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couchbase / couchbase-lite-android-ce

The community edition of couchbase lite for android
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java.lang.UnsatisfiedLinkError CB 2.5 when making unit tests #12

Closed rafaelrodriguez342 closed 5 years ago

rafaelrodriguez342 commented 5 years ago

Unit tests not working anymore when upgrading to 2.5 couchbase, Document and Database class cannot be mocked see relate 

java.lang.UnsatisfiedLinkError: com.couchbase.litecore.C4Log.setLevel(Ljava/lang/String;I)V
at com.couchbase.litecore.C4Log.setLevel(Native Method)
at com.couchbase.lite.FileLogger.setupDomainObjects(FileLogger.java:101)
at com.couchbase.lite.FileLogger.(FileLogger.java:47)
at com.couchbase.lite.Log.(Log.java:31)
at com.couchbase.lite.AbstractDatabase.(AbstractDatabase.java:77)
at sun.reflect.GeneratedSerializationConstructorAccessor2.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.objenesis.instantiator.sun.SunReflectionFactoryInstantiator.newInstance(SunReflectionFactoryInstantiator.java:48)
at org.objenesis.ObjenesisBase.newInstance(ObjenesisBase.java:73)
at org.mockito.internal.creation.instance.ObjenesisInstantiator.newInstance(ObjenesisInstantiator.java:19)
at org.mockito.internal.creation.bytebuddy.InlineByteBuddyMockMaker.createMock(InlineByteBuddyMockMaker.java:185)
at org.mockito.internal.util.MockUtil.createMock(MockUtil.java:35)
at org.mockito.internal.MockitoCore.mock(MockitoCore.java:69)
at org.mockito.Mockito.mock(Mockito.java:1895)
at org.mockito.internal.configuration.MockAnnotationProcessor.processAnnotationForMock(MockAnnotationProcessor.java:41)
at org.mockito.internal.configuration.MockAnnotationProcessor.process(MockAnnotationProcessor.java:19)
at org.mockito.internal.configuration.MockAnnotationProcessor.process(MockAnnotationProcessor.java:16)
at org.mockito.internal.configuration.IndependentAnnotationEngine.createMockFor(IndependentAnnotationEngine.java:38)
at org.mockito.internal.configuration.IndependentAnnotationEngine.process(IndependentAnnotationEngine.java:62)
at org.mockito.internal.configuration.InjectingAnnotationEngine.processIndependentAnnotations(InjectingAnnotationEngine.java:57)
at org.mockito.internal.configuration.InjectingAnnotationEngine.process(InjectingAnnotationEngine.java:41)
at org.mockito.MockitoAnnotations.initMocks(MockitoAnnotations.java:69)
at com.disney.wdpro.dash.couchbase.TestMockito.beforeEachTest(TestMockito.java:17)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
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.RunBefores.evaluate(RunBefores.java:24)
at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)
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$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

This is an example in which the issue can be reproduced easily using com.couchbase.lite:couchbase-lite-android:2.5.0

import com.couchbase.lite.Database
import com.couchbase.lite.Document

@Mock
Database database;
@Mock
Document document;

@Before
public void beforeEachTest() {
    MockitoAnnotations.initMocks(this);
}

@Test
public void test() {
    assert (true);
}
bmeike commented 5 years ago

Moving this issue to the couchbase-lite-android-ce repository. Please follow it there.

bmeike commented 5 years ago

The error you are seeing is caused by the Virtual Machine's inability to load a native library appropriate for the machine on which you are doing your testing. This is a fairly typical problem that arises when trying to mock Objects that have native components. You may be able to work around it in one of two ways: 1) Be sure that you can run your tests without mocking the native objects. That is, make sure that, e.g., you can create and use a Database object on your test platform. If the objects can be created, then their mocks can probably be created, too. 2) Better: Do not use Couchbase objects directly. Hide them behind interfaces and then mock those interfaces. This is the only way to guarantee testability.