test: fix tests

Author: sjbur

packages/devextreme/js/__internal/scheduler/appointment_popup/appointment_popup.test.ts

@@ -463,7 +463,7 @@ describe('Appointment Popup Form', () => {
 
       POM.popup.getBackButton().click();
 
-      expect(POM.popup.component.option('height')).toBeUndefined();
+      expect(POM.popup.component.option('height')).toBe('auto');
       expect(mainGroup.hasClass(CLASSES.mainGroupHidden)).toBe(false);
       expect(recurrenceGroup.hasClass(CLASSES.recurrenceGroupHidden)).toBe(true);
     });

packages/devextreme/js/__internal/scheduler/appointment_popup/m_form.ts

@@ -142,8 +142,6 @@ export class AppointmentForm {
 
   private _$recurrenceGroup?: dxElementWrapper;
 
-  private _initialPopupHeight?: string | number;
-
   get dxForm(): dxForm {
     return this._dxForm as dxForm;
   }
@@ -205,7 +203,6 @@ export class AppointmentForm {
 
   create(popup: any): void {
     this._popup = popup;
-    this._initialPopupHeight = this.dxPopup.option('height') as string | number;
 
     const mainGroup = this.createMainFormGroup();
 
@@ -808,8 +805,12 @@ export class AppointmentForm {
   }
 
   showRecurrenceGroup(): void {
-    const overlayHeight = this.dxPopup.$overlayContent().get(0).clientHeight;
-    this.dxPopup.option('height', overlayHeight);
+    const currentHeight = this.dxPopup.option('height') as string | number | undefined;
+
+    if (currentHeight === 'auto' || currentHeight === undefined) {
+      const overlayHeight = this.dxPopup.$overlayContent().get(0).clientHeight;
+      this.dxPopup.option('height', overlayHeight);
+    }
 
     this._$mainGroup?.addClass(CLASSES.mainHidden);
     this._$recurrenceGroup?.removeClass(CLASSES.recurrenceHidden);
@@ -826,7 +827,13 @@ export class AppointmentForm {
   }
 
   showMainGroup(saveRecurrenceValue = true): void {
-    this.dxPopup.option('height', this._initialPopupHeight);
+    const currentHeight = this.dxPopup.option('height') as string | number | undefined;
+    const editingConfig = this.scheduler.getEditingConfig();
+    const configuredHeight = editingConfig?.popup?.height ?? 'auto';
+
+    if (typeof currentHeight === 'number') {
+      this.dxPopup.option('height', configuredHeight);
+    }
 
     this._$mainGroup?.removeClass(CLASSES.mainHidden);
     this._$recurrenceGroup?.addClass(CLASSES.recurrenceHidden);