diff --git a/lib/data/database/task_dao.dart b/lib/data/database/task_dao.dart
index 79d915d..96c5c4f 100644
--- a/lib/data/database/task_dao.dart
+++ b/lib/data/database/task_dao.dart
@@ -123,4 +123,11 @@ class TaskDAO {
       return false;
     }
   }
+
+  Future<bool> updateTasks(List<Task> tasks, bool isCompletedNewValue) async {
+    for (var task in tasks) {
+      update(task, isCompletedNewValue);
+    }
+    return true;
+  }
 }
diff --git a/lib/data/model/tasks_complete_status.dart b/lib/data/model/tasks_complete_status.dart
new file mode 100644
index 0000000..351a935
--- /dev/null
+++ b/lib/data/model/tasks_complete_status.dart
@@ -0,0 +1,4 @@
+enum TasksCompleteStatus {
+  checkAll,
+  uncheckAll
+}
\ No newline at end of file
diff --git a/lib/data/todo_repository.dart b/lib/data/todo_repository.dart
index 260d6ef..d9b65bc 100644
--- a/lib/data/todo_repository.dart
+++ b/lib/data/todo_repository.dart
@@ -9,6 +9,8 @@ abstract class TodoRepository {
 
   Future<bool> updateTask(Task task, bool isCompletedNewValue);
 
+  Future<bool> updateTasks(List<Task> tasks, bool isCompletedNewValue);
+
   Future<bool> addTask(Task task, int? checklistId);
 
   Future<bool> deleteTasks(List<Task> tasks);
@@ -90,4 +92,9 @@ class TodoRepositoryImpl implements TodoRepository {
       taskTitle: taskTitle,
     );
   }
+
+  @override
+  Future<bool> updateTasks(List<Task> tasks, bool isCompletedNewValue) async {
+    return await _todoDAO.updateTasks(tasks, isCompletedNewValue);
+  }
 }
diff --git a/lib/domain/format_task_list_message_use_case.dart b/lib/domain/format_task_list_message_use_case.dart
deleted file mode 100644
index 2d331b3..0000000
--- a/lib/domain/format_task_list_message_use_case.dart
+++ /dev/null
@@ -1,21 +0,0 @@
-import 'package:injectable/injectable.dart';
-import 'package:todoapp/data/model/task.dart';
-
-abstract class FormatTaskListMessageUseCase {
-  String formatTaskList({required List<Task> tasks});
-}
-
-@Injectable(as: FormatTaskListMessageUseCase)
-class FormatTaskListMessageUseCaseImpl extends FormatTaskListMessageUseCase {
-  @override
-  String formatTaskList({required List<Task> tasks}) {
-    var checklist = '';
-
-    for (var task in tasks) {
-      if (task.isCompleted == false) {
-        checklist += '- ${task.title}\n';
-      }
-    }
-    return checklist;
-  }
-}
diff --git a/lib/domain/progress_counter_use_case.dart b/lib/domain/progress_counter_use_case.dart
deleted file mode 100644
index 992786f..0000000
--- a/lib/domain/progress_counter_use_case.dart
+++ /dev/null
@@ -1,25 +0,0 @@
-import 'package:injectable/injectable.dart';
-import 'package:todoapp/data/model/task.dart';
-
-abstract class ProgressCounterUseCase {
-  double calculateProgress({required List<Task> tasks});
-}
-
-@Injectable(as: ProgressCounterUseCase)
-class ProgressCounterUseCaseImpl extends ProgressCounterUseCase {
-  @override
-  double calculateProgress({required List<Task> tasks}) {
-    int completedTasks = 0;
-    for (var task in tasks) {
-      if (task.isCompleted) {
-        completedTasks++;
-      }
-    }
-
-    if (tasks.isNotEmpty) {
-      return completedTasks / tasks.length.toDouble();
-    } else {
-      return 0.0;
-    }
-  }
-}
diff --git a/lib/domain/should_show_share_button_use_case.dart b/lib/domain/should_show_share_button_use_case.dart
deleted file mode 100644
index 2a37862..0000000
--- a/lib/domain/should_show_share_button_use_case.dart
+++ /dev/null
@@ -1,15 +0,0 @@
-import 'package:injectable/injectable.dart';
-import 'package:todoapp/data/model/task.dart';
-
-abstract class ShouldShowShareButtonUseCase {
-
-  bool shouldShowShareButton(List<Task> tasks);
-}
-
-@Injectable(as: ShouldShowShareButtonUseCase)
-class ShouldShowShareButtonUseCaseImpl extends ShouldShowShareButtonUseCase {
-  @override
-  bool shouldShowShareButton(List<Task> tasks) {
-    return tasks.any((task) => task.isCompleted == false);
-  }
-}
diff --git a/lib/domain/tasks_comparator_use_case.dart b/lib/domain/task_list_sort_helper.dart
similarity index 52%
rename from lib/domain/tasks_comparator_use_case.dart
rename to lib/domain/task_list_sort_helper.dart
index acc718a..d087a1b 100644
--- a/lib/domain/tasks_comparator_use_case.dart
+++ b/lib/domain/task_list_sort_helper.dart
@@ -1,12 +1,13 @@
 import 'package:injectable/injectable.dart';
 import 'package:todoapp/data/model/task.dart';
 
-abstract class TasksComparatorUseCase {
+abstract class TaskListSortHelper {
   bool areThemEqual({required List<Task> oldList, required List<Task> newList});
+  List<Task> sortByCompletedStatus(List<Task> tasks);
 }
 
-@Injectable(as: TasksComparatorUseCase)
-class TasksComparatorUseCaseImpl extends TasksComparatorUseCase {
+@Injectable(as: TaskListSortHelper)
+class TaskListSortHelperImpl extends TaskListSortHelper {
   @override
   bool areThemEqual({
     required List<Task> oldList,
@@ -29,4 +30,21 @@ class TasksComparatorUseCaseImpl extends TasksComparatorUseCase {
     }
     return true;
   }
+
+  @override
+  List<Task> sortByCompletedStatus(List<Task> tasks) {
+    List<Task> tasksToBeSorted = List.from(tasks);
+    tasksToBeSorted.sort((a, b) => _sort(a, b));
+    return tasksToBeSorted;
+  }
+
+  int _sort(Task a, Task b) {
+    if (a.isCompleted == false && b.isCompleted) {
+      return -1;
+    } else if (a.isCompleted && b.isCompleted == false) {
+      return 1;
+    } else {
+      return 0;
+    }
+  }
 }
diff --git a/lib/domain/task_list_summary_helper.dart b/lib/domain/task_list_summary_helper.dart
new file mode 100644
index 0000000..cc766d2
--- /dev/null
+++ b/lib/domain/task_list_summary_helper.dart
@@ -0,0 +1,62 @@
+import 'package:injectable/injectable.dart';
+import 'package:todoapp/data/model/task.dart';
+import 'package:todoapp/data/model/tasks_complete_status.dart';
+
+abstract class TaskListSummaryHelper {
+  bool shouldShowShareButton({required List<Task> tasks});
+  double calculateProgress({required List<Task> tasks});
+  String formatTaskList({required List<Task> tasks});
+  TasksCompleteStatus? checkStatus({required List<Task> tasks});
+}
+
+@Injectable(as: TaskListSummaryHelper)
+class TaskListSummaryHelperImpl extends TaskListSummaryHelper {
+  @override
+  double calculateProgress({required List<Task> tasks}) {
+    int completedTasks = 0;
+    for (var task in tasks) {
+      if (task.isCompleted) {
+        completedTasks++;
+      }
+    }
+
+    if (tasks.isNotEmpty) {
+      return completedTasks / tasks.length.toDouble();
+    } else {
+      return 0.0;
+    }
+  }
+
+  @override
+  String formatTaskList({required List<Task> tasks}) {
+    var checklist = '';
+
+    for (var task in tasks) {
+      if (task.isCompleted == false) {
+        checklist += '- ${task.title}\n';
+      }
+    }
+    return checklist;
+  }
+
+  @override
+  bool shouldShowShareButton({required List<Task> tasks}) {
+    return tasks.any((task) => task.isCompleted == false);
+  }
+
+  @override
+  TasksCompleteStatus? checkStatus({required List<Task> tasks}) {
+    if (tasks.isEmpty) {
+      return null;
+    } else {
+      final areAllCompleted =
+          tasks.where((task) => task.isCompleted).length == tasks.length;
+
+      if (areAllCompleted) {
+        return TasksCompleteStatus.uncheckAll;
+      } else {
+        return TasksCompleteStatus.checkAll;
+      }
+    }
+  }
+}
diff --git a/lib/domain/tasks_sorter_use_case.dart b/lib/domain/tasks_sorter_use_case.dart
deleted file mode 100644
index a3c111c..0000000
--- a/lib/domain/tasks_sorter_use_case.dart
+++ /dev/null
@@ -1,26 +0,0 @@
-import 'package:injectable/injectable.dart';
-import 'package:todoapp/data/model/task.dart';
-
-abstract class TasksSorterUseCase {
-  List<Task> sortByCompletedStatus(List<Task> tasks);
-}
-
-@Injectable(as: TasksSorterUseCase)
-class TasksSorterUseCaseImpl implements TasksSorterUseCase {
-  @override
-  List<Task> sortByCompletedStatus(List<Task> tasks) {
-    List<Task> tasksToBeSorted = List.from(tasks);
-    tasksToBeSorted.sort((a, b) => _sort(a, b));
-    return tasksToBeSorted;
-  }
-
-  int _sort(Task a, Task b) {
-    if (a.isCompleted == false && b.isCompleted) {
-      return -1;
-    } else if (a.isCompleted && b.isCompleted == false) {
-      return 1;
-    } else {
-      return 0;
-    }
-  }
-}
\ No newline at end of file
diff --git a/lib/ui/components/widgets/check_all_action_chip_widget.dart b/lib/ui/components/widgets/check_all_action_chip_widget.dart
new file mode 100644
index 0000000..58b2cf9
--- /dev/null
+++ b/lib/ui/components/widgets/check_all_action_chip_widget.dart
@@ -0,0 +1,33 @@
+import 'package:flutter/material.dart';
+import 'package:todoapp/data/model/tasks_complete_status.dart';
+import 'package:todoapp/ui/l10n/app_localizations.dart';
+
+class CheckAllActionChipWidget extends StatelessWidget {
+  final TasksCompleteStatus status;
+  final VoidCallback onClick;
+
+  const CheckAllActionChipWidget({
+    super.key,
+    required this.status,
+    required this.onClick,
+  });
+
+  @override
+  Widget build(BuildContext context) {
+    final localizations = AppLocalizations.of(context)!;
+
+    String text;
+    switch (status) {
+      case TasksCompleteStatus.checkAll:
+        text = localizations.check_all;
+      case TasksCompleteStatus.uncheckAll:
+        text = localizations.uncheck_all;
+    }
+    return ActionChip(
+      label: Text(text),
+      onPressed: () {
+        onClick();
+      },
+    );
+  }
+}
diff --git a/lib/ui/components/widgets/checklist/checklist_full_widget.dart b/lib/ui/components/widgets/checklist/checklist_full_widget.dart
index cace041..d36b2c0 100644
--- a/lib/ui/components/widgets/checklist/checklist_full_widget.dart
+++ b/lib/ui/components/widgets/checklist/checklist_full_widget.dart
@@ -38,12 +38,9 @@ class ChecklistsListFullWidgetState extends State<ChecklistsListFullWidget> {
     final getIt = GetItStartupHandlerWrapper.getIt;
     _tasksViewModel = TasksViewModel(
       repository: getIt.get(),
+      taskListSummaryHelper: getIt.get(),
       shareMessageHandler: getIt.get(),
-      shouldShowShareButtonUseCase: getIt.get(),
-      formatTaskListMessageUseCase: getIt.get(),
-      tasksSorterUseCase: getIt.get(),
-      tasksComparatorUseCase: getIt.get(),
-      progressCounterUseCase: getIt.get(),
+      taskListSortHelper: getIt.get(),
     );
   }
 
