我怎样才能在android studio中运行Jacoco进行代码覆盖

Question

我已经在android studio中调试了一下.我的app模块的gradle配置文件包含以下内容:

debug{
    testCoverageEnabled true
}

然后我在终端中运行以下命令:

gradlew createDebugCoverageReport

事实上我得到了一个报告,但应用程序也崩溃了一个只读错误,我似乎无法弄明白.我正在使用mac.这是堆栈跟踪:

 **java.io.FileNotFoundException: /jacoco.exec: open failed: EROFS (Read-only file system)**
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at libcore.io.IoBridge.open(IoBridge.java:416)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at java.io.FileOutputStream.<init>(FileOutputStream.java:88)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at org.jacoco.agent.rt.internal_932a715.output.FileOutput.openFile(FileOutput.java:67)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at org.jacoco.agent.rt.internal_932a715.output.FileOutput.startup(FileOutput.java:49)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at org.jacoco.agent.rt.internal_932a715.Agent.startup(Agent.java:122)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at org.jacoco.agent.rt.internal_932a715.Agent.getInstance(Agent.java:50)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at org.jacoco.agent.rt.internal_932a715.Offline.<clinit>(Offline.java:31)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at mypackage.org.duckduck.MainApplication.$jacocoInit(MainApplication.java)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at mypackage.org.duckduck.MainApplication.<clinit>(MainApplication.java)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at java.lang.Class.newInstanceImpl(Native Method)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at java.lang.Class.newInstance(Class.java:1319)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at android.app.Instrumentation.newApplication(Instrumentation.java:983)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at android.app.Instrumentation.newApplication(Instrumentation.java:968)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at android.app.LoadedApk.makeApplication(LoadedApk.java:499)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4480)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at android.app.ActivityThread.access$1300(ActivityThread.java:146)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1300)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at android.os.Handler.dispatchMessage(Handler.java:99)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at android.os.Looper.loop(Looper.java:137)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at android.app.ActivityThread.main(ActivityThread.java:5168)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at java.lang.reflect.Method.invokeNative(Native Method)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at java.lang.reflect.Method.invoke(Method.java:511)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:797)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:564)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at dalvik.system.NativeStart.main(Native Method)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? Caused by: libcore.io.ErrnoException: open failed: EROFS (Read-only file system)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at libcore.io.Posix.open(Native Method)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at libcore.io.BlockGuardOs.open(BlockGuardOs.java:110)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? at libcore.io.IoBridge.open(IoBridge.java:400)
03-01 00:04:56.871  19006-19006/mypackage.org.duckduck W/System.err? ... 24 more

Answer 1

我在 USB 设备上运行 jacoco 时遇到了同样的问题。使用 Genymotion 解决了这个问题。