22 files declare their use of FieldUiTestTrait

AjaxMaintenanceModeTest.php in core/tests/Drupal/FunctionalJavascriptTests/Ajax/AjaxMaintenanceModeTest.php
CommentNonNodeTest.php in core/modules/comment/tests/src/Functional/CommentNonNodeTest.php
ContactSitewideTest.php in core/modules/contact/tests/src/Functional/ContactSitewideTest.php
ContentTranslationSettingsTest.php in core/modules/content_translation/tests/src/Functional/ContentTranslationSettingsTest.php
DateTimeTest.php in core/modules/system/tests/src/Functional/System/DateTimeTest.php
EntityReferenceAdminTest.php in core/modules/field/tests/src/FunctionalJavascript/EntityReference/EntityReferenceAdminTest.php
EntityReferenceAdminTest.php in core/modules/field/tests/src/Functional/EntityReference/EntityReferenceAdminTest.php
EntityReferenceFieldCreationTest.php in core/modules/system/tests/src/Functional/Entity/EntityReferenceFieldCreationTest.php
FieldUIDeleteTest.php in core/modules/field_ui/tests/src/Functional/FieldUIDeleteTest.php
FileFieldDisplayTest.php in core/modules/file/tests/src/Functional/FileFieldDisplayTest.php
FileFieldWidgetTest.php in core/modules/file/tests/src/FunctionalJavascript/FileFieldWidgetTest.php
FileFieldWidgetTest.php in core/modules/file/tests/src/Functional/FileFieldWidgetTest.php
LayoutBuilderTestBase.php in core/modules/layout_builder/tests/src/Functional/LayoutBuilderTestBase.php
LinkFieldUITest.php in core/modules/link/tests/src/Functional/LinkFieldUITest.php
ManageDisplayTest.php in core/modules/field_ui/tests/src/Functional/ManageDisplayTest.php
ManageDisplayTest.php in core/modules/field_ui/tests/src/FunctionalJavascript/ManageDisplayTest.php
ManageFieldsFunctionalTestBase.php in core/modules/field_ui/tests/src/Functional/ManageFieldsFunctionalTestBase.php
ManageFieldsTest.php in core/modules/field_ui/tests/src/Functional/ManageFieldsTest.php
MediaUiFunctionalTest.php in core/modules/media/tests/src/Functional/MediaUiFunctionalTest.php
MediaUiReferenceWidgetTest.php in core/modules/media/tests/src/Functional/MediaUiReferenceWidgetTest.php
SearchPageCacheTagsTest.php in core/modules/search/tests/src/Functional/SearchPageCacheTagsTest.php
WorkspaceTest.php in core/modules/workspaces/tests/src/Functional/WorkspaceTest.php

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