@@ -103,23 +100,22 @@ class ChecklistsListFullWidgetState extends State<ChecklistsListFullWidget> {
             itemCount: widget.checklists.length,
           ),
         ),
-        Expanded(
-            flex: 6,
-            child: TasksListWidget(
-              tasks: tasks == null ? [] : tasks!,
-              emptyTasksMessage: localizations.empty_tasks,
-              onCompleteTask: _tasksViewModel.onCompleteTask,
-              onRemoveTask: (task) => _showConfirmationDialogToRemoveTask(
-                context,
-                task,
-              ),
-              onReorder: _tasksViewModel.reorder,
-              onTap: (task) => _navigateToTaskScreen(
-                context,
-                checklistId: selected?.id,
-                task: task,
-              ),
-            )),
+        TasksListWidget(
+          flex: 6,
+          tasks: tasks == null ? [] : tasks!,
+          emptyTasksMessage: localizations.empty_tasks,
+          onCompleteTask: _tasksViewModel.onCompleteTask,
+          onRemoveTask: (task) => _showConfirmationDialogToRemoveTask(
+            context,
+            task,
+          ),
+          onReorder: _tasksViewModel.reorder,
+          onTap: (task) => _navigateToTaskScreen(
+            context,
+            checklistId: selected?.id,
+            task: task,
+          ),
+        ),
       ],
     );
   }
diff --git a/lib/ui/components/widgets/task/taskslist/tasks_list_widget.dart b/lib/ui/components/widgets/task/taskslist/tasks_list_widget.dart
index e40bf0a..9701d65 100644
--- a/lib/ui/components/widgets/task/taskslist/tasks_list_widget.dart
+++ b/lib/ui/components/widgets/task/taskslist/tasks_list_widget.dart
@@ -4,6 +4,7 @@ import 'package:todoapp/ui/components/widgets/task/task_cell_widget.dart';
 
 class TasksListWidget extends StatelessWidget {
   final List<Task> tasks;
+  final int? flex;
   final String emptyTasksMessage;
   final Function(Task) onRemoveTask;
   final Function(Task p1, bool p2) onCompleteTask;
@@ -13,6 +14,7 @@ class TasksListWidget extends StatelessWidget {
   const TasksListWidget({
     super.key,
     required this.tasks,
+    this.flex,
     required this.emptyTasksMessage,
     required this.onRemoveTask,
     required this.onCompleteTask,
@@ -26,8 +28,9 @@ class TasksListWidget extends StatelessWidget {
   }
 
   Widget _buildTaskList(BuildContext context) {
+    Widget child;
     if (tasks.isEmpty) {
-      return Center(
+      child = Center(
         child: Text(
           emptyTasksMessage,
           textAlign: TextAlign.center,
@@ -35,7 +38,7 @@ class TasksListWidget extends StatelessWidget {
         ),
       );
     } else {
-      return ReorderableListView.builder(
+      child = ReorderableListView.builder(
         onReorder: onReorder,
         padding: const EdgeInsets.only(
           top: 12,
@@ -47,6 +50,11 @@ class TasksListWidget extends StatelessWidget {
         itemCount: tasks.length,
       );
     }
+
+    return Expanded(
+      flex: flex ?? 1,
+      child: child,
+    );
   }
 
   TaskCellWidget _buildTaskCellWidget(Task task) {
diff --git a/lib/ui/components/widgets/task/taskslist/tasks_screen_state.dart b/lib/ui/components/widgets/task/taskslist/tasks_screen_state.dart
index 407277d..56efd48 100644
--- a/lib/ui/components/widgets/task/taskslist/tasks_screen_state.dart
+++ b/lib/ui/components/widgets/task/taskslist/tasks_screen_state.dart
@@ -1,5 +1,6 @@
 import 'package:freezed_annotation/freezed_annotation.dart';
 import 'package:todoapp/data/model/task.dart';
+import 'package:todoapp/data/model/tasks_complete_status.dart';
 
 part 'tasks_screen_state.freezed.dart';
 
@@ -14,10 +15,14 @@ class TasksScreenState with _$TasksScreenState {
   @override
   final bool showShareIcon;
 
+  @override
+  final TasksCompleteStatus? tasksCompleteStatus;
+
   const TasksScreenState({
     required this.tasks,
     required this.isLoading,
     required this.progress,
     required this.showShareIcon,
+    this.tasksCompleteStatus,
   });
 }
diff --git a/lib/ui/components/widgets/task/taskslist/tasks_viewmodel.dart b/lib/ui/components/widgets/task/taskslist/tasks_viewmodel.dart
index 057716b..d99d5b1 100644
--- a/lib/ui/components/widgets/task/taskslist/tasks_viewmodel.dart
+++ b/lib/ui/components/widgets/task/taskslist/tasks_viewmodel.dart
@@ -1,33 +1,24 @@
 import 'package:flutter/widgets.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:todoapp/data/model/task.dart';
+import 'package:todoapp/data/model/tasks_complete_status.dart';
 import 'package:todoapp/data/todo_repository.dart';
-import 'package:todoapp/domain/format_task_list_message_use_case.dart';
-import 'package:todoapp/domain/progress_counter_use_case.dart';
-import 'package:todoapp/domain/should_show_share_button_use_case.dart';
-import 'package:todoapp/domain/tasks_comparator_use_case.dart';
-import 'package:todoapp/domain/tasks_sorter_use_case.dart';
+import 'package:todoapp/domain/task_list_sort_helper.dart';
+import 'package:todoapp/domain/task_list_summary_helper.dart';
 import 'package:todoapp/ui/components/widgets/task/taskslist/tasks_screen_state.dart';
 import 'package:todoapp/util/share_message_handler.dart';
 
 class TasksViewModel extends Cubit<TasksScreenState> {
   late TodoRepository _repository;
   late ShareMessageHandler _shareMessageHandler;
-
-  ShouldShowShareButtonUseCase shouldShowShareButtonUseCase;
-  TasksSorterUseCase tasksSorterUseCase;
-  TasksComparatorUseCase tasksComparatorUseCase;
-  ProgressCounterUseCase progressCounterUseCase;
-  FormatTaskListMessageUseCase formatTaskListMessageUseCase;
+  late TaskListSummaryHelper _taskListSummaryHelper;
+  late TaskListSortHelper _taskListSortHelper;
 
   TasksViewModel({
     required TodoRepository repository,
     required ShareMessageHandler shareMessageHandler,
-    required this.shouldShowShareButtonUseCase,
-    required this.tasksSorterUseCase,
-    required this.tasksComparatorUseCase,
-    required this.progressCounterUseCase,
-    required this.formatTaskListMessageUseCase,
+    required TaskListSummaryHelper taskListSummaryHelper,
+    required TaskListSortHelper taskListSortHelper,
   }) : super(
           const TasksScreenState(
             tasks: [],
@@ -38,6 +29,8 @@ class TasksViewModel extends Cubit<TasksScreenState> {
         ) {
     _repository = repository;
     _shareMessageHandler = shareMessageHandler;
+    _taskListSummaryHelper = taskListSummaryHelper;
+    _taskListSortHelper = taskListSortHelper;
   }
 
   void _onLoad() {
@@ -46,24 +39,43 @@ class TasksViewModel extends Cubit<TasksScreenState> {
     );
   }
 
