System.Data.Tests.DataColumnCollectionTest.Clear_ExpressionColumn C# (CSharp) Method

        public void Clear_ExpressionColumn()
        {
            DataTable table = new DataTable("test");
            table.Columns.Add("col1", typeof(int));
            table.Columns.Add("col2", typeof(int), "sum(col1)");

            //shudnt throw an exception.
            table.Columns.Clear();
            Assert.Equal(0, table.Columns.Count);
        }