System.Data.Tests.DataSetTest2.Merge_MissingConstraint C# (CSharp) Method

        public void Merge_MissingConstraint()
        {
            DataSet ds = new DataSet();
            DataTable table1 = ds.Tables.Add("table1");
            DataTable table2 = ds.Tables.Add("table2");
            table1.Columns.Add("col1", typeof(int));
            table2.Columns.Add("col1", typeof(int));

            try
            {
                DataSet ds1 = ds.Copy();
                DataSet ds2 = ds.Copy();
                ds2.Tables[0].Constraints.Add("uc", ds2.Tables[0].Columns[0], false);
                ds1.Merge(ds2, true, MissingSchemaAction.Error);
                Assert.False(true);
            }
            catch (DataException e)
            {
            }

            try
            {
                DataSet ds1 = ds.Copy();
                DataSet ds2 = ds.Copy();
                ds2.Tables[0].Constraints.Add("fk", ds2.Tables[0].Columns[0], ds2.Tables[1].Columns[0]);
                ds1.Tables[0].Constraints.Add("uc", ds1.Tables[0].Columns[0], false);
                ds1.Merge(ds2, true, MissingSchemaAction.Error);
                Assert.False(true);
            }
            catch (DataException e)
            {
            }

            try
            {
                DataSet ds1 = ds.Copy();
                DataSet ds2 = ds.Copy();
                ds2.Relations.Add("rel", ds2.Tables[0].Columns[0], ds2.Tables[1].Columns[0], false);
                ds1.Merge(ds2, true, MissingSchemaAction.Error);
                Assert.False(true);
            }
            catch (ArgumentException e)
            {
            }
        }