ShrinkWrap's .addAsResource in Arquillian's persistance guide

Question

I am studying Arquillian platform. I am following
http://arquillian.org/guides/testing_java_persistence/#write_the_test
at a certain point of the guide, you can read:

"We define the Persistence Unit in a test-persistence.xml file that’s corresponding to the target container. ShrinkWrap takes this file from the classpath and puts it into its standard location within the archive."

.addAsResource("test-persistence.xml", "META-INF/persistence.xml")

You can see this command in

src/test/java/org/arquillian/example/GamePersistenceTest.java that is in the upper part of the page.

So my question is: is this piece of the guide a simply explanation of that code line, or is something you have to add into another class to do the example?

Answer 1

No, it's just explaining that line, it means you need to add this file onto classpath with ShrinkWrap in order to make the persistence work.