# Cover Plugin settings

To modify the Diffblue Cover settings in IntelliJ, go to `Diffblue > Change Settings` and update as needed.

<figure><img src="/files/vh0YvbgIeqZ9c3rPHwOZ" alt=""><figcaption></figcaption></figure>

* **Test Framework**: Select the test framework used for your project - `JUnit 4`, `JUnit 5`, `TestNG`, or `Auto-Detect`.
* **Test Creation**:
  * Enable/disable the use of `Cover all enum values` (ensure all enum values are covered, when an enum is used as a method argument or return value) - see [Covering all enum values](/features/cover-plugin/writing-tests/covering-all-enum-values.md).
  * Enable/disable the use of `Ignore existing coverage` (default: off) - see [Test Coverage Optimizations](/features/cover-cli/writing-tests/test-coverage-optimizations.md)
* **Partial Test Creation**: Enable/disable the creation of partial tests for specific scenarios - see [Creating partial tests](/features/cover-plugin/writing-tests/partial-tests.md).
* **Test Review**: Enable manual review and editing of tests before they are added to your codebase - see [Test Review](/features/cover-plugin/writing-tests/test-review.md)
* **Test Naming**: Define the test class and test method naming conventions used for tests written by Diffblue Cover - see [Test Naming](/features/cover-plugin/cover-plugin-settings/test-naming.md).
* **Test Formatting**: Select the test style or specific formatting options for tests written by Diffblue Cover - see [Test Formatting](/features/cover-plugin/cover-plugin-settings/test-formatting.md).
* **Spring**: Set your Spring configuration options (mocking, Spring contexts, and active profiles) - see [Spring configuration options](/features/cover-plugin/cover-plugin-settings/spring-configuration-options.md).
* **Method Annotations**: Suppress compiler warnings for test methods written by Diffblue Cover - see [Method Annotations](/features/cover-plugin/cover-plugin-settings/method-annotations.md). This is especially useful when using SonarQube - see [Using SonarQube with Cover Plugin](/features/cover-plugin/cover-plugin-admin/using-sonarqube-with-cover-plugin.md).
* **Sandboxed Environment**: Enable (default) or disable the Diffblue Sandbox and/or define a list of allowed JNI libraries (if needed) - see [Diffblue Sandbox](/features/cover-plugin/writing-tests/diffblue-sandbox.md).

{% hint style="info" %}
In addition to these settings, the host environment can be configured in several ways which are described in [Environment Configuration](/features/cover-cli/environment-configuration.md)
{% endhint %}


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