SwiftUnitTestWithGeneric

This project demonstrates a reusable Generic Network Layer for API communication and robust Unit Testing to ensure application reliability and maintainability. The application is built using Swift and emphasizes scalability, modularity, and testability.

Features

• Generic Network Layer:

  • Simplifies API requests with a reusable and type-safe architecture.
  • Supports GET, POST, and other HTTP methods.
  • Decodes responses using Swift's Codable protocol.
  • Error handling for network and parsing issues.

• Unit Testing:

  • Comprehensive test coverage for network requests and response handling.
  • Mocking capabilities to simulate API responses.
  • Ensures the reliability of the network layer and application logic.

Technologies Used

The project leverages the following technologies:

• Swift: Programming language.
• URLSession: For networking tasks.
• XCTest: For writing and running unit tests.

Architecture and Development Principles

The following architectural patterns and principles are applied:

• Generic Network Layer:

  • Built with generics to allow flexibility for different types of API requests.
  • Centralized NetworkManager to handle requests and responses.
  • Decoupled logic to facilitate testing and code reuse.

• Unit Testing:

  • Uses XCTest framework.
  • Includes mock data and stubs for API responses.
  • Verifies error handling, data decoding, and network calls independently.

Example Usage Network Manager:

class NetworkService<T: Decodable> {
    func fetchData(from url: URL, completion: @escaping (Result<T, Error>) -> Void) {
        // Code to make network request and process data
    }
}

Example of Writing a Unit Test:

import XCTest
@testable import ProjectName

class NetworkServiceTests: XCTestCase {
    func testFetchData() {
        // Test code
    }
}