8 files declare their use of DriverSpecificDatabaseTestBase

ConnectionTest.php in core/modules/sqlite/tests/src/Kernel/sqlite/ConnectionTest.php
ConnectionTest.php in core/modules/mysql/tests/src/Kernel/mysql/ConnectionTest.php
LargeQueryTest.php in core/modules/mysql/tests/src/Kernel/mysql/LargeQueryTest.php
MysqlDriverLegacyTest.php in core/modules/mysql/tests/src/Kernel/mysql/MysqlDriverLegacyTest.php
NextIdTest.php in core/modules/mysql/tests/src/Kernel/mysql/NextIdTest.php
PgsqlDriverLegacyTest.php in core/modules/pgsql/tests/src/Kernel/pgsql/PgsqlDriverLegacyTest.php
SqliteDriverLegacyTest.php in core/modules/sqlite/tests/src/Kernel/sqlite/SqliteDriverLegacyTest.php
SqlModeTest.php in core/modules/mysql/tests/src/Kernel/mysql/SqlModeTest.php

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