</strong></td><td>[5 reference topics]</td><td>Reference details - Diffblue Cover output codes, messages, and descriptions.</td><td></td><td></td><td><a href="/pages/DiI0TJu4KSoTEyFvEX8o">/pages/DiI0TJu4KSoTEyFvEX8o</a></td></tr><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Specs &#x26; Reqs</strong></td><td>[reference topic]</td><td>Reference details - Diffblue Cover specifications and requirements.</td><td></td><td></td><td><a href="/pages/tOE4Og4ANV8WqleRsURm">/pages/tOE4Og4ANV8WqleRsURm</a></td></tr></tbody></table>

## Know more...

<table data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden></th><th data-hidden data-card-cover data-type="files"></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Output Codes</strong></td><td>[5 reference topics]</td><td>Reference details - Diffblue Cover output codes, messages, and descriptions.</td><td></td><td></td><td><a href="/pages/DiI0TJu4KSoTEyFvEX8o">/pages/DiI0TJu4KSoTEyFvEX8o</a></td></tr><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Working With Output Codes</strong></td><td>[12 topics]</td><td>Useful hints and tips to help resolve a range of output codes.</td><td><strong>Title</strong></td><td></td><td><a href="/pages/yKUcT5QPiTZdTHVPU3Rg">/pages/yKUcT5QPiTZdTHVPU3Rg</a></td></tr><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Partial Tests</strong></td><td>[4 min read]</td><td>Creating partial (incomplete) tests.</td><td></td><td></td><td><a href="/pages/vGoqckEDZNJWv5QqkBx3">/pages/vGoqckEDZNJWv5QqkBx3</a></td></tr><tr><td><img src="/files/EgdOkFqZ2bmomIoQMb10" alt="" data-size="original"> <strong>Custom Inputs</strong></td><td>[22 min watch]</td><td>Demonstrating how to provide custom inputs to optimize test creation.</td><td><strong>Title</strong></td><td></td><td><a href="https://youtu.be/1xRWbErG92c">https://youtu.be/1xRWbErG92c</a></td></tr><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Custom Inputs</strong></td><td>[12 min read]</td><td>Provide custom inputs to optimize test creation.</td><td></td><td></td><td><a href="/pages/9GUcfHWETFSaKnVXPnwi">/pages/9GUcfHWETFSaKnVXPnwi</a></td></tr><tr><td><img src="/files/EgdOkFqZ2bmomIoQMb10" alt="" data-size="original"> <strong>Custom Test Setup</strong></td><td>[31 min watch]</td><td>Demonstrating how to provide a custom base class to optimize test creation.</td><td></td><td></td><td><a href="https://youtu.be/TJnx2xPlL_4">https://youtu.be/TJnx2xPlL_4</a></td></tr><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Custom Test Setup</strong></td><td>[6 min read]</td><td>Provide a custom base class to optimize test creation.</td><td></td><td></td><td><a href="/pages/TKmbwV26I6Y7CaVHLhK4">/pages/TKmbwV26I6Y7CaVHLhK4</a></td></tr><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Test Naming</strong></td><td>[4 min read]</td><td>Test naming config and defaults.</td><td></td><td></td><td><a href="/pages/iZEt3IC3PyGqtP7S14Gi">/pages/iZEt3IC3PyGqtP7S14Gi</a></td></tr><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Test Formatting</strong></td><td>[4 min read]</td><td>Configure the format of tests written by Cover CLI.</td><td></td><td></td><td><a href="/pages/o1kIa5S7gqF52YfR66cG">/pages/o1kIa5S7gqF52YfR66cG</a></td></tr><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Test Insertion Order</strong></td><td>[2 min read]</td><td>Test method ordering in test classes.</td><td></td><td></td><td><a href="/pages/JHe8l3rqwenO2s7aobx6">/pages/JHe8l3rqwenO2s7aobx6</a></td></tr><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Refactor</strong></td><td>[4 min read]</td><td>Use Cover Refactor to automatically suggest and apply refactorings to your code to help improve test coverage.</td><td></td><td></td><td><a href="/pages/c4uYoIUP7mR49JMKIW6c">/pages/c4uYoIUP7mR49JMKIW6c</a></td></tr></tbody></table>

## Next steps...

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden></th><th data-hidden data-card-cover data-type="files"></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><img src="/files/P7llAlB8ABjjnHkNT6Mp" alt="" data-size="original"> <strong>Cover CLI Admin</strong></td><td>Manage and maintain Cover CLI.</td><td></td><td></td><td><a href="/pages/0nGy7Xa1Kf88Z0ytdotP">/pages/0nGy7Xa1Kf88Z0ytdotP</a></td></tr><tr><td><img src="/files/P7llAlB8ABjjnHkNT6Mp" alt="" data-size="original"> <strong>Test Coverage</strong></td><td>Improve and manage test coverage.</td><td></td><td></td><td><a href="/pages/cQ31dMgQOiRGVMK9fAOj">/pages/cQ31dMgQOiRGVMK9fAOj</a></td></tr><tr><td><img src="/files/TDiM7GwAQ6Yb4XgSNlcN" alt="" data-size="original"> <strong>Tutorials</strong></td><td>A range of tutorials covering topics such as implementing a code change and working with Kotlin projects.</td><td></td><td></td><td><a href="/pages/WQx0QJbFmzAPzxVf74c3">/pages/WQx0QJbFmzAPzxVf74c3</a></td></tr></tbody></table>


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