System.Data.Tests.DataTableTest5.XmlTest16 C# (CSharp) Method

        public void XmlTest16()
        {
            DataSet ds = new DataSet();
            DataTable parent = new DataTable("Parent");
            parent.Columns.Add(new DataColumn("col1", typeof(int)));
            parent.Columns.Add(new DataColumn("col2", typeof(string)));
            parent.Columns[0].Unique = true;

            DataTable child1 = new DataTable("Child1");
            child1.Columns.Add(new DataColumn("col3", typeof(int)));
            child1.Columns.Add(new DataColumn("col4", typeof(string)));
            child1.Columns.Add(new DataColumn("col5", typeof(int)));
            child1.Columns[2].Unique = true;

            DataTable child2 = new DataTable("Child2");
            child2.Columns.Add(new DataColumn("col6", typeof(int)));
            child2.Columns.Add(new DataColumn("col7"));

            parent.Rows.Add(new object[] { 1, "P_" });
            parent.Rows.Add(new object[] { 2, "P_" });

            child1.Rows.Add(new object[] { 1, "C1_", 3 });
            child1.Rows.Add(new object[] { 1, "C1_", 4 });
            child1.Rows.Add(new object[] { 2, "C1_", 5 });
            child1.Rows.Add(new object[] { 2, "C1_", 6 });

            child2.Rows.Add(new object[] { 3, "C2_" });
            child2.Rows.Add(new object[] { 3, "C2_" });
            child2.Rows.Add(new object[] { 4, "C2_" });
            child2.Rows.Add(new object[] { 4, "C2_" });
            child2.Rows.Add(new object[] { 5, "C2_" });
            child2.Rows.Add(new object[] { 5, "C2_" });
            child2.Rows.Add(new object[] { 6, "C2_" });
            child2.Rows.Add(new object[] { 6, "C2_" });

            ds.Tables.Add(parent);
            ds.Tables.Add(child1);
            ds.Tables.Add(child2);

            DataRelation relation = new DataRelation("Relation1", parent.Columns[0], child1.Columns[0]);
            parent.ChildRelations.Add(relation);

            relation = new DataRelation("Relation2", child1.Columns[2], child2.Columns[0]);
            child1.ChildRelations.Add(relation);

            using (FileStream stream = new FileStream(_tempFile, FileMode.Create))
            {
                WriteXmlSerializable(stream, parent);
            }

            DataTable table = new DataTable();
            ReadXmlSerializable(_tempFile, table);

            Assert.Equal("Parent", table.TableName);
            Assert.Equal(2, table.Columns.Count);
            Assert.Equal(2, table.Rows.Count);
            Assert.Equal(typeof(int), table.Columns[0].DataType);
            Assert.Equal(typeof(string), table.Columns[1].DataType);
            Assert.Equal(1, table.Constraints.Count);
            Assert.Equal(typeof(UniqueConstraint), table.Constraints[0].GetType());
        }
    }