kotlin verion: 1.3.61
Android Gradle Plugin: 3.5.3
JaCoCo Version: 0.8.4.201905082037 (default android gradle version)
project: https://github.com/goldy1992/Mp3Player/tree/feature/issue-112/migrate-to-kotlin
I have a multi module gradle project with: 2 flavours: full, automation 2 build types: release, debug
I'm in the process of migrating everything to kotlin.
Module structure
- commons [android library] (works as expected with test coverage)
- client-test-support (used for test implementations of activities)
- client [android library] (no coverage) -> depends on commons, client-test-support
- service-test-support (used for test implementations of activities)
- service [android library] (no coverage) -> depends on commons, service-test-support
- app [android application] no tests
For the context of this posts, I'm only interested in unit tests
The tests run as expected however no coverage is generated due to a SOME (not all) of the kotlin compiled classes being recognised as "instrumented classes"
The errors appear just as the tests are about to being where the following is printed out for many classes:
java.lang.instrument.IllegalClassFormatException: Error while instrumenting com/github/goldy1992/mp3player/client/views/viewholders/MediaPlayerTrackViewHolder.
at org.jacoco.agent.rt.internal_035b120.CoverageTransformer.transform(CoverageTransformer.java:93)
at sun.instrument.TransformerManager.transform(TransformerManager.java:188)
at sun.instrument.InstrumentationImpl.transform(InstrumentationImpl.java:428)
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java:763)
at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
at java.net.URLClassLoader.defineClass(URLClassLoader.java:468)
at java.net.URLClassLoader.access$100(URLClassLoader.java:74)
at java.net.URLClassLoader$1.run(URLClassLoader.java:369)
at java.net.URLClassLoader$1.run(URLClassLoader.java:363)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:362)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.getDeclaredFields0(Native Method)
at java.lang.Class.privateGetDeclaredFields(Class.java:2583)
at java.lang.Class.getDeclaredFields(Class.java:1916)
at org.junit.runners.model.TestClass.getSortedDeclaredFields(TestClass.java:77)
at org.junit.runners.model.TestClass.scanAnnotatedMembers(TestClass.java:70)
at org.junit.runners.model.TestClass.<init>(TestClass.java:57)
at org.junit.runners.ParentRunner.createTestClass(ParentRunner.java:88)
at org.junit.runners.ParentRunner.<init>(ParentRunner.java:83)
at org.junit.runners.BlockJUnit4ClassRunner.<init>(BlockJUnit4ClassRunner.java:65)
at org.robolectric.internal.SandboxTestRunner.<init>(SandboxTestRunner.java:71)
at org.robolectric.RobolectricTestRunner.<init>(RobolectricTestRunner.java:101)
at org.robolectric.RobolectricTestRunner.<init>(RobolectricTestRunner.java:96)
at sun.reflect.GeneratedConstructorAccessor5.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.junit.internal.builders.AnnotatedBuilder.buildRunner(AnnotatedBuilder.java:104)
at org.junit.vintage.engine.discovery.DefensiveAllDefaultPossibilitiesBuilder$DefensiveAnnotatedBuilder.buildRunner(DefensiveAllDefaultPossibilitiesBuilder.java:113)
at org.junit.internal.builders.AnnotatedBuilder.runnerForClass(AnnotatedBuilder.java:86)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:26)
at org.junit.vintage.engine.discovery.DefensiveAllDefaultPossibilitiesBuilder.runnerForClass(DefensiveAllDefaultPossibilitiesBuilder.java:56)
at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:59)
at org.junit.vintage.engine.discovery.TestClassRequestResolver.createRunnerTestDescriptor(TestClassRequestResolver.java:55)
at org.junit.vintage.engine.discovery.VintageDiscoverer.lambda$discover$0(VintageDiscoverer.java:53)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
at java.util.stream.ReferencePipeline$3$1.accept(ReferencePipeline.java:193)
at java.util.Iterator.forEachRemaining(Iterator.java:116)
at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.StreamSpliterators$WrappingSpliterator.forEachRemaining(StreamSpliterators.java:312)
at java.util.stream.Streams$ConcatSpliterator.forEachRemaining(Streams.java:742)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
at org.junit.vintage.engine.discovery.VintageDiscoverer.discover(VintageDiscoverer.java:55)
at org.junit.vintage.engine.VintageTestEngine.discover(VintageTestEngine.java:62)
at org.junit.platform.launcher.core.DefaultLauncher.discoverEngineRoot(DefaultLauncher.java:168)
at org.junit.platform.launcher.core.DefaultLauncher.discoverRoot(DefaultLauncher.java:155)
at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:128)
at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.processAllTestClasses(JUnitPlatformTestClassProcessor.java:102)
at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor$CollectAllTestClassesExecutor.access$000(JUnitPlatformTestClassProcessor.java:82)
at org.gradle.api.internal.tasks.testing.junitplatform.JUnitPlatformTestClassProcessor.stop(JUnitPlatformTestClassProcessor.java:78)
at org.gradle.api.internal.tasks.testing.SuiteTestClassProcessor.stop(SuiteTestClassProcessor.java:61)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.internal.dispatch.ContextClassLoaderDispatch.dispatch(ContextClassLoaderDispatch.java:33)
at org.gradle.internal.dispatch.ProxyDispatchAdapter$DispatchingInvocationHandler.invoke(ProxyDispatchAdapter.java:94)
at com.sun.proxy.$Proxy2.stop(Unknown Source)
at org.gradle.api.internal.tasks.testing.worker.TestWorker.stop(TestWorker.java:132)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:36)
at org.gradle.internal.dispatch.ReflectionDispatch.dispatch(ReflectionDispatch.java:24)
at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:182)
at org.gradle.internal.remote.internal.hub.MessageHubBackedObjectConnection$DispatchWrapper.dispatch(MessageHubBackedObjectConnection.java:164)
at org.gradle.internal.remote.internal.hub.MessageHub$Handler.run(MessageHub.java:412)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:64)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:48)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:56)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Error while instrumenting com/github/goldy1992/mp3player/client/views/viewholders/MediaPlayerTrackViewHolder.
