Adds support for asny await

Author: lightsprint09

Source/NetworkService+Async.swift

@@ -0,0 +1,24 @@
+//
+//  File.swift
+//  
+//
+//  Created by Lukas Schmidt on 19.12.21.
+//
+
+import Foundation
+
+@available(watchOS 6.0, *)
+@available(macOS 10.15.0, *)
+@available(iOS 13.0.0, *)
+public extension NetworkService {
+
+    @discardableResult
+    func request<Result>(_ resource: Resource<Result>) async throws -> (Result, HTTPURLResponse) {
+        return try await withCheckedThrowingContinuation({ coninuation in
+            request(resource: resource, onCompletionWithResponse: {
+                coninuation.resume(with: $0)
+            })
+        })
+    }
+
+}

Tests/NetworkServiceTest.swift

@@ -238,4 +238,38 @@ class NetworkServiceTest: XCTestCase {
         }
         XCTAssertEqual(networkAccess.request?.url?.absoluteString, "https://bahn.de/train")
     }
+
+    @available(watchOS 6.0, *)
+    @available(macOS 10.15.0, *)
+    @available(iOS 13.0.0, *)
+    func testGIVEN_aRequest_WHEN_requestWithAsyncResultAndResponse_THEN_ShouldRespond() async throws {
+        // GIVEN
+        networkAccess.changeMock(data: Train.validJSONData, response: .defaultMock, error: nil)
+
+        //When
+        let (result, response) = try await networkService.request(resource)
+
+
+        //Then
+        XCTAssertEqual(result.name, self.trainName)
+        XCTAssertEqual(response, .defaultMock)
+        XCTAssertEqual(networkAccess.request?.url?.absoluteString, "https://bahn.de/train")
+    }
+
+    @available(watchOS 6.0, *)
+    @available(macOS 10.15.0, *)
+    @available(iOS 13.0.0, *)
+    func testGIVEN_aRequest_WHEN_requestWithAsyncResultAndResponse_THEN_ShouldThwo() async {
+        // GIVEN
+        let error = NSError(domain: "", code: 0, userInfo: nil)
+        networkAccess.changeMock(data: nil, response: nil, error: error)
+
+        //When
+        do {
+            try await networkService.request(resource)
+            XCTFail("Schould throw")
+        } catch let error {
+            XCTAssertTrue(error is NetworkError)
+        }
+    }
 }