41 files declare their use of AssertPageCacheContextsAndTagsTrait in Drupal 9

AccessDeniedTest.php in core/modules/system/tests/src/Functional/System/AccessDeniedTest.php

AccessRoleTest.php in core/modules/user/tests/src/Functional/Views/AccessRoleTest.php

AssertViewsCacheTagsTrait.php in core/modules/views/src/Tests/AssertViewsCacheTagsTrait.php

CacheabilityMetadataConfigOverrideIntegrationTest.php in core/modules/config/tests/src/Functional/CacheabilityMetadataConfigOverrideIntegrationTest.php

CacheWebTest.php in core/modules/views/tests/src/Functional/Plugin/CacheWebTest.php

CommentRssTest.php in core/modules/comment/tests/src/Functional/CommentRssTest.php

ContactPersonalTest.php in core/modules/contact/tests/src/Functional/ContactPersonalTest.php

ContentTranslationUITestBase.php in core/modules/content_translation/tests/src/Functional/ContentTranslationUITestBase.php

ContentTranslationWorkflowsTest.php in core/modules/content_translation/tests/src/Functional/ContentTranslationWorkflowsTest.php

ContextualFiltersBlockContextTest.php in core/modules/views/tests/src/Functional/Plugin/ContextualFiltersBlockContextTest.php

ContextualLinksTest.php in core/modules/layout_builder/tests/src/FunctionalJavascript/ContextualLinksTest.php

DisplayBlockTest.php in core/modules/block/tests/src/Functional/Views/DisplayBlockTest.php

DisplayPageWebTest.php in core/modules/views/tests/src/Functional/Plugin/DisplayPageWebTest.php

DisplayPathTest.php in core/modules/views_ui/tests/src/Functional/DisplayPathTest.php

EngineTwigTest.php in core/modules/system/tests/src/Functional/Theme/EngineTwigTest.php

EntityBundleListCacheTest.php in core/tests/Drupal/FunctionalTests/Entity/EntityBundleListCacheTest.php

ExposedFormTest.php in core/modules/views/tests/src/Functional/Plugin/ExposedFormTest.php

FieldWebTest.php in core/modules/views/tests/src/Functional/Handler/FieldWebTest.php

HistoryTest.php in core/modules/history/tests/src/Functional/HistoryTest.php

ImageFieldDisplayTest.php in core/modules/image/tests/src/Functional/ImageFieldDisplayTest.php

MediaAccessTest.php in core/modules/media/tests/src/Functional/MediaAccessTest.php

NodeAccessCacheabilityTest.php in core/modules/node/tests/src/Functional/NodeAccessCacheabilityTest.php

NodeBlockFunctionalTest.php in core/modules/node/tests/src/Functional/NodeBlockFunctionalTest.php

NodeTypeTest.php in core/modules/node/tests/src/Functional/NodeTypeTest.php

PageCacheTagsIntegrationTest.php in core/modules/page_cache/tests/src/Functional/PageCacheTagsIntegrationTest.php

PageCacheTest.php in core/modules/page_cache/tests/src/Functional/PageCacheTest.php

PageNotFoundTest.php in core/modules/system/tests/src/Functional/System/PageNotFoundTest.php

PagerTest.php in core/modules/views/tests/src/Functional/Plugin/PagerTest.php

PagerTest.php in core/modules/system/tests/src/Functional/Pager/PagerTest.php

RenderWebTest.php in core/modules/system/tests/src/Functional/Common/RenderWebTest.php

SearchPageCacheTagsTest.php in core/modules/search/tests/src/Functional/SearchPageCacheTagsTest.php

ShortcutCacheTagsTest.php in core/modules/shortcut/tests/src/Functional/ShortcutCacheTagsTest.php

StatisticsReportsTest.php in core/modules/statistics/tests/src/Functional/StatisticsReportsTest.php

StyleSerializerTest.php in core/modules/rest/tests/src/Functional/Views/StyleSerializerTest.php

TermAccessTest.php in core/modules/taxonomy/tests/src/Functional/TermAccessTest.php

TokenReplaceWebTest.php in core/modules/system/tests/src/Functional/System/TokenReplaceWebTest.php

ToolbarCacheContextsTest.php in core/modules/toolbar/tests/src/Functional/ToolbarCacheContextsTest.php

TrackerTest.php in core/modules/tracker/tests/src/Functional/TrackerTest.php

UrlBubbleableMetadataBubblingTest.php in core/modules/system/tests/src/Functional/Render/UrlBubbleableMetadataBubblingTest.php

WorkspaceCacheContextTest.php in core/modules/workspaces/tests/src/Functional/WorkspaceCacheContextTest.php

WorkspaceSwitcherTest.php in core/modules/workspaces/tests/src/Functional/WorkspaceSwitcherTest.php