14 files declare their use of LocalTaskIntegrationTestBase

ActionLocalTasksTest.php in core/modules/action/tests/src/Unit/Menu/ActionLocalTasksTest.php
AggregatorLocalTasksTest.php in core/modules/aggregator/tests/src/Unit/Menu/AggregatorLocalTasksTest.php
BlockContentLocalTasksTest.php in core/modules/block_content/tests/src/Unit/Menu/BlockContentLocalTasksTest.php
BlockLocalTasksTest.php in core/modules/block/tests/src/Unit/Menu/BlockLocalTasksTest.php
BookLocalTasksTest.php in core/modules/book/tests/src/Unit/Menu/BookLocalTasksTest.php
ConfigLocalTasksTest.php in core/modules/config/tests/src/Unit/Menu/ConfigLocalTasksTest.php
ContentTranslationLocalTasksTest.php in core/modules/content_translation/tests/src/Unit/Menu/ContentTranslationLocalTasksTest.php
LanguageLocalTasksTest.php in core/modules/language/tests/src/Unit/Menu/LanguageLocalTasksTest.php
LocaleLocalTasksTest.php in core/modules/locale/tests/src/Unit/Menu/LocaleLocalTasksTest.php
ShortcutLocalTasksTest.php in core/modules/shortcut/tests/src/Unit/Menu/ShortcutLocalTasksTest.php
SystemLocalTasksTest.php in core/modules/system/tests/src/Unit/Menu/SystemLocalTasksTest.php
TaxonomyLocalTasksTest.php in core/modules/taxonomy/tests/src/Unit/Menu/TaxonomyLocalTasksTest.php
UpdateLocalTasksTest.php in core/modules/update/tests/src/Unit/Menu/UpdateLocalTasksTest.php
UserLocalTasksTest.php in core/modules/user/tests/src/Unit/Menu/UserLocalTasksTest.php

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