Problem in JUnit

[Roopesh Rana]

I am very new in Junit testing I have a test class and a main class which class I want to test.
I wrote every related test case in test fine. But there is an exception.

LicensingApplicationTest.java
//This is my Test Class

package licensing.Unit.test;

import mathoperation.Operations;

import org.junit.Assert;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;

import common.ColpException;

public class LicensingApplicationTest {
	
	Operations operation;

	@Before
	public void Setup()
	{
		operation=new Operations();
	}
	
	@Test
	public void TestAdd()
	{
		int expectedValue=5;
		Assert.assertEquals(operation.Add(2, 3), expectedValue);
	}
	
	@Ignore
	@Test
	public void TestFail() throws Exception
	{
		Assert.assertEquals(false, true);
	}
	
	
	
//    protected static class ColpExceptionMatcher  extends ArgumentMatcher<ColpException>
//    {
//        public boolean matches(Object param)
//        {
//            return param instanceof ColpException;
//        }
//    }

	
}


Operations.java
//This is my main class which i want to test

package mathoperation;

public class Operations {

	public int Add(int arg1, int arg2)
	{
		return arg1 + arg2;
	}
	
	public int Sub(int arg1, int arg2)
	{
		return arg1-arg2;
	}
	
	public int Multi(int arg1, int arg2)
	{
		return arg1*arg2;
	}
	
	public float Div(int arg1,int arg2) throws Exception
	{
		if(arg2==0)
		{
			throw new Exception();
		}
		
		return arg1/arg2;
	}
	
}


[code=java]

// Exception is

java.lang.NoClassDefFoundError: org/hamcrest/SelfDescribing
	at java.lang.ClassLoader.defineClass1(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:621)
	at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124)
	at java.net.URLClassLoader.defineClass(URLClassLoader.java:260)
	at java.net.URLClassLoader.access$000(URLClassLoader.java:56)
	at java.net.URLClassLoader$1.run(URLClassLoader.java:195)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
	at org.junit.internal.builders.JUnit4Builder.runnerForClass(JUnit4Builder.java:13)
	at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:58)
	at org.junit.internal.builders.AllDefaultPossibilitiesBuilder.runnerForClass(AllDefaultPossibilitiesBuilder.java:29)
	at org.junit.runners.model.RunnerBuilder.safeRunnerForClass(RunnerBuilder.java:58)
	at org.junit.internal.requests.ClassRequest.getRunner(ClassRequest.java:27)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.<init>(JUnit4TestReference.java:28)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestClassReference.<init>(JUnit4TestClassReference.java:24)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.createTest(JUnit4TestLoader.java:40)
	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestLoader.loadTests(JUnit4TestLoader.java:30)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:445)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:673)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:386)
	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:196)
Caused by: java.lang.ClassNotFoundException: org.hamcrest.SelfDescribing
	at java.net.URLClassLoader$1.run(URLClassLoader.java:200)
	at java.security.AccessController.doPrivileged(Native Method)
	at java.net.URLClassLoader.findClass(URLClassLoader.java:188)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:252)
	at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320)
	... 25 more

[/code]

[Bill Gorder]

Are you using maven? What does your POM look like?

[shivamahesh bachu]

Hi Roopesh Rana,

I Executed your code in eclipse , it runs and test cases got passed.


Thank You,
Mahesh.

[Bill Gorder]

Make sure you don't have multiple versions of that library on your classpath.