android - Android 模拟器上的 Mockito

Question

Android 新手在这里尝试在 Android 中使用我最喜欢的 Java 测试工具。我正在尝试使用 Mockito 1.9.5，如以下博客文章中所述，但无法让测试在我的模拟器上运行(我目前没有可用于测试的物理设备)。

Mockit-Android 教程:http://www.paulbutcher.com/2012/05/mockito-on-android-step-by-step/

我能够毫无问题地执行所有正常的 Junit 测试，但是我利用 Mockito 进行的任何测试都收到以下信息:

Can't open dex cache '/data/dalvik-cache/data@data@com.trendium.peg@cache@Generated-621101.jar@classes.dex': No such file or directory
Unable to open or create cache for /data/data/com.trendium.peg/cache/Generated-621101.jar (/data/dalvik-cache/data@data@com.trendium.peg@cache@Generated-621101.jar@classes.dex)
failed: testStartable(com.trendium.peg.services.RatingServiceTest)
java.lang.AssertionError: java.lang.ClassNotFoundException: RemoteRestTask_Proxy in loader dalvik.system.DexClassLoader@40a4b610

我在谷歌上搜索了很多这些异常，重建了我的模拟器，重建了项目，以及许多其他不同的想法，但没有任何运气来解决这个问题。

旁注:我的目标是 SDK 11 及更高版本，怀疑这是否有影响但值得注意。我现有的不利用 Mockito 的单元测试在同一测试运行中毫无问题地运行(28/28 次运行，7 次失败)。

对 LogCat 的进一步分析表明 mockito cglib 显然不在类路径中，但是我现在不确定下一步:

03-25 09:10:42.990: W/dalvikvm(411): Unable to resolve superclass of Lorg/mockito/cglib/transform/AbstractProcessTask; (637)
03-25 09:10:43.000: W/dalvikvm(411): Link of class 'Lorg/mockito/cglib/transform/AbstractProcessTask;' failed
03-25 09:10:43.029: D/dalvikvm(411): GC_CONCURRENT freed 618K, 9% free 9226K/10055K, paused 4ms+6ms
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411): Cannot load class. Make sure it is in your apk. Class name: 'org.mockito.cglib.transform.AbstractProcessTask'. Message: org.mockito.cglib.transform.AbstractProcessTask
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411): java.lang.ClassNotFoundException: org.mockito.cglib.transform.AbstractProcessTask
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at java.lang.Class.classForName(Native Method)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at java.lang.Class.forName(Class.java:234)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.test.ClassPathPackageInfoSource.createPackageInfo(ClassPathPackageInfoSource.java:89)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.test.ClassPathPackageInfoSource.access$000(ClassPathPackageInfoSource.java:40)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.test.ClassPathPackageInfoSource$1.load(ClassPathPackageInfoSource.java:51)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.test.ClassPathPackageInfoSource$1.load(ClassPathPackageInfoSource.java:48)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.test.SimpleCache.get(SimpleCache.java:31)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.test.ClassPathPackageInfoSource.getPackageInfo(ClassPathPackageInfoSource.java:73)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.test.ClassPathPackageInfo.getSubpackages(ClassPathPackageInfo.java:48)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.test.ClassPathPackageInfo.addTopLevelClassesTo(ClassPathPackageInfo.java:61)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.test.ClassPathPackageInfo.getTopLevelClassesRecursive(ClassPathPackageInfo.java:55)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.test.suitebuilder.TestGrouping.testCaseClassesInPackage(TestGrouping.java:156)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.test.suitebuilder.TestGrouping.addPackagesRecursive(TestGrouping.java:117)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.test.suitebuilder.TestSuiteBuilder.includePackages(TestSuiteBuilder.java:102)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.test.InstrumentationTestRunner.onCreate(InstrumentationTestRunner.java:356)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.app.ActivityThread.handleBindApplication(ActivityThread.java:3550)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.app.ActivityThread.access$2200(ActivityThread.java:123)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1031)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.os.Handler.dispatchMessage(Handler.java:99)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.os.Looper.loop(Looper.java:126)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at android.app.ActivityThread.main(ActivityThread.java:3997)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at java.lang.reflect.Method.invokeNative(Native Method)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at java.lang.reflect.Method.invoke(Method.java:491)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at dalvik.system.NativeStart.main(Native Method)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411): Caused by: java.lang.NoClassDefFoundError: org.mockito.cglib.transform.AbstractProcessTask
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  ... 26 more
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411): Caused by: java.lang.ClassNotFoundException: org.mockito.cglib.transform.AbstractProcessTask in loader dalvik.system.PathClassLoader[/system/framework/android.test.runner.jar:/data/app/com.example.mine.test-1.apk:/data/app/com.example.mine-1.apk]
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:251)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at java.lang.ClassLoader.loadClass(ClassLoader.java:548)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  at java.lang.ClassLoader.loadClass(ClassLoader.java:508)
03-25 09:10:43.040: W/ClassPathPackageInfoSource(411):  ... 26 more