+  Future<void> onCompleteButtonAction(int? checklistId) async {
+    TasksCompleteStatus? status = _taskListSummaryHelper.checkStatus(
+      tasks: state.tasks,
+    );
+
+    await _repository.updateTasks(
+      state.tasks,
+      status == TasksCompleteStatus.checkAll,
+    );
+
+    await updateTasks(checklistId);
+  }
+
   Future<void> updateTasks(int? checklistId) async {
     _onLoad();
 
     var tasks = await _repository.getTasks(checklistId);
+
+    TasksCompleteStatus? status = _taskListSummaryHelper.checkStatus(
+      tasks: tasks,
+    );
+
     emit(
       state.copyWith(
         isLoading: false,
         tasks: tasks,
-        showShareIcon: shouldShowShareButtonUseCase.shouldShowShareButton(
-          tasks
+        tasksCompleteStatus: status,
+        showShareIcon: _taskListSummaryHelper.shouldShowShareButton(
+          tasks: tasks,
         ),
-        progress: progressCounterUseCase.calculateProgress(tasks: tasks),
+        progress: _taskListSummaryHelper.calculateProgress(tasks: tasks),
       ),
     );
   }
 
   Future<void> shareTasks({required String checklistName}) async {
-    final checklist = formatTaskListMessageUseCase.formatTaskList(
+    final checklist = _taskListSummaryHelper.formatTaskList(
       tasks: state.tasks,
     );
 
@@ -88,11 +100,14 @@ class TasksViewModel extends Cubit<TasksScreenState> {
         tasks[index] = tasks[index].copyWith(isCompleted: value);
         emit(
           state.copyWith(
-            progress: progressCounterUseCase.calculateProgress(tasks: tasks),
-            showShareIcon: shouldShowShareButtonUseCase.shouldShowShareButton(
-              tasks
+            progress: _taskListSummaryHelper.calculateProgress(tasks: tasks),
+            showShareIcon: _taskListSummaryHelper.shouldShowShareButton(
+              tasks: tasks,
             ),
             isLoading: false,
+            tasksCompleteStatus: _taskListSummaryHelper.checkStatus(
+              tasks: tasks,
+            ),
             tasks: tasks,
           ),
         );
@@ -110,12 +125,14 @@ class TasksViewModel extends Cubit<TasksScreenState> {
       tasks.remove(task);
       emit(
         state.copyWith(
-            progress: progressCounterUseCase.calculateProgress(tasks: tasks),
-            showShareIcon: shouldShowShareButtonUseCase.shouldShowShareButton(
-              tasks
-            ),
-            isLoading: false,
-            tasks: tasks),
+          progress: _taskListSummaryHelper.calculateProgress(tasks: tasks),
+          showShareIcon: _taskListSummaryHelper.shouldShowShareButton(
+            tasks: tasks,
+          ),
+          isLoading: false,
+          tasksCompleteStatus: _taskListSummaryHelper.checkStatus(tasks: tasks),
+          tasks: tasks,
+        ),
       );
     }
   }
@@ -135,8 +152,8 @@ class TasksViewModel extends Cubit<TasksScreenState> {
     emit(
       state.copyWith(
         isLoading: false,
-        showShareIcon: shouldShowShareButtonUseCase.shouldShowShareButton(
-          tasks
+        showShareIcon: _taskListSummaryHelper.shouldShowShareButton(
+          tasks: tasks,
         ),
         tasks: tasks,
       ),
@@ -146,11 +163,11 @@ class TasksViewModel extends Cubit<TasksScreenState> {
   }
 
   void onSort() {
-    List<Task> tasksToBeSorted = tasksSorterUseCase.sortByCompletedStatus(
+    List<Task> tasksToBeSorted = _taskListSortHelper.sortByCompletedStatus(
       state.tasks,
     );
 
-    bool wasSortedPerformed = tasksComparatorUseCase.areThemEqual(
+    bool wasSortedPerformed = _taskListSortHelper.areThemEqual(
       oldList: state.tasks,
       newList: tasksToBeSorted,
     );
diff --git a/lib/ui/l10n/app_en.arb b/lib/ui/l10n/app_en.arb
index c2149c8..848af80 100644
--- a/lib/ui/l10n/app_en.arb
+++ b/lib/ui/l10n/app_en.arb
@@ -20,5 +20,7 @@
   "remove": "Remove",
   "sort_message": "It is sorted",
   "share": "Share",
-  "sort": "Sort"
+  "sort": "Sort",
+  "check_all": "Check all",
+  "uncheck_all": "Uncheck all"
 }
\ No newline at end of file
diff --git a/lib/ui/l10n/app_pt.arb b/lib/ui/l10n/app_pt.arb
index 89250c7..0d3849f 100644
--- a/lib/ui/l10n/app_pt.arb
+++ b/lib/ui/l10n/app_pt.arb
@@ -20,5 +20,7 @@
   "remove": "Deletar",
   "sort_message": "Está ordenado",
   "share": "Compartilhar",
-  "sort": "Ordenar"
+  "sort": "Ordenar",
+  "check_all": "Complete tudo",
+  "uncheck_all": "Limpar tudo"
 }
\ No newline at end of file
diff --git a/lib/ui/screens/tasks/tasks_screen.dart b/lib/ui/screens/tasks/tasks_screen.dart
index 46e2210..c3ec05d 100644
--- a/lib/ui/screens/tasks/tasks_screen.dart
+++ b/lib/ui/screens/tasks/tasks_screen.dart
@@ -4,6 +4,7 @@ import 'package:flutter_bloc/flutter_bloc.dart';
 import 'package:todoapp/data/model/checklist.dart';
 import 'package:todoapp/data/model/task.dart';
 import 'package:todoapp/ui/components/remove_task_dialog_builder.dart';
+import 'package:todoapp/ui/components/widgets/check_all_action_chip_widget.dart';
 import 'package:todoapp/ui/components/widgets/custom_app_bar_widget.dart';
 import 'package:todoapp/ui/components/widgets/progress_widget.dart';
 import 'package:todoapp/ui/components/widgets/task/taskslist/tasks_list_widget.dart';
@@ -32,11 +33,8 @@ class TasksScreen extends StatelessWidget {
     final viewModel = TasksViewModel(
       repository: getIt.get(),
       shareMessageHandler: getIt.get(),
-      shouldShowShareButtonUseCase: getIt.get(),
-      formatTaskListMessageUseCase: getIt.get(),
-      tasksSorterUseCase: getIt.get(),
-      tasksComparatorUseCase: getIt.get(),
-      progressCounterUseCase: getIt.get(),
+      taskListSummaryHelper: getIt.get(),
+      taskListSortHelper: getIt.get(),
     );
     viewModel.updateTasks(checklist.id);
 
@@ -54,6 +52,9 @@ class TasksScreen extends StatelessWidget {
             updateTasks: viewModel.updateTasks,
             onReorder: viewModel.reorder,
             onSort: () => {viewModel.onSort()},
+            onCompleteButtonAction: () {
+              viewModel.onCompleteButtonAction(checklist.id);
+            },
             onShare: () => {
               viewModel.shareTasks(checklistName: checklist.title),
             },
@@ -111,37 +112,42 @@ class TasksScaffold extends StatelessWidget {
           );
         },
       ),
-      body: Stack(
+      body: Column(
+        crossAxisAlignment: CrossAxisAlignment.start,
         children: [
           Padding(
             padding: const EdgeInsets.only(
-              left: 12,
-              right: 12,
-            ),
-            child: TasksListWidget(
-              tasks: uiState.tasks,
-              emptyTasksMessage: localizations.empty_tasks,
-              onReorder: callbacks.onReorder,
-              onRemoveTask: (task) =>
-                  _showConfirmationDialogToRemoveTask(context, task),
-              onCompleteTask: callbacks.onCompleteTask,
-              onTap: (task) => {
-                _navigateToTaskScreen(
-                  context,
-                  checklistId: checklistId,
-                  task: task,
-                )
-              },
-            ),
-          ),
-          Padding(
-            padding: const EdgeInsets.only(
-              bottom: 12,
+              bottom: 8,
             ),
             child: ProgressWidget(
               progress: uiState.progress,
             ),
           ),
+          Padding(
+              padding: const EdgeInsets.only(left: 12, right: 12, bottom: 8),
+              child: uiState.tasksCompleteStatus != null
+                  ? CheckAllActionChipWidget(
+                      status: uiState.tasksCompleteStatus!,
+                      onClick: () {
+                        callbacks.onCompleteButtonAction();
+                      },
+                    )
+                  : const SizedBox.shrink()),
+          TasksListWidget(
+            tasks: uiState.tasks,
+            emptyTasksMessage: localizations.empty_tasks,
+            onReorder: callbacks.onReorder,
+            onRemoveTask: (task) =>
+                _showConfirmationDialogToRemoveTask(context, task),
+            onCompleteTask: callbacks.onCompleteTask,
+            onTap: (task) => {
+              _navigateToTaskScreen(
+                context,
+                checklistId: checklistId,
+                task: task,
+              )
+            },
+          ),
         ],
       ),
     );
diff --git a/lib/ui/screens/tasks/tasks_screen_callbacks.dart b/lib/ui/screens/tasks/tasks_screen_callbacks.dart
index ce23894..5414f56 100644
--- a/lib/ui/screens/tasks/tasks_screen_callbacks.dart
+++ b/lib/ui/screens/tasks/tasks_screen_callbacks.dart
@@ -3,12 +3,14 @@ import 'package:todoapp/data/model/task.dart';
 class TasksScreenCallbacks {
   final Function(int?) updateTasks;
   final Function(Task, bool) onCompleteTask;
+  final Function onCompleteButtonAction;
   final Function(Task) onRemoveTask;
   final Function(int oldIndex, int newIndex) onReorder;
   final Function() onShare;
   final Function() onSort;
 
   const TasksScreenCallbacks({
+    required this.onCompleteButtonAction,
     required this.updateTasks,
     required this.onCompleteTask,
     required this.onRemoveTask,
diff --git a/macos/Flutter/GeneratedPluginRegistrant.swift b/macos/Flutter/GeneratedPluginRegistrant.swift
index 57d2162..f76975f 100644
--- a/macos/Flutter/GeneratedPluginRegistrant.swift
+++ b/macos/Flutter/GeneratedPluginRegistrant.swift
@@ -5,12 +5,10 @@
 import FlutterMacOS
 import Foundation
 
