> For the complete documentation index, see [llms.txt](https://cover-docs.diffblue.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cover-docs.diffblue.com/get-started/diffblue-learning/developer.md).

# Developer

Detailed learning paths targeted at developers:

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><img src="/files/YTAmGIL0J9z35xc4ToLw" alt="" data-size="original"> <strong>Unit Tests - IDE</strong></td><td>Use Diffblue Cover within the IntelliJ IDE to create tests for your methods and classes.</td><td></td><td><a href="/pages/glzIcKFv6sW49Nao69mC">/pages/glzIcKFv6sW49Nao69mC</a></td></tr><tr><td><img src="/files/YTAmGIL0J9z35xc4ToLw" alt="" data-size="original"> <strong>Unit Tests - CLI</strong></td><td>Use Diffblue Cover from a command line to create tests for your projects.</td><td></td><td><a href="/pages/Eyttr3yp8ImRirfON43W">/pages/Eyttr3yp8ImRirfON43W</a></td></tr><tr><td><img src="/files/YTAmGIL0J9z35xc4ToLw" alt="" data-size="original"> <strong>Test Coverage</strong></td><td>Create coverage reports and improve test coverage.</td><td></td><td><a href="/pages/hiaZKocqUOo7clxq7Vj8">/pages/hiaZKocqUOo7clxq7Vj8</a></td></tr></tbody></table>

#### Achievements:

* [x] Understand Diffblue Cover specifications and requirements and how to configure your projects for automated test writing.
* [x] Know how to use Diffblue Cover to write tests for your projects - basic and advanced concepts.
* [x] Understand output codes and how to resolve them.
* [x] Know how to improve test coverage for your code base, including automated refactoring.