import RxSwift

class SchedulingFormviewmodel: Baseviewmodel {

    let places = Variable<[String]>([])

    var formIsValid: Observable<Bool>!

    override init() {
        super.init()
        places.value = ["LUGAR 1","LUGAR 2","LUGAR 3"]

        formIsValid = Observable.combineLatest(UserSession.currenctScheduling.dateSignal.asObservable(),UserSession.currenctScheduling.carSignal.asObservable(),UserSession.currenctScheduling.locationSignal.asObservable(),UserSession.currenctScheduling.servicesSignal.asObservable())
        { (date: Date?,car: Car?,location: String?,services: [Service]?) in
            print("DATE: \(date),CAR: \(car),LOCATION: \(location),SERVICES:\(services)")
            guard let servicesArray = services else { return false }
            let valid = date != nil && car != nil && location != nil && servicesArray.count > 0
            return valid
        }
    }
}

然后我让我的测试类有一个方法,只测试信号是否改变.我尝试了各种方法,但最终都没有真正获得真正的价值.在测试运行后,observable只发出一个真实的信号.

我的测试类是这样设置的

import XCTest

import RxSwift
import RxTest

@testable import Automobi

class SchedulingUnitTests: XCTestCase {

    var viewmodel: SchedulingFormviewmodel!
    var disposeBag: DisposeBag!
    var scheduler: TestScheduler!

    override func setUp() {
        super.setUp()
        viewmodel = SchedulingFormviewmodel()
        UserSession.clearScheduling()
        disposeBag = DisposeBag()
        scheduler = TestScheduler(initialClock: 0) 
    }
}

我试过TestScheduler

func testFormValidation() {
    UserSession.currenctScheduling.dateSignal.value = Date()
    UserSession.currenctScheduling.carSignal.value = Car()
    UserSession.currenctScheduling.servicesSignal.value = [Service(),Service()]

    let location = scheduler.createHotObservable([
        next(100,"TEST")
    ])

    location.subscribe(onNext: { (text) in
        print("LOCATION: \(text)")
        UserSession.currenctScheduling.locationSignal.value = text
    }).addDisposableTo(disposeBag)


    let results = scheduler.createObserver(Bool.self)

    scheduler.scheduleAt(0) { 
        self.viewmodel.formIsValid.subscribe(results).addDisposableTo(self.disposeBag)
    }

    let expected = [
        next(100,true)
    ]

    scheduler.start()

    XCTAssertEqual(results.events,expected)
}

也

func testFormValidation() {
    UserSession.currenctScheduling.dateSignal.value = Date()
    UserSession.currenctScheduling.carSignal.value = Car()
    UserSession.currenctScheduling.servicesSignal.value = [Service(),"TEST"),next(150,"TEST 2"),next(200,"TEST 3")
        ])

    location.subscribe(onNext: { (text) in
        print("LOCATION: \(text)")
        UserSession.currenctScheduling.locationSignal.value = text
    }).addDisposableTo(disposeBag)


    var results = [Bool]()
    viewmodel.formIsValid.subscribe(onNext: { (value) in
        results.append(value)
    }).addDisposableTo(disposeBag)

    let expected = [true,true,true]

    scheduler.start()

    XCTAssertEqual(results,expected)
}

我尝试过将formIsValid绑定到Variable并在最后验证其值.

func testFormValidation() {
        UserSession.currenctScheduling.dateSignal.value = Date()
        UserSession.currenctScheduling.carSignal.value = Car()
        UserSession.currenctScheduling.locationSignal.value = "TESTE"
        UserSession.currenctScheduling.servicesSignal.value = [Service(),Service()]

        sleep(5)

        XCTAssertTrue(viewmodel.formIsValid.value)
}

但我从未得到预期的结果.在所有测试失败并且代码返回执行后,我确实得到了一个真实的信号.此外,在运行应用程序时,代码按预期执行,我只需要在测试中捕获它.有任何想法吗？！