-import path_provider_foundation
 import share_plus
 import sqflite_darwin
 
 func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
-  PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
   SharePlusMacosPlugin.register(with: registry.registrar(forPlugin: "SharePlusMacosPlugin"))
   SqflitePlugin.register(with: registry.registrar(forPlugin: "SqflitePlugin"))
 }
diff --git a/pubspec.lock b/pubspec.lock
index 53f18cb..ab64c03 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -5,18 +5,18 @@ packages:
     dependency: transitive
     description:
       name: _fe_analyzer_shared
-      sha256: da0d9209ca76bde579f2da330aeb9df62b6319c834fa7baae052021b0462401f
+      sha256: c209688d9f5a5f26b2fb47a188131a6fb9e876ae9e47af3737c0b4f58a93470d
       url: "https://pub.dev"
     source: hosted
-    version: "85.0.0"
+    version: "91.0.0"
   analyzer:
     dependency: transitive
     description:
       name: analyzer
-      sha256: "974859dc0ff5f37bc4313244b3218c791810d03ab3470a579580279ba971a48d"
+      sha256: f51c8499b35f9b26820cfe914828a6a98a94efd5cc78b37bb7d03debae3a1d08
       url: "https://pub.dev"
     source: hosted
-    version: "7.7.1"
+    version: "8.4.1"
   ansicolor:
     dependency: transitive
     description:
@@ -37,26 +37,26 @@ packages:
     dependency: transitive
     description:
       name: async
-      sha256: "758e6d74e971c3e5aceb4110bfd6698efc7f501675bcfe0c775459a8140750eb"
+      sha256: e2eb0491ba5ddb6177742d2da23904574082139b07c1e33b8503b9f46f3e1a37
       url: "https://pub.dev"
     source: hosted
-    version: "2.13.0"
+    version: "2.13.1"
   auto_route:
     dependency: "direct main"
     description:
       name: auto_route
-      sha256: "6d3ccc11b520b6eff0ab5a2c3d1c43c46d1486249cc746c4bb14486d876e8b43"
+      sha256: e9acfeb3df33d188fce4ad0239ef4238f333b7aa4d95ec52af3c2b9360dcd969
       url: "https://pub.dev"
     source: hosted
-    version: "10.3.0"
+    version: "11.1.0"
   auto_route_generator:
     dependency: "direct dev"
     description:
       name: auto_route_generator
-      sha256: "4d78093dc102eef57c9d53e43454d735f1552039dc9c595ef8cfc7445d9017f2"
+      sha256: "04300eaf5821962aae8b5cd94f67013fd2fd326dc3be212d3ec1ae7470f09834"
       url: "https://pub.dev"
     source: hosted
-    version: "10.2.6"
+    version: "10.4.0"
   bloc:
     dependency: transitive
     description:
@@ -77,18 +77,18 @@ packages:
     dependency: transitive
     description:
       name: build
-      sha256: ce76b1d48875e3233fde17717c23d1f60a91cc631597e49a400c89b475395b1d
+      sha256: aadd943f4f8cc946882c954c187e6115a84c98c81ad1d9c6cbf0895a8c85da9c
       url: "https://pub.dev"
     source: hosted
-    version: "3.1.0"
+    version: "4.0.5"
   build_config:
     dependency: transitive
     description:
       name: build_config
-      sha256: "4f64382b97504dc2fcdf487d5aae33418e08b4703fc21249e4db6d804a4d0187"
+      sha256: "4070d2a59f8eec34c97c86ceb44403834899075f66e8a9d59706f8e7834f6f71"
       url: "https://pub.dev"
     source: hosted
-    version: "1.2.0"
+    version: "1.3.0"
   build_daemon:
     dependency: transitive
     description:
@@ -97,30 +97,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "4.1.1"
-  build_resolvers:
-    dependency: transitive
-    description:
-      name: build_resolvers
-      sha256: d1d57f7807debd7349b4726a19fd32ec8bc177c71ad0febf91a20f84cd2d4b46
-      url: "https://pub.dev"
-    source: hosted
-    version: "3.0.3"
   build_runner:
     dependency: "direct dev"
     description:
       name: build_runner
-      sha256: b24597fceb695969d47025c958f3837f9f0122e237c6a22cb082a5ac66c3ca30
+      sha256: "521daf8d189deb79ba474e43a696b41c49fb3987818dbacf3308f1e03673a75e"
       url: "https://pub.dev"
     source: hosted
-    version: "2.7.1"
-  build_runner_core:
-    dependency: transitive
-    description:
-      name: build_runner_core
-      sha256: "066dda7f73d8eb48ba630a55acb50c4a84a2e6b453b1cb4567f581729e794f7b"
-      url: "https://pub.dev"
-    source: hosted
-    version: "9.3.1"
+    version: "2.13.1"
   built_collection:
     dependency: transitive
     description:
@@ -133,18 +117,18 @@ packages:
     dependency: transitive
     description:
       name: built_value
-      sha256: "7931c90b84bc573fef103548e354258ae4c9d28d140e41961df6843c5d60d4d8"
+      sha256: "0730c18c770d05636a8f945c32a4d7d81cb6e0f0148c8db4ad12e7748f7e49af"
       url: "https://pub.dev"
     source: hosted
-    version: "8.12.3"
+    version: "8.12.5"
   characters:
     dependency: transitive
     description:
       name: characters
-      sha256: f71061c654a3380576a52b451dd5532377954cf9dbd272a78fc8479606670803
+      sha256: faf38497bda5ead2a8c7615f4f7939df04333478bf32e4173fcb06d428b5716b
       url: "https://pub.dev"
     source: hosted
-    version: "1.4.0"
+    version: "1.4.1"
   checked_yaml:
     dependency: transitive
     description:
@@ -173,10 +157,10 @@ packages:
     dependency: transitive
     description:
       name: code_assets
-      sha256: ae0db647e668cbb295a3527f0938e4039e004c80099dce2f964102373f5ce0b5
+      sha256: "83ccdaa064c980b5596c35dd64a8d3ecc68620174ab9b90b6343b753aa721687"
       url: "https://pub.dev"
     source: hosted
-    version: "0.19.10"
+    version: "1.0.0"
   code_builder:
     dependency: transitive
     description:
@@ -213,10 +197,10 @@ packages:
     dependency: transitive
     description:
       name: cross_file
-      sha256: "701dcfc06da0882883a2657c445103380e53e647060ad8d9dfb710c100996608"
+      sha256: "28bb3ae56f117b5aec029d702a90f57d285cd975c3c5c281eaca38dbc47c5937"
       url: "https://pub.dev"
     source: hosted
-    version: "0.3.5+1"
+    version: "0.3.5+2"
   crypto:
     dependency: transitive
     description:
@@ -229,26 +213,26 @@ packages:
     dependency: "direct main"
     description:
       name: cupertino_icons
-      sha256: ba631d1c7f7bef6b729a622b7b752645a2d076dba9976925b8f25725a30e1ee6
+      sha256: "41e005c33bd814be4d3096aff55b1908d419fde52ca656c8c47719ec745873cd"
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.8"
+    version: "1.0.9"
   dart_style:
     dependency: transitive
     description:
       name: dart_style
-      sha256: "8a0e5fba27e8ee025d2ffb4ee820b4e6e2cf5e4246a6b1a477eb66866947e0bb"
+      sha256: a9c30492da18ff84efe2422ba2d319a89942d93e58eb0b73d32abe822ef54b7b
       url: "https://pub.dev"
     source: hosted
-    version: "3.1.1"
+    version: "3.1.3"
   eagle_eye:
     dependency: "direct dev"
     description:
       name: eagle_eye
-      sha256: "9373c193d5706b112a51afff4d4f20fa5b21cc375e609828c0d2b80c0cab4e1c"
+      sha256: "1ffec524a01531d385f12b30e4f2ab067b9c6f5f39442afd69d68df0f01a5d37"
       url: "https://pub.dev"
     source: hosted
-    version: "2.0.0"
+    version: "2.0.1"
   equatable:
     dependency: "direct main"
     description:
@@ -269,10 +253,10 @@ packages:
     dependency: transitive
     description:
       name: ffi
-      sha256: d07d37192dbf97461359c1518788f203b0c9102cfd2c35a716b823741219542c
+      sha256: "6d7fd89431262d8f3125e81b50d3847a091d846eafcd4fdb88dd06f36d705a45"
       url: "https://pub.dev"
     source: hosted
-    version: "2.1.5"
+    version: "2.2.0"
   file:
     dependency: transitive
     description:
@@ -361,10 +345,10 @@ packages:
     dependency: "direct main"
     description:
       name: get_it
-      sha256: ae78de7c3f2304b8d81f2bb6e320833e5e81de942188542328f074978cc0efa9
+      sha256: "568d62f0e68666fb5d95519743b3c24a34c7f19d834b0658c46e26d778461f66"
       url: "https://pub.dev"
     source: hosted
-    version: "8.3.0"
+    version: "9.2.1"
   glob:
     dependency: transitive
     description:
@@ -385,10 +369,10 @@ packages:
     dependency: transitive
     description:
