caowenhua caowenhua - 6 days ago 8
Android Question

How to load .so when using Robolectric?

W/Environment: EXTERNAL_STORAGE undefined; falling back to default

java.lang.UnsatisfiedLinkError: com.autonavi.amap.mapcore.MapCore.nativeNewInstance(Ljava/lang/String;)J
at com.autonavi.amap.mapcore.MapCore.nativeNewInstance(Native Method)
at com.autonavi.amap.mapcore.MapCore.<init>(MapCore.java:62)
at com.amap.api.mapcore.AMapDelegateImpGLSurfaceView.<init>(AMapDelegateImpGLSurfaceView.java:356)
at com.amap.api.mapcore.AMapDelegateImpGLSurfaceView.<init>(AMapDelegateImpGLSurfaceView.java:318)
at com.amap.api.mapcore.ak.a(MapFragmentDelegateImp.java:123)
at com.amap.api.maps.MapView.onCreate(MapView.java:131)
at com.e.activity.DriverReleaseActivity.initData(DriverReleaseActivity.java:179)
at com.e.base.BaseActivity.onCreate(BaseActivity.java:29)
at android.app.Activity.performCreate(Activity.java:5933)
at org.robolectric.util.ReflectionHelpers.callInstanceMethod(ReflectionHelpers.java:195)
at org.robolectric.util.ActivityController$1.run(ActivityController.java:122)
at org.robolectric.shadows.ShadowLooper.runPaused(ShadowLooper.java:304)
at org.robolectric.shadows.CoreShadowsAdapter$2.runPaused(CoreShadowsAdapter.java:45)
at org.robolectric.util.ActivityController.create(ActivityController.java:118)
at org.robolectric.util.ActivityController.create(ActivityController.java:129)
at com.enjoytech.ecar.carpooling.activity.DriverReleaseAcitivityTest.init(DriverReleaseAcitivityTest.java:87)
at com.enjoytech.ecar.carpooling.activity.DriverReleaseAcitivityTest.test(DriverReleaseAcitivityTest.java:79)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)
at org.robolectric.RobolectricTestRunner$2.evaluate(RobolectricTestRunner.java:251)
at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:188)
at org.robolectric.RobolectricTestRunner.runChild(RobolectricTestRunner.java:54)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)
at org.robolectric.RobolectricTestRunner$1.evaluate(RobolectricTestRunner.java:152)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:140)


Process finished with exit code -1

It couldn't load the .so file.

When I use

try {
System.loadLibrary("libamapv304");
System.loadLibrary("libamapv304ex");
} catch (UnsatisfiedLinkError e) {
e.printStackTrace();
}


it cause
java.lang.UnsatisfiedLinkError: no libamapv304 in java.library.path


How can I using
.so
to complete unit test with Roboletric?

Answer

I would load native libraries in some controlled way. For simplicity let assume it is in Application:

public class NativeLibApplication extends Application {
    ...
    protected void loadNativeLibraries() {
        try {      
            System.loadLibrary("libamapv304");
            System.loadLibrary("libamapv304ex");
        } catch (UnsatisfiedLinkError e) {
            ...
        }
    }
    ...
}

Robolectric gives you a possibility to tweak your application under the test. You should create TestNativeLibApplication in the same package under test folder and suppress loading native libraries:

public class TestNativeLibApplication extends NativeLibApplication {
    ...
    @Override
    protected void loadNativeLibraries() {
        //do nothing
    }
    ...
}
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