protected IDataMapper CreateDB_ForQuery(StubResultSet rs)
{
StubDataReader reader = new StubDataReader(rs);
_parameters = MockRepository.GenerateMock<DbParameterCollection>();
_parameters.Expect(p => p.Add(null)).Return(1).IgnoreArguments();
_command = MockRepository.GenerateMock<DbCommand>();
_command.Expect(c => c.ExecuteReader()).Return(reader);
_command.Expect(c => c.Parameters).Return(_parameters);
_command.Expect(c => c.CreateParameter()).Return(new System.Data.SqlClient.SqlParameter()).Repeat.Any();
_command.Stub(c => c.CommandText);
_connection = MockRepository.GenerateMock<DbConnection>();
_connection.Expect(c => c.CreateCommand()).Return(_command);
_command.Expect(c => c.Connection).Return(_connection);
DbProviderFactory dbFactory = MockRepository.GenerateMock<DbProviderFactory>();
dbFactory.Expect(f => f.CreateConnection()).Return(_connection);
return new DataMapper(dbFactory, "connString...");
}