使用Robolectric时如何加载.so？

W/环境：EXTERNAL_STORAGE 未定义；回到默认状态

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)

进程完成，退出代码 -1

它无法加载 .so 文件。

当我使用

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

它导致java.lang.UnsatisfiedLinkError: no libamapv304 in java.library.path

我怎样才能使用.so使用 Robolectric 完成单元测试？

我会以某种受控的方式加载本机库。为简单起见，假设它位于Application:

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

机器人电动让您可以在测试下调整您的应用程序。你应该创建TestNativeLibApplication在测试文件夹下的同一包中并禁止加载本机库：

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