Android Unit Test throws NoClassDefFoundError in Log

Question

I get an error java.lang.NoClassDefFoundError: android/util/Logwhen I try to run my unit test project in Eclipse.

Distilled, my test code looks like this:

package com.randomtype.yycparking;

import junit.framework.TestCase;
import android.util.Log;

public class StallTests extends TestCase {  
    public void setUp() {
        Log.v("HI", "Fail");
    }

    public void testShouldParseIdFromTitle() {
        assertTrue(true);
    }
}

And the code throws an exception when called Log.v. When I usually run the android project, I get no exceptions with respect to Log.

Full stack trace:

java.lang.NoClassDefFoundError: android/util/Log
    at com.randomtype.yycparking.StallTests.setUp(StallTests.java:11)
    at junit.framework.TestCase.runBare(TestCase.java:132)
    at junit.framework.TestResult$1.protect(TestResult.java:110)
    at junit.framework.TestResult.runProtected(TestResult.java:128)
    at junit.framework.TestResult.run(TestResult.java:113)
    at junit.framework.TestCase.run(TestCase.java:124)
    at junit.framework.TestSuite.runTest(TestSuite.java:243)
    at junit.framework.TestSuite.run(TestSuite.java:238)
    at org.eclipse.jdt.internal.junit.runner.junit3.JUnit3TestReference.run(JUnit3TestReference.java:130)
    at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)
Caused by: java.lang.ClassNotFoundException: android.util.Log
    at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    ... 14 more

---

As dtmilano pointed out, I did not run unit tests like Android JUnit Test. How can you tell? Find small a , as in the picture below:

_{(source: skitch.com )}

Answer 1

Android ( → Android → Android), Android JUnit Test ( → Android JUnit).

Answer 2

 android {
  // ...
  testOptions { 
    unitTests.returnDefaultValues = true
  }
}

http://tools.android.com/tech-docs/unit-testing-support#TOC-Method-...-not-mocked.-

: build.gradle, 23 compileSdkVersion , targetSdkVersion, .

Answer 3

, ...

, AndroidManifest.xml:

<instrumentation
        android:name="android.test.InstrumentationTestRunner"
        android:targetPackage="micharg.nameanimalthing" />

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