Robolectric tanks on my Application object that loads a JNI library

[Christopher Perry]

Here's the stack trace:

java.lang.UnsatisfiedLinkError: no cperryinc-jni in java.library.path
at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1758)
at java.lang.Runtime.loadLibrary0(Runtime.java:823)
at java.lang.System.loadLibrary(System.java:1045)
at
com.cperryinc.application.MoolaApplication.<clinit>(MoolaApplication.java:
24)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:169)
at
com.xtremelabs.robolectric.internal.ClassNameResolver.safeClassForName(ClassNameResolver.java:
36)
at
com.xtremelabs.robolectric.internal.ClassNameResolver.resolve(ClassNameResolver.java:
15)
at
com.xtremelabs.robolectric.ApplicationResolver.newApplicationInstance(ApplicationResolver.java:
71)
at
com.xtremelabs.robolectric.ApplicationResolver.resolveApplication(ApplicationResolver.java:
28)
at
com.xtremelabs.robolectric.RobolectricTestRunner.createApplication(RobolectricTestRunner.java:
483)
at
com.xtremelabs.robolectric.RobolectricTestRunner.setupApplicationState(RobolectricTestRunner.java:
360)
at
com.xtremelabs.robolectric.RobolectricTestRunner.internalBeforeTest(RobolectricTestRunner.java:
299)
at
com.xtremelabs.robolectric.RobolectricTestRunner.methodBlock(RobolectricTestRunner.java:
277)
at
org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:
79)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:
71)
at
org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:
49)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
at org.junit.runner.JUnitCore.run(JUnitCore.java:157)
at
com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:
76)
at
com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:
182)
at
com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:
62)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:
39)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:
120)

[Jan Berkel]

i use the following to test JNI code:

class MyJniClass {
 static {
        try {
            System.loadLibrary("libname");
        } catch (UnsatisfiedLinkError e) {
            // only ignore exception in non-android env
            if ("Dalvik".equals(System.getProperty("java.vm.name"))) throw e;
        }
    }
}

then in the testrunner:

public class MyTestRunner  extends RobolectricTestRunner {
   public MyTestRunner(Class testClass) throws InitializationError {
         // remove native calls + replace with shadows
        addClassOrPackageToInstrument("com.example.jni.MyJniClass");
   }

   protected void bindShadowClasses() {
         // bind shadow JNI classes
   }
}

[Fla Lau]

Sorry to resurrect this topic but this solution only works for 1.2.

Do you have a workaround for the 2.+ ?

[Anmin Gong]

Hi Flavien,

  Do you have solution now?

  I'm facing the same problem.

在 2013年7月16日星期二UTC+8下午6时44分24秒，Flavien Laurent写道：

[Cain Wong]

Hello all. Has anyone posted a solution to this problem for 2.+ ?

[Guillaume Bero]

Did you manage to get it working ?

[AmArAiAr Pathak]

 I am facing the same issue , is there a way to resolve this ? Could not find anything for 2.x on other groups and discussions as well.

[Chandra]

Has anyone found a solution to this - I am stuck on this too.

[Cain Wong]

I ultimately got around this by abstracting the JNI behind an interface, and using mocks so that JNI is not needed for my tests at all.