test: add unit tests for poultry repository and searchable dropdown functionalities

- Introduced tests for `PoultryScienceRepositoryImp` to validate delegated remote calls.
- Added comprehensive tests for `SearchableDropdownLogic` covering selection, overlay, and search logic.
- Enhanced `SearchableDropdown` widget tests for multi-select, label building, and overlay management.

packages/core/lib/presentation/widget/monthly_calender.dart

@@ -58,7 +58,8 @@ class _MonthlyDataCalendarState extends State<MonthlyDataCalendar> {
   @override
   void didUpdateWidget(MonthlyDataCalendar oldWidget) {
     super.didUpdateWidget(oldWidget);
-    if (oldWidget.selectedDate != widget.selectedDate || oldWidget.dayData != widget.dayData) {
+    if (oldWidget.selectedDate != widget.selectedDate ||
+        oldWidget.dayData != widget.dayData) {
       _generateCalendar();
       _updateDisplayValue();
     }
@@ -79,25 +80,31 @@ class _MonthlyDataCalendarState extends State<MonthlyDataCalendar> {
     final twoDaysAgoStr = twoDaysAgo.formatCompactDate();
     final oneDayAgoStr = oneDayAgo.formatCompactDate();
 
-    return dateStr == todayStr || dateStr == twoDaysAgoStr || dateStr == oneDayAgoStr;
+    return dateStr == todayStr ||
+        dateStr == twoDaysAgoStr ||
+        dateStr == oneDayAgoStr;
   }
 
   void _generateCalendar() {
+    final days = _computeCalendarDays();
+    setState(() {
+      _calendarDays = days;
+    });
+  }
+
+  List<DayInfo?> _computeCalendarDays() {
     final days = <DayInfo?>[];
     final year = _currentMonth.year;
     final month = _currentMonth.month;
     final daysInMonth = _currentMonth.monthLength;
 
-    // Get first day of month to determine starting position
     final firstDayOfMonth = Jalali(year, month, 1);
-    final dayOfWeek = firstDayOfMonth.weekDay; // 1 = Saturday in shamsi_date
+    final dayOfWeek = firstDayOfMonth.weekDay;
 
-    // Add empty cells for days before the first day of month
     for (int i = 1; i < dayOfWeek; i++) {
       days.add(null);
     }
 
-    // Add all days of the month
     for (int day = 1; day <= daysInMonth; day++) {
       final date = Jalali(year, month, day);
       final today = Jalali.now();
@@ -111,21 +118,23 @@ class _MonthlyDataCalendarState extends State<MonthlyDataCalendar> {
           date: date,
           day: day,
           formattedDate: formattedDate,
-          isToday: date.year == today.year && date.month == today.month && date.day == today.day,
+          isToday:
+              date.year == today.year &&
+              date.month == today.month &&
+              date.day == today.day,
           isEnabled: isEnabled,
           hasZeroValue: hasZeroValue,
           remainingStock: data?.value ?? 0,
         ),
       );
     }
-
-    setState(() {
-      _calendarDays = days;
-    });
+    return days;
   }
 
   void _handleDayClick(DayInfo dayInfo) {
-    if (dayInfo.isEnabled && !dayInfo.hasZeroValue && widget.onDateSelect != null) {
+    if (dayInfo.isEnabled &&
+        !dayInfo.hasZeroValue &&
+        widget.onDateSelect != null) {
       widget.onDateSelect!(dayInfo);
       Navigator.pop(context);
     }
@@ -176,7 +185,8 @@ class _MonthlyDataCalendarState extends State<MonthlyDataCalendar> {
 
     if (dayInfo != null) {
       final persianDay = _toPersianNumber(dayInfo.day);
-      _textController.text = '$persianDay ${_monthNames[dayInfo.date.month - 1]}';
+      _textController.text =
+          '$persianDay ${_monthNames[dayInfo.date.month - 1]}';
     } else {
       _textController.text = widget.selectedDate ?? '';
     }
@@ -198,23 +208,31 @@ class _MonthlyDataCalendarState extends State<MonthlyDataCalendar> {
       context: context,
       builder: (BuildContext context) {
         return Dialog(
-          shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(24)),
+          shape: RoundedRectangleBorder(
+            borderRadius: BorderRadius.circular(24),
+          ),
           child: Container(
             constraints: const BoxConstraints(maxWidth: 650, maxHeight: 650),
             child: Card(
               elevation: 3,
-              shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(24)),
+              shape: RoundedRectangleBorder(
+                borderRadius: BorderRadius.circular(24),
+              ),
               child: Padding(
                 padding: const EdgeInsets.all(16.0),
-                child: Column(
-                  mainAxisSize: MainAxisSize.min,
-                  children: [
-                    _buildHeader(),
-                    const SizedBox(height: 16),
-                    _buildDayNamesHeader(),
-                    const SizedBox(height: 8),
-                    _buildCalendarGrid(),
-                  ],
+                child: StatefulBuilder(
+                  builder: (context, setStateDialog) {
+                    return Column(
+                      mainAxisSize: MainAxisSize.min,
+                      children: [
+                        _buildHeaderWithDialogSet(setStateDialog),
+                        const SizedBox(height: 16),
+                        _buildDayNamesHeader(),
+                        const SizedBox(height: 8),
+                        _buildCalendarGrid(),
+                      ],
+                    );
+                  },
                 ),
               ),
             ),
@@ -224,6 +242,64 @@ class _MonthlyDataCalendarState extends State<MonthlyDataCalendar> {
     );
   }
 
