Change record status: 
Project: 
Introduced in branch: 
8.x
Description: 

DrupalUnitTestBase is a test base class that provides a working in-memory Drupal environment/Kernel. It is not a unit test and is different than the PHPUnit base test class \Drupal\Tests\UnitTestCase (and the deprecated UnitTestBase).

To better explain its purpose, \Drupal\simpletest\DrupalUnitTestBase was renamed to Drupal\simpletest\KernelTestBase.

\Drupal\simpletest\DrupalUnitTestBase was finally removed in this issue: https://www.drupal.org/node/2388043

Impacts: 
Module developers
Updates Done (doc team, etc.)
Online documentation: 
Not done
Theming guide: 
Not done
Module developer documentation: 
Not done
Examples project: 
Not done
Coder Review: 
Not done
Coder Upgrade: 
Not done
Other: 
Other updates done