       name: hooks
-      sha256: "5410b9f4f6c9f01e8ff0eb81c9801ea13a3c3d39f8f0b1613cda08e27eab3c18"
+      sha256: e79ed1e8e1929bc6ecb6ec85f0cb519c887aa5b423705ded0d0f2d9226def388
       url: "https://pub.dev"
     source: hosted
-    version: "0.20.5"
+    version: "1.0.2"
   hotreloader:
     dependency: transitive
     description:
@@ -425,10 +409,10 @@ packages:
     dependency: "direct dev"
     description:
       name: injectable_generator
-      sha256: "09c55dba52b53d17411b90134a6751270b8930abd2529e2637d700fc99b0d5b5"
+      sha256: "309c3f3546160dd00b575f16b341a6a3025479950441bcc7fcb2f8404a40d326"
       url: "https://pub.dev"
     source: hosted
-    version: "2.8.1"
+    version: "2.9.1"
   intl:
     dependency: "direct main"
     description:
@@ -445,22 +429,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.5"
-  js:
-    dependency: transitive
-    description:
-      name: js
-      sha256: "53385261521cc4a0c4658fd0ad07a7d14591cf8fc33abbceae306ddb974888dc"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.7.2"
   json_annotation:
     dependency: transitive
     description:
       name: json_annotation
-      sha256: "1ce844379ca14835a50d2f019a3099f419082cfdd231cd86a142af94dd5c6bb1"
+      sha256: cb09e7dac6210041fad964ed7fbee004f14258b4eca4040f72d1234062ace4c8
       url: "https://pub.dev"
     source: hosted
-    version: "4.9.0"
+    version: "4.11.0"
   leak_tracker:
     dependency: transitive
     description:
@@ -489,18 +465,18 @@ packages:
     dependency: transitive
     description:
       name: lean_builder
-      sha256: ef5cd5f907157eb7aa87d1704504b5a6386d2cbff88a3c2b3344477bab323ee9
+      sha256: "4f3d70c34c52cc5034e8cc6f53d35aa3a32fb373b78fb4c29cf45cd1dcf06942"
       url: "https://pub.dev"
     source: hosted
-    version: "0.1.2"
+    version: "0.1.5"
   lints:
     dependency: transitive
     description:
       name: lints
-      sha256: a5e2b223cb7c9c8efdc663ef484fdd95bb243bff242ef5b13e26883547fce9a0
+      sha256: "12f842a479589fea194fe5c5a3095abc7be0c1f2ddfa9a0e76aed1dbd26a87df"
       url: "https://pub.dev"
     source: hosted
-    version: "6.0.0"
+    version: "6.1.0"
   logging:
     dependency: transitive
     description:
@@ -513,18 +489,18 @@ packages:
     dependency: transitive
     description:
       name: matcher
-      sha256: dc58c723c3c24bf8d3e2d3ad3f2f9d7bd9cf43ec6feaa64181775e60190153f2
+      sha256: "12956d0ad8390bbcc63ca2e1469c0619946ccb52809807067a7020d57e647aa6"
       url: "https://pub.dev"
     source: hosted
-    version: "0.12.17"
+    version: "0.12.18"
   material_color_utilities:
     dependency: transitive
     description:
       name: material_color_utilities
-      sha256: f7142bb1154231d7ea5f96bc7bde4bda2a0945d2806bb11670e30b850d56bdec
+      sha256: "9c337007e82b1889149c82ed242ed1cb24a66044e30979c44912381e9be4c48b"
       url: "https://pub.dev"
     source: hosted
-    version: "0.11.1"
+    version: "0.13.0"
   meta:
     dependency: transitive
     description:
@@ -545,10 +521,10 @@ packages:
     dependency: transitive
     description:
       name: native_toolchain_c
-      sha256: f8872ea6c7a50ce08db9ae280ca2b8efdd973157ce462826c82f3c3051d154ce
+      sha256: "6ba77bb18063eebe9de401f5e6437e95e1438af0a87a3a39084fbd37c90df572"
       url: "https://pub.dev"
     source: hosted
-    version: "0.17.2"
+    version: "0.17.6"
   nested:
     dependency: transitive
     description:
@@ -569,10 +545,10 @@ packages:
     dependency: transitive
     description:
       name: objective_c
-      sha256: "55eb67ede1002d9771b3f9264d2c9d30bc364f0267bc1c6cc0883280d5f0c7cb"
+      sha256: "100a1c87616ab6ed41ec263b083c0ef3261ee6cd1dc3b0f35f8ddfa4f996fe52"
       url: "https://pub.dev"
     source: hosted
-    version: "9.2.2"
+    version: "9.3.0"
   package_config:
     dependency: transitive
     description:
@@ -601,10 +577,10 @@ packages:
     dependency: transitive
     description:
       name: path_provider_android
-      sha256: f2c65e21139ce2c3dad46922be8272bb5963516045659e71bb16e151c93b580e
+      sha256: "149441ca6e4f38193b2e004c0ca6376a3d11f51fa5a77552d8bd4d2b0c0912ba"
       url: "https://pub.dev"
     source: hosted
-    version: "2.2.22"
+    version: "2.2.23"
   path_provider_foundation:
     dependency: transitive
     description:
@@ -750,10 +726,10 @@ packages:
     dependency: transitive
     description:
       name: source_gen
-      sha256: "7b19d6ba131c6eb98bfcbf8d56c1a7002eba438af2e7ae6f8398b2b0f4f381e3"
+      sha256: "732792cfd197d2161a65bb029606a46e0a18ff30ef9e141a7a82172b05ea8ecd"
       url: "https://pub.dev"
     source: hosted
-    version: "3.1.0"
+    version: "4.2.2"
   source_map_stack_trace:
     dependency: transitive
     description:
@@ -774,10 +750,10 @@ packages:
     dependency: transitive
     description:
       name: source_span
-      sha256: "254ee5351d6cb365c859e20ee823c3bb479bf4a293c22d17a9f1bf144ce86f7c"
+      sha256: "56a02f1f4cd1a2d96303c0144c93bd6d909eea6bee6bf5a0e0b685edbd4c47ab"
       url: "https://pub.dev"
     source: hosted
-    version: "1.10.1"
+    version: "1.10.2"
   sqflite:
     dependency: "direct main"
     description:
@@ -790,10 +766,10 @@ packages:
     dependency: transitive
     description:
       name: sqflite_android
-      sha256: ecd684501ebc2ae9a83536e8b15731642b9570dc8623e0073d227d0ee2bfea88
+      sha256: "881e28efdcc9950fd8e9bb42713dcf1103e62a2e7168f23c9338d82db13dec40"
       url: "https://pub.dev"
     source: hosted
-    version: "2.4.2+2"
+    version: "2.4.2+3"
   sqflite_common:
     dependency: transitive
     description:
@@ -870,34 +846,26 @@ packages:
     dependency: "direct dev"
     description:
       name: test
-      sha256: "75906bf273541b676716d1ca7627a17e4c4070a3a16272b7a3dc7da3b9f3f6b7"
+      sha256: "54c516bbb7cee2754d327ad4fca637f78abfc3cbcc5ace83b3eda117e42cd71a"
       url: "https://pub.dev"
     source: hosted
-    version: "1.26.3"
+    version: "1.29.0"
   test_api:
     dependency: transitive
     description:
       name: test_api
-      sha256: ab2726c1a94d3176a45960b6234466ec367179b87dd74f1611adb1f3b5fb9d55
+      sha256: "93167629bfc610f71560ab9312acdda4959de4df6fac7492c89ff0d3886f6636"
       url: "https://pub.dev"
     source: hosted
-    version: "0.7.7"
+    version: "0.7.9"
   test_core:
     dependency: transitive
     description:
       name: test_core
-      sha256: "0cc24b5ff94b38d2ae73e1eb43cc302b77964fbf67abad1e296025b78deb53d0"
-      url: "https://pub.dev"
-    source: hosted
-    version: "0.6.12"
-  timing:
-    dependency: transitive
-    description:
-      name: timing
-      sha256: "62ee18aca144e4a9f29d212f5a4c6a053be252b895ab14b5821996cff4ed90fe"
+      sha256: "394f07d21f0f2255ec9e3989f21e54d3c7dc0e6e9dbce160e5a9c1a6be0e2943"
       url: "https://pub.dev"
     source: hosted
-    version: "1.0.2"
+    version: "0.6.15"
   typed_data:
     dependency: transitive
     description:
@@ -942,10 +910,10 @@ packages:
     dependency: transitive
     description:
       name: uuid
-      sha256: a11b666489b1954e01d992f3d601b1804a33937b5a8fe677bd26b8a9f96f96e8
+      sha256: "1fef9e8e11e2991bb773070d4656b7bd5d850967a2456cfc83cf47925ba79489"
       url: "https://pub.dev"
     source: hosted
-    version: "4.5.2"
+    version: "4.5.3"
   vector_math:
     dependency: transitive
     description:
diff --git a/pubspec.yaml b/pubspec.yaml
index 87f1f0e..f860e81 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -16,7 +16,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
 # In Windows, build-name is used as the major, minor, and patch parts
 # of the product and file versions while build-number is used as the build suffix.
-version: 1.0.0+16
+version: 1.2.0
 