+  Widget _buildHeaderWithDialogSet(
+    void Function(void Function()) setStateDialog,
+  ) {
+    return Container(
+      padding: const EdgeInsets.only(bottom: 16),
+      decoration: const BoxDecoration(
+        border: Border(bottom: BorderSide(color: Color(0xFFF0F0F0), width: 2)),
+      ),
+      child: Row(
+        mainAxisAlignment: MainAxisAlignment.spaceBetween,
+        children: [
+          IconButton(
+            onPressed: () {
+              setStateDialog(() {
+                if (_currentMonth.month == 1) {
+                  _currentMonth = Jalali(_currentMonth.year - 1, 12, 1);
+                } else {
+                  _currentMonth = Jalali(
+                    _currentMonth.year,
+                    _currentMonth.month - 1,
+                    1,
+                  );
+                }
+                _calendarDays = _computeCalendarDays();
+              });
+            },
+            icon: const Icon(Icons.chevron_left),
+          ),
+          Text(
+            '${_monthNames[_currentMonth.month - 1]} ${_toPersianNumber(_currentMonth.year)}',
+            style: const TextStyle(
+              fontWeight: FontWeight.bold,
+              fontSize: 20,
+              color: Color(0xFF333333),
+            ),
+          ),
+          IconButton(
+            onPressed: () {
+              setStateDialog(() {
+                if (_currentMonth.month == 12) {
+                  _currentMonth = Jalali(_currentMonth.year + 1, 1, 1);
+                } else {
+                  _currentMonth = Jalali(
+                    _currentMonth.year,
+                    _currentMonth.month + 1,
+                    1,
+                  );
+                }
+                _calendarDays = _computeCalendarDays();
+              });
+            },
+            icon: const Icon(Icons.chevron_right),
+          ),
+        ],
+      ),
+    );
+  }
+
   Widget _buildHeader() {
     return Container(
       padding: const EdgeInsets.only(bottom: 16),
@@ -233,7 +309,10 @@ class _MonthlyDataCalendarState extends State<MonthlyDataCalendar> {
       child: Row(
         mainAxisAlignment: MainAxisAlignment.spaceBetween,
         children: [
-          IconButton(onPressed: _handlePrevMonth, icon: const Icon(Icons.chevron_right)),
+          IconButton(
+            onPressed: _handlePrevMonth,
+            icon: const Icon(Icons.chevron_left),
+          ),
           Text(
             '${_monthNames[_currentMonth.month - 1]} ${_toPersianNumber(_currentMonth.year)}',
             style: const TextStyle(
@@ -242,7 +321,10 @@ class _MonthlyDataCalendarState extends State<MonthlyDataCalendar> {
               color: Color(0xFF333333),
             ),
           ),
-          IconButton(onPressed: _handleNextMonth, icon: const Icon(Icons.chevron_left)),
+          IconButton(
+            onPressed: _handleNextMonth,
+            icon: const Icon(Icons.chevron_right),
+          ),
         ],
       ),
     );
@@ -333,7 +415,9 @@ class _MonthlyDataCalendarState extends State<MonthlyDataCalendar> {
                 style: TextStyle(
                   fontWeight: FontWeight.bold,
                   fontSize: 14,
-                  color: dayInfo.isToday ? const Color(0xFFFF9800) : const Color(0xFF333333),
+                  color: dayInfo.isToday
+                      ? const Color(0xFFFF9800)
+                      : const Color(0xFF333333),
                 ),
               ),
               if (data != null && data.value != null) ...[

packages/core/lib/presentation/widget/overlay_dropdown_widget/multi_select_dropdown/multi_select_dropdown_logic.dart

@@ -96,7 +96,7 @@ class SearchableDropdownLogic<T> extends GetxController {
     if (selectedItem != null) {
       this.selectedItem.value = selectedItem;
     } else {
-      this.selectedItem.value = initialValue != null ? [?initialValue] : [];
+      this.selectedItem.value = initialValue != null ? [initialValue as T] : [];
     }
   }