Implemented the MockURLProtocol class in the Foundation library.

Libraries/Foundation/Kit/Sources/Classes/MockURLProtocol.swift

@@ -0,0 +1,88 @@
+//
+//  MockURLProtocol.swift
+//  ReviewsFoundationKit
+//
+//  Created by Javier Cicchelli on 17/03/2024.
+//  Copyright © 2024 Röck+Cöde VoF. All rights reserved.
+//
+
+import Foundation
+
+public class MockURLProtocol: URLProtocol {
+    
+    // MARK: Properties
+    public static var response: Response?
+    
+    // MARK: Functions
+    public override class func canInit(with task: URLSessionTask) -> Bool {
+        true
+    }
+    
+    public override class func canInit(with request: URLRequest) -> Bool {
+        true
+    }
+    
+    public override class func canonicalRequest(for request: URLRequest) -> URLRequest {
+        request
+    }
+    
+    public override func startLoading() {
+        guard
+            let url = request.url,
+            let response = Self.response
+        else {
+            client?.urlProtocolDidFinishLoading(self)
+            return
+        }
+        
+        if let data = try? response.data {
+            client?.urlProtocol(self, didLoad: data)
+        }
+
+        if let httpResponse = HTTPURLResponse(
+            url: url,
+            statusCode: response.statusCode,
+            httpVersion: nil,
+            headerFields: nil
+        ) {
+            client?.urlProtocol(
+                self,
+                didReceive: httpResponse,
+                cacheStoragePolicy: .allowedInMemoryOnly
+            )
+        }
+        
+        client?.urlProtocolDidFinishLoading(self)
+    }
+    
+    public override func stopLoading() {}
+    
+}
+
+// MARK: - Structs
+
+extension MockURLProtocol {
+    public struct Response {
+        
+        // MARK: Constants
+        public let statusCode: Int
+        public let object: any Encodable
+        
+        // MARK: Initialisers
+        public init(
+            statusCode: Int,
+            object: any Codable
+        ) {
+            self.statusCode = statusCode
+            self.object = object
+        }
+        
+        // MARK: Computed
+        var data: Data? {
+            get throws {
+                try JSONEncoder().encode(object)
+            }
+        }
+
+    }
+}