 environment:
   sdk: ^3.5.0
@@ -38,7 +38,7 @@ dependencies:
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.8
-  get_it: ^8.0.3
+  get_it: ^9.2.1
   equatable: ^2.0.7
   flutter_bloc: ^9.1.1
   sqflite: ^2.4.2
@@ -47,7 +47,7 @@ dependencies:
   freezed: ^3.0.6
   path: ^1.9.1
   share_plus: 12.0.1
-  auto_route: ^10.1.0+1
+  auto_route: ^11.1.0
   flutter_expandable_fab: ^2.5.2
 
 dev_dependencies:
@@ -64,7 +64,7 @@ dev_dependencies:
   injectable_generator: ^2.5.0
   build_runner: ^2.5.4
   auto_route_generator: ^10.1.0
-  eagle_eye: ^2.0.0
+  eagle_eye: ^2.0.1
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec
diff --git a/test/domain/format_task_list_message_use_case_test.dart b/test/domain/format_task_list_message_use_case_test.dart
deleted file mode 100644
index 6f0066e..0000000
--- a/test/domain/format_task_list_message_use_case_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-import 'package:flutter_test/flutter_test.dart';
-import 'package:todoapp/data/model/task.dart';
-import 'package:todoapp/domain/format_task_list_message_use_case.dart';
-
-void main() {
-  test(
-    'formatTaskList -> test empty task list',
-    () {
-      // Arrange
-      final formatTaskListMessageUseCase = FormatTaskListMessageUseCaseImpl();
-
-      // Act
-      final result = formatTaskListMessageUseCase.formatTaskList(
-        tasks: [],
-      );
-
-      // Assert
-      expect(result, '');
-    },
-  );
-
-  test(
-    'formatTaskList -> test only not completed',
-    () {
-      // Arrange
-      final formatTaskListMessageUseCase = FormatTaskListMessageUseCaseImpl();
-
-      // Act
-      final result = formatTaskListMessageUseCase.formatTaskList(
-        tasks: [
-          const Task(
-            id: null,
-            title: 'Task A - Not completed',
-            isCompleted: false,
-          ),
-          const Task(
-            id: null,
-            title: 'Task B - Not completed',
-            isCompleted: false,
-          ),
-          const Task(
-            id: null,
-            title: 'Task C - Completed',
-            isCompleted: true,
-          ),
-        ],
-      );
-
-      // Assert
-      expect(
-        result,
-        '- Task A - Not completed\n'
-        '- Task B - Not completed\n',
-      );
-    },
-  );
-}
diff --git a/test/domain/progress_counter_use_case_test.dart b/test/domain/progress_counter_use_case_test.dart
deleted file mode 100644
index 64e7f3a..0000000
--- a/test/domain/progress_counter_use_case_test.dart
+++ /dev/null
@@ -1,158 +0,0 @@
-import 'package:flutter_test/flutter_test.dart';
-import 'package:todoapp/data/model/task.dart';
-import 'package:todoapp/domain/progress_counter_use_case.dart';
-
-void main() {
-  test(
-    'calculateProgress -> test empty task list',
-    () {
-      // Arrange
-      final progressCounterUseCase = ProgressCounterUseCaseImpl();
-
-      // Act
-      final result = progressCounterUseCase.calculateProgress(
-        tasks: [],
-      );
-
-      // Assert
-      expect(result, 0.0);
-    },
-  );
-
-  test(
-    'calculateProgress -> test a positive progress',
-    () {
-      // Arrange
-      final progressCounterUseCase = ProgressCounterUseCaseImpl();
-
-      // Act
-      final result = progressCounterUseCase.calculateProgress(
-        tasks: [
-          const Task(
-            id: null,
-            title: 'Task A - Not completed',
-            isCompleted: false,
-          ),
-          const Task(
-            id: null,
-            title: 'Task B - Completed',
-            isCompleted: true,
-          ),
-          const Task(
-            id: null,
-            title: 'Task C - Completed',
-            isCompleted: true,
-          ),
-        ],
-      );
-
-      // Assert
-      expect(
-        result,
-        0.6666666666666666,
-      );
-    },
-  );
-
-  test(
-    'calculateProgress -> test a bad progress',
-    () {
-      // Arrange
-      final progressCounterUseCase = ProgressCounterUseCaseImpl();
-
-      // Act
-      final result = progressCounterUseCase.calculateProgress(
-        tasks: [
-          const Task(
-            id: null,
-            title: 'Task A - Not completed',
-            isCompleted: false,
-          ),
-          const Task(
-            id: null,
-            title: 'Task B - Not Completed',
-            isCompleted: false,
-          ),
-          const Task(
-            id: null,
-            title: 'Task C - Completed',
-            isCompleted: true,
-          ),
-        ],
-      );
-
-      // Assert
-      expect(
-        result,
-        0.3333333333333333,
-      );
-    },
-  );
-
-  test(
-    'calculateProgress -> test a great progress',
-    () {
-      // Arrange
-      final progressCounterUseCase = ProgressCounterUseCaseImpl();
-
-      // Act
-      final result = progressCounterUseCase.calculateProgress(
-        tasks: [
-          const Task(
-            id: null,
-            title: 'Task A - Completed',
-            isCompleted: true,
-          ),
-          const Task(
-            id: null,
-            title: 'Task B - Completed',
-            isCompleted: true,
-          ),
-          const Task(
-            id: null,
-            title: 'Task C - Completed',
-            isCompleted: true,
-          ),
-        ],
-      );
-
-      // Assert
-      expect(
-        result,
-        1.0,
-      );
-    },
-  );
-
-  test(
-    'calculateProgress -> test a horrible progress',
-    () {
-      // Arrange
-      final progressCounterUseCase = ProgressCounterUseCaseImpl();
-
-      // Act
-      final result = progressCounterUseCase.calculateProgress(
-        tasks: [
-          const Task(
-            id: null,
-            title: 'Task A - Not Completed',
-            isCompleted: false,
-          ),
-          const Task(
-            id: null,
-            title: 'Task B - Not Completed',
-            isCompleted: false,
-          ),
-          const Task(
-            id: null,
-            title: 'Task C - Not Completed',
-            isCompleted: false,
-          ),
-        ],
-      );
-
-      // Assert
-      expect(result, 0.0);
-    },
-  );
-}
diff --git a/test/domain/should_show_share_button_use_case_test.dart b/test/domain/should_show_share_button_use_case_test.dart
deleted file mode 100644
index f002967..0000000
--- a/test/domain/should_show_share_button_use_case_test.dart
+++ /dev/null
@@ -1,84 +0,0 @@
-import 'package:flutter_test/flutter_test.dart';
-import 'package:todoapp/data/model/task.dart';
-import 'package:todoapp/domain/should_show_share_button_use_case.dart';
-
-void main() {
-  test(
-    'shouldShowShareButton -> test empty task list',
-    () {
-      // Arrange
-      final shouldShowShareButtonUseCase = ShouldShowShareButtonUseCaseImpl();
-
-      // Act
-      final result = shouldShowShareButtonUseCase.shouldShowShareButton([]);
-
-      // Assert
-      expect(result, false);
-    },
-  );
-
-  test(
-    'shouldShowShareButton -> there is a task not completed',
-    () {
-      // Arrange
-      final shouldShowShareButtonUseCase = ShouldShowShareButtonUseCaseImpl();
-
-      // Act
-      final result = shouldShowShareButtonUseCase.shouldShowShareButton(
-        [
-          const Task(
-            id: null,
-            title: 'Task A - Not completed',
-            isCompleted: false,
-          ),
-          const Task(
-            id: null,
-            title: 'Task B - Completed',
-            isCompleted: true,
-          ),
-          const Task(
-            id: null,
-            title: 'Task C - Completed',
-            isCompleted: true,
-          ),
-        ],
-      );
-
-      // Assert
-      expect(
-        result,
-        true,
-      );
-    },
-  );
-
-  test(
-    'shouldShowShareButton -> there is none not completed task',
-    () {
-      // Arrange
-      final shouldShowShareButtonUseCase = ShouldShowShareButtonUseCaseImpl();
-
-      // Act
-      final result = shouldShowShareButtonUseCase.shouldShowShareButton(
-        [
-          const Task(
-            id: null,
-            title: 'Task A -Completed',
-            isCompleted: true,
-          ),
-          const Task(
-            id: null,
-            title: 'Task B - Completed',
-            isCompleted: true,
-          ),
-        ],
-      );
-
-      // Assert
-      expect(
-        result,
-        false,
-      );
-    },
-  );
-}
diff --git a/test/domain/tasks_comparator_use_case_test.dart b/test/domain/tasks_comparator_use_case_test.dart
deleted file mode 100644
index 05b8625..0000000
--- a/test/domain/tasks_comparator_use_case_test.dart
+++ /dev/null
@@ -1,111 +0,0 @@
-import 'package:flutter_test/flutter_test.dart';
-import 'package:todoapp/data/model/task.dart';
-import 'package:todoapp/domain/tasks_comparator_use_case.dart';
-
-void main() {
-  test(
-    'areThemEqual -> test empty task list',
-    () {
-      // Arrange
-      final tasksComparatorUseCase = TasksComparatorUseCaseImpl();
-
-      // Act
-      final result = tasksComparatorUseCase.areThemEqual(
-        oldList: [],
-        newList: [],
-      );
-
-      // Assert
-      expect(result, true);
-    },
-  );
-
-  test(
-    'areThemEqual -> test different sizes',
-    () {
-      // Arrange
-      final tasksComparatorUseCase = TasksComparatorUseCaseImpl();
-
-      // Act
-      final result = tasksComparatorUseCase.areThemEqual(
-        oldList: [const Task(isCompleted: false, title: 'test', id: 1)],
-        newList: [
-          const Task(isCompleted: false, title: 'test', id: 1),
-          const Task(isCompleted: true, title: 'test2', id: 2)
-        ],
-      );
-
-      // Assert
-      expect(result, false);
-    },
-  );
-
-  test(
-    'areThemEqual -> test same size with different elements',
-    () {
-      // Arrange
-      final tasksComparatorUseCase = TasksComparatorUseCaseImpl();
-
-      // Act
-      final result = tasksComparatorUseCase.areThemEqual(
-        oldList: [
-          const Task(isCompleted: true, title: 'test2', id: 2),
-          const Task(isCompleted: false, title: 'test1', id: 1)
-        ],
-        newList: [
-          const Task(isCompleted: false, title: 'test1', id: 1),
-          const Task(isCompleted: true, title: 'test2', id: 2),
-        ],
-      );
-
-      // Assert
-      expect(result, false);
-    },
-  );
-
-  test(
-    'areThemEqual -> test same size with equal elements but different values',
-    () {
-      // Arrange
-      final tasksComparatorUseCase = TasksComparatorUseCaseImpl();
-
-      // Act
-      final result = tasksComparatorUseCase.areThemEqual(
-        oldList: [
-          const Task(isCompleted: true, title: 'test1', id: 1),
-          const Task(isCompleted: false, title: 'test2', id: 2)
-        ],
-        newList: [
-          const Task(isCompleted: true, title: 'test1', id: 1),
-          const Task(isCompleted: true, title: 'test2', id: 2),
-        ],
-      );
-
-      // Assert
-      expect(result, false);
-    },
-  );
-
-  test(
-    'areThemEqual -> test same size with equal elements + equal values',
-    () {
-      // Arrange
-      final tasksComparatorUseCase = TasksComparatorUseCaseImpl();
-
-      // Act
-      final result = tasksComparatorUseCase.areThemEqual(
-        oldList: [
-          const Task(isCompleted: true, title: 'test1', id: 1),
-          const Task(isCompleted: false, title: 'test2', id: 2)
-        ],
-        newList: [
-          const Task(isCompleted: true, title: 'test1', id: 1),
-          const Task(isCompleted: false, title: 'test2', id: 2),
-        ],
-      );
-
-      // Assert
-      expect(result, true);
-    },
-  );
-}
diff --git a/test/domain/tasks_list_sorter_comparator_test.dart b/test/domain/tasks_list_sorter_comparator_test.dart
new file mode 100644
index 0000000..b8f2928
--- /dev/null
+++ b/test/domain/tasks_list_sorter_comparator_test.dart
@@ -0,0 +1,113 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:todoapp/data/model/task.dart';
+import 'package:todoapp/domain/task_list_sort_helper.dart';
+
+void main() {
+  group('comparator tasks', () {
+    test(
+      'areThemEqual -> test empty task list',
+      () {
+        // Arrange
+        final helper = TaskListSortHelperImpl();
+
+        // Act
+        final result = helper.areThemEqual(
+          oldList: [],
+          newList: [],
+        );
+
+        // Assert
+        expect(result, true);
+      },
+    );
+
+    test(
+      'areThemEqual -> test different sizes',
+      () {
+        // Arrange
+        final helper = TaskListSortHelperImpl();
+
+        // Act
+        final result = helper.areThemEqual(
+          oldList: [const Task(isCompleted: false, title: 'test', id: 1)],
+          newList: [
+            const Task(isCompleted: false, title: 'test', id: 1),
+            const Task(isCompleted: true, title: 'test2', id: 2)
+          ],
+        );
+
+        // Assert
+        expect(result, false);
+      },
+    );
+
+    test(
+      'areThemEqual -> test same size with different elements',
+      () {
+        // Arrange
+        final helper = TaskListSortHelperImpl();
+
+        // Act
+        final result = helper.areThemEqual(
+          oldList: [
+            const Task(isCompleted: true, title: 'test2', id: 2),
+            const Task(isCompleted: false, title: 'test1', id: 1)
+          ],
+          newList: [
+            const Task(isCompleted: false, title: 'test1', id: 1),
+            const Task(isCompleted: true, title: 'test2', id: 2),
+          ],
+        );
+
+        // Assert
+        expect(result, false);
+      },
+    );
+
+    test(
+      'areThemEqual -> test same size with equal elements but different values',
+      () {
+        // Arrange
+        final helper = TaskListSortHelperImpl();
+
+        // Act
+        final result = helper.areThemEqual(
+          oldList: [
