mockito-kotlin: Doesn't work for Android tests

I am using this lib successfully for unit tests, but when I try to use it for an instrumented Android test, I get the following: Use:

import com.nhaarman.mockito_kotlin.mock
val n: AppData = mock()

Error:

java.lang.NoClassDefFoundError: Failed resolution of: Lcom/nhaarman/mockito_kotlin/MockitoKt;
at com.myproject.tests.Test.testSomething(Test.kt:91)
at java.lang.reflect.Method.invoke(Native Method)
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.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
at org.junit.rules.ExternalResource$1.evaluate(ExternalResource.java:48)
at android.support.test.internal.statement.UiThreadStatement.evaluate(UiThreadStatement.java:55)
at android.support.test.rule.ActivityTestRule$ActivityStatement.evaluate(ActivityTestRule.java:270)
at org.junit.rules.RunRules.evaluate(RunRules.java:20)
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.runners.Suite.runChild(Suite.java:128)
at org.junit.runners.Suite.runChild(Suite.java:27)
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$2.evaluate(ParentRunner.java:268)
at org.junit.runners.ParentRunner.run(ParentRunner.java:363)
at org.junit.runner.JUnitCore.run(JUnitCore.java:137)
at org.junit.runner.JUnitCore.run(JUnitCore.java:115)
at android.support.test.internal.runner.TestExecutor.execute(TestExecutor.java:59)
at android.support.test.runner.AndroidJUnitRunner.onStart(AndroidJUnitRunner.java:262)
at com.jakewharton.u2020.U2020TestRunner.onStart(U2020TestRunner.java:22)
at android.app.Instrumentation$InstrumentationThread.run(Instrumentation.java:1932)
Caused by: java.lang.ClassNotFoundException: Didn't find class "com.nhaarman.mockito_kotlin.MockitoKt" on path: DexPathList[[zip file "/system/framework/android.test.runner.jar", zip file "/data/app/com.myproject.test-1/base.apk", zip file "/data/app/com.myproject-2/base.apk"],nativeLibraryDirectories=[/data/app/com.myproject.test-1/lib/x86, /data/app/com.myproject-2/lib/x86, /data/app/com.myproject.test-1/base.apk!/lib/x86, /data/app/com.myproject-2/base.apk!/lib/x86, /system/lib, /vendor/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
... 34 more

About this issue

Original URL
State: closed
Created 7 years ago
Comments: 16

Most upvoted comments

For the moment, you can do this workaround:

androidTestCompile("com.nhaarman:mockito-kotlin-kt1.1:1.5.0", {
    exclude group: 'org.mockito', module: 'mockito-core'
})
androidTestCompile "org.mockito:mockito-android:2.11.0"

I hope it will be supported soon, in case, I can submit a PR for it.

fondesa on Nov 6, 2017

Am I missing something? This issue is still happening, even with the mockito-android dependency added:

    androidTestImplementation("com.nhaarman.mockitokotlin2:mockito-kotlin:2.0.0-RC1", {
        exclude group: 'org.mockito', module: 'mockito-core'
    })
    androidTestImplementation 'org.mockito:mockito-android:2.19.0'

Error log:

Caused by: org.mockito.exceptions.base.MockitoInitializationException:
Could not initialize inline Byte Buddy mock maker. (This mock maker is not supported on Android.)


IMPORTANT INFORMATION FOR ANDROID USERS:

The regular Byte Buddy mock makers cannot generate code on an Android VM!
To resolve this, please use the 'mockito-android' dependency for your application:
http://search.maven.org/#search%7Cga%7C1%7Ca%3A%22mockito-android%22%20g%3A%22org.mockito%22

Java               : 0.9
JVM vendor name    : The Android Project
JVM vendor version : 2.1.0
JVM name           : Dalvik
JVM version        : 0.9
JVM info           : null
OS name            : Linux
OS version         : 4.4.116-g6999c7c9f794

bogdanzurac on Jun 25, 2018

Doesn’t just adding mockito-android as another dependency work?

androidTestCompile 'com.nhaarman:mockito-kotlin:x.x.x`
androidTestCompile 'org.mockito:mockito-android:x.x.x`

nhaarman on Nov 7, 2017