19 files declare their use of MigrateDrupalTestBase

DestinationCategoryTest.php in core/modules/migrate_drupal/tests/src/Kernel/Plugin/migrate/DestinationCategoryTest.php
FilterFormatPermissionTest.php in core/modules/filter/tests/src/Kernel/Migrate/d6/FilterFormatPermissionTest.php
MigrateAggregatorStubTest.php in core/modules/aggregator/tests/src/Kernel/Migrate/MigrateAggregatorStubTest.php
MigrateBlockContentStubTest.php in core/modules/block_content/tests/src/Kernel/Migrate/MigrateBlockContentStubTest.php
MigrateCommentStubTest.php in core/modules/comment/tests/src/Kernel/Migrate/MigrateCommentStubTest.php
MigrateDrupal6TestBase.php in core/modules/migrate_drupal/tests/src/Kernel/d6/MigrateDrupal6TestBase.php
MigrateDrupal6TestBase.php in core/modules/aggregator/tests/src/Kernel/Migrate/d6/MigrateDrupal6TestBase.php
MigrateDrupal7TestBase.php in core/modules/migrate_drupal/tests/src/Kernel/d7/MigrateDrupal7TestBase.php
MigrateDrupal7TestBase.php in core/modules/aggregator/tests/src/Kernel/Migrate/d7/MigrateDrupal7TestBase.php
MigrateDrupalTestBase.php in core/modules/tracker/tests/src/Kernel/Migrate/d7/MigrateDrupalTestBase.php
MigrateFileStubTest.php in core/modules/file/tests/src/Kernel/Migrate/MigrateFileStubTest.php
MigrateMenuLinkContentStubTest.php in core/modules/menu_link_content/tests/src/Kernel/Migrate/MigrateMenuLinkContentStubTest.php
MigrateNodeStubTest.php in core/modules/node/tests/src/Kernel/Migrate/MigrateNodeStubTest.php
MigrateRdfMappingTest.php in core/modules/rdf/tests/src/Kernel/Migrate/d7/MigrateRdfMappingTest.php
MigrateShortcutStubTest.php in core/modules/shortcut/tests/src/Kernel/Migrate/MigrateShortcutStubTest.php
MigrateTaxonomyTermStubTest.php in core/modules/taxonomy/tests/src/Kernel/Migrate/MigrateTaxonomyTermStubTest.php
MigrateUserStubTest.php in core/modules/user/tests/src/Kernel/Migrate/MigrateUserStubTest.php
MigrationLabelExistTest.php in core/modules/migrate_drupal_ui/tests/src/Kernel/MigrationLabelExistTest.php
MigrationProvidersExistTest.php in core/modules/migrate/tests/src/Kernel/Plugin/MigrationProvidersExistTest.php

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