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

        public void GetChildRows_ByDataRealtionDataRowVersion()
        {
            DataRow drParent;
            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];

            // Teting: DateTime.Now.ToShortTimeString()
            //Get Excepted result
            drArrExcepted = dtChild.Select("ParentId=" + drParent["ParentId"], "", DataViewRowState.CurrentRows);
            //Get Result DataRowVersion.Current
            drArrResult = drParent.GetChildRows(dRel, DataRowVersion.Current);
            Assert.Equal(drArrExcepted, drArrResult);

            // Teting: DataRow.GetParentRows_D_D
            //Get Excepted result
            drArrExcepted = dtChild.Select("ParentId=" + drParent["ParentId"], "", DataViewRowState.OriginalRows);
            //Get Result DataRowVersion.Current
            drArrResult = drParent.GetChildRows(dRel, DataRowVersion.Original);
            Assert.Equal(drArrExcepted, drArrResult);

            // Teting: DataRow.GetParentRows_D_D
            //Get Excepted result, in this case Current = Default
            drArrExcepted = dtChild.Select("ParentId=" + drParent["ParentId"], "", DataViewRowState.CurrentRows);
            //Get Result DataRowVersion.Current
            drArrResult = drParent.GetChildRows(dRel, DataRowVersion.Default);
            Assert.Equal(drArrExcepted, drArrResult);

            // Teting: DataRow.GetParentRows_D_D
            drParent.BeginEdit();
            drParent["String1"] = "Value";
            //Get Excepted result
            drArrExcepted = dtChild.Select("ParentId=" + drParent["ParentId"], "", DataViewRowState.CurrentRows);
            //Get Result DataRowVersion.Current
            drArrResult = drParent.GetChildRows(dRel, DataRowVersion.Proposed);
            Assert.Equal(drArrExcepted, drArrResult);
        }