Some tests located require a connection to Oracle database to execute. To configure a connection, copy System.Data.OracleClient_test_default.dll.config.example to System.Data.OracleClient_test_default.dll.config and fill in the OracleConnectionString with appropriate values. If no System.Data.OracleClient_test_default.dll.config is present, those tests will be ignored. To test .Net 2.0 profile, copy System.Data.OracleClient_test_default.dll.config to System.Data.OracleClient_test_net_2_0.dll.config and launch tests with PROFILE=net_2_0 .