UnitTests/Tests/Enumerations/TodoGroupTests.swift

@@ -3,6 +3,7 @@ import Testing
 
 @testable import Todos
 
+@MainActor
 @Suite("TodoGroup enumeration tests")
 struct TodoGroupTests {
 
@@ -11,7 +12,7 @@ struct TodoGroupTests {
     @Test(
         "canShowCompleted returns correct values",
         arguments: zip(
-            TodoGroup.allCases,
+            [TodoGroup.today, .upcoming, .overdue, .completed],
             [true, true, true, false]
         )
     )
@@ -30,7 +31,7 @@ struct TodoGroupTests {
     @Test(
         "canReorder returns correct values",
         arguments: zip(
-            TodoGroup.allCases,
+            [TodoGroup.today, .upcoming, .overdue, .completed],
             [true, true, true, false]
         )
     )
@@ -49,7 +50,7 @@ struct TodoGroupTests {
     @Test(
         "group color match expected values",
         arguments: zip(
-            TodoGroup.allCases,
+            [TodoGroup.today, .upcoming, .overdue, .completed],
             [Color.blue, .green, .red, .gray]
         )
     )
@@ -68,7 +69,7 @@ struct TodoGroupTests {
     @Test(
         "group icon names match expected values",
         arguments: zip(
-            TodoGroup.allCases,
+            [TodoGroup.today, .upcoming, .overdue, .completed],
             ["calendar.badge.clock", "calendar", "calendar.badge.exclamationmark", "checkmark.circle.fill"]
         )
     )
@@ -87,7 +88,7 @@ struct TodoGroupTests {
     @Test(
         "group titles match expected values",
         arguments: zip(
-            TodoGroup.allCases,
+            [TodoGroup.today, .upcoming, .overdue, .completed],
             ["today", "upcoming", "overdue", "completed"]
         )
     )
@@ -123,7 +124,10 @@ struct TodoGroupTests {
 
     // MARK: Identifiable Tests
 
-    @Test("id returns an identity of a case", arguments: TodoGroup.allCases)
+    @Test(
+        "id returns an identity of a case",
+        arguments: [TodoGroup.today, .upcoming, .overdue, .completed]
+    )
     func id(for group: TodoGroup) {
         // GIVEN
         // WHEN

UnitTests/Tests/Extensions/TodoFetchDescriptor+InitsTests.swift

@@ -4,6 +4,7 @@ import Testing
 
 @testable import Todos
 
+@MainActor
 @Suite("TodoFetchDescriptor+Inits extension tests")
 struct TodoFetchDescriptor_InitsTests {
 
@@ -11,9 +12,8 @@ struct TodoFetchDescriptor_InitsTests {
 
     @Test(
         "initialization when empty tasks",
-        arguments: TodoGroup.allCases
+        arguments: [TodoGroup.today, .upcoming, .overdue, .completed]
     )
-    @MainActor
     func initializationWhenEmptyTasks(for group: TodoGroup) throws {
         // GIVEN
         let container = try modelContainer
@@ -32,9 +32,8 @@ struct TodoFetchDescriptor_InitsTests {
 
     @Test(
         "initialization with show completed disabled",
-        arguments: TodoGroup.allCases
+        arguments: [TodoGroup.today, .upcoming, .overdue, .completed]
     )
-    @MainActor
     func initializationWithNoShowCompleted(for group: TodoGroup) throws {
         // GIVEN
         let container = try modelContainer
@@ -70,9 +69,8 @@ struct TodoFetchDescriptor_InitsTests {
 
     @Test(
         "initialization with show completed enabled",
-        arguments: TodoGroup.allCases
+        arguments: [TodoGroup.today, .upcoming, .overdue, .completed]
     )
-    @MainActor
     func initializationWithShowCompleted(for group: TodoGroup) throws {
         // GIVEN
         let container = try modelContainer

UnitTests/Tests/View Models/ContentViewModelTests.swift

@@ -2,6 +2,7 @@ import Testing
 
 @testable import Todos
 
+@MainActor
 @Suite("ContentView view model tests")
 struct ContentViewModelTests {
 

UnitTests/Tests/View Models/NewTaskViewModelTests.swift

@@ -3,6 +3,7 @@ import Testing
 
 @testable import Todos
 
+@MainActor
 @Suite("NewTaskView view model tests")
 struct NewTaskViewModelTests {
 

UnitTests/Tests/View Models/TaskGroupListViewModelTests.swift

@@ -3,6 +3,7 @@ import Testing
 
 @testable import Todos
 
+@MainActor
 @Suite("TaskGroupListView view model tests")
 struct TaskGroupListViewModelTests {
 
@@ -32,7 +33,7 @@ struct TaskGroupListViewModelTests {
 
     @Test(
         "count returns zero when empty data",
-        arguments: TodoGroup.allCases
+        arguments: [TodoGroup.today, .upcoming, .overdue, .completed]
     )
     func countWhenEmptyData(for group: TodoGroup) throws {
         // GIVEN
@@ -47,7 +48,7 @@ struct TaskGroupListViewModelTests {
 
     @Test(
         "count returns correct count when filled data",
-        arguments: TodoGroup.allCases
+        arguments: [TodoGroup.today, .upcoming, .overdue, .completed]
     )
     func countWhenFilledData(for group: TodoGroup) throws {
         // GIVEN

UnitTests/Tests/View Models/TaskListViewModelTests.swift

@@ -3,6 +3,7 @@ import Testing
 
 @testable import Todos
 
+@MainActor
 @Suite("TaskList view model tests")
 struct TaskListViewModelTests {
 
@@ -10,7 +11,7 @@ struct TaskListViewModelTests {
 
     @Test(
         "properties are set correctly during initialization",
-        arguments: TodoGroup.allCases
+        arguments: [TodoGroup.today, .upcoming, .overdue, .completed]
     )
     func initialization(for group: TodoGroup) {
         // GIVEN
@@ -26,7 +27,7 @@ struct TaskListViewModelTests {
 
     @Test(
         "buttonCompleted returns correct values when showCompleted is true",
-        arguments: TodoGroup.allCases, [true, false]
+        arguments: [TodoGroup.today, .upcoming, .overdue, .completed], [true, false]
     )
     func buttonCompleted(
         for group: TodoGroup,
@@ -54,7 +55,7 @@ struct TaskListViewModelTests {
     @Test(
         "canShowCompleted returns correct value for each group",
         arguments: zip(
-            TodoGroup.allCases,
+            [TodoGroup.today, .upcoming, .overdue, .completed],
             [true, true, true, false]
         )
     )
@@ -74,7 +75,7 @@ struct TaskListViewModelTests {
 
     @Test(
         "navigationTitle returns correct view title for each group",
-        arguments: TodoGroup.allCases
+        arguments: [TodoGroup.today, .upcoming, .overdue, .completed]
     )
     func navigationTitle(for group: TodoGroup) {
         // GIVEN