Refactor appointment parts mapping in month view tests for clarity and accuracy

Author: aleksei-semikozov

packages/devextreme/testing/tests/DevExpress.ui.widgets.scheduler/appointment.monthView.tests.js

@@ -494,11 +494,12 @@ module('Integration: Appointments in Month view', {
                 });
 
                 const appointments = scheduler.instance._getAppointmentsToRepaint();
-                const parts = appointments.map((item) => ({
-                    level: item.level,
-                    partIndex: item.partIndex,
-                    partTotalCount: item.partTotalCount,
-                }));
+                const parts = appointments.map((item) => {
+                    const part = { level: item.level };
+                    if(item.partIndex !== undefined) part.partIndex = item.partIndex;
+                    if(item.partTotalCount !== undefined) part.partTotalCount = item.partTotalCount;
+                    return part;
+                });
                 assert.deepEqual(parts, [
                     {
                         level: 0,

packages/devextreme/testing/tests/DevExpress.ui.widgets.scheduler/virtual_scrolling.monthView.tests.js

@@ -329,21 +329,29 @@ module('Virtual scrolling Month View', () => {
                     {
                         offset: { x: 1400 },
                         expectedRects: [{
-                            left: -10274,
+                            left: -9574,
                             top: -9859,
                             width: 450
                         }, {
                             left: -10349,
                             top: -9759,
                             width: 525
+                        }, {
+                            left: -9649,
+                            top: -9759,
+                            width: 525
+                        }, {
+                            left: -10324,
+                            top: -9659,
+                            width: 150
                         }, {
                             left: -10349,
                             top: -9659,
                             width: 525
                         }, {
-                            left: -10349,
+                            left: -10324,
                             top: -9559,
-                            width: 450
+                            width: 75
                         }]
                     }
                 ].forEach(({ offset, expectedRects }) => {