Junit (DBUnit) tests fail with Maven but not in Eclipse?

Question

My Junit tests use DBUnit and they run fine when run from Eclipse. However, running the same tests with Maven fails one test with:

integrity constraint violation: foreign key no action

I have tried running that test and the entire set of tests from eclipse GUI ("run as JUnit test") several times in a row and they never fail - but from Maven they do fail.

I use @DatabaseSetup for each test, but is it enough to really reset the database? I also thought Maven might run the tests in parallel so I tried setting forkMode to "always" for Surefire plugin in my pom.xml, but it didn't change anything.

Answer 1

Your are using the annotation @DatabaseSetUp from spring-test DBUnit for the database initialization. You should use the annotation @DatabaseTearDown too.

From the spring-test DBUnit documentation :

The @DatabaseTearDown annotation can be used to reset database tables once a test has completed. As with @DatabaseSetup the annotation can be applied at the method or class level. When using @DatabaseTearDown use the value and type attributes in the same way as @DatabaseSetup.

Answer 2

I had a similar Problem refering to encoding used in the JVM during the maven tests.

I added following to my pom.xml:

<plugins>
    ...
    <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-surefire-plugin</artifactId>
        <configuration>
            <junitArtifactName>junit:junit</junitArtifactName>
            <encoding>UTF-8</encoding>
            <inputEncoding>UTF-8</inputEncoding>
            <outputEncoding>UTF-8</outputEncoding>
            <argLine>-Xms256m -Xmx512m -XX:MaxPermSize=128m -ea
                -Dfile.encoding=UTF-8</argLine>
        </configuration>
    </plugin>
</plugins>

See also herer http://carlobertoldi.wordpress.com/2012/03/12/maven-unit-tests-and-those-funny-characters/

This solved my problems