Implemented the TodoFetchDescriptor+Inits extension in the app target.

2026-02-10 09:51:24 +01:00
parent 50455ffe8f
commit 1169d8c622
2 changed files with 184 additions and 0 deletions
@@ -0,0 +1,130 @@
+import Foundation
+import SwiftData
+import Testing
+
+@testable import Todos
+
+@Suite("FetchDescriptor<Todo> extension tests")
+struct TodoFetchDescriptorTests {
+
+    // MARK: Initialization tests
+    
+    @Test(
+        "initializes with group when empty tasks",
+        arguments: TodoGroup.allCases
+    )
+    @MainActor
+    func initializationWhenEmptyTasks(for group: TodoGroup) throws {
+        // GIVEN
+        let container = try modelContainer
+        let context = container.mainContext
+        
+        // WHEN
+        let descriptor = FetchDescriptor<Todo>(group: .today)
+        let results = try context.fetch(descriptor)
+        
+        // THEN
+        #expect(results.isEmpty)
+    }
+    
+    @Test(
+        "initializes with group when filled tasks",
+        arguments: TodoGroup.allCases
+    )
+    @MainActor
+    func initializationWhenFilledTasks(for group: TodoGroup) throws {
+        // GIVEN
+        let container = try modelContainer
+        let context = container.mainContext
+        
+        insert(into: context)
+        
+        // WHEN
+        let descriptor = FetchDescriptor<Todo>(group: group)
+        let results = try context.fetch(descriptor)
+        
+        // THEN
+        #expect(results.count == 2)
+        
+        switch group {
+        case .completed:
+            #expect(results[0].title == "Completed task #2")
+            #expect(results[1].title == "Completed task #1")
+        case .overdue:
+            #expect(results[0].title == "Overdue task #2")
+            #expect(results[1].title == "Overdue task #1")
+        case .today:
+            #expect(results[0].title == "Today task #1")
+            #expect(results[1].title == "Today task #2")
+        case .upcoming:
+            #expect(results[0].title == "Upcoming task #1")
+            #expect(results[1].title == "Upcoming task #2")
+        }
+    }
+
+}
+
+// MARK: - Helpers
+
+private extension TodoFetchDescriptorTests {
+
+    // MARK: Computed
+
+    var modelContainer: ModelContainer {
+        get throws {
+            try ModelContainer(
+                for: Todo.self,
+                configurations: .init(isStoredInMemoryOnly: true)
+            )
+        }
+    }
+
+    // MARK: Functions
+
+    func insert(
+        into context: ModelContext,
+        calendar: Calendar = .current
+    ) {
+        let tasks: [Todo] = [
+            .init(
+                title: "Today task #1",
+                due: .now
+            ),
+            .init(
+                title: "Today task #2",
+                due: .now
+            ),
+            .init(
+                title: "Upcoming task #1",
+                due: calendar.date(byAdding: .day, value: 1, to: .now) ?? .now
+            ),
+            .init(
+                title: "Upcoming task #2",
+                due: calendar.date(byAdding: .day, value: 1, to: .now) ?? .now
+            ),
+            .init(
+                title: "Overdue task #1",
+                due: calendar.date(byAdding: .day, value: -1, to: .now) ?? .now
+            ),
+            .init(
+                title: "Overdue task #2",
+                due: calendar.date(byAdding: .day, value: -1, to: .now) ?? .now
+            ),
+            .init(
+                title: "Completed task #1",
+                due: calendar.date(byAdding: .day, value: -1, to: .now) ?? .now,
+                completed: .now
+            ),
+            .init(
+                title: "Completed task #2",
+                due: calendar.date(byAdding: .day, value: 1, to: .now) ?? .now,
+                completed: .now
+            )
+        ]
+        
+        for task in tasks {
+            context.insert(task)
+        }
+    }
+
+}