Project Title: JUnit4 and Maven Example Description: A minimal example. Demonstrates how to use JUnit4 and Maven Project URL: git://github.com/sastay/JUnit4-and-Maven-Example.git

Author: Sascha Tayefeh Author URL: http://www.tayefeh.de Date: 2010-07-10

When I migrated an old project from JUnit3 to JUnit4, I ran into some problems. mvn:test produced an error:

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junit.framework.AssertionFailedError: No tests found in minimal.DoSomeActionTest

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The test classes were no longer available. I found that I had to

1. remove inheritance from :TestCase() and annotate all test methods with @Test

This project provides a trivial scenario (refer to src/test/java/minimal/DoSomeActionTest.java):

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package minimal;

import static org.junit.Assert.assertTrue; import org.junit.Test;

/**

• Trivial test class. Demonstrates the syntax of JUnit4.
• Important: Do NOT inherit this class from TestCase() or JUnit3.x is enforced

• @author Sascha Tayefeh */ public class DoSomeActionTest { @Test public void testIsThisReallyTrue() { assertTrue(true); } }

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Also mind the pom.xml which includes the maven-compiler-plugin to enforce Java 1.6 incl. annotations:

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 <plugin>
     <groupId>org.apache.maven.plugins</groupId>
     <artifactId>maven-compiler-plugin</artifactId>
     <version>2.3.1</version>
     <configuration>
         <source>1.6</source>
         <target>1.6</target>
         <encoding>UTF-8</encoding>
     </configuration>
 </plugin>

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When running mvn:test you should get following positive message:

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T E S T S

Running minimal.DoSomeActionTest Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.047 sec

Results :

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0

[INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESSFUL [INFO] ------------------------------------------------------------------------ [INFO] Total time: 2 seconds [INFO] Finished at: Mon Jul 12 17:22:44 CEST 2010 [INFO] Final Memory: 10M/19M [INFO] ------------------------------------------------------------------------

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Ref:

1. http://www.junit.org
2. http://www.tayefeh.de/2010/07/junit4-and-maven-minimal-example