freedb | lightweight solution to use a cloud Key | Runtime Evironment library

Occasionally, the clean-up code for the tests that use LocalDB is not run (perhaps when tests are being cancelled). The result is a lot of garbage local db databases.

I get an error like this when running tests that attempt to create another localDB

System.Data.SqlClient.SqlException: Unable to create/attach any new database because the number of existing databases has reached the maximum number allowed: 32765. ved System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) ved System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) ved System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) ved System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) ved System.Data.SqlClient.SqlCommand.RunExecuteNonQueryTds(String methodName, Boolean async, Int32 timeout, Boolean asyncWrite) ved System.Data.SqlClient.SqlCommand.InternalExecuteNonQuery(TaskCompletionSource`1 completion, String methodName, Boolean sendToPipe, Int32 timeout, Boolean& usedCache, Boolean asyncWrite, Boolean inRetry) ved System.Data.SqlClient.SqlCommand.ExecuteNonQuery() ved Dapper.SqlMapper.ExecuteCommand(IDbConnection cnn, CommandDefinition& command, Action`2 paramReader) ved Dapper.SqlMapper.ExecuteImpl(IDbConnection cnn, CommandDefinition& command) ved Dapper.SqlMapper.Execute(IDbConnection cnn, String sql, Object param, IDbTransaction transaction, Nullable`1 commandTimeout, Nullable`1 commandType)

The test-clean-up is something like this in each test class (using xunit)