public void TestGetColumnsListIfDataSetIsNullOrEmpty()
{
IColumnsProvider columnsProvider = new DataSetColumnsProvider(new DataTableColumnsProvider());
Assert.AreEqual(0, columnsProvider.GetColumnsList(null).Count);
Assert.AreEqual(0, columnsProvider.GetColumnsList(new DataSet()).Count);
}
public void TestGetColumnsList()
{
IGenericColumnsProvider <DataTable> dataTableColumnsProvider = Substitute.For <IGenericColumnsProvider <DataTable> >();
var dataTable1 = new DataTable("Table1");
var dataTable2 = new DataTable("Table2");
var dataSet = new DataSet
{
Tables = { dataTable1, dataTable2 }
};
IColumnsProvider columnsProvider = new DataSetColumnsProvider(dataTableColumnsProvider);
columnsProvider.GetColumnsList(dataSet);
dataTableColumnsProvider.Received(1).GetColumnsList(dataTable1);
dataTableColumnsProvider.ClearReceivedCalls();
columnsProvider = new DataSetColumnsProvider(dataTableColumnsProvider, "Table2");
columnsProvider.GetColumnsList(dataSet);
dataTableColumnsProvider.Received(1).GetColumnsList(dataTable2);
dataTableColumnsProvider.ClearReceivedCalls();
columnsProvider = new DataSetColumnsProvider(dataTableColumnsProvider, "BadTable");
Assert.AreEqual(0, columnsProvider.GetColumnsList(dataSet).Count);
dataTableColumnsProvider.DidNotReceiveWithAnyArgs().GetColumnsList(Arg.Any <DataTable>());
}
