protected override U4Pair RunProxiedDbDataAdapter(List <TestTable> randomDataSource, FakeProxiedDbDataAdapter adapter) { using (FakeDbCommandBuilder cmdBuilder = new FakeDbCommandBuilder(adapter)) { DataSet dataSet = new DataSet(); // `.Fill` returns the number of rows in the first table, not any subsequent tables. Yes, that's silly. Int32 rowsInFirstTable = adapter.Fill(dataSet); rowsInFirstTable.ShouldBe(40); // Dictionary <String, Int32> rowsModified = DataTableMethods.MutateDataSet(dataSet); // adapter.UpdateCommand = cmdBuilder.GetUpdateCommand(); adapter.UpdateCommand.NonQueryResultRowCountValue = (cmd) => DataTableMethods.GetUpdateStatementNonQueryResultRowCountValue(expectedTableName: "TODO", adapter, dataSet, cmd, rowsModified); Int32 updatedRows = adapter.Update4(dataSet, srcTable: "RandomDataTable_2"); // updatedRows.ShouldBe( rowsModified ); return(dataSet, rowsModified, updatedRows); } }