How to test DbProviderFactories using nunit .

i want to test the bellow method

    private DbConnection GetConnection()
     {
        var dbProviderFactory = DbProviderFactories.GetFactory(_name);

            try
            {
                var dbConnection = dbProviderFactory.CreateConnection();
                if (dbConnection == null) return null;
                dbConnection.ConnectionString = _connectionString;
                return dbConnection;
            }
            catch (Exception)
            {
                return null;
            }
        }

in this method mainly im doing to get dbresource details and connection status the code is working fine and now im facing issues with unit test . wanna write test cases for this peace of code , in that i used DbProviderFactories , i want mock the DbProviderFactories class since its a static class and i cant pass through constructor and i cant inject also . how can i test my code / how can make mock for DbProviderFactories?

TIA