Class

import Alamofire
import SwiftyJSON

public class ApiConnection{
    
    func getArticle(id:Int,callback: (String) -> Void) -> Void {
        
        let url = "http://0.0.0.0:8080/article/" + String(id)
        Alamofire.request(.GET, url)
            .responseJSON {
                response in
                guard let object = response.result.value else {
                    return
                }
                let json = JSON(object)
                let name = json["Name"].string!
                callback(name)
        }
    }
}

SwiftAlamofireSetting

<key>NSAppTransportSecurity</key>
	<dict>
		<key>NSAllowsArbitraryLoads</key>
		<true/>
	</dict>

test

import XCTest

@testable import app

let connection=app.ApiConnection()

class apiTests: XCTestCase {
    
    override func setUp() {
        super.setUp()
    }
    
    override func tearDown() {
        super.tearDown()
    }
   
    func testApi() {
        let connection=app.ApiConnection()
        let articleId = 1;
        let expectation = expectationWithDescription("scync")
        connection.getArticle(articleId){Name in
            print(Name)
            expectation.fulfill()
        }
        waitForExpectationsWithTimeout(1.0, handler: nil)
    }
   
    func testPerformanceExample() {
        self.measureBlock {
        }
    }

}