Ejemplo n.º 1
0
        public void ElementAtOrDefault_InvalidIndex()
        {
            TypedTableBase <DataRow> table = new TestTypedTable <DataRow>();

            table.Columns.Add();
            DataRow zero = table.Rows.Add(0);

            Assert.Same(default(DataRow), table.ElementAtOrDefault(1));
        }
        private (TypedTableBase <DataRow> table, DataRow one, DataRow two, DataRow three) InstantiateTable()
        {
            TypedTableBase <DataRow> table = new TestTypedTable <DataRow>();

            table.Columns.Add();
            DataRow two   = table.Rows.Add(2);
            DataRow one   = table.Rows.Add(1);
            DataRow three = table.Rows.Add(3);

            return(table, one, two, three);
        }
        public void Where_SuccessfullyFindRow()
        {
            TypedTableBase <DataRow> table = new TestTypedTable <DataRow>();

            table.Columns.Add();
            DataRow two = table.Rows.Add("two");

            EnumerableRowCollection <DataRow> source = table.Cast <DataRow>();

            var filtered = source.Where(row => "two".Equals(row.ItemArray[0]));

            // Check that only one row matches predicate condition
            Assert.Equal(1, filtered.Count());

            // Check that matching row is the same object as the second data row
            Assert.Same(two, filtered.First());
        }
Ejemplo n.º 4
0
        public void Select_ToListOfInts()
        {
            TypedTableBase <DataRow> table = new TestTypedTable <DataRow>();

            table.Columns.Add();
            table.Rows.Add(10);
            table.Rows.Add(5);

            var chosen = table.Select(row => int.Parse((string)row.ItemArray[0]));
            int total  = 0;

            foreach (int num in chosen)
            {
                total += num;
            }
            Assert.Equal(15, total);
        }