at org.jacoco.agent.rt.internal_035b120.core.instr.Instrumenter.instrumentError(Instrumenter.java:158)
at org.jacoco.agent.rt.internal_035b120.core.instr.Instrumenter.instrument(Instrumenter.java:108)
at org.jacoco.agent.rt.internal_035b120.CoverageTransformer.transform(CoverageTransformer.java:91)
... 86 more
Caused by: java.lang.IllegalStateException: Cannot process instrumented class com/github/goldy1992/mp3player/client/views/viewholders/MediaPlayerTrackViewHolder. Please supply original non-instrumented classes.
at org.jacoco.agent.rt.internal_035b120.core.internal.instr.InstrSupport.assertNotInstrumented(InstrSupport.java:237)
at org.jacoco.agent.rt.internal_035b120.core.internal.instr.ClassInstrumenter.visitField(ClassInstrumenter.java:55)
at org.jacoco.agent.rt.internal_035b120.asm.ClassVisitor.visitField(ClassVisitor.java:287)
at org.jacoco.agent.rt.internal_035b120.asm.ClassReader.readField(ClassReader.java:906)
at org.jacoco.agent.rt.internal_035b120.asm.ClassReader.accept(ClassReader.java:683)
at org.jacoco.agent.rt.internal_035b120.asm.ClassReader.accept(ClassReader.java:400)
at org.jacoco.agent.rt.internal_035b120.core.instr.Instrumenter.instrument(Instrumenter.java:88)
at org.jacoco.agent.rt.internal_035b120.core.instr.Instrumenter.instrument(Instrumenter.java:106)
... 87 more
To try and get to the root of the problem I am just running the client unit tests
Client build.gradle
apply plugin: 'com.android.library'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'
apply plugin: 'de.mannodermaus.android-junit5'
apply plugin: 'jacoco'
android {
compileSdkVersion TARGET_SDK_VERION
buildToolsVersion BUILD_TOOLS_VERSION
defaultConfig {
minSdkVersion MIN_SDK_VERSION
targetSdkVersion TARGET_SDK_VERION
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
consumerProguardFiles 'consumer-rules.pro'
vectorDrawables.useSupportLibrary = true
}
buildTypes {
release {
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
debug {
debuggable true
minifyEnabled false
testCoverageEnabled = true
}
}
flavorDimensions 'default'
productFlavors {
full {
dimension = 'default'
}
automation {
dimension = 'default'
}
}
compileOptions {
incremental = false
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions { jvmTarget = "1.8" }
testOptions {
execution 'ANDROID_TEST_ORCHESTRATOR'
animationsDisabled true
unitTests {
includeAndroidResources = true
returnDefaultValues = true
}
unitTests.all {
testLogging {
events "passed", "skipped", "failed", "standardOut", "standardError"
outputs.upToDateWhen {false}
showStandardStreams = true
}
}
}
sourceSets {
main.java.srcDirs += 'src/main/java'
test.java.srcDirs += 'src/test/java'
androidTest.java.srcDirs += 'src/androidTest/java'
}
}
dependencies {
implementation project(path: ':commons')
testApi project(":client:testsupport")
/* MORE DEPENDENCIES NOT RELEVANT TO ISSUE */
}
It may be worth noting that I am using Dagger 2.25.2
Execution data dir: ${projectRootDir}/client/build/jacoco/testFullDebugUnitTest.exec
Source dir: ${projectRootDir}/client/src/main/java
class dir: ${projectRootDir}/client/build/intermediates/javac/fullDebug/classes/, ${projectRootDir}/client/build/tmp/kotlin-classes/fullDebug/
UPDATE 1:
From making a new branch and and renaming all the classes and test classes in the client module to CLASS_NAME.kt.old I can confirm that there seems to be no connection between the IllegalClassFormatException and the no coverage.I will therefore update the questions to be the following
UPDATE 2:
After further experimenting with update 1 it seems that the exceptions go away and coverage is calculated as expected WHEN there is no dependency on the sub (test) module, i.e. remove the line testApi project(":client:testsupport")from the gradle file. The problem is that I need this testsupportmodule in order to execute my activity tests (which are currently not run because they are in a .old file as per update 1 ^^.
Questions updated as per udate 2 How can I configure JaCoCo to support sub module test implementation of android classes as suggested by the robolectric team in this pull request.
Will update post if more information is required