根据此错误消息，我查看了 Mockito 源代码并注意到它使用的是 Ant 的任务。但是，我不认为 Ant 是 Mockito 的依赖项......

https://fisheye2.atlassian.com/browse/mockito/trunk/cglib-and-asm/src/org/mockito/cglib/transform/AbstractProcessTask.java?r=1430

进一步调试，我再次被以下内容阻止:

03-25 15:07:01.726: I/dalvikvm(703): Failed resolving Lorg/junit/internal/AssumptionViolatedException; interface 693 'Lorg/hamcrest/SelfDescribing;'
03-25 15:07:01.726: W/dalvikvm(703): Link of class 'Lorg/junit/internal/AssumptionViolatedException;' failed
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703): Cannot load class. Make sure it is in your apk. Class name: 'org.junit.internal.AssumptionViolatedException'. Message: org.junit.internal.AssumptionViolatedException
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703): java.lang.ClassNotFoundException: org.junit.internal.AssumptionViolatedException
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at java.lang.Class.classForName(Native Method)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at java.lang.Class.forName(Class.java:234)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.test.ClassPathPackageInfoSource.createPackageInfo(ClassPathPackageInfoSource.java:89)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.test.ClassPathPackageInfoSource.access$000(ClassPathPackageInfoSource.java:40)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.test.ClassPathPackageInfoSource$1.load(ClassPathPackageInfoSource.java:51)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.test.ClassPathPackageInfoSource$1.load(ClassPathPackageInfoSource.java:48)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.test.SimpleCache.get(SimpleCache.java:31)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.test.ClassPathPackageInfoSource.getPackageInfo(ClassPathPackageInfoSource.java:73)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.test.ClassPathPackageInfo.getSubpackages(ClassPathPackageInfo.java:48)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.test.ClassPathPackageInfo.addTopLevelClassesTo(ClassPathPackageInfo.java:61)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.test.ClassPathPackageInfo.getTopLevelClassesRecursive(ClassPathPackageInfo.java:55)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.test.suitebuilder.TestGrouping.testCaseClassesInPackage(TestGrouping.java:156)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.test.suitebuilder.TestGrouping.addPackagesRecursive(TestGrouping.java:117)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.test.suitebuilder.TestSuiteBuilder.includePackages(TestSuiteBuilder.java:102)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.test.InstrumentationTestRunner.onCreate(InstrumentationTestRunner.java:356)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.app.ActivityThread.handleBindApplication(ActivityThread.java:3550)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.app.ActivityThread.access$2200(ActivityThread.java:123)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1031)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.os.Handler.dispatchMessage(Handler.java:99)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.os.Looper.loop(Looper.java:126)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at android.app.ActivityThread.main(ActivityThread.java:3997)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at java.lang.reflect.Method.invokeNative(Native Method)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at java.lang.reflect.Method.invoke(Method.java:491)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:841)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:599)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  at dalvik.system.NativeStart.main(Native Method)
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703): Caused by: java.lang.NoClassDefFoundError: org.junit.internal.AssumptionViolatedException
03-25 15:07:01.746: W/ClassPathPackageInfoSource(703):  ... 26 more

这表明 hamcrst-core jar 不在类路径中，但我已将其正确添加到测试项目的 libs 目录中:

https://github.com/junit-team/junit/blob/r4.11/src/main/java/org/junit/internal/AssumptionViolatedException.java

请注意，关于 Mockito 1.9.5，我正在为 Junit-4.11 使用正确的(根据我的理解) jar 。 https://code.google.com/p/mockito/wiki/DeclaringMockitoDependency

Answer 1

您必须确保 Mockito 的 JAR 是您的 APK 依赖项的一部分。

如果您使用的是 Intellij，请打开项目设置和 Module->Dependencies，并将 Mockito 添加为依赖项的一部分。

如果您正在使用混淆，您还必须确保它不会从您构建的 apk 中混淆 mockito 的类。