[CM-793] Added unit test case for concrete types

Sources/YCatalogViewer/ClassificationDataSource.swift

@@ -10,15 +10,14 @@ import UIKit
 public final class ClassificationDataSource: NSObject, CatalogDataSource {
     /// The type of cell catalogDataSource supports
     public typealias Cell = UITableViewCell
-    
     /// Represents the cell type
     public static var cell: Cell.Type { UITableViewCell.self }
     /// Identifier to identify the cell
     public static var cellIdentifier: String { "ClassificationTableCell" }
     /// Represents the title of catalog
-    public var navigationTitle: String?
+    public let navigationTitle: String?
     /// Represents categories in the catalog
-    public var categories: [Classification]
+    public let categories: [Classification]
     
     ///  Used to initialize the  `ClassificationDataSource`
     /// - Parameters:
@@ -45,7 +44,7 @@ public final class ClassificationDataSource: NSObject, CatalogDataSource {
             withIdentifier: ClassificationDataSource.cellIdentifier,
             for: indexPath
         )
-        let category = categories[indexPath.row]
+        let category = category(for: indexPath)
 
         cell.textLabel?.text = category.name
         cell.accessoryType = .disclosureIndicator

Sources/YCatalogViewer/Models/CatalogCategory.swift

@@ -8,6 +8,10 @@ import Foundation
 
 /// Represents catalog category
 public struct CatalogCategory: Classification {
+    /// Name of the catalog category
+    public let name: String
+    /// Represents the subcategories of the given category
+    public let subcategories: [Classification]
     /// Represents destination of the catalog category
     public var destination: Destination {
         SubcategoryDetailDestination(
@@ -15,9 +19,4 @@ public struct CatalogCategory: Classification {
             subcategories: subcategories
         )
     }
-    /// Name of the catalog category
-    public var name: String
-    /// Represents the subcategories of the given category
-    public var subcategories: [Classification]
-    
 }

Sources/YCatalogViewer/Models/CatalogDetailDestination.swift

@@ -1,5 +1,5 @@
 //
-//  CatalogDestination.swift
+//  CatalogDetailDestination.swift
 //
 //  Created by Y Media Labs on 05/09/22.
 //
@@ -8,12 +8,12 @@ import UIKit
 
 /// Represents the CatalogDetailDestination
 public struct CatalogDetailDestination<View: ContentView>: Destination {
-    ///  NavigationTitle of the destination screen
-    public var navigationTitle: String?
-    /// Represents the model of catalog destination VC
-    public var models: [View.Model]
     /// Represents the presentation style of catalog destination VC
     public var presentationStyle: Presentation = .detail
+    ///  NavigationTitle of the destination screen
+    public let navigationTitle: String?
+    /// Represents the model of catalog destination VC
+    public let models: [View.Model]
     // TODO: Update after catalogFactory Ticket
     public var controller = UIViewController()
 }

Sources/YCatalogViewer/Models/SubcategoryDetailDestination.swift

@@ -1,5 +1,5 @@
 //
-//  SubcategoryDestination.swift
+//  SubcategoryDetailDestination.swift
 //
 //  Created by Y Media Labs on 05/09/22.
 //
@@ -8,13 +8,12 @@ import UIKit
 
 ///  Represents the sub category destination
 public struct SubcategoryDetailDestination: Destination {
-    /// NavigationTitle for subcategory VC
-    public var navigationTitle: String?
-    
-    ///  Represents subcateogries of the category
-    public var subcategories: [Classification]
     /// Represents the presentation style of subcategory
     public var presentationStyle: Presentation = .detail
+    /// NavigationTitle for subcategory VC
+    public let navigationTitle: String?
+    ///  Represents subcategories of the category
+    public let subcategories: [Classification]
     /// Represents the sub category view controller
     // TODO: Update after catalogFactory Ticket
     public var controller = UIViewController()

Sources/YCatalogViewer/Protocols/CatalogDataSource.swift

@@ -10,10 +10,10 @@ import UIKit
 public protocol CatalogDataSource: UITableViewDataSource {
     /// The type of cell catalogDataSource supports
     associatedtype Cell: UITableViewCell
-    /// Identifier to identify the cell
-    static var cellIdentifier: String { get }
     /// Represents the cell type
     static var cell: Cell.Type { get }
+    /// Identifier to identify the cell
+    static var cellIdentifier: String { get }
     /// Represents the title of catalog
     var navigationTitle: String? { get }
     /// Represents categories in the catalog

Tests/YCatalogViewerTests/CatalogCategoryTest.swift

@@ -0,0 +1,107 @@
+//
+// catalogCategoryTest.swift
+//
+// Created by Y Media Labs on 08/09/22.
+//
+import XCTest
+@testable import YCatalogViewer
+final class CatalogCategoryTest: XCTestCase {
+    var controller = UIViewController()
+    func testCatalogCategory() {
+        let category = CatalogCategory(
+            name: "category",
+            subcategories:
+                [
+                    Demo(
+                        destination: Demodestination(
+                            present: .detail,
+                            title: "color",
+                            controller: controller
+                        )
+                    )
+                ]
+        )
+        XCTAssertEqual("category", category.destination.navigationTitle)
+        XCTAssertEqual(.detail, category.destination.presentationStyle)
+        XCTAssert(type(of: controller) == type(of: category.destinationController))
+    }
+    
+    func testSubcategoryDestination() {
+        let subcategory = SubcategoryDetailDestination(
+            presentationStyle: .detail,
+            navigationTitle: "title",
+            subcategories:
+                [
+                    Demo(
+                        destination: Demodestination(
+                            present: .detail,
+                            title: "color",
+                            controller: controller
+                        )
+                    )
+                ],
+            controller:
+                controller
+        )
+        XCTAssertEqual("title", subcategory.navigationTitle)
+        XCTAssertEqual(.detail, subcategory.subcategories[0].presentationStyle)
+    }
+    
+    func testCatalogDestination() {
+        let catalogDestination = CatalogDetailDestination<DemoView>(
+            presentationStyle: .detail,
+            navigationTitle: "title",
+            models: [DemoModel()],
+            controller: controller
+        )
+        XCTAssertEqual(controller, catalogDestination.controller)
+        XCTAssertEqual(.detail, catalogDestination.presentationStyle)
+    }
+    
+    func testClassificationDataSource() {
+        let tableview = UITableView()
+        let classificationDataSource = ClassificationDataSource(navigationTitle: "title", classification:
+                                                                    [
+                                                                        Demo(
+                                                                            destination: Demodestination(
+                                                                                present: .detail,
+                                                                                title: "color",
+                                                                                controller: controller
+                                                                            )
+                                                                        )
+                                                                    ])
+        XCTAssertEqual(
+            1,
+            classificationDataSource.tableView(
+            UITableView(),
+            numberOfRowsInSection: classificationDataSource.categories.count
+            )
+        )
+        
+        tableview.register(
+            ClassificationDataSource.cell,
+            forCellReuseIdentifier: ClassificationDataSource.cellIdentifier
+        )
+        let tableCell = classificationDataSource.tableView(tableview, cellForRowAt: [0, 0])
+        XCTAssertNotNil(tableCell)
+    }
+}
+
+class Demo: Classification {
+    var name: String = ""
+    var destination: Destination
+    public init(destination: Destination) {
+        self.destination = destination
+    }
+}
+
+class Demodestination: Destination {
+    var presentationStyle: Presentation
+    var navigationTitle: String?
+    var controller: UIViewController
+    public init(present: Presentation, title: String, controller: UIViewController) {
+        presentationStyle = present
+        navigationTitle = title
+        self.controller = controller
+    }
+}