System.Data.Tests.DataRowTest2.GetParentRow_ByNameDataRowVersion C# (CSharp) Method

        public void GetParentRow_ByNameDataRowVersion()
        {
            DataRow drParent, drChild;
            DataRow drArrExcepted, drArrResult;
            DataTable dtChild, dtParent;
            var ds = new DataSet();
            //Create tables
            dtChild = DataProvider.CreateChildDataTable();
            dtParent = DataProvider.CreateParentDataTable();
            //Add tables to dataset
            ds.Tables.Add(dtChild);
            ds.Tables.Add(dtParent);
            //Add Relation
            DataRelation dRel = new DataRelation("Parent-Child", dtParent.Columns["ParentId"], dtChild.Columns["ParentId"]);
            ds.Relations.Add(dRel);

            drParent = dtParent.Rows[0];
            drChild = dtChild.Select("ParentId=" + drParent["ParentId"])[0];

            // GetParentRow_SD 1
            //Get Excepted result
            drArrExcepted = drParent;
            //Get Result DataRowVersion.Current
            drArrResult = drChild.GetParentRow("Parent-Child", DataRowVersion.Current);
            Assert.Equal(drArrExcepted.ItemArray, drArrResult.ItemArray);

            // GetParentRow_SD 2
            //Get Excepted result
            drArrExcepted = drParent;
            //Get Result DataRowVersion.Current
            drArrResult = drChild.GetParentRow("Parent-Child", DataRowVersion.Original);
            Assert.Equal(drArrExcepted.ItemArray, drArrResult.ItemArray);

            // GetParentRow_SD 3
            //Get Excepted result, in this case Current = Default
            drArrExcepted = drParent;
            //Get Result DataRowVersion.Current
            drArrResult = drChild.GetParentRow("Parent-Child", DataRowVersion.Default);
            Assert.Equal(drArrExcepted.ItemArray, drArrResult.ItemArray);

            // GetParentRow_SD 4
            drChild.BeginEdit();
            drChild["String1"] = "Value";
            //Get Excepted result
            drArrExcepted = drParent;
            //Get Result DataRowVersion.Current
            drArrResult = drChild.GetParentRow("Parent-Child", DataRowVersion.Proposed);
            Assert.Equal(drArrExcepted.ItemArray, drArrResult.ItemArray);
        }