ykpoh

import XCTest

class LaunchResponseTests: XCTestCase {

    override func setUpWithError() throws {
        // Put setup code here. This method is called before the invocation of each test method in the class.
    }

    override func tearDownWithError() throws {
        // Put teardown code here. This method is called after the invocation of each test method in the class.

ykpoh

import XCTest
@testable import SpaceXLaunch // 1

class LaunchResponseTests: XCTestCase, DecodableTestCase { // 2
    var sut: LaunchResponse! // 3
    
    override func setUpWithError() throws {
        // Put setup code here. This method is called before the invocation of each test method in the class.
        try super.setUpWithError()
        try! givenSUTFromJSON() // 4

ykpoh

import Foundation
import XCTest

protocol DecodableTestCase: class {
    associatedtype T: Decodable
    var sut: T! { get set }
}
extension DecodableTestCase {
    func givenSUTFromJSON(fileName: String = "\(T.self)") throws {
        let decoder = JSONDecoder()

ykpoh

import Foundation
import XCTest

extension Data {
    public static func fromJSON(fileName: String) throws -> Data {
        let bundle = Bundle(for: TestBundleClass.self)
        let url = try XCTUnwrap(bundle.url(forResource: fileName, withExtension: "json"))
        return try Data(contentsOf: url)
    }
}

ykpoh

import XCTest
@testable import SpaceXLaunch

class LaunchTests: XCTestCase {
    var sut: Launch!
    
    override func setUpWithError() throws {
        // Put setup code here. This method is called before the invocation of each test method in the class.
        try super.setUpWithError()
        try givenSUTFromJSON()

ykpoh

import Foundation
@testable import SpaceXLaunch
import Alamofire // 1

class MockDataRequest: DataRequestProtocol { // 2
    // 3
    static var statusCode: Int = 200
    static var data: Data?
    
    var dataResponse = AFDataResponse<Any>(

ykpoh

@testable import SpaceXLaunch
import Alamofire

enum MockAPIServiceError: Error {
    case permissionDenied
}

class MockAPIService: APIServiceProtocol { // 1
    enum Status {
        case success

ykpoh

import XCTest
@testable import SpaceXLaunch
import Alamofire

class APIServiceTests: XCTestCase {
    // 1
    var mockSessionManager: MockSessionManager!
    var mockDataRequest: MockDataRequest!
    var mockBaseUrlString: String!
    var sut: APIService!

ykpoh

import XCTest
@testable import SpaceXLaunch

class LaunchListTableViewCellViewModelTests: XCTestCase {
    // 1
    var sut: LaunchListTableViewCellViewModel!
    var cell: LaunchListTableViewCell!

    override func setUpWithError() throws {
        // Put setup code here. This method is called before the invocation of each test method in the class.

ykpoh

import XCTest
@testable import SpaceXLaunch
import Alamofire
import RxSwift

class LaunchListViewModelTests: XCTestCase {
    var sut: LaunchListViewModel!
    var mockAPIService: MockAPIService!
    // 1
    var mockViewController: MockLaunchListViewController!