<process> --> Espresso :包不属于Espresso导致测试失败

Question

我有一个Android Espresso代码，它试图点击一个按钮，但它失败了一个安全错误。

这是Espresso命令：

Espresso.onData(Matchers.allOf(Matchers.is(Matchers.instanceOf(Preference.class)), withKey(PreferenceKey.pref_custom_server_base_url.toString()), withSummaryText(Configurations.DEFAULT_SERVER_URL))).check(matches(isCompletelyDisplayed()));

这是我收到的错误：

java.lang.SecurityException: Package xxx.xxx.test does not belong to 10095
at android.os.Parcel.readException(Parcel.java:2004)
at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:183)
at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:135)
at android.content.ContentProviderProxy.call(ContentProviderNative.java:651)
at android.provider.Settings$NameValueCache.getStringForUser(Settings.java:1924)
at android.provider.Settings$Global.getStringForUser(Settings.java:10362)
at android.provider.Settings$Global.getString(Settings.java:10351)
at android.provider.Settings$Global.getFloat(Settings.java:10695)
at android.support.test.espresso.base.DefaultFailureHandler.getGlobalSetting(DefaultFailureHandler.java:178)
at android.support.test.espresso.base.DefaultFailureHandler.getSetting(DefaultFailureHandler.java:154)
at android.support.test.espresso.base.DefaultFailureHandler.getTransitionAnimationScale(DefaultFailureHandler.java:124)
at android.support.test.espresso.base.DefaultFailureHandler.isAnimationAndTransitionDisabled(DefaultFailureHandler.java:112)
at android.support.test.espresso.base.DefaultFailureHandler.getUserFriendlyError(DefaultFailureHandler.java:69)
at android.support.test.espresso.base.DefaultFailureHandler.handle(DefaultFailureHandler.java:52)
at xxx.xxx.test.instruments.failure.ScreenshotFailureHandler.handle(ScreenshotFailureHandler.java:36)
at android.support.test.espresso.ViewInteraction.waitForAndHandleInteractionResults(ViewInteraction.java:312)
at android.support.test.espresso.ViewInteraction.desugaredPerform(ViewInteraction.java:167)
at android.support.test.espresso.ViewInteraction.perform(ViewInteraction.java:110)
at android.support.test.espresso.DataInteraction$DisplayDataMatcher$1.apply(DataInteraction.java:206)
at android.support.test.espresso.DataInteraction$DisplayDataMatcher$1.apply(DataInteraction.java:203)
at android.support.test.espresso.DataInteraction$DisplayDataMatcher.<init>(DataInteraction.java:223)
at android.support.test.espresso.DataInteraction$DisplayDataMatcher.<init>(DataInteraction.java:198)
at android.support.test.espresso.DataInteraction$DisplayDataMatcher.displayDataMatcher(DataInteraction.java:241)
at android.support.test.espresso.DataInteraction.makeTargetMatcher(DataInteraction.java:143)
at android.support.test.espresso.DataInteraction.check(DataInteraction.java:137)
at xxx.xxx.test.steps.ChangeServerUrlSteps.checkSettingsSaved(ChangeServerUrlSteps.java:112)
at xxx.xxx.test.steps.Prerequisites.serverConfigPrerequisites(Prerequisites.java:38)
at ✽.Given I am connected (features/001_login.feature:8)

你知道为什么会发生这种情况吗？谢谢!代码在Emulator和Cloud设备上运行时出现相同的错误。

Answer 1

我在这个堆栈溢出问题的答案中找到了这个问题的解决方案：java.lang.SecurityException: Permission Denial: getIntentSender() when using UiAutomation in a test

在指定数据库的位置时，请使用getTargetContext()而不是getContext()。

File dbFolder = InstrumentationRegistry.getInstrumentation().getTargetContext().getExternalCacheDir();

而不是

File dbFolder = InstrumentationRegistry.getInstrumentation().getContext().getExternalCacheDir();