+            const Task(isCompleted: true, title: 'test1', id: 1),
+            const Task(isCompleted: false, title: 'test2', id: 2)
+          ],
+          newList: [
+            const Task(isCompleted: true, title: 'test1', id: 1),
+            const Task(isCompleted: true, title: 'test2', id: 2),
+          ],
+        );
+
+        // Assert
+        expect(result, false);
+      },
+    );
+
+    test(
+      'areThemEqual -> test same size with equal elements + equal values',
+      () {
+        // Arrange
+        final helper = TaskListSortHelperImpl();
+
+        // Act
+        final result = helper.areThemEqual(
+          oldList: [
+            const Task(isCompleted: true, title: 'test1', id: 1),
+            const Task(isCompleted: false, title: 'test2', id: 2)
+          ],
+          newList: [
+            const Task(isCompleted: true, title: 'test1', id: 1),
+            const Task(isCompleted: false, title: 'test2', id: 2),
+          ],
+        );
+
+        // Assert
+        expect(result, true);
+      },
+    );
+  });
+}
diff --git a/test/domain/tasks_list_sorter_sort_test.dart b/test/domain/tasks_list_sorter_sort_test.dart
new file mode 100644
index 0000000..f88121c
--- /dev/null
+++ b/test/domain/tasks_list_sorter_sort_test.dart
@@ -0,0 +1,59 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:todoapp/data/model/task.dart';
+import 'package:todoapp/domain/task_list_sort_helper.dart';
+
+void main() {
+  group('sort tasks', () {
+    test(
+      'sortByCompletedStatus -> test empty task list',
+      () {
+        // Arrange
+        final helper = TaskListSortHelperImpl();
+
+        // Act
+        final result = helper.sortByCompletedStatus([]);
+
+        // Assert
+        expect(result, []);
+      },
+    );
+
+    test(
+      'sortByCompletedStatus -> there is a task not completed',
+      () {
+        // Arrange
+        final helper = TaskListSortHelperImpl();
+        const taskB = Task(
+          id: null,
+          title: 'Task B - Completed',
+          isCompleted: true,
+        );
+        const taskA = Task(
+          id: null,
+          title: 'Task A - Not completed',
+          isCompleted: false,
+        );
+        const taskC = Task(
+          id: null,
+          title: 'Task C - Completed',
+          isCompleted: true,
+        );
+
+        // Act
+        final result = helper.sortByCompletedStatus(
+          [
+            taskB,
+            taskA,
+            taskC,
+          ],
+        );
+
+        // Assert
+        expect(
+          result,
+          [taskA, taskB, taskC],
+        );
+      },
+    );
+  });
+}
diff --git a/test/domain/tasks_list_summary_helper_test.dart b/test/domain/tasks_list_summary_helper_test.dart
new file mode 100644
index 0000000..a8a6674
--- /dev/null
+++ b/test/domain/tasks_list_summary_helper_test.dart
@@ -0,0 +1,300 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:todoapp/data/model/task.dart';
+import 'package:todoapp/domain/task_list_summary_helper.dart';
+
+void main() {
+  group('Format tasks list', () {
+    test(
+      'formatTaskList -> test empty task list',
+      () {
+        // Arrange
+        final formatTaskListMessageUseCase = TaskListSummaryHelperImpl();
+
+        // Act
+        final result = formatTaskListMessageUseCase.formatTaskList(
+          tasks: [],
+        );
+
+        // Assert
+        expect(result, '');
+      },
+    );
+
+    test(
+      'formatTaskList -> test only not completed',
+      () {
+        // Arrange
+        final formatTaskListMessageUseCase = TaskListSummaryHelperImpl();
+
+        // Act
+        final result = formatTaskListMessageUseCase.formatTaskList(
+          tasks: [
+            const Task(
+              id: null,
+              title: 'Task A - Not completed',
+              isCompleted: false,
+            ),
+            const Task(
+              id: null,
+              title: 'Task B - Not completed',
+              isCompleted: false,
+            ),
+            const Task(
+              id: null,
+              title: 'Task C - Completed',
+              isCompleted: true,
+            ),
+          ],
+        );
+
+        // Assert
+        expect(
+          result,
+          '- Task A - Not completed\n'
+          '- Task B - Not completed\n',
+        );
+      },
+    );
+  });
+
+  group('should show share button', () {
+    test(
+      'shouldShowShareButton -> test empty task list',
+      () {
+        // Arrange
+        final helper = TaskListSummaryHelperImpl();
+
+        // Act
+        final result = helper.shouldShowShareButton(
+          tasks: [],
+        );
+
+        // Assert
+        expect(result, false);
+      },
+    );
+
+    test(
+      'shouldShowShareButton -> there is a task not completed',
+      () {
+        // Arrange
+        final helper = TaskListSummaryHelperImpl();
+
+        // Act
+        final result = helper.shouldShowShareButton(
+          tasks: [
+            const Task(
+              id: null,
+              title: 'Task A - Not completed',
+              isCompleted: false,
+            ),
+            const Task(
+              id: null,
+              title: 'Task B - Completed',
+              isCompleted: true,
+            ),
+            const Task(
+              id: null,
+              title: 'Task C - Completed',
+              isCompleted: true,
+            ),
+          ],
+        );
+
+        // Assert
+        expect(
+          result,
+          true,
+        );
+      },
+    );
+
+    test(
+      'shouldShowShareButton -> there is none not completed task',
+      () {
+        // Arrange
+        final helper = TaskListSummaryHelperImpl();
+
+        // Act
+        final result = helper.shouldShowShareButton(
+          tasks: [
+            const Task(
+              id: null,
+              title: 'Task A -Completed',
+              isCompleted: true,
+            ),
+            const Task(
+              id: null,
+              title: 'Task B - Completed',
+              isCompleted: true,
+            ),
+          ],
+        );
+
+        // Assert
+        expect(
+          result,
+          false,
+        );
+      },
+    );
+  });
+
+  group(
+    'calculate tasks progress',
+    () {
+      test(
+        'calculateProgress -> test empty task list',
+        () {
+          // Arrange
+          final helper = TaskListSummaryHelperImpl();
+
+          // Act
+          final result = helper.calculateProgress(
+            tasks: [],
+          );
+
+          // Assert
+          expect(result, 0.0);
+        },
+      );
+
+      test(
+        'calculateProgress -> test a positive progress',
+        () {
+          // Arrange
+          final helper = TaskListSummaryHelperImpl();
+
+          // Act
+          final result = helper.calculateProgress(
+            tasks: [
+              const Task(
+                id: null,
+                title: 'Task A - Not completed',
+                isCompleted: false,
+              ),
+              const Task(
+                id: null,
+                title: 'Task B - Completed',
+                isCompleted: true,
+              ),
+              const Task(
+                id: null,
+                title: 'Task C - Completed',
+                isCompleted: true,
+              ),
+            ],
+          );
+
+          // Assert
+          expect(
+            result,
+            0.6666666666666666,
+          );
+        },
+      );
+
+      test(
+        'calculateProgress -> test a bad progress',
+        () {
+          // Arrange
+          final helper = TaskListSummaryHelperImpl();
+
+          // Act
+          final result = helper.calculateProgress(
+            tasks: [
+              const Task(
+                id: null,
+                title: 'Task A - Not completed',
+                isCompleted: false,
+              ),
+              const Task(
+                id: null,
+                title: 'Task B - Not Completed',
+                isCompleted: false,
+              ),
+              const Task(
+                id: null,
+                title: 'Task C - Completed',
+                isCompleted: true,
+              ),
+            ],
+          );
+
+          // Assert
+          expect(
+            result,
+            0.3333333333333333,
+          );
+        },
+      );
+
+      test(
+        'calculateProgress -> test a great progress',
+        () {
+          // Arrange
+          final helper = TaskListSummaryHelperImpl();
+
+          // Act
+          final result = helper.calculateProgress(
+            tasks: [
+              const Task(
+                id: null,
+                title: 'Task A - Completed',
+                isCompleted: true,
+              ),
+              const Task(
+                id: null,
+                title: 'Task B - Completed',
+                isCompleted: true,
+              ),
+              const Task(
+                id: null,
+                title: 'Task C - Completed',
+                isCompleted: true,
+              ),
+            ],
+          );
+
+          // Assert
+          expect(
+            result,
+            1.0,
+          );
+        },
+      );
+
+      test(
+        'calculateProgress -> test a horrible progress',
+        () {
+          // Arrange
+          final helper = TaskListSummaryHelperImpl();
+
+          // Act
+          final result = helper.calculateProgress(
+            tasks: [
+              const Task(
+                id: null,
+                title: 'Task A - Not Completed',
+                isCompleted: false,
+              ),
+              const Task(
+                id: null,
+                title: 'Task B - Not Completed',
+                isCompleted: false,
+              ),
+              const Task(
+                id: null,
+                title: 'Task C - Not Completed',
+                isCompleted: false,
+              ),
+            ],
+          );
+
+          // Assert
+          expect(result, 0.0);
+        },
+      );
+    },
+  );
+}
diff --git a/test/domain/tasks_sorter_use_case_test.dart b/test/domain/tasks_sorter_use_case_test.dart
deleted file mode 100644
index bc73607..0000000
--- a/test/domain/tasks_sorter_use_case_test.dart
+++ /dev/null
@@ -1,57 +0,0 @@
-import 'package:flutter_test/flutter_test.dart';
-import 'package:todoapp/data/model/task.dart';
-import 'package:todoapp/domain/tasks_sorter_use_case.dart';
-
-void main() {
-  test(
-    'sortByCompletedStatus -> test empty task list',
-    () {
-      // Arrange
-      final tasksSorterUseCase = TasksSorterUseCaseImpl();
-
-      // Act
-      final result = tasksSorterUseCase.sortByCompletedStatus([]);
-
-      // Assert
-      expect(result, []);
-    },
-  );
-
-  test(
-    'sortByCompletedStatus -> there is a task not completed',
-    () {
-      // Arrange
-      final tasksSorterUseCase = TasksSorterUseCaseImpl();
-      const taskB = Task(
-        id: null,
-        title: 'Task B - Completed',
-        isCompleted: true,
-      );
-      const taskA = Task(
-        id: null,
-        title: 'Task A - Not completed',
-        isCompleted: false,
-      );
-      const taskC = Task(
-        id: null,
-        title: 'Task C - Completed',
-        isCompleted: true,
-      );
-
-      // Act
-      final result = tasksSorterUseCase.sortByCompletedStatus(
-        [
-          taskB,
-          taskA,
-          taskC,
-        ],
-      );
-
-      // Assert
-      expect(
-        result,
-        [taskA, taskB, taskC],
-      );
-    },
-  );
-}
diff --git a/test/test_utils/fakes/fake_callbacks.dart b/test/test_utils/fakes/fake_callbacks.dart
index 0ce151a..19ed386 100644
--- a/test/test_utils/fakes/fake_callbacks.dart
+++ b/test/test_utils/fakes/fake_callbacks.dart
@@ -3,6 +3,7 @@ import 'package:todoapp/ui/screens/tasks/tasks_screen_callbacks.dart';
 class FakeCallbacks {
   static final emptyTasksScreenCallbacks = TasksScreenCallbacks(
     updateTasks: (_) => const {},
+    onCompleteButtonAction: (_) => const {},
     onShare: () => const {},
     onCompleteTask: (_, __) => const {},
     onRemoveTask: (_) => const {},
diff --git a/test/test_utils/fakes/fake_repository.dart b/test/test_utils/fakes/fake_repository.dart
index 23974aa..d8d3cea 100644
--- a/test/test_utils/fakes/fake_repository.dart
+++ b/test/test_utils/fakes/fake_repository.dart
@@ -81,4 +81,12 @@ class FakeRepository implements TodoRepository {
       return Future.value(false);
     }
   }
+
+  @override
+  Future<bool> updateTasks(List<Task> tasks, bool isCompletedNewValue) {
+    for (var task in tasks) {
+      updateTask(task, isCompletedNewValue);
+    }
+    return Future.value(true);
+  }
 }
diff --git a/test/ui/components/widgets/task/taskslist/tasks_viewmodel_test.dart b/test/ui/components/widgets/task/taskslist/tasks_viewmodel_test.dart
index f629897..cf525ec 100644
--- a/test/ui/components/widgets/task/taskslist/tasks_viewmodel_test.dart
+++ b/test/ui/components/widgets/task/taskslist/tasks_viewmodel_test.dart
@@ -1,10 +1,8 @@
 import 'package:flutter_test/flutter_test.dart';
 import 'package:todoapp/data/model/task.dart';
-import 'package:todoapp/domain/format_task_list_message_use_case.dart';
-import 'package:todoapp/domain/progress_counter_use_case.dart';
-import 'package:todoapp/domain/should_show_share_button_use_case.dart';
-import 'package:todoapp/domain/tasks_comparator_use_case.dart';
-import 'package:todoapp/domain/tasks_sorter_use_case.dart';
+import 'package:todoapp/data/model/tasks_complete_status.dart';
+import 'package:todoapp/domain/task_list_sort_helper.dart';
+import 'package:todoapp/domain/task_list_summary_helper.dart';
 import 'package:todoapp/ui/components/widgets/task/taskslist/tasks_screen_state.dart';
 import 'package:todoapp/ui/components/widgets/task/taskslist/tasks_viewmodel.dart';
 
@@ -19,12 +17,9 @@ void main() {
     fakeRepository = FakeRepository(tasks: [], checklists: []);
     viewModel = TasksViewModel(
       repository: fakeRepository,
-      progressCounterUseCase: ProgressCounterUseCaseImpl(),
-      tasksSorterUseCase: TasksSorterUseCaseImpl(),
+      taskListSummaryHelper: TaskListSummaryHelperImpl(),
       shareMessageHandler: FakeShareMessageHandler(),
-      tasksComparatorUseCase: TasksComparatorUseCaseImpl(),
-      formatTaskListMessageUseCase: FormatTaskListMessageUseCaseImpl(),
-      shouldShowShareButtonUseCase: ShouldShowShareButtonUseCaseImpl(),
+      taskListSortHelper: TaskListSortHelperImpl(),
     );
   });
 
@@ -69,6 +64,7 @@ void main() {
           showShareIcon: true,
           progress: 0,
           isLoading: false,
+          tasksCompleteStatus: TasksCompleteStatus.checkAll,
         ),
       );
     },
@@ -108,6 +104,7 @@ void main() {
           showShareIcon: false,
           progress: 1,
           isLoading: false,
+          tasksCompleteStatus: TasksCompleteStatus.uncheckAll,
         ),
       );
     },
@@ -137,6 +134,7 @@ void main() {
           tasks: [],
           showShareIcon: false,
           isLoading: false,
+          tasksCompleteStatus: null,
         ),
       );
     },