Question

我在Xcode7.3 / iOS9.3上的UI测试中看到了大约1/10次

Test Case '-[WhatevUITests.RegistrationUITests testVerifyUnsupportedPhoneNumberAlert]' started.
    t =     0.00s     Start Test
    t =     0.00s     Set Up
    t =     0.01s         Launch me.jackpine.whatev-dev
    t =     0.11s             Terminate <XCUIApplicationProcess: 0x7ff91a712550 me.jackpine.whatev-dev (94280)>
    t =     1.14s             Assertion Failure: UI Testing Failure - Failure attempting to launch <XCUIApplicationImpl: 0x7ff91a49fae0 me.jackpine.whatev-dev at /Users/mkirk/src/jackpine/Whatev-iOS/build/Whatev/Build/Products/Debug-iphonesimulator/Whatev Dev.app>, nil token for current process reference <XCUIApplicationProcess: 0x7ff91a624440 me.jackpine.whatev-dev (94333)>
/Users/mkirk/src/jackpine/Whatev-iOS/WhatevUITests/RegistrationUITests.swift:16: error: -[WhatevUITests.RegistrationUITests testVerifyUnsupportedPhoneNumberAlert] : UI Testing Failure - Failure attempting to launch <XCUIApplicationImpl: 0x7ff91a49fae0 me.jackpine.whatev-dev at /Users/mkirk/src/jackpine/Whatev-iOS/build/Whatev/Build/Products/Debug-iphonesimulator/Whatev Dev.app>, nil token for current process reference <XCUIApplicationProcess: 0x7ff91a624440 me.jackpine.whatev-dev (94333)>
    t =     1.15s             Tear Down

我不确定这意味着什么。通常我可以重新运行测试，它会毫无问题地完成。

Answer 1

我在Xcode 8.3.2和iOS 10.3 Simulator中遇到过这个问题。将Mac OS更新到Sierra后，所有测试都开始失败。

我们会在以下位置看到上述异常：

XCUIApplication().launch()

并且第一次测试尝试访问XCUIApplication（）时崩溃。

修复是将XCUIApplication（）。launch（）调用移动到setUp（）函数。

<强>背景

在我们的例子中，问题是多线程。我们想确保在应用程序启动之前执行了其他一些代码。该代码运行异步并在返回后启动应用程序。该修复程序确保首先在主线程上启动应用程序。现在一切正常。

间歇性＆＃34;尝试启动失败＆＃34;在ios UITest中

1 个答案: