✅ Add unit testing

Sources/Hermes/Hermes.swift

@@ -11,6 +11,7 @@ public enum NetworkError: Error {
     case serverError(String)
     case decodingError
     case invalidResponse
+    case notFound
 }
 
 extension NetworkError: LocalizedError {
@@ -19,18 +20,19 @@ extension NetworkError: LocalizedError {
             case .badRequest:
                 return NSLocalizedString("Unable to perform request", comment: "badRequestError")
             case .serverError(let errorMessage):
-                print(errorMessage)
                 return NSLocalizedString(errorMessage, comment: "serverError")
             case .decodingError:
                 return NSLocalizedString("Unable to decode successfully", comment: "decodingError")
             case .invalidResponse:
                 return NSLocalizedString("Invalid response", comment: "invalidResponse")
+            case .notFound:
+                return NSLocalizedString("Not Found", comment: "notFound")
         }
     }
 }
 
 public enum HTTPMethod {
-    case get([URLQueryItem])
+    case get([URLQueryItem]? = nil)
     case post(Data?)
     case put(Data?)
     case patch(Data?)
@@ -110,14 +112,25 @@ public struct Hermes {
         
         let (data, response) = try await session.data(for: request)
         
-        guard let _ = response as? HTTPURLResponse else {
+        guard let response = response as? HTTPURLResponse else {
             throw NetworkError.invalidResponse
         }
         
+        if response.statusCode != 200 {
+            switch response.statusCode {
+                case 404:
+                    throw NetworkError.notFound
+                case 500:
+                    throw NetworkError.serverError(response.description)
+                default:
+                    throw NetworkError.invalidResponse
+            }
+        }
+        
         guard let result = try? JSONDecoder().decode(resource.modelType, from: data) else {
             throw NetworkError.decodingError
         }
-        
+                
         return result
     }
 }