java.lang.NoClassDefFoundError：android / test / AndroidTestCase

Question

Hi i am getting the following error when trying to run my unit tests in eclipse:

java.lang.NoClassDefFoundError: android/test/AndroidTestCase
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClassCond(ClassLoader.java:631)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:615)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:141)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:283)
    at java.net.URLClassLoader.access$000(URLClassLoader.java:58)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:197)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
    at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.loadClass(RemoteTestRunner.java:693)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.loadClasses(RemoteTestRunner.java:429)
    at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:452)
    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.test.AndroidTestCase
    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)
    ... 18 more

Test class

public class ResponseUtilTest extends AndroidTestCase {

    private BubbleResponseUtil responseUtil;

    private static final String TAG = ResponseUtilTest.class.getSimpleName();

    @Override
    protected void setUp() throws Exception {
        super.setUp();

        responseUtil = new ResponseUtil();
    }

    @Override
    protected void tearDown() throws Exception {
        super.tearDown();
    }

    public void testGetdata() {

    }

    public void testIsOkMessage() {

    }

    public void testIsRetryMessage() {

    }

    public void testIsMatchedCRC() {

    }

}

Thanks all i am using the Android sdk Eclipse edition i got from the android dev website.

Thanks again

Answer 1

You'll need to run your AndroidTestCase towards the device/emulator. I'm guessing you're just running it as a regular JUnit3 / JUnit4 test case?

Answer 2

ninetwozero is correct. There is no device for the AndroidTestCase to run on. You either need to attach a real device or create an Android Virtual Device (emulator) with the characteristics of your device.

Right click the project with your tests in it, then Run As->Run Configurations. Select Android JUnit Test, click "New Launch Configuration" button. Go to "Target" tab; use "Manager" button on bottom right to create your new emulator. I'm sure other articles cover how to set up an emulator.