TreeList: Add node property for a detail adaptive row

js/ui/grid_core/ui.grid_core.adaptivity.js

@@ -1026,6 +1026,7 @@ module.exports = {
                             rowType: ADAPTIVE_ROW_TYPE,
                             key: item.key,
                             data: item.data,
+                            node: item.node,
                             modifiedValues: item.modifiedValues,
                             isNewRow: item.isNewRow,
                             values: item.values

testing/tests/DevExpress.ui.widgets.treeList/adaptiveColumns.tests.js

@@ -0,0 +1,81 @@
+QUnit.testStart(function() {
+    const markup =
+        '<div class="dx-treelist dx-widget">\
+            <div id="container"></div>\
+        </div>';
+    $('#qunit-fixture').html(markup);
+});
+
+import 'common.css!';
+import 'generic_light.css!';
+import 'ui/tree_list/ui.tree_list';
+
+import $ from 'jquery';
+import treeListMocks from '../../helpers/treeListMocks.js';
+import renderer from 'core/renderer';
+
+function setupTreeList(that, $treeListContainer) {
+    that.$element = function() {
+        return $treeListContainer ? $treeListContainer : renderer('.dx-treelist');
+    };
+
+    if(that.columns !== null) {
+        that.columns = that.columns || [
+            { dataField: 'firstName', index: 0, allowEditing: true, allowExporting: true },
+            { dataField: 'lastName', index: 1, allowEditing: true, allowExporting: true }
+        ];
+    }
+
+    that.items = that.items || [
+        { id: 1, parentId: 0, firstName: 'TestTestTestTestTestTestTestTest1', lastName: 'Psy' },
+        { id: 2, parentId: 1, firstName: 'Super', lastName: 'Star' }
+    ];
+
+    that.options = $.extend({}, {
+        keyExpr: 'id',
+        parentIdExpr: 'parentId',
+        rootValue: 0,
+        columns: that.columns,
+        dataSource: {
+            asyncLoadEnabled: false,
+            store: that.items
+        },
+        expandedRowKeys: [],
+        columnHidingEnabled: true
+    }, that.options);
+
+    that.setupOptions = {
+        initViews: true
+    };
+
+    treeListMocks.setupTreeListModules(that, ['data', 'columns', 'rows', 'columnHeaders', 'masterDetail', 'editing', 'adaptivity', 'columnsResizingReordering', 'keyboardNavigation', 'gridView'], that.setupOptions);
+}
+
+QUnit.module('API', {
+    beforeEach: function() {
+        this.clock = sinon.useFakeTimers();
+    },
+    afterEach: function() {
+        this.clock.restore();
+    }
+});
+
+QUnit.test('The detail adaptive row should have the node property', function(assert) {
+    // arrange
+    $('.dx-treelist').width(200);
+
+    setupTreeList(this);
+    this.rowsView.render($('#container'));
+    this.resizingController.updateDimensions();
+    this.clock.tick();
+
+    // act
+    this.adaptiveColumnsController.expandAdaptiveDetailRow(1);
+    this.clock.tick();
+
+    // assert
+    const rows = this.getVisibleRows();
+    assert.ok($('.dx-adaptive-detail-row').length, 'render field items');
+    assert.strictEqual(rows[1].rowType, 'detailAdaptive', 'detail adaptive row');
+    assert.deepEqual(rows[1].node, rows[0].node, 'detail adaptive row has the node property');
+});